Ravishankar Sarawadi | 2293efe | 2013-01-11 16:37:23 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/firmware.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/device.h> |
| 18 | #include <linux/printk.h> |
| 19 | #include <linux/ratelimit.h> |
| 20 | #include <linux/debugfs.h> |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 21 | #include <linux/list.h> |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 22 | #include <linux/mfd/wcd9xxx/core.h> |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 23 | #include <linux/mfd/wcd9xxx/core-resource.h> |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 24 | #include <linux/mfd/wcd9xxx/wcd9xxx_registers.h> |
| 25 | #include <linux/mfd/wcd9xxx/wcd9320_registers.h> |
| 26 | #include <linux/mfd/wcd9xxx/pdata.h> |
| 27 | #include <sound/pcm.h> |
| 28 | #include <sound/pcm_params.h> |
| 29 | #include <sound/soc.h> |
| 30 | #include <sound/soc-dapm.h> |
| 31 | #include <sound/tlv.h> |
| 32 | #include <linux/bitops.h> |
| 33 | #include <linux/delay.h> |
| 34 | #include <linux/pm_runtime.h> |
| 35 | #include <linux/kernel.h> |
| 36 | #include <linux/gpio.h> |
Phani Kumar Uppalapati | 447a829 | 2013-07-26 16:26:04 -0700 | [diff] [blame] | 37 | #include <linux/input.h> |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 38 | #include "wcd9320.h" |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 39 | #include "wcd9306.h" |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 40 | #include "wcd9xxx-mbhc.h" |
| 41 | #include "wcd9xxx-resmgr.h" |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 42 | #include "wcd9xxx-common.h" |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 43 | |
| 44 | #define WCD9XXX_JACK_MASK (SND_JACK_HEADSET | SND_JACK_OC_HPHL | \ |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 45 | SND_JACK_OC_HPHR | SND_JACK_LINEOUT | \ |
| 46 | SND_JACK_UNSUPPORTED) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 47 | #define WCD9XXX_JACK_BUTTON_MASK (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \ |
| 48 | SND_JACK_BTN_2 | SND_JACK_BTN_3 | \ |
| 49 | SND_JACK_BTN_4 | SND_JACK_BTN_5 | \ |
| 50 | SND_JACK_BTN_6 | SND_JACK_BTN_7) |
| 51 | |
| 52 | #define NUM_DCE_PLUG_DETECT 3 |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 53 | #define NUM_DCE_PLUG_INS_DETECT 5 |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 54 | #define NUM_ATTEMPTS_INSERT_DETECT 25 |
| 55 | #define NUM_ATTEMPTS_TO_REPORT 5 |
| 56 | |
| 57 | #define FAKE_INS_LOW 10 |
| 58 | #define FAKE_INS_HIGH 80 |
| 59 | #define FAKE_INS_HIGH_NO_SWCH 150 |
| 60 | #define FAKE_REMOVAL_MIN_PERIOD_MS 50 |
| 61 | #define FAKE_INS_DELTA_SCALED_MV 300 |
| 62 | |
| 63 | #define BUTTON_MIN 0x8000 |
| 64 | #define STATUS_REL_DETECTION 0x0C |
| 65 | |
| 66 | #define HS_DETECT_PLUG_TIME_MS (5 * 1000) |
| 67 | #define HS_DETECT_PLUG_INERVAL_MS 100 |
| 68 | #define SWCH_REL_DEBOUNCE_TIME_MS 50 |
| 69 | #define SWCH_IRQ_DEBOUNCE_TIME_US 5000 |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 70 | #define BTN_RELEASE_DEBOUNCE_TIME_MS 25 |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 71 | |
| 72 | #define GND_MIC_SWAP_THRESHOLD 2 |
| 73 | #define OCP_ATTEMPT 1 |
| 74 | |
| 75 | #define FW_READ_ATTEMPTS 15 |
| 76 | #define FW_READ_TIMEOUT 2000000 |
| 77 | |
Joonwoo Park | 2e6bd1e | 2012-10-18 13:48:55 -0700 | [diff] [blame] | 78 | #define BUTTON_POLLING_SUPPORTED true |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 79 | |
| 80 | #define MCLK_RATE_12288KHZ 12288000 |
| 81 | #define MCLK_RATE_9600KHZ 9600000 |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 82 | |
| 83 | #define DEFAULT_DCE_STA_WAIT 55 |
| 84 | #define DEFAULT_DCE_WAIT 60000 |
| 85 | #define DEFAULT_STA_WAIT 5000 |
| 86 | |
| 87 | #define VDDIO_MICBIAS_MV 1800 |
| 88 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 89 | #define WCD9XXX_MICBIAS_PULLDOWN_SETTLE_US 5000 |
| 90 | |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 91 | #define WCD9XXX_HPHL_STATUS_READY_WAIT_US 1000 |
Joonwoo Park | aec97c7 | 2013-05-14 16:51:02 -0700 | [diff] [blame] | 92 | #define WCD9XXX_MUX_SWITCH_READY_WAIT_MS 50 |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 93 | #define WCD9XXX_MEAS_DELTA_MAX_MV 50 |
Joonwoo Park | 141d618 | 2013-03-05 12:25:46 -0800 | [diff] [blame] | 94 | #define WCD9XXX_MEAS_INVALD_RANGE_LOW_MV 20 |
| 95 | #define WCD9XXX_MEAS_INVALD_RANGE_HIGH_MV 80 |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 96 | |
| 97 | /* |
| 98 | * Invalid voltage range for the detection |
| 99 | * of plug type with current source |
| 100 | */ |
| 101 | #define WCD9XXX_CS_MEAS_INVALD_RANGE_LOW_MV 110 |
| 102 | #define WCD9XXX_CS_MEAS_INVALD_RANGE_HIGH_MV 265 |
| 103 | |
| 104 | /* |
| 105 | * Threshold used to detect euro headset |
| 106 | * with current source |
| 107 | */ |
| 108 | #define WCD9XXX_CS_GM_SWAP_THRES_MIN_MV 10 |
| 109 | #define WCD9XXX_CS_GM_SWAP_THRES_MAX_MV 40 |
| 110 | |
| 111 | #define WCD9XXX_MBHC_NSC_CS 9 |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 112 | #define WCD9XXX_GM_SWAP_THRES_MIN_MV 150 |
Joonwoo Park | 479347a | 2013-04-15 18:01:05 -0700 | [diff] [blame] | 113 | #define WCD9XXX_GM_SWAP_THRES_MAX_MV 650 |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 114 | #define WCD9XXX_THRESHOLD_MIC_THRESHOLD 200 |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 115 | |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 116 | #define WCD9XXX_USLEEP_RANGE_MARGIN_US 100 |
| 117 | |
| 118 | /* RX_HPH_CNP_WG_TIME increases by 0.24ms */ |
| 119 | #define WCD9XXX_WG_TIME_FACTOR_US 240 |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 120 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 121 | #define WCD9XXX_V_CS_HS_MAX 500 |
| 122 | #define WCD9XXX_V_CS_NO_MIC 5 |
| 123 | #define WCD9XXX_MB_MEAS_DELTA_MAX_MV 80 |
| 124 | #define WCD9XXX_CS_MEAS_DELTA_MAX_MV 10 |
| 125 | |
Phani Kumar Uppalapati | 381fbc8 | 2013-09-19 17:11:31 -0700 | [diff] [blame] | 126 | static int impedance_detect_en; |
| 127 | module_param(impedance_detect_en, int, |
| 128 | S_IRUGO | S_IWUSR | S_IWGRP); |
| 129 | MODULE_PARM_DESC(impedance_detect_en, "enable/disable impedance detect"); |
| 130 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 131 | static bool detect_use_vddio_switch = true; |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 132 | |
| 133 | struct wcd9xxx_mbhc_detect { |
| 134 | u16 dce; |
| 135 | u16 sta; |
| 136 | u16 hphl_status; |
| 137 | bool swap_gnd; |
| 138 | bool vddio; |
| 139 | bool hwvalue; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 140 | bool mic_bias; |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 141 | /* internal purpose from here */ |
| 142 | bool _above_no_mic; |
| 143 | bool _below_v_hs_max; |
| 144 | s16 _vdces; |
| 145 | enum wcd9xxx_mbhc_plug_type _type; |
| 146 | }; |
| 147 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 148 | enum meas_type { |
| 149 | STA = 0, |
| 150 | DCE, |
| 151 | }; |
| 152 | |
| 153 | enum { |
| 154 | MBHC_USE_HPHL_TRIGGER = 1, |
| 155 | MBHC_USE_MB_TRIGGER = 2 |
| 156 | }; |
| 157 | |
| 158 | /* |
| 159 | * Flags to track of PA and DAC state. |
| 160 | * PA and DAC should be tracked separately as AUXPGA loopback requires |
| 161 | * only PA to be turned on without DAC being on. |
| 162 | */ |
| 163 | enum pa_dac_ack_flags { |
| 164 | WCD9XXX_HPHL_PA_OFF_ACK = 0, |
| 165 | WCD9XXX_HPHR_PA_OFF_ACK, |
| 166 | WCD9XXX_HPHL_DAC_OFF_ACK, |
| 167 | WCD9XXX_HPHR_DAC_OFF_ACK |
| 168 | }; |
| 169 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 170 | enum wcd9xxx_current_v_idx { |
| 171 | WCD9XXX_CURRENT_V_INS_H, |
| 172 | WCD9XXX_CURRENT_V_INS_HU, |
| 173 | WCD9XXX_CURRENT_V_B1_H, |
| 174 | WCD9XXX_CURRENT_V_B1_HU, |
| 175 | WCD9XXX_CURRENT_V_BR_H, |
| 176 | }; |
| 177 | |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 178 | static int wcd9xxx_detect_impedance(struct wcd9xxx_mbhc *mbhc, uint32_t *zl, |
| 179 | uint32_t *zr); |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 180 | static s16 wcd9xxx_get_current_v(struct wcd9xxx_mbhc *mbhc, |
| 181 | const enum wcd9xxx_current_v_idx idx); |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 182 | static void wcd9xxx_get_z(struct wcd9xxx_mbhc *mbhc, s16 *dce_z, s16 *sta_z); |
| 183 | static void wcd9xxx_mbhc_calc_thres(struct wcd9xxx_mbhc *mbhc); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 184 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 185 | static bool wcd9xxx_mbhc_polling(struct wcd9xxx_mbhc *mbhc) |
| 186 | { |
| 187 | return mbhc->polling_active; |
| 188 | } |
| 189 | |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 190 | static void wcd9xxx_turn_onoff_override(struct wcd9xxx_mbhc *mbhc, bool on) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 191 | { |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 192 | struct snd_soc_codec *codec = mbhc->codec; |
| 193 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 194 | 0x04, on ? 0x04 : 0x00); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | /* called under codec_resource_lock acquisition */ |
| 198 | static void wcd9xxx_pause_hs_polling(struct wcd9xxx_mbhc *mbhc) |
| 199 | { |
| 200 | struct snd_soc_codec *codec = mbhc->codec; |
| 201 | |
| 202 | pr_debug("%s: enter\n", __func__); |
| 203 | if (!mbhc->polling_active) { |
| 204 | pr_debug("polling not active, nothing to pause\n"); |
| 205 | return; |
| 206 | } |
| 207 | |
| 208 | /* Soft reset MBHC block */ |
| 209 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, 0x8); |
| 210 | pr_debug("%s: leave\n", __func__); |
| 211 | } |
| 212 | |
| 213 | /* called under codec_resource_lock acquisition */ |
| 214 | static void wcd9xxx_start_hs_polling(struct wcd9xxx_mbhc *mbhc) |
| 215 | { |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 216 | s16 v_brh, v_b1_hu; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 217 | struct snd_soc_codec *codec = mbhc->codec; |
| 218 | int mbhc_state = mbhc->mbhc_state; |
| 219 | |
| 220 | pr_debug("%s: enter\n", __func__); |
| 221 | if (!mbhc->polling_active) { |
| 222 | pr_debug("Polling is not active, do not start polling\n"); |
| 223 | return; |
| 224 | } |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 225 | |
| 226 | /* |
| 227 | * setup internal micbias if codec uses internal micbias for |
| 228 | * headset detection |
| 229 | */ |
| 230 | if (mbhc->mbhc_cfg->use_int_rbias && !mbhc->int_rbias_on) { |
| 231 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->setup_int_rbias) |
| 232 | mbhc->mbhc_cb->setup_int_rbias(codec, true); |
| 233 | else |
| 234 | pr_err("%s: internal bias requested but codec did not provide callback\n", |
| 235 | __func__); |
| 236 | } |
| 237 | |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 238 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x04); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 239 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 240 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 241 | else |
| 242 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 243 | 0x80, 0x80); |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 244 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 245 | if (!mbhc->no_mic_headset_override && |
| 246 | mbhc_state == MBHC_STATE_POTENTIAL) { |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 247 | pr_debug("%s recovering MBHC state machine\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 248 | mbhc->mbhc_state = MBHC_STATE_POTENTIAL_RECOVERY; |
| 249 | /* set to max button press threshold */ |
| 250 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B2_CTL, 0x7F); |
| 251 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B1_CTL, 0xFF); |
| 252 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, 0x7F); |
| 253 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, 0xFF); |
| 254 | /* set to max */ |
| 255 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B6_CTL, 0x7F); |
| 256 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B5_CTL, 0xFF); |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 257 | |
| 258 | v_brh = wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_BR_H); |
| 259 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B10_CTL, |
| 260 | (v_brh >> 8) & 0xFF); |
| 261 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B9_CTL, |
| 262 | v_brh & 0xFF); |
| 263 | v_b1_hu = wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_HU); |
| 264 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, |
| 265 | v_b1_hu & 0xFF); |
| 266 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, |
| 267 | (v_b1_hu >> 8) & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x1); |
| 271 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, 0x0); |
| 272 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x1); |
| 273 | pr_debug("%s: leave\n", __func__); |
| 274 | } |
| 275 | |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 276 | static int __wcd9xxx_resmgr_get_k_val(struct wcd9xxx_mbhc *mbhc, |
| 277 | unsigned int cfilt_mv) |
| 278 | { |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 279 | return wcd9xxx_resmgr_get_k_val(mbhc->resmgr, cfilt_mv); |
| 280 | } |
| 281 | |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 282 | /* |
| 283 | * called under codec_resource_lock acquisition |
| 284 | * return old status |
| 285 | */ |
| 286 | static bool __wcd9xxx_switch_micbias(struct wcd9xxx_mbhc *mbhc, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 287 | int vddio_switch, bool restartpolling, |
| 288 | bool checkpolling) |
| 289 | { |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 290 | bool ret; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 291 | int cfilt_k_val; |
| 292 | bool override; |
| 293 | struct snd_soc_codec *codec; |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 294 | struct mbhc_internal_cal_data *d = &mbhc->mbhc_data; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 295 | |
| 296 | codec = mbhc->codec; |
| 297 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 298 | if (mbhc->micbias_enable) { |
| 299 | pr_debug("%s: micbias is already on\n", __func__); |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 300 | ret = mbhc->mbhc_micbias_switched; |
| 301 | return ret; |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 302 | } |
| 303 | |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 304 | ret = mbhc->mbhc_micbias_switched; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 305 | if (vddio_switch && !mbhc->mbhc_micbias_switched && |
| 306 | (!checkpolling || mbhc->polling_active)) { |
| 307 | if (restartpolling) |
| 308 | wcd9xxx_pause_hs_polling(mbhc); |
| 309 | override = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_CTL) & |
| 310 | 0x04; |
| 311 | if (!override) |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 312 | wcd9xxx_turn_onoff_override(mbhc, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 313 | /* Adjust threshold if Mic Bias voltage changes */ |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 314 | if (d->micb_mv != VDDIO_MICBIAS_MV) { |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 315 | cfilt_k_val = __wcd9xxx_resmgr_get_k_val(mbhc, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 316 | VDDIO_MICBIAS_MV); |
| 317 | usleep_range(10000, 10000); |
| 318 | snd_soc_update_bits(codec, |
| 319 | mbhc->mbhc_bias_regs.cfilt_val, |
| 320 | 0xFC, (cfilt_k_val << 2)); |
| 321 | usleep_range(10000, 10000); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 322 | /* Threshods for insertion/removal */ |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 323 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B1_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 324 | d->v_ins_hu[MBHC_V_IDX_VDDIO] & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 325 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B2_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 326 | (d->v_ins_hu[MBHC_V_IDX_VDDIO] >> 8) & |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 327 | 0xFF); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 328 | /* Threshods for button press */ |
| 329 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, |
| 330 | d->v_b1_hu[MBHC_V_IDX_VDDIO] & 0xFF); |
| 331 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, |
| 332 | (d->v_b1_hu[MBHC_V_IDX_VDDIO] >> 8) & |
| 333 | 0xFF); |
| 334 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B5_CTL, |
| 335 | d->v_b1_h[MBHC_V_IDX_VDDIO] & 0xFF); |
| 336 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B6_CTL, |
| 337 | (d->v_b1_h[MBHC_V_IDX_VDDIO] >> 8) & |
| 338 | 0xFF); |
| 339 | /* Threshods for button release */ |
| 340 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B9_CTL, |
| 341 | d->v_brh[MBHC_V_IDX_VDDIO] & 0xFF); |
| 342 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B10_CTL, |
| 343 | (d->v_brh[MBHC_V_IDX_VDDIO] >> 8) & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 344 | pr_debug("%s: Programmed MBHC thresholds to VDDIO\n", |
| 345 | __func__); |
| 346 | } |
| 347 | |
| 348 | /* Enable MIC BIAS Switch to VDDIO */ |
| 349 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 350 | 0x80, 0x80); |
| 351 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 352 | 0x10, 0x00); |
| 353 | if (!override) |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 354 | wcd9xxx_turn_onoff_override(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 355 | if (restartpolling) |
| 356 | wcd9xxx_start_hs_polling(mbhc); |
| 357 | |
| 358 | mbhc->mbhc_micbias_switched = true; |
| 359 | pr_debug("%s: VDDIO switch enabled\n", __func__); |
| 360 | } else if (!vddio_switch && mbhc->mbhc_micbias_switched) { |
| 361 | if ((!checkpolling || mbhc->polling_active) && |
| 362 | restartpolling) |
| 363 | wcd9xxx_pause_hs_polling(mbhc); |
| 364 | /* Reprogram thresholds */ |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 365 | if (d->micb_mv != VDDIO_MICBIAS_MV) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 366 | cfilt_k_val = |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 367 | __wcd9xxx_resmgr_get_k_val(mbhc, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 368 | d->micb_mv); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 369 | snd_soc_update_bits(codec, |
| 370 | mbhc->mbhc_bias_regs.cfilt_val, |
| 371 | 0xFC, (cfilt_k_val << 2)); |
| 372 | usleep_range(10000, 10000); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 373 | /* Revert threshods for insertion/removal */ |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 374 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B1_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 375 | d->v_ins_hu[MBHC_V_IDX_CFILT] & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 376 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B2_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 377 | (d->v_ins_hu[MBHC_V_IDX_CFILT] >> 8) & |
| 378 | 0xFF); |
| 379 | /* Revert threshods for button press */ |
| 380 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, |
| 381 | d->v_b1_hu[MBHC_V_IDX_CFILT] & 0xFF); |
| 382 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, |
| 383 | (d->v_b1_hu[MBHC_V_IDX_CFILT] >> 8) & |
| 384 | 0xFF); |
| 385 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B5_CTL, |
| 386 | d->v_b1_h[MBHC_V_IDX_CFILT] & 0xFF); |
| 387 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B6_CTL, |
| 388 | (d->v_b1_h[MBHC_V_IDX_CFILT] >> 8) & |
| 389 | 0xFF); |
| 390 | /* Revert threshods for button release */ |
| 391 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B9_CTL, |
| 392 | d->v_brh[MBHC_V_IDX_CFILT] & 0xFF); |
| 393 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B10_CTL, |
| 394 | (d->v_brh[MBHC_V_IDX_CFILT] >> 8) & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 395 | pr_debug("%s: Programmed MBHC thresholds to MICBIAS\n", |
| 396 | __func__); |
| 397 | } |
| 398 | |
| 399 | /* Disable MIC BIAS Switch to VDDIO */ |
| 400 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x80, |
| 401 | 0x00); |
| 402 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x10, |
| 403 | 0x00); |
| 404 | |
| 405 | if ((!checkpolling || mbhc->polling_active) && restartpolling) |
| 406 | wcd9xxx_start_hs_polling(mbhc); |
| 407 | |
| 408 | mbhc->mbhc_micbias_switched = false; |
| 409 | pr_debug("%s: VDDIO switch disabled\n", __func__); |
| 410 | } |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 411 | |
| 412 | return ret; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | static void wcd9xxx_switch_micbias(struct wcd9xxx_mbhc *mbhc, int vddio_switch) |
| 416 | { |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 417 | __wcd9xxx_switch_micbias(mbhc, vddio_switch, true, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 418 | } |
| 419 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 420 | static s16 wcd9xxx_get_current_v(struct wcd9xxx_mbhc *mbhc, |
| 421 | const enum wcd9xxx_current_v_idx idx) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 422 | { |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 423 | enum mbhc_v_index vidx; |
| 424 | s16 ret = -EINVAL; |
| 425 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 426 | if ((mbhc->mbhc_data.micb_mv != VDDIO_MICBIAS_MV) && |
| 427 | mbhc->mbhc_micbias_switched) |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 428 | vidx = MBHC_V_IDX_VDDIO; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 429 | else |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 430 | vidx = MBHC_V_IDX_CFILT; |
| 431 | |
| 432 | switch (idx) { |
| 433 | case WCD9XXX_CURRENT_V_INS_H: |
| 434 | ret = (s16)mbhc->mbhc_data.v_ins_h[vidx]; |
| 435 | break; |
| 436 | case WCD9XXX_CURRENT_V_INS_HU: |
| 437 | ret = (s16)mbhc->mbhc_data.v_ins_hu[vidx]; |
| 438 | break; |
| 439 | case WCD9XXX_CURRENT_V_B1_H: |
| 440 | ret = (s16)mbhc->mbhc_data.v_b1_h[vidx]; |
| 441 | break; |
| 442 | case WCD9XXX_CURRENT_V_B1_HU: |
| 443 | ret = (s16)mbhc->mbhc_data.v_b1_hu[vidx]; |
| 444 | break; |
| 445 | case WCD9XXX_CURRENT_V_BR_H: |
| 446 | ret = (s16)mbhc->mbhc_data.v_brh[vidx]; |
| 447 | break; |
| 448 | } |
| 449 | |
| 450 | return ret; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 451 | } |
| 452 | |
| 453 | void *wcd9xxx_mbhc_cal_btn_det_mp( |
| 454 | const struct wcd9xxx_mbhc_btn_detect_cfg *btn_det, |
| 455 | const enum wcd9xxx_mbhc_btn_det_mem mem) |
| 456 | { |
| 457 | void *ret = &btn_det->_v_btn_low; |
| 458 | |
| 459 | switch (mem) { |
| 460 | case MBHC_BTN_DET_GAIN: |
| 461 | ret += sizeof(btn_det->_n_cic); |
| 462 | case MBHC_BTN_DET_N_CIC: |
| 463 | ret += sizeof(btn_det->_n_ready); |
| 464 | case MBHC_BTN_DET_N_READY: |
| 465 | ret += sizeof(btn_det->_v_btn_high[0]) * btn_det->num_btn; |
| 466 | case MBHC_BTN_DET_V_BTN_HIGH: |
| 467 | ret += sizeof(btn_det->_v_btn_low[0]) * btn_det->num_btn; |
| 468 | case MBHC_BTN_DET_V_BTN_LOW: |
| 469 | /* do nothing */ |
| 470 | break; |
| 471 | default: |
| 472 | ret = NULL; |
| 473 | } |
| 474 | |
| 475 | return ret; |
| 476 | } |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 477 | EXPORT_SYMBOL(wcd9xxx_mbhc_cal_btn_det_mp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 478 | |
| 479 | static void wcd9xxx_calibrate_hs_polling(struct wcd9xxx_mbhc *mbhc) |
| 480 | { |
| 481 | struct snd_soc_codec *codec = mbhc->codec; |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 482 | const s16 v_ins_hu = wcd9xxx_get_current_v(mbhc, |
| 483 | WCD9XXX_CURRENT_V_INS_HU); |
| 484 | const s16 v_b1_hu = wcd9xxx_get_current_v(mbhc, |
| 485 | WCD9XXX_CURRENT_V_B1_HU); |
| 486 | const s16 v_b1_h = wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_H); |
| 487 | const s16 v_brh = wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_BR_H); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 488 | |
| 489 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B1_CTL, v_ins_hu & 0xFF); |
| 490 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B2_CTL, |
| 491 | (v_ins_hu >> 8) & 0xFF); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 492 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, v_b1_hu & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 493 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 494 | (v_b1_hu >> 8) & 0xFF); |
| 495 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B5_CTL, v_b1_h & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 496 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B6_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 497 | (v_b1_h >> 8) & 0xFF); |
| 498 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B9_CTL, v_brh & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 499 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B10_CTL, |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 500 | (v_brh >> 8) & 0xFF); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 501 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B11_CTL, |
| 502 | mbhc->mbhc_data.v_brl & 0xFF); |
| 503 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B12_CTL, |
| 504 | (mbhc->mbhc_data.v_brl >> 8) & 0xFF); |
| 505 | } |
| 506 | |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 507 | static void wcd9xxx_codec_switch_cfilt_mode(struct wcd9xxx_mbhc *mbhc, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 508 | bool fast) |
| 509 | { |
| 510 | struct snd_soc_codec *codec = mbhc->codec; |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 511 | struct wcd9xxx_cfilt_mode cfilt_mode; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 512 | |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 513 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->switch_cfilt_mode) { |
| 514 | cfilt_mode = mbhc->mbhc_cb->switch_cfilt_mode(mbhc, fast); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 515 | } else { |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 516 | if (fast) |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 517 | cfilt_mode.reg_mode_val = WCD9XXX_CFILT_FAST_MODE; |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 518 | else |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 519 | cfilt_mode.reg_mode_val = WCD9XXX_CFILT_SLOW_MODE; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 520 | |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 521 | cfilt_mode.reg_mask = 0x40; |
| 522 | cfilt_mode.cur_mode_val = |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 523 | snd_soc_read(codec, mbhc->mbhc_bias_regs.cfilt_ctl) & 0x40; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 524 | } |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 525 | |
| 526 | if (cfilt_mode.cur_mode_val |
| 527 | != cfilt_mode.reg_mode_val) { |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 528 | if (mbhc->polling_active) |
| 529 | wcd9xxx_pause_hs_polling(mbhc); |
| 530 | snd_soc_update_bits(codec, |
| 531 | mbhc->mbhc_bias_regs.cfilt_ctl, |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 532 | cfilt_mode.reg_mask, |
| 533 | cfilt_mode.reg_mode_val); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 534 | if (mbhc->polling_active) |
| 535 | wcd9xxx_start_hs_polling(mbhc); |
| 536 | pr_debug("%s: CFILT mode change (%x to %x)\n", __func__, |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 537 | cfilt_mode.cur_mode_val, |
| 538 | cfilt_mode.reg_mode_val); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 539 | } else { |
| 540 | pr_debug("%s: CFILT Value is already %x\n", |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 541 | __func__, cfilt_mode.cur_mode_val); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 542 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 543 | } |
| 544 | |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 545 | static void wcd9xxx_jack_report(struct wcd9xxx_mbhc *mbhc, |
| 546 | struct snd_soc_jack *jack, int status, int mask) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 547 | { |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 548 | if (jack == &mbhc->headset_jack) { |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 549 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 550 | WCD9XXX_COND_HPH_MIC, |
| 551 | status & SND_JACK_MICROPHONE); |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 552 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 553 | WCD9XXX_COND_HPH, |
| 554 | status & SND_JACK_HEADPHONE); |
| 555 | } |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 556 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 557 | snd_soc_jack_report_no_dapm(jack, status, mask); |
| 558 | } |
| 559 | |
| 560 | static void __hphocp_off_report(struct wcd9xxx_mbhc *mbhc, u32 jack_status, |
| 561 | int irq) |
| 562 | { |
| 563 | struct snd_soc_codec *codec; |
| 564 | |
| 565 | pr_debug("%s: clear ocp status %x\n", __func__, jack_status); |
| 566 | codec = mbhc->codec; |
| 567 | if (mbhc->hph_status & jack_status) { |
| 568 | mbhc->hph_status &= ~jack_status; |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 569 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 570 | mbhc->hph_status, WCD9XXX_JACK_MASK); |
| 571 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, 0x10, |
| 572 | 0x00); |
| 573 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, 0x10, |
| 574 | 0x10); |
| 575 | /* |
| 576 | * reset retry counter as PA is turned off signifying |
| 577 | * start of new OCP detection session |
| 578 | */ |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 579 | if (mbhc->intr_ids->hph_left_ocp) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 580 | mbhc->hphlocp_cnt = 0; |
| 581 | else |
| 582 | mbhc->hphrocp_cnt = 0; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 583 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, irq); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 584 | } |
| 585 | } |
| 586 | |
| 587 | static void hphrocp_off_report(struct wcd9xxx_mbhc *mbhc, u32 jack_status) |
| 588 | { |
| 589 | __hphocp_off_report(mbhc, SND_JACK_OC_HPHR, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 590 | mbhc->intr_ids->hph_right_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 591 | } |
| 592 | |
| 593 | static void hphlocp_off_report(struct wcd9xxx_mbhc *mbhc, u32 jack_status) |
| 594 | { |
| 595 | __hphocp_off_report(mbhc, SND_JACK_OC_HPHL, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 596 | mbhc->intr_ids->hph_left_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | static void wcd9xxx_get_mbhc_micbias_regs(struct wcd9xxx_mbhc *mbhc, |
| 600 | struct mbhc_micbias_regs *micbias_regs) |
| 601 | { |
| 602 | unsigned int cfilt; |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 603 | struct wcd9xxx_micbias_setting *micbias_pdata = |
| 604 | mbhc->resmgr->micbias_pdata; |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 605 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 606 | switch (mbhc->mbhc_cfg->micbias) { |
| 607 | case MBHC_MICBIAS1: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 608 | cfilt = micbias_pdata->bias1_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 609 | micbias_regs->mbhc_reg = WCD9XXX_A_MICB_1_MBHC; |
| 610 | micbias_regs->int_rbias = WCD9XXX_A_MICB_1_INT_RBIAS; |
| 611 | micbias_regs->ctl_reg = WCD9XXX_A_MICB_1_CTL; |
| 612 | break; |
| 613 | case MBHC_MICBIAS2: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 614 | cfilt = micbias_pdata->bias2_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 615 | micbias_regs->mbhc_reg = WCD9XXX_A_MICB_2_MBHC; |
| 616 | micbias_regs->int_rbias = WCD9XXX_A_MICB_2_INT_RBIAS; |
| 617 | micbias_regs->ctl_reg = WCD9XXX_A_MICB_2_CTL; |
| 618 | break; |
| 619 | case MBHC_MICBIAS3: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 620 | cfilt = micbias_pdata->bias3_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 621 | micbias_regs->mbhc_reg = WCD9XXX_A_MICB_3_MBHC; |
| 622 | micbias_regs->int_rbias = WCD9XXX_A_MICB_3_INT_RBIAS; |
| 623 | micbias_regs->ctl_reg = WCD9XXX_A_MICB_3_CTL; |
| 624 | break; |
| 625 | case MBHC_MICBIAS4: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 626 | cfilt = micbias_pdata->bias4_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 627 | micbias_regs->mbhc_reg = mbhc->resmgr->reg_addr->micb_4_mbhc; |
| 628 | micbias_regs->int_rbias = |
| 629 | mbhc->resmgr->reg_addr->micb_4_int_rbias; |
| 630 | micbias_regs->ctl_reg = mbhc->resmgr->reg_addr->micb_4_ctl; |
| 631 | break; |
| 632 | default: |
| 633 | /* Should never reach here */ |
| 634 | pr_err("%s: Invalid MIC BIAS for MBHC\n", __func__); |
| 635 | return; |
| 636 | } |
| 637 | |
| 638 | micbias_regs->cfilt_sel = cfilt; |
| 639 | |
| 640 | switch (cfilt) { |
| 641 | case WCD9XXX_CFILT1_SEL: |
| 642 | micbias_regs->cfilt_val = WCD9XXX_A_MICB_CFILT_1_VAL; |
| 643 | micbias_regs->cfilt_ctl = WCD9XXX_A_MICB_CFILT_1_CTL; |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 644 | mbhc->mbhc_data.micb_mv = micbias_pdata->cfilt1_mv; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 645 | break; |
| 646 | case WCD9XXX_CFILT2_SEL: |
| 647 | micbias_regs->cfilt_val = WCD9XXX_A_MICB_CFILT_2_VAL; |
| 648 | micbias_regs->cfilt_ctl = WCD9XXX_A_MICB_CFILT_2_CTL; |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 649 | mbhc->mbhc_data.micb_mv = micbias_pdata->cfilt2_mv; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 650 | break; |
| 651 | case WCD9XXX_CFILT3_SEL: |
| 652 | micbias_regs->cfilt_val = WCD9XXX_A_MICB_CFILT_3_VAL; |
| 653 | micbias_regs->cfilt_ctl = WCD9XXX_A_MICB_CFILT_3_CTL; |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 654 | mbhc->mbhc_data.micb_mv = micbias_pdata->cfilt3_mv; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 655 | break; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | static void wcd9xxx_clr_and_turnon_hph_padac(struct wcd9xxx_mbhc *mbhc) |
| 660 | { |
| 661 | bool pa_turned_on = false; |
| 662 | struct snd_soc_codec *codec = mbhc->codec; |
| 663 | u8 wg_time; |
| 664 | |
| 665 | wg_time = snd_soc_read(codec, WCD9XXX_A_RX_HPH_CNP_WG_TIME) ; |
| 666 | wg_time += 1; |
| 667 | |
| 668 | if (test_and_clear_bit(WCD9XXX_HPHR_DAC_OFF_ACK, |
| 669 | &mbhc->hph_pa_dac_state)) { |
| 670 | pr_debug("%s: HPHR clear flag and enable DAC\n", __func__); |
| 671 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_R_DAC_CTL, |
| 672 | 0xC0, 0xC0); |
| 673 | } |
| 674 | if (test_and_clear_bit(WCD9XXX_HPHL_DAC_OFF_ACK, |
| 675 | &mbhc->hph_pa_dac_state)) { |
| 676 | pr_debug("%s: HPHL clear flag and enable DAC\n", __func__); |
| 677 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_L_DAC_CTL, |
Banajit Goswami | 94abca9 | 2013-05-30 18:15:19 -0700 | [diff] [blame] | 678 | 0x80, 0x80); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | if (test_and_clear_bit(WCD9XXX_HPHR_PA_OFF_ACK, |
| 682 | &mbhc->hph_pa_dac_state)) { |
| 683 | pr_debug("%s: HPHR clear flag and enable PA\n", __func__); |
| 684 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_CNP_EN, 0x10, |
| 685 | 1 << 4); |
| 686 | pa_turned_on = true; |
| 687 | } |
| 688 | if (test_and_clear_bit(WCD9XXX_HPHL_PA_OFF_ACK, |
| 689 | &mbhc->hph_pa_dac_state)) { |
| 690 | pr_debug("%s: HPHL clear flag and enable PA\n", __func__); |
| 691 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_CNP_EN, 0x20, 1 |
| 692 | << 5); |
| 693 | pa_turned_on = true; |
| 694 | } |
| 695 | |
| 696 | if (pa_turned_on) { |
| 697 | pr_debug("%s: PA was turned off by MBHC and not by DAPM\n", |
| 698 | __func__); |
| 699 | usleep_range(wg_time * 1000, wg_time * 1000); |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | static int wcd9xxx_cancel_btn_work(struct wcd9xxx_mbhc *mbhc) |
| 704 | { |
| 705 | int r; |
| 706 | r = cancel_delayed_work_sync(&mbhc->mbhc_btn_dwork); |
| 707 | if (r) |
| 708 | /* if scheduled mbhc.mbhc_btn_dwork is canceled from here, |
| 709 | * we have to unlock from here instead btn_work */ |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 710 | wcd9xxx_unlock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 711 | return r; |
| 712 | } |
| 713 | |
| 714 | static bool wcd9xxx_is_hph_dac_on(struct snd_soc_codec *codec, int left) |
| 715 | { |
| 716 | u8 hph_reg_val = 0; |
| 717 | if (left) |
| 718 | hph_reg_val = snd_soc_read(codec, WCD9XXX_A_RX_HPH_L_DAC_CTL); |
| 719 | else |
| 720 | hph_reg_val = snd_soc_read(codec, WCD9XXX_A_RX_HPH_R_DAC_CTL); |
| 721 | |
| 722 | return (hph_reg_val & 0xC0) ? true : false; |
| 723 | } |
| 724 | |
| 725 | static bool wcd9xxx_is_hph_pa_on(struct snd_soc_codec *codec) |
| 726 | { |
| 727 | u8 hph_reg_val = 0; |
| 728 | hph_reg_val = snd_soc_read(codec, WCD9XXX_A_RX_HPH_CNP_EN); |
| 729 | |
| 730 | return (hph_reg_val & 0x30) ? true : false; |
| 731 | } |
| 732 | |
| 733 | /* called under codec_resource_lock acquisition */ |
| 734 | static void wcd9xxx_set_and_turnoff_hph_padac(struct wcd9xxx_mbhc *mbhc) |
| 735 | { |
| 736 | u8 wg_time; |
| 737 | struct snd_soc_codec *codec = mbhc->codec; |
| 738 | |
| 739 | wg_time = snd_soc_read(codec, WCD9XXX_A_RX_HPH_CNP_WG_TIME); |
| 740 | wg_time += 1; |
| 741 | |
| 742 | /* If headphone PA is on, check if userspace receives |
| 743 | * removal event to sync-up PA's state */ |
| 744 | if (wcd9xxx_is_hph_pa_on(codec)) { |
| 745 | pr_debug("%s PA is on, setting PA_OFF_ACK\n", __func__); |
| 746 | set_bit(WCD9XXX_HPHL_PA_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 747 | set_bit(WCD9XXX_HPHR_PA_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 748 | } else { |
| 749 | pr_debug("%s PA is off\n", __func__); |
| 750 | } |
| 751 | |
| 752 | if (wcd9xxx_is_hph_dac_on(codec, 1)) |
| 753 | set_bit(WCD9XXX_HPHL_DAC_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 754 | if (wcd9xxx_is_hph_dac_on(codec, 0)) |
| 755 | set_bit(WCD9XXX_HPHR_DAC_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 756 | |
| 757 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_CNP_EN, 0x30, 0x00); |
Joonwoo Park | 67c0dbf | 2013-01-25 10:47:38 -0800 | [diff] [blame] | 758 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_L_DAC_CTL, 0x80, 0x00); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 759 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_R_DAC_CTL, 0xC0, 0x00); |
| 760 | usleep_range(wg_time * 1000, wg_time * 1000); |
| 761 | } |
| 762 | |
| 763 | static void wcd9xxx_insert_detect_setup(struct wcd9xxx_mbhc *mbhc, bool ins) |
| 764 | { |
| 765 | if (!mbhc->mbhc_cfg->insert_detect) |
| 766 | return; |
| 767 | pr_debug("%s: Setting up %s detection\n", __func__, |
| 768 | ins ? "insert" : "removal"); |
Joonwoo Park | 2e6bd1e | 2012-10-18 13:48:55 -0700 | [diff] [blame] | 769 | /* Disable detection to avoid glitch */ |
| 770 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MBHC_INSERT_DETECT, 1, 0); |
Simmi Pateriya | 2397f5c | 2013-03-25 12:21:55 +0530 | [diff] [blame] | 771 | if (mbhc->mbhc_cfg->gpio_level_insert) |
| 772 | snd_soc_write(mbhc->codec, WCD9XXX_A_MBHC_INSERT_DETECT, |
| 773 | (0x68 | (ins ? (1 << 1) : 0))); |
| 774 | else |
| 775 | snd_soc_write(mbhc->codec, WCD9XXX_A_MBHC_INSERT_DETECT, |
| 776 | (0x6C | (ins ? (1 << 1) : 0))); |
Joonwoo Park | 2e6bd1e | 2012-10-18 13:48:55 -0700 | [diff] [blame] | 777 | /* Re-enable detection */ |
| 778 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MBHC_INSERT_DETECT, 1, 1); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | /* called under codec_resource_lock acquisition */ |
| 782 | static void wcd9xxx_report_plug(struct wcd9xxx_mbhc *mbhc, int insertion, |
| 783 | enum snd_jack_types jack_type) |
| 784 | { |
| 785 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 786 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 787 | pr_debug("%s: enter insertion %d hph_status %x\n", |
| 788 | __func__, insertion, mbhc->hph_status); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 789 | if (!insertion) { |
| 790 | /* Report removal */ |
| 791 | mbhc->hph_status &= ~jack_type; |
| 792 | /* |
| 793 | * cancel possibly scheduled btn work and |
| 794 | * report release if we reported button press |
| 795 | */ |
| 796 | if (wcd9xxx_cancel_btn_work(mbhc)) |
| 797 | pr_debug("%s: button press is canceled\n", __func__); |
| 798 | else if (mbhc->buttons_pressed) { |
| 799 | pr_debug("%s: release of button press%d\n", |
| 800 | __func__, jack_type); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 801 | wcd9xxx_jack_report(mbhc, &mbhc->button_jack, 0, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 802 | mbhc->buttons_pressed); |
| 803 | mbhc->buttons_pressed &= |
| 804 | ~WCD9XXX_JACK_BUTTON_MASK; |
| 805 | } |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 806 | |
| 807 | if (mbhc->micbias_enable && mbhc->micbias_enable_cb) { |
| 808 | pr_debug("%s: Disabling micbias\n", __func__); |
| 809 | mbhc->micbias_enable_cb(mbhc->codec, false); |
| 810 | mbhc->micbias_enable = false; |
| 811 | } |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 812 | mbhc->zl = mbhc->zr = 0; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 813 | pr_debug("%s: Reporting removal %d(%x)\n", __func__, |
| 814 | jack_type, mbhc->hph_status); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 815 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, mbhc->hph_status, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 816 | WCD9XXX_JACK_MASK); |
| 817 | wcd9xxx_set_and_turnoff_hph_padac(mbhc); |
| 818 | hphrocp_off_report(mbhc, SND_JACK_OC_HPHR); |
| 819 | hphlocp_off_report(mbhc, SND_JACK_OC_HPHL); |
| 820 | mbhc->current_plug = PLUG_TYPE_NONE; |
| 821 | mbhc->polling_active = false; |
| 822 | } else { |
Phani Kumar Uppalapati | f3d0524 | 2013-10-23 19:36:25 -0700 | [diff] [blame] | 823 | /* |
| 824 | * Report removal of current jack type. |
| 825 | * Headphone to headset shouldn't report headphone |
| 826 | * removal. |
| 827 | */ |
| 828 | if (mbhc->mbhc_cfg->detect_extn_cable && |
| 829 | !(mbhc->current_plug == PLUG_TYPE_HEADPHONE && |
| 830 | jack_type == SND_JACK_HEADSET) && |
| 831 | (mbhc->hph_status && mbhc->hph_status != jack_type)) { |
| 832 | if (mbhc->micbias_enable && mbhc->micbias_enable_cb && |
| 833 | mbhc->hph_status == SND_JACK_HEADSET) { |
| 834 | pr_debug("%s: Disabling micbias\n", __func__); |
| 835 | mbhc->micbias_enable_cb(mbhc->codec, false); |
| 836 | mbhc->micbias_enable = false; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 837 | } |
Phani Kumar Uppalapati | f3d0524 | 2013-10-23 19:36:25 -0700 | [diff] [blame] | 838 | |
| 839 | pr_debug("%s: Reporting removal (%x)\n", |
| 840 | __func__, mbhc->hph_status); |
| 841 | mbhc->zl = mbhc->zr = 0; |
| 842 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, |
| 843 | 0, WCD9XXX_JACK_MASK); |
| 844 | mbhc->hph_status = 0; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 845 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 846 | /* Report insertion */ |
| 847 | mbhc->hph_status |= jack_type; |
| 848 | |
| 849 | if (jack_type == SND_JACK_HEADPHONE) { |
| 850 | mbhc->current_plug = PLUG_TYPE_HEADPHONE; |
| 851 | } else if (jack_type == SND_JACK_UNSUPPORTED) { |
| 852 | mbhc->current_plug = PLUG_TYPE_GND_MIC_SWAP; |
| 853 | } else if (jack_type == SND_JACK_HEADSET) { |
| 854 | mbhc->polling_active = BUTTON_POLLING_SUPPORTED; |
| 855 | mbhc->current_plug = PLUG_TYPE_HEADSET; |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 856 | mbhc->update_z = true; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 857 | } else if (jack_type == SND_JACK_LINEOUT) { |
| 858 | mbhc->current_plug = PLUG_TYPE_HIGH_HPH; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 859 | } |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 860 | |
| 861 | if (mbhc->micbias_enable && mbhc->micbias_enable_cb) { |
| 862 | pr_debug("%s: Enabling micbias\n", __func__); |
| 863 | mbhc->micbias_enable_cb(mbhc->codec, true); |
| 864 | } |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 865 | |
Phani Kumar Uppalapati | 381fbc8 | 2013-09-19 17:11:31 -0700 | [diff] [blame] | 866 | if (mbhc->impedance_detect && impedance_detect_en) |
Phani Kumar Uppalapati | d7549e1 | 2013-07-12 22:22:03 -0700 | [diff] [blame] | 867 | wcd9xxx_detect_impedance(mbhc, &mbhc->zl, &mbhc->zr); |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 868 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 869 | pr_debug("%s: Reporting insertion %d(%x)\n", __func__, |
| 870 | jack_type, mbhc->hph_status); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 871 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 872 | mbhc->hph_status, WCD9XXX_JACK_MASK); |
| 873 | wcd9xxx_clr_and_turnon_hph_padac(mbhc); |
| 874 | } |
| 875 | /* Setup insert detect */ |
| 876 | wcd9xxx_insert_detect_setup(mbhc, !insertion); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 877 | |
| 878 | pr_debug("%s: leave hph_status %x\n", __func__, mbhc->hph_status); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 879 | } |
| 880 | |
| 881 | /* should be called under interrupt context that hold suspend */ |
| 882 | static void wcd9xxx_schedule_hs_detect_plug(struct wcd9xxx_mbhc *mbhc, |
| 883 | struct work_struct *work) |
| 884 | { |
| 885 | pr_debug("%s: scheduling wcd9xxx_correct_swch_plug\n", __func__); |
| 886 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 887 | mbhc->hs_detect_work_stop = false; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 888 | wcd9xxx_lock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 889 | schedule_work(work); |
| 890 | } |
| 891 | |
| 892 | /* called under codec_resource_lock acquisition */ |
| 893 | static void wcd9xxx_cancel_hs_detect_plug(struct wcd9xxx_mbhc *mbhc, |
| 894 | struct work_struct *work) |
| 895 | { |
| 896 | pr_debug("%s: Canceling correct_plug_swch\n", __func__); |
| 897 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 898 | mbhc->hs_detect_work_stop = true; |
| 899 | wmb(); |
| 900 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 901 | if (cancel_work_sync(work)) { |
| 902 | pr_debug("%s: correct_plug_swch is canceled\n", |
| 903 | __func__); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 904 | wcd9xxx_unlock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 905 | } |
| 906 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
| 907 | } |
| 908 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 909 | static s16 scale_v_micb_vddio(struct wcd9xxx_mbhc *mbhc, int v, bool tovddio) |
| 910 | { |
| 911 | int r; |
| 912 | int vddio_k, mb_k; |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 913 | vddio_k = __wcd9xxx_resmgr_get_k_val(mbhc, VDDIO_MICBIAS_MV); |
| 914 | mb_k = __wcd9xxx_resmgr_get_k_val(mbhc, mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 915 | if (tovddio) |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 916 | r = v * (vddio_k + 4) / (mb_k + 4); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 917 | else |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 918 | r = v * (mb_k + 4) / (vddio_k + 4); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 919 | return r; |
| 920 | } |
| 921 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 922 | static s16 wcd9xxx_get_current_v_hs_max(struct wcd9xxx_mbhc *mbhc) |
| 923 | { |
| 924 | s16 v_hs_max; |
| 925 | struct wcd9xxx_mbhc_plug_type_cfg *plug_type; |
| 926 | |
| 927 | plug_type = WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
| 928 | if ((mbhc->mbhc_data.micb_mv != VDDIO_MICBIAS_MV) && |
| 929 | mbhc->mbhc_micbias_switched) |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 930 | v_hs_max = scale_v_micb_vddio(mbhc, plug_type->v_hs_max, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 931 | else |
| 932 | v_hs_max = plug_type->v_hs_max; |
| 933 | return v_hs_max; |
| 934 | } |
| 935 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 936 | static short wcd9xxx_read_sta_result(struct snd_soc_codec *codec) |
| 937 | { |
| 938 | u8 bias_msb, bias_lsb; |
| 939 | short bias_value; |
| 940 | |
| 941 | bias_msb = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B3_STATUS); |
| 942 | bias_lsb = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B2_STATUS); |
| 943 | bias_value = (bias_msb << 8) | bias_lsb; |
| 944 | return bias_value; |
| 945 | } |
| 946 | |
| 947 | static short wcd9xxx_read_dce_result(struct snd_soc_codec *codec) |
| 948 | { |
| 949 | u8 bias_msb, bias_lsb; |
| 950 | short bias_value; |
| 951 | |
| 952 | bias_msb = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B5_STATUS); |
| 953 | bias_lsb = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B4_STATUS); |
| 954 | bias_value = (bias_msb << 8) | bias_lsb; |
| 955 | return bias_value; |
| 956 | } |
| 957 | |
| 958 | static void wcd9xxx_turn_onoff_rel_detection(struct snd_soc_codec *codec, |
| 959 | bool on) |
| 960 | { |
| 961 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x02, on << 1); |
| 962 | } |
| 963 | |
| 964 | static short __wcd9xxx_codec_sta_dce(struct wcd9xxx_mbhc *mbhc, int dce, |
| 965 | bool override_bypass, bool noreldetection) |
| 966 | { |
| 967 | short bias_value; |
| 968 | struct snd_soc_codec *codec = mbhc->codec; |
| 969 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 970 | wcd9xxx_disable_irq(mbhc->resmgr->core_res, |
| 971 | mbhc->intr_ids->dce_est_complete); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 972 | if (noreldetection) |
| 973 | wcd9xxx_turn_onoff_rel_detection(codec, false); |
| 974 | |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 975 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x2, 0x0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 976 | /* Turn on the override */ |
| 977 | if (!override_bypass) |
| 978 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x4, 0x4); |
| 979 | if (dce) { |
| 980 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, |
| 981 | 0x8); |
| 982 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x4); |
| 983 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, |
| 984 | 0x0); |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 985 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x2, |
| 986 | 0x2); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 987 | usleep_range(mbhc->mbhc_data.t_sta_dce, |
| 988 | mbhc->mbhc_data.t_sta_dce); |
| 989 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x4); |
| 990 | usleep_range(mbhc->mbhc_data.t_dce, mbhc->mbhc_data.t_dce); |
| 991 | bias_value = wcd9xxx_read_dce_result(codec); |
| 992 | } else { |
| 993 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, |
| 994 | 0x8); |
| 995 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x2); |
| 996 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, |
| 997 | 0x0); |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 998 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x2, |
| 999 | 0x2); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1000 | usleep_range(mbhc->mbhc_data.t_sta_dce, |
| 1001 | mbhc->mbhc_data.t_sta_dce); |
| 1002 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x2); |
| 1003 | usleep_range(mbhc->mbhc_data.t_sta, |
| 1004 | mbhc->mbhc_data.t_sta); |
| 1005 | bias_value = wcd9xxx_read_sta_result(codec); |
| 1006 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, |
| 1007 | 0x8); |
| 1008 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x0); |
| 1009 | } |
| 1010 | /* Turn off the override after measuring mic voltage */ |
| 1011 | if (!override_bypass) |
| 1012 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x04, |
| 1013 | 0x00); |
| 1014 | |
| 1015 | if (noreldetection) |
| 1016 | wcd9xxx_turn_onoff_rel_detection(codec, true); |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 1017 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, |
| 1018 | mbhc->intr_ids->dce_est_complete); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1019 | |
| 1020 | return bias_value; |
| 1021 | } |
| 1022 | |
| 1023 | static short wcd9xxx_codec_sta_dce(struct wcd9xxx_mbhc *mbhc, int dce, |
| 1024 | bool norel) |
| 1025 | { |
| 1026 | return __wcd9xxx_codec_sta_dce(mbhc, dce, false, norel); |
| 1027 | } |
| 1028 | |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 1029 | static s32 __wcd9xxx_codec_sta_dce_v(struct wcd9xxx_mbhc *mbhc, s8 dce, |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1030 | u16 bias_value, s16 z, u32 micb_mv) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1031 | { |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 1032 | s16 value, mb; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1033 | s32 mv; |
| 1034 | |
| 1035 | value = bias_value; |
| 1036 | if (dce) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1037 | mb = (mbhc->mbhc_data.dce_mb); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1038 | mv = (value - z) * (s32)micb_mv / (mb - z); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1039 | } else { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1040 | mb = (mbhc->mbhc_data.sta_mb); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1041 | mv = (value - z) * (s32)micb_mv / (mb - z); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1042 | } |
| 1043 | |
| 1044 | return mv; |
| 1045 | } |
| 1046 | |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 1047 | static s32 wcd9xxx_codec_sta_dce_v(struct wcd9xxx_mbhc *mbhc, s8 dce, |
| 1048 | u16 bias_value) |
| 1049 | { |
| 1050 | s16 z; |
| 1051 | z = dce ? (s16)mbhc->mbhc_data.dce_z : (s16)mbhc->mbhc_data.sta_z; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1052 | return __wcd9xxx_codec_sta_dce_v(mbhc, dce, bias_value, z, |
| 1053 | mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 1054 | } |
| 1055 | |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 1056 | /* To enable/disable bandgap and RC oscillator */ |
| 1057 | static void wcd9xxx_mbhc_ctrl_clk_bandgap(struct wcd9xxx_mbhc *mbhc, |
| 1058 | bool enable) |
| 1059 | { |
| 1060 | if (enable) { |
| 1061 | WCD9XXX_BG_CLK_LOCK(mbhc->resmgr); |
| 1062 | wcd9xxx_resmgr_get_bandgap(mbhc->resmgr, |
| 1063 | WCD9XXX_BANDGAP_AUDIO_MODE); |
| 1064 | wcd9xxx_resmgr_get_clk_block(mbhc->resmgr, |
| 1065 | WCD9XXX_CLK_RCO); |
| 1066 | WCD9XXX_BG_CLK_UNLOCK(mbhc->resmgr); |
| 1067 | } else { |
| 1068 | WCD9XXX_BG_CLK_LOCK(mbhc->resmgr); |
| 1069 | wcd9xxx_resmgr_put_clk_block(mbhc->resmgr, |
| 1070 | WCD9XXX_CLK_RCO); |
| 1071 | wcd9xxx_resmgr_put_bandgap(mbhc->resmgr, |
| 1072 | WCD9XXX_BANDGAP_AUDIO_MODE); |
| 1073 | WCD9XXX_BG_CLK_UNLOCK(mbhc->resmgr); |
| 1074 | } |
| 1075 | } |
| 1076 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1077 | /* called only from interrupt which is under codec_resource_lock acquisition */ |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1078 | static short wcd9xxx_mbhc_setup_hs_polling(struct wcd9xxx_mbhc *mbhc, |
| 1079 | bool is_cs_enable) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1080 | { |
| 1081 | struct snd_soc_codec *codec = mbhc->codec; |
| 1082 | short bias_value; |
| 1083 | u8 cfilt_mode; |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 1084 | s16 reg; |
| 1085 | int change; |
| 1086 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 1087 | s16 sta_z = 0, dce_z = 0; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1088 | |
| 1089 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1090 | |
| 1091 | pr_debug("%s: enter\n", __func__); |
| 1092 | if (!mbhc->mbhc_cfg->calibration) { |
| 1093 | pr_err("%s: Error, no calibration exists\n", __func__); |
| 1094 | return -ENODEV; |
| 1095 | } |
| 1096 | |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 1097 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 1098 | /* Enable external voltage source to micbias if present */ |
| 1099 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source) |
| 1100 | mbhc->mbhc_cb->enable_mb_source(codec, true); |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 1101 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1102 | /* |
Simmi Pateriya | 2727a4e | 2013-09-27 12:57:32 +0530 | [diff] [blame] | 1103 | * setup internal micbias if codec uses internal micbias for |
| 1104 | * headset detection |
| 1105 | */ |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 1106 | if (mbhc->mbhc_cfg->use_int_rbias && !mbhc->int_rbias_on) { |
Simmi Pateriya | 2727a4e | 2013-09-27 12:57:32 +0530 | [diff] [blame] | 1107 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->setup_int_rbias) |
| 1108 | mbhc->mbhc_cb->setup_int_rbias(codec, true); |
| 1109 | else |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 1110 | pr_err("%s: internal bias requested but codec did not provide callback\n", |
| 1111 | __func__); |
Simmi Pateriya | 2727a4e | 2013-09-27 12:57:32 +0530 | [diff] [blame] | 1112 | } |
| 1113 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1114 | snd_soc_update_bits(codec, WCD9XXX_A_CLK_BUFF_EN1, 0x05, 0x01); |
| 1115 | |
| 1116 | /* Make sure CFILT is in fast mode, save current mode */ |
| 1117 | cfilt_mode = snd_soc_read(codec, mbhc->mbhc_bias_regs.cfilt_ctl); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 1118 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->cfilt_fast_mode) |
| 1119 | mbhc->mbhc_cb->cfilt_fast_mode(codec, mbhc); |
| 1120 | else |
| 1121 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.cfilt_ctl, |
| 1122 | 0x70, 0x00); |
| 1123 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1124 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x2, 0x2); |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 1125 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x04); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 1126 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 1127 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 1128 | else |
| 1129 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 1130 | 0x80, 0x80); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1131 | |
| 1132 | snd_soc_update_bits(codec, WCD9XXX_A_TX_7_MBHC_EN, 0x80, 0x80); |
| 1133 | snd_soc_update_bits(codec, WCD9XXX_A_TX_7_MBHC_EN, 0x1F, 0x1C); |
| 1134 | snd_soc_update_bits(codec, WCD9XXX_A_TX_7_MBHC_TEST_CTL, 0x40, 0x40); |
| 1135 | |
| 1136 | snd_soc_update_bits(codec, WCD9XXX_A_TX_7_MBHC_EN, 0x80, 0x00); |
| 1137 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, 0x8); |
| 1138 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, 0x00); |
| 1139 | |
| 1140 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x2, 0x2); |
| 1141 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x8, 0x8); |
| 1142 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1143 | /* don't flip override */ |
| 1144 | bias_value = __wcd9xxx_codec_sta_dce(mbhc, 1, true, true); |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 1145 | snd_soc_write(codec, mbhc->mbhc_bias_regs.cfilt_ctl, cfilt_mode); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1146 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x13, 0x00); |
| 1147 | |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 1148 | /* recalibrate dce_z and sta_z */ |
| 1149 | reg = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_CTL); |
| 1150 | change = snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x78, |
| 1151 | btn_det->mbhc_nsc << 3); |
| 1152 | wcd9xxx_get_z(mbhc, &dce_z, &sta_z); |
| 1153 | if (change) |
| 1154 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, reg); |
| 1155 | if (dce_z && sta_z) { |
| 1156 | pr_debug("%s: sta_z 0x%x -> 0x%x, dce_z 0x%x -> 0x%x\n", |
| 1157 | __func__, |
| 1158 | mbhc->mbhc_data.sta_z, sta_z & 0xffff, |
| 1159 | mbhc->mbhc_data.dce_z, dce_z & 0xffff); |
| 1160 | mbhc->mbhc_data.dce_z = dce_z; |
| 1161 | mbhc->mbhc_data.sta_z = sta_z; |
| 1162 | wcd9xxx_mbhc_calc_thres(mbhc); |
| 1163 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 1164 | } else { |
| 1165 | pr_warn("%s: failed get new dce_z/sta_z 0x%x/0x%x\n", __func__, |
| 1166 | dce_z, sta_z); |
| 1167 | } |
| 1168 | |
| 1169 | if (is_cs_enable) { |
| 1170 | /* recalibrate dce_nsc_cs_z */ |
| 1171 | reg = snd_soc_read(mbhc->codec, WCD9XXX_A_CDC_MBHC_B1_CTL); |
| 1172 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 1173 | 0x78, WCD9XXX_MBHC_NSC_CS << 3); |
| 1174 | wcd9xxx_get_z(mbhc, &dce_z, NULL); |
| 1175 | snd_soc_write(mbhc->codec, WCD9XXX_A_CDC_MBHC_B1_CTL, reg); |
| 1176 | if (dce_z) { |
| 1177 | pr_debug("%s: dce_nsc_cs_z 0x%x -> 0x%x\n", __func__, |
| 1178 | mbhc->mbhc_data.dce_nsc_cs_z, dce_z & 0xffff); |
| 1179 | mbhc->mbhc_data.dce_nsc_cs_z = dce_z; |
| 1180 | } else { |
| 1181 | pr_debug("%s: failed get new dce_nsc_cs_z\n", __func__); |
| 1182 | } |
| 1183 | } |
| 1184 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1185 | return bias_value; |
| 1186 | } |
| 1187 | |
| 1188 | static void wcd9xxx_shutdown_hs_removal_detect(struct wcd9xxx_mbhc *mbhc) |
| 1189 | { |
| 1190 | struct snd_soc_codec *codec = mbhc->codec; |
| 1191 | const struct wcd9xxx_mbhc_general_cfg *generic = |
| 1192 | WCD9XXX_MBHC_CAL_GENERAL_PTR(mbhc->mbhc_cfg->calibration); |
| 1193 | |
| 1194 | /* Need MBHC clock */ |
Joonwoo Park | 533b368 | 2013-06-13 11:41:21 -0700 | [diff] [blame] | 1195 | WCD9XXX_BG_CLK_LOCK(mbhc->resmgr); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1196 | wcd9xxx_resmgr_get_clk_block(mbhc->resmgr, WCD9XXX_CLK_RCO); |
Joonwoo Park | 533b368 | 2013-06-13 11:41:21 -0700 | [diff] [blame] | 1197 | WCD9XXX_BG_CLK_UNLOCK(mbhc->resmgr); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1198 | |
| 1199 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x2, 0x2); |
| 1200 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x6, 0x0); |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 1201 | __wcd9xxx_switch_micbias(mbhc, 0, false, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1202 | |
| 1203 | usleep_range(generic->t_shutdown_plug_rem, |
| 1204 | generic->t_shutdown_plug_rem); |
| 1205 | |
| 1206 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0xA, 0x8); |
| 1207 | |
Joonwoo Park | 533b368 | 2013-06-13 11:41:21 -0700 | [diff] [blame] | 1208 | WCD9XXX_BG_CLK_LOCK(mbhc->resmgr); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1209 | /* Put requested CLK back */ |
| 1210 | wcd9xxx_resmgr_put_clk_block(mbhc->resmgr, WCD9XXX_CLK_RCO); |
Joonwoo Park | 533b368 | 2013-06-13 11:41:21 -0700 | [diff] [blame] | 1211 | WCD9XXX_BG_CLK_UNLOCK(mbhc->resmgr); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1212 | |
| 1213 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x00); |
| 1214 | } |
| 1215 | |
| 1216 | static void wcd9xxx_cleanup_hs_polling(struct wcd9xxx_mbhc *mbhc) |
| 1217 | { |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 1218 | |
| 1219 | pr_debug("%s: enter\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1220 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1221 | |
| 1222 | wcd9xxx_shutdown_hs_removal_detect(mbhc); |
| 1223 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1224 | |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 1225 | /* Disable external voltage source to micbias if present */ |
| 1226 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source) |
| 1227 | mbhc->mbhc_cb->enable_mb_source(mbhc->codec, false); |
| 1228 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1229 | mbhc->polling_active = false; |
| 1230 | mbhc->mbhc_state = MBHC_STATE_NONE; |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 1231 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1232 | } |
| 1233 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1234 | /* called under codec_resource_lock acquisition */ |
| 1235 | static void wcd9xxx_codec_hphr_gnd_switch(struct snd_soc_codec *codec, bool on) |
| 1236 | { |
| 1237 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x01, on); |
| 1238 | if (on) |
| 1239 | usleep_range(5000, 5000); |
| 1240 | } |
| 1241 | |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 1242 | static void wcd9xxx_onoff_vddio_switch(struct wcd9xxx_mbhc *mbhc, bool on) |
| 1243 | { |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1244 | pr_debug("%s: vddio %d\n", __func__, on); |
Bhalchandra Gajare | f19a926 | 2013-09-19 15:40:08 -0700 | [diff] [blame] | 1245 | |
| 1246 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->pull_mb_to_vddio) { |
| 1247 | mbhc->mbhc_cb->pull_mb_to_vddio(mbhc->codec, on); |
| 1248 | goto exit; |
| 1249 | } |
| 1250 | |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 1251 | if (on) { |
| 1252 | snd_soc_update_bits(mbhc->codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1253 | 1 << 7, 1 << 7); |
| 1254 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MAD_ANA_CTRL, |
| 1255 | 1 << 4, 0); |
| 1256 | } else { |
| 1257 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MAD_ANA_CTRL, |
| 1258 | 1 << 4, 1 << 4); |
| 1259 | snd_soc_update_bits(mbhc->codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1260 | 1 << 7, 0); |
| 1261 | } |
Bhalchandra Gajare | f19a926 | 2013-09-19 15:40:08 -0700 | [diff] [blame] | 1262 | |
| 1263 | exit: |
| 1264 | /* |
| 1265 | * Wait for the micbias to settle down to vddio |
| 1266 | * when the micbias to vddio switch is enabled. |
| 1267 | */ |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 1268 | if (on) |
| 1269 | usleep_range(10000, 10000); |
| 1270 | } |
| 1271 | |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1272 | static int wcd9xxx_hphl_status(struct wcd9xxx_mbhc *mbhc) |
| 1273 | { |
| 1274 | u16 hph, status; |
| 1275 | struct snd_soc_codec *codec = mbhc->codec; |
| 1276 | |
| 1277 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1278 | hph = snd_soc_read(codec, WCD9XXX_A_MBHC_HPH); |
| 1279 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x12, 0x02); |
| 1280 | usleep_range(WCD9XXX_HPHL_STATUS_READY_WAIT_US, |
| 1281 | WCD9XXX_HPHL_STATUS_READY_WAIT_US + |
| 1282 | WCD9XXX_USLEEP_RANGE_MARGIN_US); |
| 1283 | status = snd_soc_read(codec, WCD9XXX_A_RX_HPH_L_STATUS); |
| 1284 | snd_soc_write(codec, WCD9XXX_A_MBHC_HPH, hph); |
| 1285 | return status; |
| 1286 | } |
| 1287 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1288 | static enum wcd9xxx_mbhc_plug_type |
| 1289 | wcd9xxx_cs_find_plug_type(struct wcd9xxx_mbhc *mbhc, |
| 1290 | struct wcd9xxx_mbhc_detect *dt, const int size, |
| 1291 | bool highhph, |
| 1292 | unsigned long event_state) |
| 1293 | { |
| 1294 | int i; |
| 1295 | int vdce, mb_mv; |
| 1296 | int ch, sz, delta_thr; |
| 1297 | int minv = 0, maxv = INT_MIN; |
| 1298 | struct wcd9xxx_mbhc_detect *d = dt; |
| 1299 | struct wcd9xxx_mbhc_detect *dprev = d, *dmicbias = NULL, *dgnd = NULL; |
| 1300 | enum wcd9xxx_mbhc_plug_type type = PLUG_TYPE_INVALID; |
| 1301 | |
| 1302 | const struct wcd9xxx_mbhc_plug_type_cfg *plug_type = |
| 1303 | WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
| 1304 | s16 hs_max, no_mic, dce_z; |
Phani Kumar Uppalapati | 023aaac | 2013-10-30 16:36:04 -0700 | [diff] [blame] | 1305 | int highhph_cnt = 0; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1306 | |
| 1307 | pr_debug("%s: enter\n", __func__); |
| 1308 | pr_debug("%s: event_state 0x%lx\n", __func__, event_state); |
| 1309 | |
| 1310 | sz = size - 1; |
| 1311 | for (i = 0, d = dt, ch = 0; i < sz; i++, d++) { |
| 1312 | if (d->mic_bias) { |
| 1313 | dce_z = mbhc->mbhc_data.dce_z; |
| 1314 | mb_mv = mbhc->mbhc_data.micb_mv; |
| 1315 | hs_max = plug_type->v_hs_max; |
| 1316 | no_mic = plug_type->v_no_mic; |
| 1317 | } else { |
| 1318 | dce_z = mbhc->mbhc_data.dce_nsc_cs_z; |
| 1319 | mb_mv = VDDIO_MICBIAS_MV; |
| 1320 | hs_max = WCD9XXX_V_CS_HS_MAX; |
| 1321 | no_mic = WCD9XXX_V_CS_NO_MIC; |
| 1322 | } |
| 1323 | |
| 1324 | vdce = __wcd9xxx_codec_sta_dce_v(mbhc, true, d->dce, |
| 1325 | dce_z, (u32)mb_mv); |
| 1326 | |
| 1327 | d->_vdces = vdce; |
| 1328 | if (d->_vdces < no_mic) |
| 1329 | d->_type = PLUG_TYPE_HEADPHONE; |
Phani Kumar Uppalapati | 023aaac | 2013-10-30 16:36:04 -0700 | [diff] [blame] | 1330 | else if (d->_vdces >= hs_max) { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1331 | d->_type = PLUG_TYPE_HIGH_HPH; |
Phani Kumar Uppalapati | 023aaac | 2013-10-30 16:36:04 -0700 | [diff] [blame] | 1332 | highhph_cnt++; |
| 1333 | } else |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1334 | d->_type = PLUG_TYPE_HEADSET; |
| 1335 | |
| 1336 | pr_debug("%s: DCE #%d, %04x, V %04d(%04d), HPHL %d TYPE %d\n", |
| 1337 | __func__, i, d->dce, vdce, d->_vdces, |
| 1338 | d->hphl_status & 0x01, |
| 1339 | d->_type); |
| 1340 | |
| 1341 | ch += d->hphl_status & 0x01; |
| 1342 | if (!d->swap_gnd && !d->mic_bias) { |
| 1343 | if (maxv < d->_vdces) |
| 1344 | maxv = d->_vdces; |
| 1345 | if (!minv || minv > d->_vdces) |
| 1346 | minv = d->_vdces; |
| 1347 | } |
| 1348 | if ((!d->mic_bias && |
| 1349 | (d->_vdces >= WCD9XXX_CS_MEAS_INVALD_RANGE_LOW_MV && |
| 1350 | d->_vdces <= WCD9XXX_CS_MEAS_INVALD_RANGE_HIGH_MV)) || |
| 1351 | (d->mic_bias && |
| 1352 | (d->_vdces >= WCD9XXX_MEAS_INVALD_RANGE_LOW_MV && |
| 1353 | d->_vdces <= WCD9XXX_MEAS_INVALD_RANGE_HIGH_MV))) { |
| 1354 | pr_debug("%s: within invalid range\n", __func__); |
| 1355 | type = PLUG_TYPE_INVALID; |
| 1356 | goto exit; |
| 1357 | } |
| 1358 | } |
| 1359 | |
| 1360 | if (event_state & (1 << MBHC_EVENT_PA_HPHL)) { |
| 1361 | pr_debug("%s: HPHL PA was ON\n", __func__); |
| 1362 | } else if (ch != sz && ch > 0) { |
| 1363 | pr_debug("%s: Invalid, inconsistent HPHL\n", __func__); |
| 1364 | type = PLUG_TYPE_INVALID; |
| 1365 | goto exit; |
| 1366 | } |
| 1367 | |
Phani Kumar Uppalapati | 023aaac | 2013-10-30 16:36:04 -0700 | [diff] [blame] | 1368 | delta_thr = ((highhph_cnt == sz) || highhph) ? |
| 1369 | WCD9XXX_MB_MEAS_DELTA_MAX_MV : |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1370 | WCD9XXX_CS_MEAS_DELTA_MAX_MV; |
| 1371 | |
| 1372 | for (i = 0, d = dt; i < sz; i++, d++) { |
| 1373 | if ((i > 0) && !d->mic_bias && !d->swap_gnd && |
| 1374 | (d->_type != dprev->_type)) { |
| 1375 | pr_debug("%s: Invalid, inconsistent types\n", __func__); |
| 1376 | type = PLUG_TYPE_INVALID; |
| 1377 | goto exit; |
| 1378 | } |
| 1379 | |
| 1380 | if (!d->swap_gnd && !d->mic_bias && |
| 1381 | (abs(minv - d->_vdces) > delta_thr || |
| 1382 | abs(maxv - d->_vdces) > delta_thr)) { |
| 1383 | pr_debug("%s: Invalid, delta %dmv, %dmv and %dmv\n", |
| 1384 | __func__, d->_vdces, minv, maxv); |
| 1385 | type = PLUG_TYPE_INVALID; |
| 1386 | goto exit; |
| 1387 | } else if (d->swap_gnd) { |
| 1388 | dgnd = d; |
| 1389 | } |
| 1390 | |
| 1391 | if (!d->mic_bias && !d->swap_gnd) |
| 1392 | dprev = d; |
| 1393 | else if (d->mic_bias) |
| 1394 | dmicbias = d; |
| 1395 | } |
| 1396 | if (dgnd && dt->_type != PLUG_TYPE_HEADSET && |
| 1397 | dt->_type != dgnd->_type) { |
| 1398 | pr_debug("%s: Invalid, inconsistent types\n", __func__); |
| 1399 | type = PLUG_TYPE_INVALID; |
| 1400 | goto exit; |
| 1401 | } |
| 1402 | |
| 1403 | type = dt->_type; |
| 1404 | if (dmicbias) { |
| 1405 | if (dmicbias->_type == PLUG_TYPE_HEADSET && |
| 1406 | (dt->_type == PLUG_TYPE_HIGH_HPH || |
| 1407 | dt->_type == PLUG_TYPE_HEADSET)) { |
| 1408 | type = PLUG_TYPE_HEADSET; |
| 1409 | if (dt->_type == PLUG_TYPE_HIGH_HPH) { |
| 1410 | pr_debug("%s: Headset with threshold on MIC detected\n", |
| 1411 | __func__); |
| 1412 | if (mbhc->mbhc_cfg->micbias_enable_flags & |
| 1413 | (1 << MBHC_MICBIAS_ENABLE_THRESHOLD_HEADSET)) |
| 1414 | mbhc->micbias_enable = true; |
| 1415 | } |
| 1416 | } |
| 1417 | } |
| 1418 | |
| 1419 | if (!(event_state & (1UL << MBHC_EVENT_PA_HPHL))) { |
| 1420 | if (((type == PLUG_TYPE_HEADSET || |
| 1421 | type == PLUG_TYPE_HEADPHONE) && ch != sz)) { |
| 1422 | pr_debug("%s: Invalid, not fully inserted, TYPE %d\n", |
| 1423 | __func__, type); |
| 1424 | type = PLUG_TYPE_INVALID; |
| 1425 | } |
| 1426 | } |
| 1427 | if (type == PLUG_TYPE_HEADSET && dgnd && !dgnd->mic_bias) { |
| 1428 | if ((dgnd->_vdces + WCD9XXX_CS_GM_SWAP_THRES_MIN_MV < |
| 1429 | minv) && |
| 1430 | (dgnd->_vdces + WCD9XXX_CS_GM_SWAP_THRES_MAX_MV > |
| 1431 | maxv)) |
| 1432 | type = PLUG_TYPE_GND_MIC_SWAP; |
Phani Kumar Uppalapati | 4dce16b | 2013-08-28 16:22:49 -0700 | [diff] [blame] | 1433 | else if (dgnd->_type != PLUG_TYPE_HEADSET && !dmicbias) { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1434 | pr_debug("%s: Invalid, inconsistent types\n", __func__); |
| 1435 | type = PLUG_TYPE_INVALID; |
| 1436 | } |
| 1437 | } |
| 1438 | exit: |
| 1439 | pr_debug("%s: Plug type %d detected\n", __func__, type); |
| 1440 | return type; |
| 1441 | } |
| 1442 | |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1443 | /* |
| 1444 | * wcd9xxx_find_plug_type : Find out and return the best plug type with given |
| 1445 | * list of wcd9xxx_mbhc_detect structure. |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1446 | * param mbhc wcd9xxx_mbhc structure |
| 1447 | * param dt collected measurements |
| 1448 | * param size array size of dt |
| 1449 | * param event_state mbhc->event_state when dt is collected |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1450 | */ |
| 1451 | static enum wcd9xxx_mbhc_plug_type |
| 1452 | wcd9xxx_find_plug_type(struct wcd9xxx_mbhc *mbhc, |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1453 | struct wcd9xxx_mbhc_detect *dt, const int size, |
| 1454 | unsigned long event_state) |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1455 | { |
| 1456 | int i; |
| 1457 | int ch; |
| 1458 | enum wcd9xxx_mbhc_plug_type type; |
| 1459 | int vdce; |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1460 | struct wcd9xxx_mbhc_detect *d, *dprev, *dgnd = NULL, *dvddio = NULL; |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1461 | int maxv = 0, minv = 0; |
| 1462 | const struct wcd9xxx_mbhc_plug_type_cfg *plug_type = |
| 1463 | WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
| 1464 | const s16 hs_max = plug_type->v_hs_max; |
| 1465 | const s16 no_mic = plug_type->v_no_mic; |
| 1466 | |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1467 | pr_debug("%s: event_state 0x%lx\n", __func__, event_state); |
| 1468 | |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1469 | for (i = 0, d = dt, ch = 0; i < size; i++, d++) { |
| 1470 | vdce = wcd9xxx_codec_sta_dce_v(mbhc, true, d->dce); |
| 1471 | if (d->vddio) |
| 1472 | d->_vdces = scale_v_micb_vddio(mbhc, vdce, false); |
| 1473 | else |
| 1474 | d->_vdces = vdce; |
| 1475 | |
| 1476 | if (d->_vdces >= no_mic && d->_vdces < hs_max) |
| 1477 | d->_type = PLUG_TYPE_HEADSET; |
| 1478 | else if (d->_vdces < no_mic) |
| 1479 | d->_type = PLUG_TYPE_HEADPHONE; |
| 1480 | else |
| 1481 | d->_type = PLUG_TYPE_HIGH_HPH; |
| 1482 | |
| 1483 | ch += d->hphl_status & 0x01; |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1484 | if (!d->swap_gnd && !d->hwvalue && !d->vddio) { |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1485 | if (maxv < d->_vdces) |
| 1486 | maxv = d->_vdces; |
| 1487 | if (!minv || minv > d->_vdces) |
| 1488 | minv = d->_vdces; |
| 1489 | } |
| 1490 | |
| 1491 | pr_debug("%s: DCE #%d, %04x, V %04d(%04d), GND %d, VDDIO %d, HPHL %d TYPE %d\n", |
| 1492 | __func__, i, d->dce, vdce, d->_vdces, |
| 1493 | d->swap_gnd, d->vddio, d->hphl_status & 0x01, |
| 1494 | d->_type); |
Joonwoo Park | 141d618 | 2013-03-05 12:25:46 -0800 | [diff] [blame] | 1495 | |
| 1496 | |
| 1497 | /* |
| 1498 | * If GND and MIC prongs are aligned to HPHR and GND of |
| 1499 | * headphone, codec measures the voltage based on |
| 1500 | * impedance between HPHR and GND which results in ~80mv. |
| 1501 | * Avoid this. |
| 1502 | */ |
| 1503 | if (d->_vdces >= WCD9XXX_MEAS_INVALD_RANGE_LOW_MV && |
| 1504 | d->_vdces <= WCD9XXX_MEAS_INVALD_RANGE_HIGH_MV) { |
| 1505 | pr_debug("%s: within invalid range\n", __func__); |
| 1506 | type = PLUG_TYPE_INVALID; |
| 1507 | goto exit; |
| 1508 | } |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1509 | } |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1510 | |
| 1511 | if (event_state & (1 << MBHC_EVENT_PA_HPHL)) { |
| 1512 | pr_debug("%s: HPHL PA was ON\n", __func__); |
| 1513 | } else if (ch != size && ch > 0) { |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1514 | pr_debug("%s: Invalid, inconsistent HPHL\n", __func__); |
| 1515 | type = PLUG_TYPE_INVALID; |
| 1516 | goto exit; |
| 1517 | } |
| 1518 | |
Joonwoo Park | a84ec45 | 2013-07-17 15:02:52 -0700 | [diff] [blame] | 1519 | for (i = 0, dprev = NULL, d = dt; i < size; i++, d++) { |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1520 | if (d->vddio) { |
| 1521 | dvddio = d; |
| 1522 | continue; |
| 1523 | } |
| 1524 | |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1525 | if ((i > 0) && (d->_type != dprev->_type)) { |
| 1526 | pr_debug("%s: Invalid, inconsistent types\n", __func__); |
| 1527 | type = PLUG_TYPE_INVALID; |
| 1528 | goto exit; |
| 1529 | } |
| 1530 | |
| 1531 | if (!d->swap_gnd && !d->hwvalue && |
| 1532 | (abs(minv - d->_vdces) > WCD9XXX_MEAS_DELTA_MAX_MV || |
| 1533 | abs(maxv - d->_vdces) > WCD9XXX_MEAS_DELTA_MAX_MV)) { |
| 1534 | pr_debug("%s: Invalid, delta %dmv, %dmv and %dmv\n", |
| 1535 | __func__, d->_vdces, minv, maxv); |
| 1536 | type = PLUG_TYPE_INVALID; |
| 1537 | goto exit; |
| 1538 | } else if (d->swap_gnd) { |
| 1539 | dgnd = d; |
| 1540 | } |
| 1541 | dprev = d; |
| 1542 | } |
| 1543 | |
| 1544 | WARN_ON(i != size); |
| 1545 | type = dt->_type; |
| 1546 | if (type == PLUG_TYPE_HEADSET && dgnd) { |
| 1547 | if ((dgnd->_vdces + WCD9XXX_GM_SWAP_THRES_MIN_MV < |
| 1548 | minv) && |
| 1549 | (dgnd->_vdces + WCD9XXX_GM_SWAP_THRES_MAX_MV > |
| 1550 | maxv)) |
| 1551 | type = PLUG_TYPE_GND_MIC_SWAP; |
| 1552 | } |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1553 | |
| 1554 | /* if HPHL PA was on, we cannot use hphl status */ |
| 1555 | if (!(event_state & (1UL << MBHC_EVENT_PA_HPHL))) { |
| 1556 | if (((type == PLUG_TYPE_HEADSET || |
| 1557 | type == PLUG_TYPE_HEADPHONE) && ch != size) || |
| 1558 | (type == PLUG_TYPE_GND_MIC_SWAP && ch)) { |
| 1559 | pr_debug("%s: Invalid, not fully inserted, TYPE %d\n", |
| 1560 | __func__, type); |
| 1561 | type = PLUG_TYPE_INVALID; |
| 1562 | } |
Phani Kumar Uppalapati | ec818fe | 2013-03-13 15:39:03 -0700 | [diff] [blame] | 1563 | } |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1564 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1565 | if (type == PLUG_TYPE_HEADSET && dvddio) { |
| 1566 | if ((dvddio->_vdces > hs_max) || |
| 1567 | (dvddio->_vdces > minv + WCD9XXX_THRESHOLD_MIC_THRESHOLD)) { |
| 1568 | pr_debug("%s: Headset with threshold on MIC detected\n", |
| 1569 | __func__); |
| 1570 | if (mbhc->mbhc_cfg->micbias_enable_flags & |
| 1571 | (1 << MBHC_MICBIAS_ENABLE_THRESHOLD_HEADSET)) |
| 1572 | mbhc->micbias_enable = true; |
| 1573 | } else { |
| 1574 | pr_debug("%s: Headset with regular MIC detected\n", |
| 1575 | __func__); |
| 1576 | if (mbhc->mbhc_cfg->micbias_enable_flags & |
| 1577 | (1 << MBHC_MICBIAS_ENABLE_REGULAR_HEADSET)) |
| 1578 | mbhc->micbias_enable = true; |
| 1579 | } |
| 1580 | } |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1581 | exit: |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1582 | pr_debug("%s: Plug type %d detected, micbias_enable %d\n", __func__, |
| 1583 | type, mbhc->micbias_enable); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1584 | return type; |
| 1585 | } |
| 1586 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1587 | /* |
| 1588 | * Pull down MBHC micbias for provided duration in microsecond. |
| 1589 | */ |
| 1590 | static int wcd9xxx_pull_down_micbias(struct wcd9xxx_mbhc *mbhc, int us) |
| 1591 | { |
| 1592 | bool micbiasconn = false; |
| 1593 | struct snd_soc_codec *codec = mbhc->codec; |
| 1594 | const u16 ctlreg = mbhc->mbhc_bias_regs.ctl_reg; |
| 1595 | |
| 1596 | /* |
| 1597 | * Disable MBHC to micbias connection to pull down |
| 1598 | * micbias and pull down micbias for a moment. |
| 1599 | */ |
| 1600 | if ((snd_soc_read(mbhc->codec, ctlreg) & 0x01)) { |
| 1601 | WARN_ONCE(1, "MBHC micbias is already pulled down unexpectedly\n"); |
| 1602 | return -EFAULT; |
| 1603 | } |
| 1604 | |
| 1605 | if ((snd_soc_read(mbhc->codec, WCD9XXX_A_MAD_ANA_CTRL) & 1 << 4)) { |
| 1606 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MAD_ANA_CTRL, |
| 1607 | 1 << 4, 0); |
| 1608 | micbiasconn = true; |
| 1609 | } |
| 1610 | |
| 1611 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x01); |
| 1612 | |
| 1613 | /* |
| 1614 | * Pull down for 1ms to discharge bias. Give small margin (10us) to be |
| 1615 | * able to get consistent result across DCEs. |
| 1616 | */ |
| 1617 | usleep_range(1000, 1000 + 10); |
| 1618 | |
| 1619 | if (micbiasconn) |
| 1620 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_MAD_ANA_CTRL, |
| 1621 | 1 << 4, 1 << 4); |
| 1622 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x00); |
| 1623 | usleep_range(us, us + WCD9XXX_USLEEP_RANGE_MARGIN_US); |
| 1624 | |
| 1625 | return 0; |
| 1626 | } |
| 1627 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1628 | void wcd9xxx_turn_onoff_current_source(struct wcd9xxx_mbhc *mbhc, bool on, |
| 1629 | bool highhph) |
| 1630 | { |
| 1631 | |
| 1632 | struct snd_soc_codec *codec; |
| 1633 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 1634 | const struct wcd9xxx_mbhc_plug_detect_cfg *plug_det = |
| 1635 | WCD9XXX_MBHC_CAL_PLUG_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 1636 | |
| 1637 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 1638 | codec = mbhc->codec; |
| 1639 | |
| 1640 | if (on) { |
| 1641 | pr_debug("%s: enabling current source\n", __func__); |
| 1642 | /* Nsc to 9 */ |
| 1643 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 1644 | 0x78, 0x48); |
| 1645 | /* pull down diode bit to 0 */ |
| 1646 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1647 | 0x01, 0x00); |
| 1648 | /* |
| 1649 | * Keep the low power insertion/removal |
| 1650 | * detection (reg 0x3DD) disabled |
| 1651 | */ |
| 1652 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, |
| 1653 | 0x01, 0x00); |
| 1654 | /* |
| 1655 | * Enable the Mic Bias current source |
| 1656 | * Write bits[6:5] of register MICB_2_MBHC to 0x3 (V_20_UA) |
| 1657 | * Write bit[7] of register MICB_2_MBHC to 1 |
| 1658 | * (INS_DET_ISRC_EN__ENABLE) |
| 1659 | * MICB_2_MBHC__SCHT_TRIG_EN to 1 |
| 1660 | */ |
| 1661 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1662 | 0xF0, 0xF0); |
| 1663 | /* Disconnect MBHC Override from MicBias and LDOH */ |
| 1664 | snd_soc_update_bits(codec, WCD9XXX_A_MAD_ANA_CTRL, 0x10, 0x00); |
| 1665 | } else { |
| 1666 | pr_debug("%s: disabling current source\n", __func__); |
| 1667 | /* Connect MBHC Override from MicBias and LDOH */ |
| 1668 | snd_soc_update_bits(codec, WCD9XXX_A_MAD_ANA_CTRL, 0x10, 0x10); |
| 1669 | /* INS_DET_ISRC_CTL to acdb value */ |
| 1670 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1671 | 0x60, plug_det->mic_current << 5); |
| 1672 | if (!highhph) { |
| 1673 | /* INS_DET_ISRC_EN__ENABLE to 0 */ |
| 1674 | snd_soc_update_bits(codec, |
| 1675 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 1676 | 0x80, 0x00); |
| 1677 | /* MICB_2_MBHC__SCHT_TRIG_EN to 0 */ |
| 1678 | snd_soc_update_bits(codec, |
| 1679 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 1680 | 0x10, 0x00); |
| 1681 | } |
| 1682 | /* Nsc to acdb value */ |
| 1683 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x78, |
| 1684 | btn_det->mbhc_nsc << 3); |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | static enum wcd9xxx_mbhc_plug_type |
| 1689 | wcd9xxx_codec_cs_get_plug_type(struct wcd9xxx_mbhc *mbhc, bool highhph) |
| 1690 | { |
| 1691 | struct snd_soc_codec *codec = mbhc->codec; |
| 1692 | struct wcd9xxx_mbhc_detect rt[NUM_DCE_PLUG_INS_DETECT]; |
| 1693 | enum wcd9xxx_mbhc_plug_type type = PLUG_TYPE_INVALID; |
| 1694 | int i; |
| 1695 | |
| 1696 | pr_debug("%s: enter\n", __func__); |
| 1697 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1698 | |
| 1699 | BUG_ON(NUM_DCE_PLUG_INS_DETECT < 4); |
| 1700 | |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 1701 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, true); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1702 | rt[0].swap_gnd = false; |
| 1703 | rt[0].vddio = false; |
| 1704 | rt[0].hwvalue = true; |
| 1705 | rt[0].hphl_status = wcd9xxx_hphl_status(mbhc); |
| 1706 | rt[0].dce = wcd9xxx_mbhc_setup_hs_polling(mbhc, true); |
| 1707 | rt[0].mic_bias = false; |
| 1708 | |
| 1709 | for (i = 1; i < NUM_DCE_PLUG_INS_DETECT - 1; i++) { |
| 1710 | rt[i].swap_gnd = (i == NUM_DCE_PLUG_INS_DETECT - 3); |
| 1711 | rt[i].mic_bias = ((i == NUM_DCE_PLUG_INS_DETECT - 4) && |
| 1712 | highhph); |
| 1713 | rt[i].hphl_status = wcd9xxx_hphl_status(mbhc); |
| 1714 | if (rt[i].swap_gnd) |
| 1715 | wcd9xxx_codec_hphr_gnd_switch(codec, true); |
| 1716 | |
| 1717 | if (rt[i].mic_bias) |
| 1718 | wcd9xxx_turn_onoff_current_source(mbhc, false, false); |
| 1719 | |
| 1720 | rt[i].dce = __wcd9xxx_codec_sta_dce(mbhc, 1, !highhph, true); |
| 1721 | if (rt[i].mic_bias) |
| 1722 | wcd9xxx_turn_onoff_current_source(mbhc, true, false); |
| 1723 | if (rt[i].swap_gnd) |
| 1724 | wcd9xxx_codec_hphr_gnd_switch(codec, false); |
| 1725 | } |
| 1726 | |
| 1727 | type = wcd9xxx_cs_find_plug_type(mbhc, rt, ARRAY_SIZE(rt), highhph, |
| 1728 | mbhc->event_state); |
| 1729 | |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 1730 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, false); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1731 | pr_debug("%s: plug_type:%d\n", __func__, type); |
| 1732 | |
| 1733 | return type; |
| 1734 | } |
| 1735 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1736 | static enum wcd9xxx_mbhc_plug_type |
| 1737 | wcd9xxx_codec_get_plug_type(struct wcd9xxx_mbhc *mbhc, bool highhph) |
| 1738 | { |
| 1739 | int i; |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1740 | bool vddioon; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1741 | struct wcd9xxx_mbhc_plug_type_cfg *plug_type_ptr; |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1742 | struct wcd9xxx_mbhc_detect rt[NUM_DCE_PLUG_INS_DETECT]; |
| 1743 | enum wcd9xxx_mbhc_plug_type type = PLUG_TYPE_INVALID; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1744 | struct snd_soc_codec *codec = mbhc->codec; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1745 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1746 | pr_debug("%s: enter\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1747 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1748 | |
| 1749 | /* make sure override is on */ |
| 1750 | WARN_ON(!(snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_CTL) & 0x04)); |
| 1751 | |
| 1752 | /* GND and MIC swap detection requires at least 2 rounds of DCE */ |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1753 | BUG_ON(NUM_DCE_PLUG_INS_DETECT < 2); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1754 | |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1755 | /* |
| 1756 | * There are chances vddio switch is on and cfilt voltage is adjusted |
| 1757 | * to vddio voltage even after plug type removal reported. |
| 1758 | */ |
| 1759 | vddioon = __wcd9xxx_switch_micbias(mbhc, 0, false, false); |
| 1760 | pr_debug("%s: vddio switch was %s\n", __func__, vddioon ? "on" : "off"); |
| 1761 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1762 | plug_type_ptr = |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1763 | WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1764 | |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1765 | /* |
| 1766 | * cfilter in fast mode requires 1ms to charge up and down micbias |
| 1767 | * fully. |
| 1768 | */ |
| 1769 | (void) wcd9xxx_pull_down_micbias(mbhc, |
| 1770 | WCD9XXX_MICBIAS_PULLDOWN_SETTLE_US); |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 1771 | |
| 1772 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, true); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1773 | rt[0].hphl_status = wcd9xxx_hphl_status(mbhc); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 1774 | rt[0].dce = wcd9xxx_mbhc_setup_hs_polling(mbhc, false); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1775 | rt[0].swap_gnd = false; |
| 1776 | rt[0].vddio = false; |
| 1777 | rt[0].hwvalue = true; |
| 1778 | for (i = 1; i < NUM_DCE_PLUG_INS_DETECT; i++) { |
| 1779 | rt[i].swap_gnd = (i == NUM_DCE_PLUG_INS_DETECT - 2); |
| 1780 | if (detect_use_vddio_switch) |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1781 | rt[i].vddio = (i == 1); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1782 | else |
| 1783 | rt[i].vddio = false; |
| 1784 | rt[i].hphl_status = wcd9xxx_hphl_status(mbhc); |
| 1785 | rt[i].hwvalue = false; |
| 1786 | if (rt[i].swap_gnd) |
| 1787 | wcd9xxx_codec_hphr_gnd_switch(codec, true); |
| 1788 | if (rt[i].vddio) |
| 1789 | wcd9xxx_onoff_vddio_switch(mbhc, true); |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 1790 | /* |
| 1791 | * Pull down micbias to detect headset with mic which has |
| 1792 | * threshold and to have more consistent voltage measurements. |
| 1793 | * |
| 1794 | * cfilter in fast mode requires 1ms to charge up and down |
| 1795 | * micbias fully. |
| 1796 | */ |
| 1797 | (void) wcd9xxx_pull_down_micbias(mbhc, |
| 1798 | WCD9XXX_MICBIAS_PULLDOWN_SETTLE_US); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1799 | rt[i].dce = __wcd9xxx_codec_sta_dce(mbhc, 1, true, true); |
| 1800 | if (rt[i].vddio) |
| 1801 | wcd9xxx_onoff_vddio_switch(mbhc, false); |
| 1802 | if (rt[i].swap_gnd) |
| 1803 | wcd9xxx_codec_hphr_gnd_switch(codec, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1804 | } |
| 1805 | |
Joonwoo Park | ddcd883 | 2013-06-19 15:58:47 -0700 | [diff] [blame] | 1806 | if (vddioon) |
| 1807 | __wcd9xxx_switch_micbias(mbhc, 1, false, false); |
| 1808 | |
| 1809 | type = wcd9xxx_find_plug_type(mbhc, rt, ARRAY_SIZE(rt), |
| 1810 | mbhc->event_state); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1811 | |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 1812 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, false); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1813 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | 20bc9da | 2013-01-16 12:58:06 -0800 | [diff] [blame] | 1814 | return type; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1815 | } |
| 1816 | |
| 1817 | static bool wcd9xxx_swch_level_remove(struct wcd9xxx_mbhc *mbhc) |
| 1818 | { |
| 1819 | if (mbhc->mbhc_cfg->gpio) |
| 1820 | return (gpio_get_value_cansleep(mbhc->mbhc_cfg->gpio) != |
| 1821 | mbhc->mbhc_cfg->gpio_level_insert); |
| 1822 | else if (mbhc->mbhc_cfg->insert_detect) |
| 1823 | return snd_soc_read(mbhc->codec, |
| 1824 | WCD9XXX_A_MBHC_INSERT_DET_STATUS) & |
| 1825 | (1 << 2); |
| 1826 | else |
| 1827 | WARN(1, "Invalid jack detection configuration\n"); |
| 1828 | |
| 1829 | return true; |
| 1830 | } |
| 1831 | |
| 1832 | static bool is_clk_active(struct snd_soc_codec *codec) |
| 1833 | { |
| 1834 | return !!(snd_soc_read(codec, WCD9XXX_A_CDC_CLK_MCLK_CTL) & 0x05); |
| 1835 | } |
| 1836 | |
| 1837 | static int wcd9xxx_enable_hs_detect(struct wcd9xxx_mbhc *mbhc, |
| 1838 | int insertion, int trigger, bool padac_off) |
| 1839 | { |
| 1840 | struct snd_soc_codec *codec = mbhc->codec; |
| 1841 | int central_bias_enabled = 0; |
| 1842 | const struct wcd9xxx_mbhc_general_cfg *generic = |
| 1843 | WCD9XXX_MBHC_CAL_GENERAL_PTR(mbhc->mbhc_cfg->calibration); |
| 1844 | const struct wcd9xxx_mbhc_plug_detect_cfg *plug_det = |
| 1845 | WCD9XXX_MBHC_CAL_PLUG_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 1846 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1847 | pr_debug("%s: enter insertion(%d) trigger(0x%x)\n", |
| 1848 | __func__, insertion, trigger); |
| 1849 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1850 | if (!mbhc->mbhc_cfg->calibration) { |
| 1851 | pr_err("Error, no wcd9xxx calibration\n"); |
| 1852 | return -EINVAL; |
| 1853 | } |
| 1854 | |
| 1855 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, 0x1, 0); |
| 1856 | |
| 1857 | /* |
| 1858 | * Make sure mic bias and Mic line schmitt trigger |
| 1859 | * are turned OFF |
| 1860 | */ |
| 1861 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x01); |
| 1862 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x90, 0x00); |
| 1863 | |
| 1864 | if (insertion) { |
| 1865 | wcd9xxx_switch_micbias(mbhc, 0); |
| 1866 | |
| 1867 | /* DAPM can manipulate PA/DAC bits concurrently */ |
| 1868 | if (padac_off == true) |
| 1869 | wcd9xxx_set_and_turnoff_hph_padac(mbhc); |
| 1870 | |
| 1871 | if (trigger & MBHC_USE_HPHL_TRIGGER) { |
| 1872 | /* Enable HPH Schmitt Trigger */ |
| 1873 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x11, |
| 1874 | 0x11); |
| 1875 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x0C, |
| 1876 | plug_det->hph_current << 2); |
| 1877 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x02, |
| 1878 | 0x02); |
| 1879 | } |
| 1880 | if (trigger & MBHC_USE_MB_TRIGGER) { |
| 1881 | /* enable the mic line schmitt trigger */ |
| 1882 | snd_soc_update_bits(codec, |
| 1883 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 1884 | 0x60, plug_det->mic_current << 5); |
| 1885 | snd_soc_update_bits(codec, |
| 1886 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 1887 | 0x80, 0x80); |
| 1888 | usleep_range(plug_det->t_mic_pid, plug_det->t_mic_pid); |
| 1889 | snd_soc_update_bits(codec, |
| 1890 | mbhc->mbhc_bias_regs.ctl_reg, 0x01, |
| 1891 | 0x00); |
| 1892 | snd_soc_update_bits(codec, |
| 1893 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 1894 | 0x10, 0x10); |
| 1895 | } |
| 1896 | |
| 1897 | /* setup for insetion detection */ |
| 1898 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, 0x2, 0); |
| 1899 | } else { |
| 1900 | pr_debug("setup for removal detection\n"); |
| 1901 | /* Make sure the HPH schmitt trigger is OFF */ |
| 1902 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x12, 0x00); |
| 1903 | |
| 1904 | /* enable the mic line schmitt trigger */ |
| 1905 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, |
| 1906 | 0x01, 0x00); |
| 1907 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x60, |
| 1908 | plug_det->mic_current << 5); |
| 1909 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1910 | 0x80, 0x80); |
| 1911 | usleep_range(plug_det->t_mic_pid, plug_det->t_mic_pid); |
| 1912 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, |
| 1913 | 0x10, 0x10); |
| 1914 | |
| 1915 | /* Setup for low power removal detection */ |
| 1916 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, 0x2, |
| 1917 | 0x2); |
| 1918 | } |
| 1919 | |
| 1920 | if (snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_CTL) & 0x4) { |
| 1921 | /* called by interrupt */ |
| 1922 | if (!is_clk_active(codec)) { |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 1923 | wcd9xxx_resmgr_enable_config_mode(mbhc->resmgr, 1); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1924 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 1925 | 0x06, 0); |
| 1926 | usleep_range(generic->t_shutdown_plug_rem, |
| 1927 | generic->t_shutdown_plug_rem); |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 1928 | wcd9xxx_resmgr_enable_config_mode(mbhc->resmgr, 0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1929 | } else |
| 1930 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 1931 | 0x06, 0); |
| 1932 | } |
| 1933 | |
| 1934 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.int_rbias, 0x80, 0); |
| 1935 | |
| 1936 | /* If central bandgap disabled */ |
| 1937 | if (!(snd_soc_read(codec, WCD9XXX_A_PIN_CTL_OE1) & 1)) { |
| 1938 | snd_soc_update_bits(codec, WCD9XXX_A_PIN_CTL_OE1, 0x3, 0x3); |
| 1939 | usleep_range(generic->t_bg_fast_settle, |
| 1940 | generic->t_bg_fast_settle); |
| 1941 | central_bias_enabled = 1; |
| 1942 | } |
| 1943 | |
| 1944 | /* If LDO_H disabled */ |
| 1945 | if (snd_soc_read(codec, WCD9XXX_A_PIN_CTL_OE0) & 0x80) { |
| 1946 | snd_soc_update_bits(codec, WCD9XXX_A_PIN_CTL_OE0, 0x10, 0); |
| 1947 | snd_soc_update_bits(codec, WCD9XXX_A_PIN_CTL_OE0, 0x80, 0x80); |
| 1948 | usleep_range(generic->t_ldoh, generic->t_ldoh); |
| 1949 | snd_soc_update_bits(codec, WCD9XXX_A_PIN_CTL_OE0, 0x80, 0); |
| 1950 | |
| 1951 | if (central_bias_enabled) |
| 1952 | snd_soc_update_bits(codec, WCD9XXX_A_PIN_CTL_OE1, 0x1, |
| 1953 | 0); |
| 1954 | } |
| 1955 | |
Meng Wang | eeaaaba | 2013-09-09 18:37:32 +0800 | [diff] [blame] | 1956 | if (mbhc->resmgr->reg_addr && mbhc->resmgr->reg_addr->micb_4_mbhc) |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 1957 | snd_soc_update_bits(codec, mbhc->resmgr->reg_addr->micb_4_mbhc, |
| 1958 | 0x3, mbhc->mbhc_cfg->micbias); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1959 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 1960 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, mbhc->intr_ids->insertion); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1961 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, 0x1, 0x1); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1962 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1963 | |
| 1964 | return 0; |
| 1965 | } |
| 1966 | |
| 1967 | /* called under codec_resource_lock acquisition */ |
| 1968 | static void wcd9xxx_find_plug_and_report(struct wcd9xxx_mbhc *mbhc, |
| 1969 | enum wcd9xxx_mbhc_plug_type plug_type) |
| 1970 | { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1971 | pr_debug("%s: enter current_plug(%d) new_plug(%d)\n", |
| 1972 | __func__, mbhc->current_plug, plug_type); |
| 1973 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1974 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 1975 | |
| 1976 | if (plug_type == PLUG_TYPE_HEADPHONE && |
| 1977 | mbhc->current_plug == PLUG_TYPE_NONE) { |
| 1978 | /* |
| 1979 | * Nothing was reported previously |
| 1980 | * report a headphone or unsupported |
| 1981 | */ |
| 1982 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_HEADPHONE); |
| 1983 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 1984 | } else if (plug_type == PLUG_TYPE_GND_MIC_SWAP) { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 1985 | if (!mbhc->mbhc_cfg->detect_extn_cable) { |
| 1986 | if (mbhc->current_plug == PLUG_TYPE_HEADSET) |
| 1987 | wcd9xxx_report_plug(mbhc, 0, |
| 1988 | SND_JACK_HEADSET); |
| 1989 | else if (mbhc->current_plug == PLUG_TYPE_HEADPHONE) |
| 1990 | wcd9xxx_report_plug(mbhc, 0, |
| 1991 | SND_JACK_HEADPHONE); |
| 1992 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 1993 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_UNSUPPORTED); |
| 1994 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 1995 | } else if (plug_type == PLUG_TYPE_HEADSET) { |
| 1996 | /* |
| 1997 | * If Headphone was reported previously, this will |
| 1998 | * only report the mic line |
| 1999 | */ |
| 2000 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_HEADSET); |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 2001 | /* Button detection required RC oscillator */ |
| 2002 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2003 | msleep(100); |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 2004 | |
| 2005 | /* if PA is already on, switch micbias source to VDDIO */ |
| 2006 | if (mbhc->event_state & |
| 2007 | (1 << MBHC_EVENT_PA_HPHL | 1 << MBHC_EVENT_PA_HPHR)) |
| 2008 | __wcd9xxx_switch_micbias(mbhc, 1, false, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2009 | wcd9xxx_start_hs_polling(mbhc); |
| 2010 | } else if (plug_type == PLUG_TYPE_HIGH_HPH) { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2011 | if (mbhc->mbhc_cfg->detect_extn_cable) { |
| 2012 | /* High impedance device found. Report as LINEOUT*/ |
| 2013 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_LINEOUT); |
| 2014 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2015 | pr_debug("%s: setup mic trigger for further detection\n", |
| 2016 | __func__); |
| 2017 | mbhc->lpi_enabled = true; |
| 2018 | /* |
| 2019 | * Do not enable HPHL trigger. If playback is active, |
| 2020 | * it might lead to continuous false HPHL triggers |
| 2021 | */ |
| 2022 | wcd9xxx_enable_hs_detect(mbhc, 1, MBHC_USE_MB_TRIGGER, |
| 2023 | false); |
| 2024 | } else { |
| 2025 | if (mbhc->current_plug == PLUG_TYPE_NONE) |
| 2026 | wcd9xxx_report_plug(mbhc, 1, |
| 2027 | SND_JACK_HEADPHONE); |
| 2028 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2029 | pr_debug("setup mic trigger for further detection\n"); |
| 2030 | mbhc->lpi_enabled = true; |
| 2031 | wcd9xxx_enable_hs_detect(mbhc, 1, MBHC_USE_MB_TRIGGER | |
| 2032 | MBHC_USE_HPHL_TRIGGER, |
| 2033 | false); |
| 2034 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2035 | } else { |
| 2036 | WARN(1, "Unexpected current plug_type %d, plug_type %d\n", |
| 2037 | mbhc->current_plug, plug_type); |
| 2038 | } |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2039 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2040 | } |
| 2041 | |
| 2042 | /* called under codec_resource_lock acquisition */ |
| 2043 | static void wcd9xxx_mbhc_decide_swch_plug(struct wcd9xxx_mbhc *mbhc) |
| 2044 | { |
| 2045 | enum wcd9xxx_mbhc_plug_type plug_type; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2046 | bool current_source_enable; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2047 | |
| 2048 | pr_debug("%s: enter\n", __func__); |
| 2049 | |
| 2050 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2051 | current_source_enable = ((mbhc->mbhc_cfg->cs_enable_flags & |
| 2052 | (1 << MBHC_CS_ENABLE_INSERTION)) != 0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2053 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2054 | if (current_source_enable) { |
| 2055 | wcd9xxx_turn_onoff_current_source(mbhc, true, false); |
| 2056 | plug_type = wcd9xxx_codec_cs_get_plug_type(mbhc, false); |
| 2057 | wcd9xxx_turn_onoff_current_source(mbhc, false, false); |
| 2058 | } else { |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2059 | wcd9xxx_turn_onoff_override(mbhc, true); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2060 | plug_type = wcd9xxx_codec_get_plug_type(mbhc, true); |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2061 | wcd9xxx_turn_onoff_override(mbhc, false); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2062 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2063 | |
| 2064 | if (wcd9xxx_swch_level_remove(mbhc)) { |
| 2065 | pr_debug("%s: Switch level is low when determining plug\n", |
| 2066 | __func__); |
| 2067 | return; |
| 2068 | } |
| 2069 | |
| 2070 | if (plug_type == PLUG_TYPE_INVALID || |
| 2071 | plug_type == PLUG_TYPE_GND_MIC_SWAP) { |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2072 | wcd9xxx_cleanup_hs_polling(mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2073 | wcd9xxx_schedule_hs_detect_plug(mbhc, |
| 2074 | &mbhc->correct_plug_swch); |
| 2075 | } else if (plug_type == PLUG_TYPE_HEADPHONE) { |
| 2076 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_HEADPHONE); |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2077 | wcd9xxx_cleanup_hs_polling(mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2078 | wcd9xxx_schedule_hs_detect_plug(mbhc, |
| 2079 | &mbhc->correct_plug_swch); |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2080 | } else if (plug_type == PLUG_TYPE_HIGH_HPH) { |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2081 | wcd9xxx_cleanup_hs_polling(mbhc); |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2082 | wcd9xxx_schedule_hs_detect_plug(mbhc, |
| 2083 | &mbhc->correct_plug_swch); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2084 | } else { |
| 2085 | pr_debug("%s: Valid plug found, determine plug type %d\n", |
| 2086 | __func__, plug_type); |
| 2087 | wcd9xxx_find_plug_and_report(mbhc, plug_type); |
| 2088 | } |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2089 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2090 | } |
| 2091 | |
| 2092 | /* called under codec_resource_lock acquisition */ |
| 2093 | static void wcd9xxx_mbhc_detect_plug_type(struct wcd9xxx_mbhc *mbhc) |
| 2094 | { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2095 | pr_debug("%s: enter\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2096 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 2097 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2098 | if (wcd9xxx_swch_level_remove(mbhc)) |
| 2099 | pr_debug("%s: Switch level low when determining plug\n", |
| 2100 | __func__); |
| 2101 | else |
| 2102 | wcd9xxx_mbhc_decide_swch_plug(mbhc); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2103 | pr_debug("%s: leave\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2104 | } |
| 2105 | |
| 2106 | /* called only from interrupt which is under codec_resource_lock acquisition */ |
| 2107 | static void wcd9xxx_hs_insert_irq_swch(struct wcd9xxx_mbhc *mbhc, |
| 2108 | bool is_removal) |
| 2109 | { |
| 2110 | if (!is_removal) { |
| 2111 | pr_debug("%s: MIC trigger insertion interrupt\n", __func__); |
| 2112 | |
| 2113 | rmb(); |
| 2114 | if (mbhc->lpi_enabled) |
| 2115 | msleep(100); |
| 2116 | |
| 2117 | rmb(); |
| 2118 | if (!mbhc->lpi_enabled) { |
| 2119 | pr_debug("%s: lpi is disabled\n", __func__); |
| 2120 | } else if (!wcd9xxx_swch_level_remove(mbhc)) { |
| 2121 | pr_debug("%s: Valid insertion, detect plug type\n", |
| 2122 | __func__); |
| 2123 | wcd9xxx_mbhc_decide_swch_plug(mbhc); |
| 2124 | } else { |
| 2125 | pr_debug("%s: Invalid insertion stop plug detection\n", |
| 2126 | __func__); |
| 2127 | } |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2128 | } else if (mbhc->mbhc_cfg->detect_extn_cable) { |
| 2129 | pr_debug("%s: Removal\n", __func__); |
| 2130 | if (!wcd9xxx_swch_level_remove(mbhc)) { |
| 2131 | /* |
| 2132 | * Switch indicates, something is still inserted. |
| 2133 | * This could be extension cable i.e. headset is |
| 2134 | * removed from extension cable. |
| 2135 | */ |
| 2136 | /* cancel detect plug */ |
| 2137 | wcd9xxx_cancel_hs_detect_plug(mbhc, |
| 2138 | &mbhc->correct_plug_swch); |
| 2139 | wcd9xxx_mbhc_decide_swch_plug(mbhc); |
| 2140 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2141 | } else { |
| 2142 | pr_err("%s: Switch IRQ used, invalid MBHC Removal\n", __func__); |
| 2143 | } |
| 2144 | } |
| 2145 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2146 | static bool is_valid_mic_voltage(struct wcd9xxx_mbhc *mbhc, s32 mic_mv, |
| 2147 | bool cs_enable) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2148 | { |
| 2149 | const struct wcd9xxx_mbhc_plug_type_cfg *plug_type = |
| 2150 | WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
| 2151 | const s16 v_hs_max = wcd9xxx_get_current_v_hs_max(mbhc); |
| 2152 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2153 | if (cs_enable) |
| 2154 | return ((mic_mv > WCD9XXX_V_CS_NO_MIC) && |
| 2155 | (mic_mv < WCD9XXX_V_CS_HS_MAX)) ? true : false; |
| 2156 | else |
| 2157 | return (!(mic_mv > WCD9XXX_MEAS_INVALD_RANGE_LOW_MV && |
| 2158 | mic_mv < WCD9XXX_MEAS_INVALD_RANGE_HIGH_MV) && |
| 2159 | (mic_mv > plug_type->v_no_mic) && |
| 2160 | (mic_mv < v_hs_max)) ? true : false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2161 | } |
| 2162 | |
| 2163 | /* |
| 2164 | * called under codec_resource_lock acquisition |
| 2165 | * returns true if mic voltage range is back to normal insertion |
| 2166 | * returns false either if timedout or removed |
| 2167 | */ |
| 2168 | static bool wcd9xxx_hs_remove_settle(struct wcd9xxx_mbhc *mbhc) |
| 2169 | { |
| 2170 | int i; |
| 2171 | bool timedout, settled = false; |
| 2172 | s32 mic_mv[NUM_DCE_PLUG_DETECT]; |
| 2173 | short mb_v[NUM_DCE_PLUG_DETECT]; |
| 2174 | unsigned long retry = 0, timeout; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2175 | bool cs_enable; |
| 2176 | |
| 2177 | cs_enable = ((mbhc->mbhc_cfg->cs_enable_flags & |
| 2178 | (1 << MBHC_CS_ENABLE_REMOVAL)) != 0); |
| 2179 | |
| 2180 | if (cs_enable) |
| 2181 | wcd9xxx_turn_onoff_current_source(mbhc, true, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2182 | |
| 2183 | timeout = jiffies + msecs_to_jiffies(HS_DETECT_PLUG_TIME_MS); |
| 2184 | while (!(timedout = time_after(jiffies, timeout))) { |
| 2185 | retry++; |
| 2186 | if (wcd9xxx_swch_level_remove(mbhc)) { |
| 2187 | pr_debug("%s: Switch indicates removal\n", __func__); |
| 2188 | break; |
| 2189 | } |
| 2190 | |
| 2191 | if (retry > 1) |
| 2192 | msleep(250); |
| 2193 | else |
| 2194 | msleep(50); |
| 2195 | |
| 2196 | if (wcd9xxx_swch_level_remove(mbhc)) { |
| 2197 | pr_debug("%s: Switch indicates removal\n", __func__); |
| 2198 | break; |
| 2199 | } |
| 2200 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2201 | if (cs_enable) { |
| 2202 | for (i = 0; i < NUM_DCE_PLUG_DETECT; i++) { |
| 2203 | mb_v[i] = __wcd9xxx_codec_sta_dce(mbhc, 1, |
| 2204 | true, true); |
| 2205 | mic_mv[i] = __wcd9xxx_codec_sta_dce_v(mbhc, |
| 2206 | true, |
| 2207 | mb_v[i], |
| 2208 | mbhc->mbhc_data.dce_nsc_cs_z, |
| 2209 | (u32)VDDIO_MICBIAS_MV); |
| 2210 | pr_debug("%s : DCE run %lu, mic_mv = %d(%x)\n", |
| 2211 | __func__, retry, mic_mv[i], mb_v[i]); |
| 2212 | } |
| 2213 | } else { |
| 2214 | for (i = 0; i < NUM_DCE_PLUG_DETECT; i++) { |
| 2215 | mb_v[i] = wcd9xxx_codec_sta_dce(mbhc, 1, |
| 2216 | true); |
| 2217 | mic_mv[i] = wcd9xxx_codec_sta_dce_v(mbhc, 1, |
| 2218 | mb_v[i]); |
| 2219 | pr_debug("%s : DCE run %lu, mic_mv = %d(%x)\n", |
| 2220 | __func__, retry, mic_mv[i], |
| 2221 | mb_v[i]); |
| 2222 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2223 | } |
| 2224 | |
| 2225 | if (wcd9xxx_swch_level_remove(mbhc)) { |
| 2226 | pr_debug("%s: Switcn indicates removal\n", __func__); |
| 2227 | break; |
| 2228 | } |
| 2229 | |
| 2230 | if (mbhc->current_plug == PLUG_TYPE_NONE) { |
| 2231 | pr_debug("%s : headset/headphone is removed\n", |
| 2232 | __func__); |
| 2233 | break; |
| 2234 | } |
| 2235 | |
| 2236 | for (i = 0; i < NUM_DCE_PLUG_DETECT; i++) |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2237 | if (!is_valid_mic_voltage(mbhc, mic_mv[i], cs_enable)) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2238 | break; |
| 2239 | |
| 2240 | if (i == NUM_DCE_PLUG_DETECT) { |
| 2241 | pr_debug("%s: MIC voltage settled\n", __func__); |
| 2242 | settled = true; |
| 2243 | msleep(200); |
| 2244 | break; |
| 2245 | } |
| 2246 | } |
| 2247 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2248 | if (cs_enable) |
| 2249 | wcd9xxx_turn_onoff_current_source(mbhc, false, false); |
| 2250 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2251 | if (timedout) |
| 2252 | pr_debug("%s: Microphone did not settle in %d seconds\n", |
| 2253 | __func__, HS_DETECT_PLUG_TIME_MS); |
| 2254 | return settled; |
| 2255 | } |
| 2256 | |
| 2257 | /* called only from interrupt which is under codec_resource_lock acquisition */ |
| 2258 | static void wcd9xxx_hs_remove_irq_swch(struct wcd9xxx_mbhc *mbhc) |
| 2259 | { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2260 | pr_debug("%s: enter\n", __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2261 | if (wcd9xxx_hs_remove_settle(mbhc)) |
| 2262 | wcd9xxx_start_hs_polling(mbhc); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2263 | pr_debug("%s: leave\n", __func__); |
| 2264 | } |
| 2265 | |
| 2266 | /* called only from interrupt which is under codec_resource_lock acquisition */ |
| 2267 | static void wcd9xxx_hs_remove_irq_noswch(struct wcd9xxx_mbhc *mbhc) |
| 2268 | { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2269 | s16 dce, dcez; |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2270 | unsigned long timeout; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2271 | bool removed = true; |
| 2272 | struct snd_soc_codec *codec = mbhc->codec; |
| 2273 | const struct wcd9xxx_mbhc_general_cfg *generic = |
| 2274 | WCD9XXX_MBHC_CAL_GENERAL_PTR(mbhc->mbhc_cfg->calibration); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2275 | bool cs_enable; |
| 2276 | s16 cur_v_ins_h; |
| 2277 | u32 mb_mv; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2278 | |
| 2279 | pr_debug("%s: enter\n", __func__); |
| 2280 | if (mbhc->current_plug != PLUG_TYPE_HEADSET) { |
| 2281 | pr_debug("%s(): Headset is not inserted, ignore removal\n", |
| 2282 | __func__); |
| 2283 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, |
| 2284 | 0x08, 0x08); |
| 2285 | return; |
| 2286 | } |
| 2287 | |
| 2288 | usleep_range(generic->t_shutdown_plug_rem, |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2289 | generic->t_shutdown_plug_rem); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2290 | |
Phani Kumar Uppalapati | 4dce16b | 2013-08-28 16:22:49 -0700 | [diff] [blame] | 2291 | /* If micbias is enabled, don't enable current source */ |
| 2292 | cs_enable = (((mbhc->mbhc_cfg->cs_enable_flags & |
| 2293 | (1 << MBHC_CS_ENABLE_REMOVAL)) != 0) && |
| 2294 | (!(snd_soc_read(codec, |
| 2295 | mbhc->mbhc_bias_regs.ctl_reg) & 0x80))); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2296 | if (cs_enable) |
| 2297 | wcd9xxx_turn_onoff_current_source(mbhc, true, false); |
| 2298 | |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2299 | timeout = jiffies + msecs_to_jiffies(FAKE_REMOVAL_MIN_PERIOD_MS); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2300 | do { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2301 | if (cs_enable) { |
| 2302 | dce = __wcd9xxx_codec_sta_dce(mbhc, 1, true, true); |
| 2303 | dcez = mbhc->mbhc_data.dce_nsc_cs_z; |
| 2304 | mb_mv = VDDIO_MICBIAS_MV; |
| 2305 | } else { |
| 2306 | dce = wcd9xxx_codec_sta_dce(mbhc, 1, true); |
| 2307 | dcez = mbhc->mbhc_data.dce_z; |
| 2308 | mb_mv = mbhc->mbhc_data.micb_mv; |
| 2309 | } |
| 2310 | |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2311 | pr_debug("%s: DCE 0x%x,%d\n", __func__, dce, |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2312 | __wcd9xxx_codec_sta_dce_v(mbhc, true, dce, |
| 2313 | dcez, mb_mv)); |
| 2314 | |
| 2315 | cur_v_ins_h = cs_enable ? (s16) mbhc->mbhc_data.v_cs_ins_h : |
| 2316 | (wcd9xxx_get_current_v(mbhc, |
| 2317 | WCD9XXX_CURRENT_V_INS_H)); |
| 2318 | |
| 2319 | if (dce < cur_v_ins_h) { |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2320 | removed = false; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2321 | break; |
| 2322 | } |
Joonwoo Park | 50ae051 | 2013-06-04 16:53:12 -0700 | [diff] [blame] | 2323 | } while (!time_after(jiffies, timeout)); |
| 2324 | pr_debug("%s: headset %sactually removed\n", __func__, |
| 2325 | removed ? "" : "not "); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2326 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2327 | if (cs_enable) |
| 2328 | wcd9xxx_turn_onoff_current_source(mbhc, false, false); |
| 2329 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2330 | if (removed) { |
| 2331 | if (mbhc->mbhc_cfg->detect_extn_cable) { |
| 2332 | if (!wcd9xxx_swch_level_remove(mbhc)) { |
| 2333 | /* |
| 2334 | * extension cable is still plugged in |
| 2335 | * report it as LINEOUT device |
| 2336 | */ |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 2337 | if (mbhc->hph_status == SND_JACK_HEADSET) |
| 2338 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, |
| 2339 | false); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2340 | wcd9xxx_report_plug(mbhc, 1, SND_JACK_LINEOUT); |
| 2341 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2342 | wcd9xxx_enable_hs_detect(mbhc, 1, |
| 2343 | MBHC_USE_MB_TRIGGER, |
| 2344 | false); |
| 2345 | } |
| 2346 | } else { |
| 2347 | /* Cancel possibly running hs_detect_work */ |
| 2348 | wcd9xxx_cancel_hs_detect_plug(mbhc, |
| 2349 | &mbhc->correct_plug_noswch); |
| 2350 | /* |
| 2351 | * If this removal is not false, first check the micbias |
| 2352 | * switch status and switch it to LDOH if it is already |
| 2353 | * switched to VDDIO. |
| 2354 | */ |
| 2355 | wcd9xxx_switch_micbias(mbhc, 0); |
| 2356 | |
| 2357 | wcd9xxx_report_plug(mbhc, 0, SND_JACK_HEADSET); |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 2358 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, false); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2359 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2360 | wcd9xxx_enable_hs_detect(mbhc, 1, MBHC_USE_MB_TRIGGER | |
| 2361 | MBHC_USE_HPHL_TRIGGER, |
| 2362 | true); |
| 2363 | } |
| 2364 | } else { |
| 2365 | wcd9xxx_start_hs_polling(mbhc); |
| 2366 | } |
| 2367 | pr_debug("%s: leave\n", __func__); |
| 2368 | } |
| 2369 | |
| 2370 | /* called only from interrupt which is under codec_resource_lock acquisition */ |
| 2371 | static void wcd9xxx_hs_insert_irq_extn(struct wcd9xxx_mbhc *mbhc, |
| 2372 | bool is_mb_trigger) |
| 2373 | { |
| 2374 | /* Cancel possibly running hs_detect_work */ |
| 2375 | wcd9xxx_cancel_hs_detect_plug(mbhc, &mbhc->correct_plug_swch); |
| 2376 | |
| 2377 | if (is_mb_trigger) { |
| 2378 | pr_debug("%s: Waiting for Headphone left trigger\n", __func__); |
| 2379 | wcd9xxx_enable_hs_detect(mbhc, 1, MBHC_USE_HPHL_TRIGGER, false); |
| 2380 | } else { |
| 2381 | pr_debug("%s: HPHL trigger received, detecting plug type\n", |
| 2382 | __func__); |
| 2383 | wcd9xxx_mbhc_detect_plug_type(mbhc); |
| 2384 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2385 | } |
| 2386 | |
| 2387 | static irqreturn_t wcd9xxx_hs_remove_irq(int irq, void *data) |
| 2388 | { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2389 | struct wcd9xxx_mbhc *mbhc = data; |
| 2390 | |
| 2391 | pr_debug("%s: enter, removal interrupt\n", __func__); |
| 2392 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 2393 | /* |
| 2394 | * While we don't know whether MIC is there or not, let the resmgr know |
| 2395 | * so micbias can be disabled temporarily |
| 2396 | */ |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 2397 | if (mbhc->current_plug == PLUG_TYPE_HEADSET) { |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 2398 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2399 | WCD9XXX_COND_HPH_MIC, false); |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 2400 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2401 | WCD9XXX_COND_HPH, false); |
| 2402 | } else if (mbhc->current_plug == PLUG_TYPE_HEADPHONE) { |
| 2403 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2404 | WCD9XXX_COND_HPH, false); |
| 2405 | } |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 2406 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2407 | if (mbhc->mbhc_cfg->detect_extn_cable && |
| 2408 | !wcd9xxx_swch_level_remove(mbhc)) |
| 2409 | wcd9xxx_hs_remove_irq_noswch(mbhc); |
| 2410 | else |
| 2411 | wcd9xxx_hs_remove_irq_swch(mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2412 | |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 2413 | if (mbhc->current_plug == PLUG_TYPE_HEADSET) { |
| 2414 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2415 | WCD9XXX_COND_HPH, true); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 2416 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2417 | WCD9XXX_COND_HPH_MIC, true); |
Joonwoo Park | af21f03 | 2013-03-05 18:07:40 -0800 | [diff] [blame] | 2418 | } else if (mbhc->current_plug == PLUG_TYPE_HEADPHONE) { |
| 2419 | wcd9xxx_resmgr_cond_update_cond(mbhc->resmgr, |
| 2420 | WCD9XXX_COND_HPH, true); |
| 2421 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2422 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2423 | |
| 2424 | return IRQ_HANDLED; |
| 2425 | } |
| 2426 | |
| 2427 | static irqreturn_t wcd9xxx_hs_insert_irq(int irq, void *data) |
| 2428 | { |
| 2429 | bool is_mb_trigger, is_removal; |
| 2430 | struct wcd9xxx_mbhc *mbhc = data; |
| 2431 | struct snd_soc_codec *codec = mbhc->codec; |
| 2432 | |
| 2433 | pr_debug("%s: enter\n", __func__); |
| 2434 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 2435 | wcd9xxx_disable_irq(mbhc->resmgr->core_res, mbhc->intr_ids->insertion); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2436 | |
| 2437 | is_mb_trigger = !!(snd_soc_read(codec, mbhc->mbhc_bias_regs.mbhc_reg) & |
| 2438 | 0x10); |
| 2439 | is_removal = !!(snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_INT_CTL) & 0x02); |
| 2440 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_INT_CTL, 0x03, 0x00); |
| 2441 | |
| 2442 | /* Turn off both HPH and MIC line schmitt triggers */ |
| 2443 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x90, 0x00); |
| 2444 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x13, 0x00); |
| 2445 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x00); |
| 2446 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2447 | if (mbhc->mbhc_cfg->detect_extn_cable && |
| 2448 | mbhc->current_plug == PLUG_TYPE_HIGH_HPH) |
| 2449 | wcd9xxx_hs_insert_irq_extn(mbhc, is_mb_trigger); |
| 2450 | else |
| 2451 | wcd9xxx_hs_insert_irq_swch(mbhc, is_removal); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2452 | |
| 2453 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2454 | return IRQ_HANDLED; |
| 2455 | } |
| 2456 | |
| 2457 | static void wcd9xxx_btn_lpress_fn(struct work_struct *work) |
| 2458 | { |
| 2459 | struct delayed_work *dwork; |
| 2460 | short bias_value; |
| 2461 | int dce_mv, sta_mv; |
| 2462 | struct wcd9xxx_mbhc *mbhc; |
| 2463 | |
| 2464 | pr_debug("%s:\n", __func__); |
| 2465 | |
| 2466 | dwork = to_delayed_work(work); |
| 2467 | mbhc = container_of(dwork, struct wcd9xxx_mbhc, mbhc_btn_dwork); |
| 2468 | |
| 2469 | bias_value = wcd9xxx_read_sta_result(mbhc->codec); |
| 2470 | sta_mv = wcd9xxx_codec_sta_dce_v(mbhc, 0, bias_value); |
| 2471 | |
| 2472 | bias_value = wcd9xxx_read_dce_result(mbhc->codec); |
| 2473 | dce_mv = wcd9xxx_codec_sta_dce_v(mbhc, 1, bias_value); |
| 2474 | pr_debug("%s: STA: %d, DCE: %d\n", __func__, sta_mv, dce_mv); |
| 2475 | |
| 2476 | pr_debug("%s: Reporting long button press event\n", __func__); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 2477 | wcd9xxx_jack_report(mbhc, &mbhc->button_jack, mbhc->buttons_pressed, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2478 | mbhc->buttons_pressed); |
| 2479 | |
| 2480 | pr_debug("%s: leave\n", __func__); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2481 | wcd9xxx_unlock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2482 | } |
| 2483 | |
| 2484 | static void wcd9xxx_mbhc_insert_work(struct work_struct *work) |
| 2485 | { |
| 2486 | struct delayed_work *dwork; |
| 2487 | struct wcd9xxx_mbhc *mbhc; |
| 2488 | struct snd_soc_codec *codec; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2489 | struct wcd9xxx_core_resource *core_res; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2490 | |
| 2491 | dwork = to_delayed_work(work); |
| 2492 | mbhc = container_of(dwork, struct wcd9xxx_mbhc, mbhc_insert_dwork); |
| 2493 | codec = mbhc->codec; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2494 | core_res = mbhc->resmgr->core_res; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2495 | |
| 2496 | pr_debug("%s:\n", __func__); |
| 2497 | |
| 2498 | /* Turn off both HPH and MIC line schmitt triggers */ |
| 2499 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 0x90, 0x00); |
| 2500 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x13, 0x00); |
| 2501 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x00); |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 2502 | wcd9xxx_disable_irq_sync(core_res, mbhc->intr_ids->insertion); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2503 | wcd9xxx_mbhc_detect_plug_type(mbhc); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2504 | wcd9xxx_unlock_sleep(core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2505 | } |
| 2506 | |
| 2507 | static bool wcd9xxx_mbhc_fw_validate(const struct firmware *fw) |
| 2508 | { |
| 2509 | u32 cfg_offset; |
| 2510 | struct wcd9xxx_mbhc_imped_detect_cfg *imped_cfg; |
| 2511 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_cfg; |
| 2512 | |
| 2513 | if (fw->size < WCD9XXX_MBHC_CAL_MIN_SIZE) |
| 2514 | return false; |
| 2515 | |
| 2516 | /* |
| 2517 | * Previous check guarantees that there is enough fw data up |
| 2518 | * to num_btn |
| 2519 | */ |
| 2520 | btn_cfg = WCD9XXX_MBHC_CAL_BTN_DET_PTR(fw->data); |
| 2521 | cfg_offset = (u32) ((void *) btn_cfg - (void *) fw->data); |
| 2522 | if (fw->size < (cfg_offset + WCD9XXX_MBHC_CAL_BTN_SZ(btn_cfg))) |
| 2523 | return false; |
| 2524 | |
| 2525 | /* |
| 2526 | * Previous check guarantees that there is enough fw data up |
| 2527 | * to start of impedance detection configuration |
| 2528 | */ |
| 2529 | imped_cfg = WCD9XXX_MBHC_CAL_IMPED_DET_PTR(fw->data); |
| 2530 | cfg_offset = (u32) ((void *) imped_cfg - (void *) fw->data); |
| 2531 | |
| 2532 | if (fw->size < (cfg_offset + WCD9XXX_MBHC_CAL_IMPED_MIN_SZ)) |
| 2533 | return false; |
| 2534 | |
| 2535 | if (fw->size < (cfg_offset + WCD9XXX_MBHC_CAL_IMPED_SZ(imped_cfg))) |
| 2536 | return false; |
| 2537 | |
| 2538 | return true; |
| 2539 | } |
| 2540 | |
| 2541 | static u16 wcd9xxx_codec_v_sta_dce(struct wcd9xxx_mbhc *mbhc, |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2542 | enum meas_type dce, s16 vin_mv, |
| 2543 | bool cs_enable) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2544 | { |
| 2545 | s16 diff, zero; |
| 2546 | u32 mb_mv, in; |
| 2547 | u16 value; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2548 | s16 dce_z; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2549 | |
| 2550 | mb_mv = mbhc->mbhc_data.micb_mv; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2551 | dce_z = mbhc->mbhc_data.dce_z; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2552 | |
| 2553 | if (mb_mv == 0) { |
| 2554 | pr_err("%s: Mic Bias voltage is set to zero\n", __func__); |
| 2555 | return -EINVAL; |
| 2556 | } |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2557 | if (cs_enable) { |
| 2558 | mb_mv = VDDIO_MICBIAS_MV; |
| 2559 | dce_z = mbhc->mbhc_data.dce_nsc_cs_z; |
| 2560 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2561 | |
| 2562 | if (dce) { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2563 | diff = (mbhc->mbhc_data.dce_mb) - (dce_z); |
| 2564 | zero = (dce_z); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2565 | } else { |
| 2566 | diff = (mbhc->mbhc_data.sta_mb) - (mbhc->mbhc_data.sta_z); |
| 2567 | zero = (mbhc->mbhc_data.sta_z); |
| 2568 | } |
| 2569 | in = (u32) diff * vin_mv; |
| 2570 | |
| 2571 | value = (u16) (in / mb_mv) + zero; |
| 2572 | return value; |
| 2573 | } |
| 2574 | |
| 2575 | static void wcd9xxx_mbhc_calc_thres(struct wcd9xxx_mbhc *mbhc) |
| 2576 | { |
| 2577 | struct snd_soc_codec *codec; |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2578 | s16 adj_v_hs_max; |
| 2579 | s16 btn_mv = 0, btn_mv_sta[MBHC_V_IDX_NUM], btn_mv_dce[MBHC_V_IDX_NUM]; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2580 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 2581 | struct wcd9xxx_mbhc_plug_type_cfg *plug_type; |
| 2582 | u16 *btn_high; |
| 2583 | int i; |
| 2584 | |
| 2585 | pr_debug("%s: enter\n", __func__); |
| 2586 | codec = mbhc->codec; |
| 2587 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 2588 | plug_type = WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration); |
| 2589 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2590 | mbhc->mbhc_data.v_ins_hu[MBHC_V_IDX_CFILT] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2591 | wcd9xxx_codec_v_sta_dce(mbhc, STA, plug_type->v_hs_max, false); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2592 | mbhc->mbhc_data.v_ins_h[MBHC_V_IDX_CFILT] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2593 | wcd9xxx_codec_v_sta_dce(mbhc, DCE, plug_type->v_hs_max, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2594 | |
| 2595 | mbhc->mbhc_data.v_inval_ins_low = FAKE_INS_LOW; |
| 2596 | mbhc->mbhc_data.v_inval_ins_high = FAKE_INS_HIGH; |
| 2597 | |
| 2598 | if (mbhc->mbhc_data.micb_mv != VDDIO_MICBIAS_MV) { |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2599 | adj_v_hs_max = scale_v_micb_vddio(mbhc, plug_type->v_hs_max, |
| 2600 | true); |
| 2601 | mbhc->mbhc_data.v_ins_hu[MBHC_V_IDX_VDDIO] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2602 | wcd9xxx_codec_v_sta_dce(mbhc, STA, adj_v_hs_max, false); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2603 | mbhc->mbhc_data.v_ins_h[MBHC_V_IDX_VDDIO] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2604 | wcd9xxx_codec_v_sta_dce(mbhc, DCE, adj_v_hs_max, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2605 | mbhc->mbhc_data.v_inval_ins_low = |
| 2606 | scale_v_micb_vddio(mbhc, mbhc->mbhc_data.v_inval_ins_low, |
| 2607 | false); |
| 2608 | mbhc->mbhc_data.v_inval_ins_high = |
| 2609 | scale_v_micb_vddio(mbhc, mbhc->mbhc_data.v_inval_ins_high, |
| 2610 | false); |
| 2611 | } |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2612 | mbhc->mbhc_data.v_cs_ins_h = wcd9xxx_codec_v_sta_dce(mbhc, DCE, |
| 2613 | WCD9XXX_V_CS_HS_MAX, |
| 2614 | true); |
| 2615 | pr_debug("%s: v_ins_h for current source: 0x%x\n", __func__, |
| 2616 | mbhc->mbhc_data.v_cs_ins_h); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2617 | |
| 2618 | btn_high = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, |
| 2619 | MBHC_BTN_DET_V_BTN_HIGH); |
| 2620 | for (i = 0; i < btn_det->num_btn; i++) |
| 2621 | btn_mv = btn_high[i] > btn_mv ? btn_high[i] : btn_mv; |
| 2622 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2623 | btn_mv_sta[MBHC_V_IDX_CFILT] = btn_mv + btn_det->v_btn_press_delta_sta; |
| 2624 | btn_mv_dce[MBHC_V_IDX_CFILT] = btn_mv + btn_det->v_btn_press_delta_cic; |
| 2625 | btn_mv_sta[MBHC_V_IDX_VDDIO] = |
| 2626 | scale_v_micb_vddio(mbhc, btn_mv_sta[MBHC_V_IDX_CFILT], true); |
| 2627 | btn_mv_dce[MBHC_V_IDX_VDDIO] = |
| 2628 | scale_v_micb_vddio(mbhc, btn_mv_dce[MBHC_V_IDX_CFILT], true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2629 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2630 | mbhc->mbhc_data.v_b1_hu[MBHC_V_IDX_CFILT] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2631 | wcd9xxx_codec_v_sta_dce(mbhc, STA, btn_mv_sta[MBHC_V_IDX_CFILT], |
| 2632 | false); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2633 | mbhc->mbhc_data.v_b1_h[MBHC_V_IDX_CFILT] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2634 | wcd9xxx_codec_v_sta_dce(mbhc, DCE, btn_mv_dce[MBHC_V_IDX_CFILT], |
| 2635 | false); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2636 | mbhc->mbhc_data.v_b1_hu[MBHC_V_IDX_VDDIO] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2637 | wcd9xxx_codec_v_sta_dce(mbhc, STA, btn_mv_sta[MBHC_V_IDX_VDDIO], |
| 2638 | false); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2639 | mbhc->mbhc_data.v_b1_h[MBHC_V_IDX_VDDIO] = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2640 | wcd9xxx_codec_v_sta_dce(mbhc, DCE, btn_mv_dce[MBHC_V_IDX_VDDIO], |
| 2641 | false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2642 | |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2643 | mbhc->mbhc_data.v_brh[MBHC_V_IDX_CFILT] = |
| 2644 | mbhc->mbhc_data.v_b1_h[MBHC_V_IDX_CFILT]; |
| 2645 | mbhc->mbhc_data.v_brh[MBHC_V_IDX_VDDIO] = |
| 2646 | mbhc->mbhc_data.v_b1_h[MBHC_V_IDX_VDDIO]; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2647 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2648 | mbhc->mbhc_data.v_brl = BUTTON_MIN; |
| 2649 | |
| 2650 | mbhc->mbhc_data.v_no_mic = |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2651 | wcd9xxx_codec_v_sta_dce(mbhc, STA, plug_type->v_no_mic, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2652 | pr_debug("%s: leave\n", __func__); |
| 2653 | } |
| 2654 | |
| 2655 | static void wcd9xxx_onoff_ext_mclk(struct wcd9xxx_mbhc *mbhc, bool on) |
| 2656 | { |
| 2657 | /* |
| 2658 | * XXX: {codec}_mclk_enable holds WCD9XXX_BCL_LOCK, |
| 2659 | * therefore wcd9xxx_onoff_ext_mclk caller SHOULDN'T hold |
| 2660 | * WCD9XXX_BCL_LOCK when it calls wcd9xxx_onoff_ext_mclk() |
| 2661 | */ |
| 2662 | mbhc->mbhc_cfg->mclk_cb_fn(mbhc->codec, on, false); |
| 2663 | } |
| 2664 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2665 | /* |
| 2666 | * Mic Bias Enable Decision |
| 2667 | * Return true if high_hph_cnt is a power of 2 (!= 2) |
| 2668 | * otherwise return false |
| 2669 | */ |
| 2670 | static bool wcd9xxx_mbhc_enable_mb_decision(int high_hph_cnt) |
| 2671 | { |
| 2672 | return (high_hph_cnt > 2) && !(high_hph_cnt & (high_hph_cnt - 1)); |
| 2673 | } |
| 2674 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2675 | static void wcd9xxx_correct_swch_plug(struct work_struct *work) |
| 2676 | { |
| 2677 | struct wcd9xxx_mbhc *mbhc; |
| 2678 | struct snd_soc_codec *codec; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2679 | enum wcd9xxx_mbhc_plug_type plug_type = PLUG_TYPE_INVALID; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2680 | unsigned long timeout; |
| 2681 | int retry = 0, pt_gnd_mic_swap_cnt = 0; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2682 | int highhph_cnt = 0; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2683 | bool correction = false; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2684 | bool current_source_enable; |
| 2685 | bool wrk_complete = true, highhph = false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2686 | |
| 2687 | pr_debug("%s: enter\n", __func__); |
| 2688 | |
| 2689 | mbhc = container_of(work, struct wcd9xxx_mbhc, correct_plug_swch); |
| 2690 | codec = mbhc->codec; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2691 | current_source_enable = ((mbhc->mbhc_cfg->cs_enable_flags & |
| 2692 | (1 << MBHC_CS_ENABLE_POLLING)) != 0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2693 | |
| 2694 | wcd9xxx_onoff_ext_mclk(mbhc, true); |
| 2695 | |
| 2696 | /* |
| 2697 | * Keep override on during entire plug type correction work. |
| 2698 | * |
| 2699 | * This is okay under the assumption that any switch irqs which use |
| 2700 | * MBHC block cancel and sync this work so override is off again |
| 2701 | * prior to switch interrupt handler's MBHC block usage. |
| 2702 | * Also while this correction work is running, we can guarantee |
| 2703 | * DAPM doesn't use any MBHC block as this work only runs with |
| 2704 | * headphone detection. |
| 2705 | */ |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2706 | if (current_source_enable) |
| 2707 | wcd9xxx_turn_onoff_current_source(mbhc, true, |
| 2708 | false); |
| 2709 | else |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2710 | wcd9xxx_turn_onoff_override(mbhc, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2711 | |
| 2712 | timeout = jiffies + msecs_to_jiffies(HS_DETECT_PLUG_TIME_MS); |
| 2713 | while (!time_after(jiffies, timeout)) { |
| 2714 | ++retry; |
| 2715 | rmb(); |
| 2716 | if (mbhc->hs_detect_work_stop) { |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2717 | wrk_complete = false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2718 | pr_debug("%s: stop requested\n", __func__); |
| 2719 | break; |
| 2720 | } |
| 2721 | |
| 2722 | msleep(HS_DETECT_PLUG_INERVAL_MS); |
| 2723 | if (wcd9xxx_swch_level_remove(mbhc)) { |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2724 | wrk_complete = false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2725 | pr_debug("%s: Switch level is low\n", __func__); |
| 2726 | break; |
| 2727 | } |
| 2728 | |
| 2729 | /* can race with removal interrupt */ |
| 2730 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2731 | if (current_source_enable) |
| 2732 | plug_type = wcd9xxx_codec_cs_get_plug_type(mbhc, |
| 2733 | highhph); |
| 2734 | else |
| 2735 | plug_type = wcd9xxx_codec_get_plug_type(mbhc, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2736 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2737 | |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2738 | pr_debug("%s: attempt(%d) current_plug(%d) new_plug(%d)\n", |
| 2739 | __func__, retry, mbhc->current_plug, plug_type); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2740 | |
| 2741 | highhph_cnt = (plug_type == PLUG_TYPE_HIGH_HPH) ? |
| 2742 | (highhph_cnt + 1) : |
| 2743 | 0; |
| 2744 | highhph = wcd9xxx_mbhc_enable_mb_decision(highhph_cnt); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2745 | if (plug_type == PLUG_TYPE_INVALID) { |
| 2746 | pr_debug("Invalid plug in attempt # %d\n", retry); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2747 | if (!mbhc->mbhc_cfg->detect_extn_cable && |
| 2748 | retry == NUM_ATTEMPTS_TO_REPORT && |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2749 | mbhc->current_plug == PLUG_TYPE_NONE) { |
| 2750 | wcd9xxx_report_plug(mbhc, 1, |
| 2751 | SND_JACK_HEADPHONE); |
| 2752 | } |
| 2753 | } else if (plug_type == PLUG_TYPE_HEADPHONE) { |
| 2754 | pr_debug("Good headphone detected, continue polling\n"); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2755 | if (mbhc->mbhc_cfg->detect_extn_cable) { |
| 2756 | if (mbhc->current_plug != plug_type) |
| 2757 | wcd9xxx_report_plug(mbhc, 1, |
| 2758 | SND_JACK_HEADPHONE); |
| 2759 | } else if (mbhc->current_plug == PLUG_TYPE_NONE) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2760 | wcd9xxx_report_plug(mbhc, 1, |
| 2761 | SND_JACK_HEADPHONE); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2762 | } |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2763 | } else if (plug_type == PLUG_TYPE_HIGH_HPH) { |
| 2764 | pr_debug("%s: High HPH detected, continue polling\n", |
| 2765 | __func__); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2766 | } else { |
| 2767 | if (plug_type == PLUG_TYPE_GND_MIC_SWAP) { |
| 2768 | pt_gnd_mic_swap_cnt++; |
| 2769 | if (pt_gnd_mic_swap_cnt < |
| 2770 | GND_MIC_SWAP_THRESHOLD) |
| 2771 | continue; |
| 2772 | else if (pt_gnd_mic_swap_cnt > |
| 2773 | GND_MIC_SWAP_THRESHOLD) { |
| 2774 | /* |
| 2775 | * This is due to GND/MIC switch didn't |
| 2776 | * work, Report unsupported plug |
| 2777 | */ |
| 2778 | } else if (mbhc->mbhc_cfg->swap_gnd_mic) { |
| 2779 | /* |
| 2780 | * if switch is toggled, check again, |
| 2781 | * otherwise report unsupported plug |
| 2782 | */ |
| 2783 | if (mbhc->mbhc_cfg->swap_gnd_mic(codec)) |
| 2784 | continue; |
| 2785 | } |
| 2786 | } else |
| 2787 | pt_gnd_mic_swap_cnt = 0; |
| 2788 | |
| 2789 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2790 | /* Turn off override/current source */ |
| 2791 | if (current_source_enable) |
| 2792 | wcd9xxx_turn_onoff_current_source(mbhc, false, |
| 2793 | false); |
| 2794 | else |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2795 | wcd9xxx_turn_onoff_override(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2796 | /* |
| 2797 | * The valid plug also includes PLUG_TYPE_GND_MIC_SWAP |
| 2798 | */ |
| 2799 | wcd9xxx_find_plug_and_report(mbhc, plug_type); |
| 2800 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2801 | pr_debug("Attempt %d found correct plug %d\n", retry, |
| 2802 | plug_type); |
| 2803 | correction = true; |
| 2804 | break; |
| 2805 | } |
| 2806 | } |
| 2807 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2808 | highhph = false; |
| 2809 | if (wrk_complete && plug_type == PLUG_TYPE_HIGH_HPH) { |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2810 | pr_debug("%s: polling is done, still HPH, so enabling MIC trigger\n", |
| 2811 | __func__); |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2812 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2813 | wcd9xxx_find_plug_and_report(mbhc, plug_type); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2814 | highhph = true; |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2815 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
Phani Kumar Uppalapati | da7c7ab | 2013-04-10 16:38:19 -0700 | [diff] [blame] | 2816 | } |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 2817 | |
| 2818 | if (!correction && current_source_enable) |
| 2819 | wcd9xxx_turn_onoff_current_source(mbhc, false, highhph); |
| 2820 | else if (!correction) |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2821 | wcd9xxx_turn_onoff_override(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2822 | |
| 2823 | wcd9xxx_onoff_ext_mclk(mbhc, false); |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2824 | |
| 2825 | if (mbhc->mbhc_cfg->detect_extn_cable) { |
| 2826 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2827 | if ((mbhc->current_plug == PLUG_TYPE_HEADPHONE && |
| 2828 | wrk_complete) || |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2829 | mbhc->current_plug == PLUG_TYPE_GND_MIC_SWAP || |
| 2830 | mbhc->current_plug == PLUG_TYPE_INVALID || |
Phani Kumar Uppalapati | 6396af7 | 2013-06-14 16:37:17 -0700 | [diff] [blame] | 2831 | (plug_type == PLUG_TYPE_INVALID && wrk_complete)) { |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2832 | /* Enable removal detection */ |
| 2833 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2834 | wcd9xxx_enable_hs_detect(mbhc, 0, 0, false); |
| 2835 | } |
| 2836 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2837 | } |
| 2838 | pr_debug("%s: leave current_plug(%d)\n", __func__, mbhc->current_plug); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2839 | /* unlock sleep */ |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2840 | wcd9xxx_unlock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2841 | } |
| 2842 | |
| 2843 | static void wcd9xxx_swch_irq_handler(struct wcd9xxx_mbhc *mbhc) |
| 2844 | { |
| 2845 | bool insert; |
| 2846 | bool is_removed = false; |
| 2847 | struct snd_soc_codec *codec = mbhc->codec; |
| 2848 | |
| 2849 | pr_debug("%s: enter\n", __func__); |
| 2850 | |
| 2851 | mbhc->in_swch_irq_handler = true; |
| 2852 | /* Wait here for debounce time */ |
| 2853 | usleep_range(SWCH_IRQ_DEBOUNCE_TIME_US, SWCH_IRQ_DEBOUNCE_TIME_US); |
| 2854 | |
| 2855 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
| 2856 | |
| 2857 | /* cancel pending button press */ |
| 2858 | if (wcd9xxx_cancel_btn_work(mbhc)) |
| 2859 | pr_debug("%s: button press is canceled\n", __func__); |
| 2860 | |
Santosh Mardi | c82bd36 | 2013-10-25 18:35:29 +0530 | [diff] [blame] | 2861 | /* cancel detect plug */ |
| 2862 | wcd9xxx_cancel_hs_detect_plug(mbhc, |
| 2863 | &mbhc->correct_plug_swch); |
| 2864 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2865 | insert = !wcd9xxx_swch_level_remove(mbhc); |
| 2866 | pr_debug("%s: Current plug type %d, insert %d\n", __func__, |
| 2867 | mbhc->current_plug, insert); |
| 2868 | if ((mbhc->current_plug == PLUG_TYPE_NONE) && insert) { |
| 2869 | mbhc->lpi_enabled = false; |
| 2870 | wmb(); |
| 2871 | |
Phani Kumar Uppalapati | cf2e124 | 2013-10-08 12:27:18 -0700 | [diff] [blame] | 2872 | if ((mbhc->current_plug != PLUG_TYPE_NONE) && |
| 2873 | !(snd_soc_read(codec, WCD9XXX_A_MBHC_INSERT_DETECT) & |
| 2874 | (1 << 1))) |
| 2875 | goto exit; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2876 | |
| 2877 | /* Disable Mic Bias pull down and HPH Switch to GND */ |
| 2878 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, |
| 2879 | 0x00); |
| 2880 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x01, 0x00); |
| 2881 | wcd9xxx_mbhc_detect_plug_type(mbhc); |
| 2882 | } else if ((mbhc->current_plug != PLUG_TYPE_NONE) && !insert) { |
| 2883 | mbhc->lpi_enabled = false; |
| 2884 | wmb(); |
| 2885 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2886 | if (mbhc->current_plug == PLUG_TYPE_HEADPHONE) { |
| 2887 | wcd9xxx_report_plug(mbhc, 0, SND_JACK_HEADPHONE); |
| 2888 | is_removed = true; |
| 2889 | } else if (mbhc->current_plug == PLUG_TYPE_GND_MIC_SWAP) { |
| 2890 | wcd9xxx_report_plug(mbhc, 0, SND_JACK_UNSUPPORTED); |
| 2891 | is_removed = true; |
| 2892 | } else if (mbhc->current_plug == PLUG_TYPE_HEADSET) { |
| 2893 | wcd9xxx_pause_hs_polling(mbhc); |
Yeleswarapu, Nagaradhesh | 3cd4521 | 2013-09-30 21:34:27 +0530 | [diff] [blame] | 2894 | wcd9xxx_mbhc_ctrl_clk_bandgap(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2895 | wcd9xxx_cleanup_hs_polling(mbhc); |
| 2896 | wcd9xxx_report_plug(mbhc, 0, SND_JACK_HEADSET); |
| 2897 | is_removed = true; |
Joonwoo Park | 80a0117 | 2012-10-15 16:05:23 -0700 | [diff] [blame] | 2898 | } else if (mbhc->current_plug == PLUG_TYPE_HIGH_HPH) { |
| 2899 | wcd9xxx_report_plug(mbhc, 0, SND_JACK_LINEOUT); |
| 2900 | is_removed = true; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2901 | } |
| 2902 | |
| 2903 | if (is_removed) { |
Phani Kumar Uppalapati | cfbfa2f | 2013-10-22 15:18:51 -0700 | [diff] [blame] | 2904 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 2905 | 0x00); |
| 2906 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 2907 | 0x02, 0x00); |
| 2908 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2909 | /* Enable Mic Bias pull down and HPH Switch to GND */ |
| 2910 | snd_soc_update_bits(codec, |
| 2911 | mbhc->mbhc_bias_regs.ctl_reg, 0x01, |
| 2912 | 0x01); |
| 2913 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x01, |
| 2914 | 0x01); |
| 2915 | /* Make sure mic trigger is turned off */ |
| 2916 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, |
| 2917 | 0x01, 0x01); |
| 2918 | snd_soc_update_bits(codec, |
| 2919 | mbhc->mbhc_bias_regs.mbhc_reg, |
| 2920 | 0x90, 0x00); |
| 2921 | /* Reset MBHC State Machine */ |
| 2922 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, |
| 2923 | 0x08, 0x08); |
| 2924 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, |
| 2925 | 0x08, 0x00); |
| 2926 | /* Turn off override */ |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 2927 | wcd9xxx_turn_onoff_override(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2928 | } |
| 2929 | } |
Phani Kumar Uppalapati | cf2e124 | 2013-10-08 12:27:18 -0700 | [diff] [blame] | 2930 | exit: |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2931 | mbhc->in_swch_irq_handler = false; |
| 2932 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 2933 | pr_debug("%s: leave\n", __func__); |
| 2934 | } |
| 2935 | |
| 2936 | static irqreturn_t wcd9xxx_mech_plug_detect_irq(int irq, void *data) |
| 2937 | { |
| 2938 | int r = IRQ_HANDLED; |
| 2939 | struct wcd9xxx_mbhc *mbhc = data; |
| 2940 | |
| 2941 | pr_debug("%s: enter\n", __func__); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2942 | if (unlikely(wcd9xxx_lock_sleep(mbhc->resmgr->core_res) == false)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2943 | pr_warn("%s: failed to hold suspend\n", __func__); |
| 2944 | r = IRQ_NONE; |
| 2945 | } else { |
| 2946 | /* Call handler */ |
| 2947 | wcd9xxx_swch_irq_handler(mbhc); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 2948 | wcd9xxx_unlock_sleep(mbhc->resmgr->core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2949 | } |
| 2950 | |
| 2951 | pr_debug("%s: leave %d\n", __func__, r); |
| 2952 | return r; |
| 2953 | } |
| 2954 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 2955 | static int wcd9xxx_is_false_press(struct wcd9xxx_mbhc *mbhc) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2956 | { |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2957 | s16 mb_v; |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 2958 | int i = 0; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2959 | int r = 0; |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2960 | const s16 v_ins_hu = |
| 2961 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_INS_HU); |
| 2962 | const s16 v_ins_h = |
| 2963 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_INS_H); |
| 2964 | const s16 v_b1_hu = |
| 2965 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_HU); |
| 2966 | const s16 v_b1_h = |
| 2967 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_H); |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 2968 | const unsigned long timeout = |
| 2969 | jiffies + msecs_to_jiffies(BTN_RELEASE_DEBOUNCE_TIME_MS); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2970 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 2971 | while (time_before(jiffies, timeout)) { |
| 2972 | /* |
| 2973 | * This function needs to run measurements just few times during |
| 2974 | * release debounce time. Make 1ms interval to avoid |
| 2975 | * unnecessary excessive measurements. |
| 2976 | */ |
| 2977 | usleep_range(1000, 1000 + WCD9XXX_USLEEP_RANGE_MARGIN_US); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2978 | if (i == 0) { |
| 2979 | mb_v = wcd9xxx_codec_sta_dce(mbhc, 0, true); |
| 2980 | pr_debug("%s: STA[0]: %d,%d\n", __func__, mb_v, |
| 2981 | wcd9xxx_codec_sta_dce_v(mbhc, 0, mb_v)); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2982 | if (mb_v < v_b1_hu || mb_v > v_ins_hu) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2983 | r = 1; |
| 2984 | break; |
| 2985 | } |
| 2986 | } else { |
| 2987 | mb_v = wcd9xxx_codec_sta_dce(mbhc, 1, true); |
| 2988 | pr_debug("%s: DCE[%d]: %d,%d\n", __func__, i, mb_v, |
| 2989 | wcd9xxx_codec_sta_dce_v(mbhc, 1, mb_v)); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 2990 | if (mb_v < v_b1_h || mb_v > v_ins_h) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2991 | r = 1; |
| 2992 | break; |
| 2993 | } |
| 2994 | } |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 2995 | i++; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 2996 | } |
| 2997 | |
| 2998 | return r; |
| 2999 | } |
| 3000 | |
| 3001 | /* called under codec_resource_lock acquisition */ |
| 3002 | static int wcd9xxx_determine_button(const struct wcd9xxx_mbhc *mbhc, |
| 3003 | const s32 micmv) |
| 3004 | { |
| 3005 | s16 *v_btn_low, *v_btn_high; |
| 3006 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 3007 | int i, btn = -1; |
| 3008 | |
| 3009 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 3010 | v_btn_low = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, |
| 3011 | MBHC_BTN_DET_V_BTN_LOW); |
| 3012 | v_btn_high = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, |
| 3013 | MBHC_BTN_DET_V_BTN_HIGH); |
| 3014 | |
| 3015 | for (i = 0; i < btn_det->num_btn; i++) { |
| 3016 | if ((v_btn_low[i] <= micmv) && (v_btn_high[i] >= micmv)) { |
| 3017 | btn = i; |
| 3018 | break; |
| 3019 | } |
| 3020 | } |
| 3021 | |
| 3022 | if (btn == -1) |
| 3023 | pr_debug("%s: couldn't find button number for mic mv %d\n", |
| 3024 | __func__, micmv); |
| 3025 | |
| 3026 | return btn; |
| 3027 | } |
| 3028 | |
| 3029 | static int wcd9xxx_get_button_mask(const int btn) |
| 3030 | { |
| 3031 | int mask = 0; |
| 3032 | switch (btn) { |
| 3033 | case 0: |
| 3034 | mask = SND_JACK_BTN_0; |
| 3035 | break; |
| 3036 | case 1: |
| 3037 | mask = SND_JACK_BTN_1; |
| 3038 | break; |
| 3039 | case 2: |
| 3040 | mask = SND_JACK_BTN_2; |
| 3041 | break; |
| 3042 | case 3: |
| 3043 | mask = SND_JACK_BTN_3; |
| 3044 | break; |
| 3045 | case 4: |
| 3046 | mask = SND_JACK_BTN_4; |
| 3047 | break; |
| 3048 | case 5: |
| 3049 | mask = SND_JACK_BTN_5; |
| 3050 | break; |
| 3051 | case 6: |
| 3052 | mask = SND_JACK_BTN_6; |
| 3053 | break; |
| 3054 | case 7: |
| 3055 | mask = SND_JACK_BTN_7; |
| 3056 | break; |
| 3057 | } |
| 3058 | return mask; |
| 3059 | } |
| 3060 | |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3061 | static void wcd9xxx_get_z(struct wcd9xxx_mbhc *mbhc, s16 *dce_z, s16 *sta_z) |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3062 | { |
| 3063 | s16 reg0, reg1; |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3064 | int change; |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3065 | struct snd_soc_codec *codec = mbhc->codec; |
| 3066 | |
| 3067 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 3068 | /* Pull down micbias to ground and disconnect vddio switch */ |
| 3069 | reg0 = snd_soc_read(codec, mbhc->mbhc_bias_regs.ctl_reg); |
| 3070 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x81, 0x1); |
| 3071 | reg1 = snd_soc_read(codec, mbhc->mbhc_bias_regs.mbhc_reg); |
| 3072 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.mbhc_reg, 1 << 7, 0); |
| 3073 | |
| 3074 | /* Disconnect override from micbias */ |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3075 | change = snd_soc_update_bits(codec, WCD9XXX_A_MAD_ANA_CTRL, 1 << 4, |
| 3076 | 1 << 0); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3077 | usleep_range(1000, 1000 + 1000); |
Phani Kumar Uppalapati | bb0ad6e | 2013-10-02 13:08:56 -0700 | [diff] [blame] | 3078 | if (sta_z) { |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3079 | *sta_z = wcd9xxx_codec_sta_dce(mbhc, 0, false); |
Phani Kumar Uppalapati | bb0ad6e | 2013-10-02 13:08:56 -0700 | [diff] [blame] | 3080 | pr_debug("%s: sta_z 0x%x\n", __func__, *sta_z & 0xFFFF); |
| 3081 | } |
| 3082 | if (dce_z) { |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3083 | *dce_z = wcd9xxx_codec_sta_dce(mbhc, 1, false); |
Phani Kumar Uppalapati | bb0ad6e | 2013-10-02 13:08:56 -0700 | [diff] [blame] | 3084 | pr_debug("%s: dce_z 0x%x\n", __func__, *dce_z & 0xFFFF); |
| 3085 | } |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3086 | |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3087 | /* Connect override from micbias */ |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3088 | if (change) |
| 3089 | snd_soc_update_bits(codec, WCD9XXX_A_MAD_ANA_CTRL, 1 << 4, |
| 3090 | 1 << 4); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3091 | /* Disable pull down micbias to ground */ |
| 3092 | snd_soc_write(codec, mbhc->mbhc_bias_regs.mbhc_reg, reg1); |
| 3093 | snd_soc_write(codec, mbhc->mbhc_bias_regs.ctl_reg, reg0); |
| 3094 | } |
| 3095 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3096 | void wcd9xxx_update_z(struct wcd9xxx_mbhc *mbhc) |
| 3097 | { |
| 3098 | const u16 sta_z = mbhc->mbhc_data.sta_z; |
| 3099 | const u16 dce_z = mbhc->mbhc_data.dce_z; |
| 3100 | |
| 3101 | wcd9xxx_get_z(mbhc, &mbhc->mbhc_data.dce_z, &mbhc->mbhc_data.sta_z); |
| 3102 | pr_debug("%s: sta_z 0x%x,dce_z 0x%x -> sta_z 0x%x,dce_z 0x%x\n", |
| 3103 | __func__, sta_z & 0xFFFF, dce_z & 0xFFFF, |
| 3104 | mbhc->mbhc_data.sta_z & 0xFFFF, |
| 3105 | mbhc->mbhc_data.dce_z & 0xFFFF); |
| 3106 | |
| 3107 | wcd9xxx_mbhc_calc_thres(mbhc); |
| 3108 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 3109 | } |
| 3110 | |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3111 | /* |
| 3112 | * wcd9xxx_update_rel_threshold : update mbhc release upper bound threshold |
| 3113 | * to ceilmv + buffer |
| 3114 | */ |
| 3115 | static int wcd9xxx_update_rel_threshold(struct wcd9xxx_mbhc *mbhc, int ceilmv) |
| 3116 | { |
| 3117 | u16 v_brh, v_b1_hu; |
| 3118 | int mv; |
| 3119 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 3120 | void *calibration = mbhc->mbhc_cfg->calibration; |
| 3121 | struct snd_soc_codec *codec = mbhc->codec; |
| 3122 | |
| 3123 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(calibration); |
| 3124 | mv = ceilmv + btn_det->v_btn_press_delta_cic; |
| 3125 | pr_debug("%s: reprogram vb1hu/vbrh to %dmv\n", __func__, mv); |
| 3126 | |
| 3127 | /* update LSB first so mbhc hardware block doesn't see too low value */ |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3128 | v_b1_hu = wcd9xxx_codec_v_sta_dce(mbhc, STA, mv, false); |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3129 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B3_CTL, v_b1_hu & 0xFF); |
| 3130 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B4_CTL, |
| 3131 | (v_b1_hu >> 8) & 0xFF); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3132 | v_brh = wcd9xxx_codec_v_sta_dce(mbhc, DCE, mv, false); |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3133 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B9_CTL, v_brh & 0xFF); |
| 3134 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_VOLT_B10_CTL, |
| 3135 | (v_brh >> 8) & 0xFF); |
| 3136 | return 0; |
| 3137 | } |
| 3138 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3139 | irqreturn_t wcd9xxx_dce_handler(int irq, void *data) |
| 3140 | { |
| 3141 | int i, mask; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3142 | bool vddio; |
| 3143 | u8 mbhc_status; |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3144 | s16 dce_z, sta_z; |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3145 | s32 stamv, stamv_s; |
| 3146 | s16 *v_btn_high; |
| 3147 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3148 | int btn = -1, meas = 0; |
| 3149 | struct wcd9xxx_mbhc *mbhc = data; |
| 3150 | const struct wcd9xxx_mbhc_btn_detect_cfg *d = |
| 3151 | WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 3152 | short btnmeas[d->n_btn_meas + 1]; |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3153 | short dce[d->n_btn_meas + 1], sta; |
| 3154 | s32 mv[d->n_btn_meas + 1], mv_s[d->n_btn_meas + 1]; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3155 | struct snd_soc_codec *codec = mbhc->codec; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3156 | struct wcd9xxx_core_resource *core_res = mbhc->resmgr->core_res; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3157 | int n_btn_meas = d->n_btn_meas; |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3158 | void *calibration = mbhc->mbhc_cfg->calibration; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3159 | |
| 3160 | pr_debug("%s: enter\n", __func__); |
| 3161 | |
| 3162 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
| 3163 | mbhc_status = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_STATUS) & 0x3E; |
| 3164 | |
| 3165 | if (mbhc->mbhc_state == MBHC_STATE_POTENTIAL_RECOVERY) { |
| 3166 | pr_debug("%s: mbhc is being recovered, skip button press\n", |
| 3167 | __func__); |
| 3168 | goto done; |
| 3169 | } |
| 3170 | |
| 3171 | mbhc->mbhc_state = MBHC_STATE_POTENTIAL; |
| 3172 | |
| 3173 | if (!mbhc->polling_active) { |
| 3174 | pr_warn("%s: mbhc polling is not active, skip button press\n", |
| 3175 | __func__); |
| 3176 | goto done; |
| 3177 | } |
| 3178 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3179 | /* If switch nterrupt already kicked in, ignore button press */ |
| 3180 | if (mbhc->in_swch_irq_handler) { |
| 3181 | pr_debug("%s: Swtich level changed, ignore button press\n", |
| 3182 | __func__); |
| 3183 | btn = -1; |
| 3184 | goto done; |
| 3185 | } |
| 3186 | |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 3187 | /* |
| 3188 | * setup internal micbias if codec uses internal micbias for |
| 3189 | * headset detection |
| 3190 | */ |
| 3191 | if (mbhc->mbhc_cfg->use_int_rbias && !mbhc->int_rbias_on) { |
| 3192 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->setup_int_rbias) |
| 3193 | mbhc->mbhc_cb->setup_int_rbias(codec, true); |
| 3194 | else |
| 3195 | pr_err("%s: internal bias requested but codec did not provide callback\n", |
| 3196 | __func__); |
| 3197 | } |
| 3198 | |
| 3199 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3200 | /* Measure scaled HW DCE */ |
| 3201 | vddio = (mbhc->mbhc_data.micb_mv != VDDIO_MICBIAS_MV && |
| 3202 | mbhc->mbhc_micbias_switched); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3203 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3204 | dce_z = mbhc->mbhc_data.dce_z; |
| 3205 | sta_z = mbhc->mbhc_data.sta_z; |
| 3206 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3207 | /* Measure scaled HW STA */ |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3208 | dce[0] = wcd9xxx_read_dce_result(codec); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3209 | sta = wcd9xxx_read_sta_result(codec); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3210 | if (mbhc_status != STATUS_REL_DETECTION) { |
| 3211 | if (mbhc->mbhc_last_resume && |
| 3212 | !time_after(jiffies, mbhc->mbhc_last_resume + HZ)) { |
| 3213 | pr_debug("%s: Button is released after resume\n", |
| 3214 | __func__); |
| 3215 | n_btn_meas = 0; |
| 3216 | } else { |
| 3217 | pr_debug("%s: Button is released without resume", |
| 3218 | __func__); |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3219 | if (mbhc->update_z) { |
| 3220 | wcd9xxx_update_z(mbhc); |
| 3221 | mbhc->update_z = false; |
| 3222 | } |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3223 | stamv = __wcd9xxx_codec_sta_dce_v(mbhc, 0, sta, sta_z, |
| 3224 | mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3225 | if (vddio) |
| 3226 | stamv_s = scale_v_micb_vddio(mbhc, stamv, |
| 3227 | false); |
| 3228 | else |
| 3229 | stamv_s = stamv; |
| 3230 | mv[0] = __wcd9xxx_codec_sta_dce_v(mbhc, 1, dce[0], |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3231 | dce_z, mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3232 | mv_s[0] = vddio ? scale_v_micb_vddio(mbhc, mv[0], |
| 3233 | false) : mv[0]; |
| 3234 | btn = wcd9xxx_determine_button(mbhc, mv_s[0]); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3235 | if (btn != wcd9xxx_determine_button(mbhc, stamv_s)) |
| 3236 | btn = -1; |
| 3237 | goto done; |
| 3238 | } |
| 3239 | } |
| 3240 | |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3241 | for (meas = 1; ((d->n_btn_meas) && (meas < (d->n_btn_meas + 1))); |
| 3242 | meas++) |
| 3243 | dce[meas] = wcd9xxx_codec_sta_dce(mbhc, 1, false); |
| 3244 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3245 | if (mbhc->update_z) { |
| 3246 | wcd9xxx_update_z(mbhc); |
| 3247 | mbhc->update_z = false; |
| 3248 | } |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3249 | |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3250 | stamv = __wcd9xxx_codec_sta_dce_v(mbhc, 0, sta, sta_z, |
| 3251 | mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3252 | if (vddio) |
| 3253 | stamv_s = scale_v_micb_vddio(mbhc, stamv, false); |
| 3254 | else |
| 3255 | stamv_s = stamv; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3256 | pr_debug("%s: Meas HW - STA 0x%x,%d,%d\n", __func__, |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3257 | sta & 0xFFFF, stamv, stamv_s); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3258 | |
| 3259 | /* determine pressed button */ |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3260 | mv[0] = __wcd9xxx_codec_sta_dce_v(mbhc, 1, dce[0], dce_z, |
| 3261 | mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3262 | mv_s[0] = vddio ? scale_v_micb_vddio(mbhc, mv[0], false) : mv[0]; |
| 3263 | btnmeas[0] = wcd9xxx_determine_button(mbhc, mv_s[0]); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3264 | pr_debug("%s: Meas HW - DCE 0x%x,%d,%d button %d\n", __func__, |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3265 | dce[0] & 0xFFFF, mv[0], mv_s[0], btnmeas[0]); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3266 | if (n_btn_meas == 0) |
| 3267 | btn = btnmeas[0]; |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3268 | for (meas = 1; (n_btn_meas && d->n_btn_meas && |
| 3269 | (meas < (d->n_btn_meas + 1))); meas++) { |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3270 | mv[meas] = __wcd9xxx_codec_sta_dce_v(mbhc, 1, dce[meas], dce_z, |
| 3271 | mbhc->mbhc_data.micb_mv); |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3272 | mv_s[meas] = vddio ? scale_v_micb_vddio(mbhc, mv[meas], false) : |
| 3273 | mv[meas]; |
| 3274 | btnmeas[meas] = wcd9xxx_determine_button(mbhc, mv_s[meas]); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3275 | pr_debug("%s: Meas %d - DCE 0x%x,%d,%d button %d\n", |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3276 | __func__, meas, dce[meas] & 0xFFFF, mv[meas], |
| 3277 | mv_s[meas], btnmeas[meas]); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3278 | /* |
| 3279 | * if large enough measurements are collected, |
| 3280 | * start to check if last all n_btn_con measurements were |
| 3281 | * in same button low/high range |
| 3282 | */ |
| 3283 | if (meas + 1 >= d->n_btn_con) { |
| 3284 | for (i = 0; i < d->n_btn_con; i++) |
| 3285 | if ((btnmeas[meas] < 0) || |
| 3286 | (btnmeas[meas] != btnmeas[meas - i])) |
| 3287 | break; |
| 3288 | if (i == d->n_btn_con) { |
| 3289 | /* button pressed */ |
| 3290 | btn = btnmeas[meas]; |
| 3291 | break; |
| 3292 | } else if ((n_btn_meas - meas) < (d->n_btn_con - 1)) { |
| 3293 | /* |
| 3294 | * if left measurements are less than n_btn_con, |
| 3295 | * it's impossible to find button number |
| 3296 | */ |
| 3297 | break; |
| 3298 | } |
| 3299 | } |
| 3300 | } |
| 3301 | |
| 3302 | if (btn >= 0) { |
| 3303 | if (mbhc->in_swch_irq_handler) { |
| 3304 | pr_debug( |
| 3305 | "%s: Switch irq triggered, ignore button press\n", |
| 3306 | __func__); |
| 3307 | goto done; |
| 3308 | } |
Joonwoo Park | c6a4e04 | 2013-07-17 17:48:04 -0700 | [diff] [blame] | 3309 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(calibration); |
| 3310 | v_btn_high = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, |
| 3311 | MBHC_BTN_DET_V_BTN_HIGH); |
| 3312 | WARN_ON(btn >= btn_det->num_btn); |
| 3313 | /* reprogram release threshold to catch voltage ramp up early */ |
| 3314 | wcd9xxx_update_rel_threshold(mbhc, v_btn_high[btn]); |
| 3315 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3316 | mask = wcd9xxx_get_button_mask(btn); |
| 3317 | mbhc->buttons_pressed |= mask; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3318 | wcd9xxx_lock_sleep(core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3319 | if (schedule_delayed_work(&mbhc->mbhc_btn_dwork, |
| 3320 | msecs_to_jiffies(400)) == 0) { |
| 3321 | WARN(1, "Button pressed twice without release event\n"); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3322 | wcd9xxx_unlock_sleep(core_res); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3323 | } |
| 3324 | } else { |
| 3325 | pr_debug("%s: bogus button press, too short press?\n", |
| 3326 | __func__); |
| 3327 | } |
| 3328 | |
| 3329 | done: |
| 3330 | pr_debug("%s: leave\n", __func__); |
| 3331 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 3332 | return IRQ_HANDLED; |
| 3333 | } |
| 3334 | |
| 3335 | static irqreturn_t wcd9xxx_release_handler(int irq, void *data) |
| 3336 | { |
| 3337 | int ret; |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3338 | bool waitdebounce = true; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3339 | struct wcd9xxx_mbhc *mbhc = data; |
| 3340 | |
| 3341 | pr_debug("%s: enter\n", __func__); |
| 3342 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
| 3343 | mbhc->mbhc_state = MBHC_STATE_RELEASE; |
| 3344 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3345 | if (mbhc->buttons_pressed & WCD9XXX_JACK_BUTTON_MASK) { |
| 3346 | ret = wcd9xxx_cancel_btn_work(mbhc); |
| 3347 | if (ret == 0) { |
| 3348 | pr_debug("%s: Reporting long button release event\n", |
| 3349 | __func__); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 3350 | wcd9xxx_jack_report(mbhc, &mbhc->button_jack, 0, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3351 | mbhc->buttons_pressed); |
| 3352 | } else { |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3353 | if (wcd9xxx_is_false_press(mbhc)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3354 | pr_debug("%s: Fake button press interrupt\n", |
| 3355 | __func__); |
| 3356 | } else { |
| 3357 | if (mbhc->in_swch_irq_handler) { |
| 3358 | pr_debug("%s: Switch irq kicked in, ignore\n", |
| 3359 | __func__); |
| 3360 | } else { |
| 3361 | pr_debug("%s: Reporting btn press\n", |
| 3362 | __func__); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 3363 | wcd9xxx_jack_report(mbhc, |
| 3364 | &mbhc->button_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3365 | mbhc->buttons_pressed, |
| 3366 | mbhc->buttons_pressed); |
| 3367 | pr_debug("%s: Reporting btn release\n", |
| 3368 | __func__); |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 3369 | wcd9xxx_jack_report(mbhc, |
| 3370 | &mbhc->button_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3371 | 0, mbhc->buttons_pressed); |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3372 | waitdebounce = false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3373 | } |
| 3374 | } |
| 3375 | } |
| 3376 | |
| 3377 | mbhc->buttons_pressed &= ~WCD9XXX_JACK_BUTTON_MASK; |
| 3378 | } |
| 3379 | |
| 3380 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 3381 | |
Joonwoo Park | 218e73f | 2013-08-21 16:22:18 -0700 | [diff] [blame] | 3382 | if (waitdebounce) |
| 3383 | msleep(SWCH_REL_DEBOUNCE_TIME_MS); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3384 | wcd9xxx_start_hs_polling(mbhc); |
| 3385 | |
| 3386 | pr_debug("%s: leave\n", __func__); |
| 3387 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 3388 | return IRQ_HANDLED; |
| 3389 | } |
| 3390 | |
| 3391 | static irqreturn_t wcd9xxx_hphl_ocp_irq(int irq, void *data) |
| 3392 | { |
| 3393 | struct wcd9xxx_mbhc *mbhc = data; |
| 3394 | struct snd_soc_codec *codec; |
| 3395 | |
| 3396 | pr_info("%s: received HPHL OCP irq\n", __func__); |
| 3397 | |
| 3398 | if (mbhc) { |
| 3399 | codec = mbhc->codec; |
Patrick Lai | 56fea88 | 2013-03-02 09:11:20 -0800 | [diff] [blame] | 3400 | if ((mbhc->hphlocp_cnt < OCP_ATTEMPT) && |
| 3401 | (!mbhc->hphrocp_cnt)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3402 | pr_info("%s: retry\n", __func__); |
Patrick Lai | 56fea88 | 2013-03-02 09:11:20 -0800 | [diff] [blame] | 3403 | mbhc->hphlocp_cnt++; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3404 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, |
| 3405 | 0x10, 0x00); |
| 3406 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, |
| 3407 | 0x10, 0x10); |
| 3408 | } else { |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3409 | wcd9xxx_disable_irq(mbhc->resmgr->core_res, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3410 | mbhc->intr_ids->hph_left_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3411 | mbhc->hph_status |= SND_JACK_OC_HPHL; |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 3412 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3413 | mbhc->hph_status, |
| 3414 | WCD9XXX_JACK_MASK); |
| 3415 | } |
| 3416 | } else { |
| 3417 | pr_err("%s: Bad wcd9xxx private data\n", __func__); |
| 3418 | } |
| 3419 | |
| 3420 | return IRQ_HANDLED; |
| 3421 | } |
| 3422 | |
| 3423 | static irqreturn_t wcd9xxx_hphr_ocp_irq(int irq, void *data) |
| 3424 | { |
| 3425 | struct wcd9xxx_mbhc *mbhc = data; |
| 3426 | struct snd_soc_codec *codec; |
| 3427 | |
| 3428 | pr_info("%s: received HPHR OCP irq\n", __func__); |
| 3429 | codec = mbhc->codec; |
Patrick Lai | 56fea88 | 2013-03-02 09:11:20 -0800 | [diff] [blame] | 3430 | if ((mbhc->hphrocp_cnt < OCP_ATTEMPT) && |
| 3431 | (!mbhc->hphlocp_cnt)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3432 | pr_info("%s: retry\n", __func__); |
Patrick Lai | 56fea88 | 2013-03-02 09:11:20 -0800 | [diff] [blame] | 3433 | mbhc->hphrocp_cnt++; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3434 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, 0x10, |
| 3435 | 0x00); |
| 3436 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, 0x10, |
| 3437 | 0x10); |
| 3438 | } else { |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3439 | wcd9xxx_disable_irq(mbhc->resmgr->core_res, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3440 | mbhc->intr_ids->hph_right_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3441 | mbhc->hph_status |= SND_JACK_OC_HPHR; |
Joonwoo Park | 3699ca3 | 2013-02-08 12:06:15 -0800 | [diff] [blame] | 3442 | wcd9xxx_jack_report(mbhc, &mbhc->headset_jack, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3443 | mbhc->hph_status, WCD9XXX_JACK_MASK); |
| 3444 | } |
| 3445 | |
| 3446 | return IRQ_HANDLED; |
| 3447 | } |
| 3448 | |
| 3449 | static int wcd9xxx_acdb_mclk_index(const int rate) |
| 3450 | { |
| 3451 | if (rate == MCLK_RATE_12288KHZ) |
| 3452 | return 0; |
| 3453 | else if (rate == MCLK_RATE_9600KHZ) |
| 3454 | return 1; |
| 3455 | else { |
| 3456 | BUG_ON(1); |
| 3457 | return -EINVAL; |
| 3458 | } |
| 3459 | } |
| 3460 | |
| 3461 | static void wcd9xxx_update_mbhc_clk_rate(struct wcd9xxx_mbhc *mbhc, u32 rate) |
| 3462 | { |
| 3463 | u32 dce_wait, sta_wait; |
| 3464 | u8 ncic, nmeas, navg; |
| 3465 | void *calibration; |
| 3466 | u8 *n_cic, *n_ready; |
| 3467 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 3468 | u8 npoll = 4, nbounce_wait = 30; |
| 3469 | struct snd_soc_codec *codec = mbhc->codec; |
| 3470 | int idx = wcd9xxx_acdb_mclk_index(rate); |
| 3471 | int idxmclk = wcd9xxx_acdb_mclk_index(mbhc->mbhc_cfg->mclk_rate); |
| 3472 | |
| 3473 | pr_debug("%s: Updating clock rate dependents, rate = %u\n", __func__, |
| 3474 | rate); |
| 3475 | calibration = mbhc->mbhc_cfg->calibration; |
| 3476 | |
| 3477 | /* |
| 3478 | * First compute the DCE / STA wait times depending on tunable |
| 3479 | * parameters. The value is computed in microseconds |
| 3480 | */ |
| 3481 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(calibration); |
| 3482 | n_ready = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, MBHC_BTN_DET_N_READY); |
| 3483 | n_cic = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, MBHC_BTN_DET_N_CIC); |
| 3484 | nmeas = WCD9XXX_MBHC_CAL_BTN_DET_PTR(calibration)->n_meas; |
| 3485 | navg = WCD9XXX_MBHC_CAL_GENERAL_PTR(calibration)->mbhc_navg; |
| 3486 | |
| 3487 | /* ncic stays with the same what we had during calibration */ |
| 3488 | ncic = n_cic[idxmclk]; |
| 3489 | dce_wait = (1000 * 512 * ncic * (nmeas + 1)) / (rate / 1000); |
| 3490 | sta_wait = (1000 * 128 * (navg + 1)) / (rate / 1000); |
| 3491 | mbhc->mbhc_data.t_dce = dce_wait; |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 3492 | /* give extra margin to sta for safety */ |
| 3493 | mbhc->mbhc_data.t_sta = sta_wait + 250; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3494 | mbhc->mbhc_data.t_sta_dce = ((1000 * 256) / (rate / 1000) * |
| 3495 | n_ready[idx]) + 10; |
| 3496 | |
| 3497 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_TIMER_B1_CTL, n_ready[idx]); |
| 3498 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_TIMER_B6_CTL, ncic); |
| 3499 | |
| 3500 | if (rate == MCLK_RATE_12288KHZ) { |
| 3501 | npoll = 4; |
| 3502 | nbounce_wait = 30; |
| 3503 | } else if (rate == MCLK_RATE_9600KHZ) { |
| 3504 | npoll = 3; |
| 3505 | nbounce_wait = 23; |
| 3506 | } |
| 3507 | |
| 3508 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_TIMER_B2_CTL, npoll); |
| 3509 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_TIMER_B3_CTL, nbounce_wait); |
| 3510 | pr_debug("%s: leave\n", __func__); |
| 3511 | } |
| 3512 | |
| 3513 | static void wcd9xxx_mbhc_cal(struct wcd9xxx_mbhc *mbhc) |
| 3514 | { |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 3515 | u8 cfilt_mode; |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3516 | u16 reg0, reg1, reg2; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3517 | struct snd_soc_codec *codec = mbhc->codec; |
| 3518 | |
| 3519 | pr_debug("%s: enter\n", __func__); |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3520 | wcd9xxx_disable_irq(mbhc->resmgr->core_res, |
| 3521 | mbhc->intr_ids->dce_est_complete); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3522 | wcd9xxx_turn_onoff_rel_detection(codec, false); |
| 3523 | |
| 3524 | /* t_dce and t_sta are updated by wcd9xxx_update_mbhc_clk_rate() */ |
| 3525 | WARN_ON(!mbhc->mbhc_data.t_dce); |
| 3526 | WARN_ON(!mbhc->mbhc_data.t_sta); |
| 3527 | |
| 3528 | /* |
| 3529 | * LDOH and CFILT are already configured during pdata handling. |
| 3530 | * Only need to make sure CFILT and bandgap are in Fast mode. |
| 3531 | * Need to restore defaults once calculation is done. |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 3532 | * |
| 3533 | * In case when Micbias is powered by external source, request |
| 3534 | * turn on the external voltage source for Calibration. |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3535 | */ |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 3536 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source) |
| 3537 | mbhc->mbhc_cb->enable_mb_source(codec, true); |
| 3538 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3539 | cfilt_mode = snd_soc_read(codec, mbhc->mbhc_bias_regs.cfilt_ctl); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3540 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->cfilt_fast_mode) |
| 3541 | mbhc->mbhc_cb->cfilt_fast_mode(codec, mbhc); |
| 3542 | else |
| 3543 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.cfilt_ctl, |
| 3544 | 0x40, 0x00); |
| 3545 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3546 | /* |
| 3547 | * Micbias, CFILT, LDOH, MBHC MUX mode settings |
| 3548 | * to perform ADC calibration |
| 3549 | */ |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3550 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->select_cfilt) |
| 3551 | mbhc->mbhc_cb->select_cfilt(codec, mbhc); |
| 3552 | else |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3553 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x60, |
| 3554 | mbhc->mbhc_cfg->micbias << 5); |
| 3555 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x00); |
| 3556 | snd_soc_update_bits(codec, WCD9XXX_A_LDO_H_MODE_1, 0x60, 0x60); |
| 3557 | snd_soc_write(codec, WCD9XXX_A_TX_7_MBHC_TEST_CTL, 0x78); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3558 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->codec_specific_cal) |
| 3559 | mbhc->mbhc_cb->codec_specific_cal(codec, mbhc); |
| 3560 | else |
| 3561 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, |
| 3562 | 0x04, 0x04); |
| 3563 | |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3564 | /* Pull down micbias to ground */ |
| 3565 | reg0 = snd_soc_read(codec, mbhc->mbhc_bias_regs.ctl_reg); |
| 3566 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 1, 1); |
| 3567 | /* Disconnect override from micbias */ |
| 3568 | reg1 = snd_soc_read(codec, WCD9XXX_A_MAD_ANA_CTRL); |
| 3569 | snd_soc_update_bits(codec, WCD9XXX_A_MAD_ANA_CTRL, 1 << 4, 1 << 0); |
| 3570 | /* Connect the MUX to micbias */ |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 3571 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x02); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3572 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 3573 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 3574 | else |
| 3575 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 3576 | 0x80, 0x80); |
Joonwoo Park | aec97c7 | 2013-05-14 16:51:02 -0700 | [diff] [blame] | 3577 | /* |
| 3578 | * Hardware that has external cap can delay mic bias ramping down up |
| 3579 | * to 50ms. |
| 3580 | */ |
| 3581 | msleep(WCD9XXX_MUX_SWITCH_READY_WAIT_MS); |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3582 | /* DCE measurement for 0 voltage */ |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3583 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x0A); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3584 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x02); |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3585 | mbhc->mbhc_data.dce_z = __wcd9xxx_codec_sta_dce(mbhc, 1, true, false); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3586 | |
| 3587 | /* compute dce_z for current source */ |
| 3588 | reg2 = snd_soc_read(codec, WCD9XXX_A_CDC_MBHC_B1_CTL); |
| 3589 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x78, |
| 3590 | WCD9XXX_MBHC_NSC_CS << 3); |
| 3591 | |
| 3592 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x0A); |
| 3593 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x02); |
| 3594 | mbhc->mbhc_data.dce_nsc_cs_z = __wcd9xxx_codec_sta_dce(mbhc, 1, true, |
| 3595 | false); |
| 3596 | pr_debug("%s: dce_z with nsc cs: 0x%x\n", __func__, |
| 3597 | mbhc->mbhc_data.dce_nsc_cs_z); |
| 3598 | |
| 3599 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, reg2); |
| 3600 | |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3601 | /* STA measurement for 0 voltage */ |
| 3602 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x0A); |
| 3603 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x02); |
| 3604 | mbhc->mbhc_data.sta_z = __wcd9xxx_codec_sta_dce(mbhc, 0, true, false); |
Phani Kumar Uppalapati | 3559a7e | 2013-06-24 13:52:31 -0700 | [diff] [blame] | 3605 | |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3606 | /* Restore registers */ |
| 3607 | snd_soc_write(codec, mbhc->mbhc_bias_regs.ctl_reg, reg0); |
| 3608 | snd_soc_write(codec, WCD9XXX_A_MAD_ANA_CTRL, reg1); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3609 | |
| 3610 | /* DCE measurment for MB voltage */ |
| 3611 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x0A); |
| 3612 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x02); |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 3613 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x02); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3614 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 3615 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 3616 | else |
| 3617 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 3618 | 0x80, 0x80); |
Joonwoo Park | aec97c7 | 2013-05-14 16:51:02 -0700 | [diff] [blame] | 3619 | /* |
| 3620 | * Hardware that has external cap can delay mic bias ramping down up |
| 3621 | * to 50ms. |
| 3622 | */ |
| 3623 | msleep(WCD9XXX_MUX_SWITCH_READY_WAIT_MS); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3624 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x04); |
| 3625 | usleep_range(mbhc->mbhc_data.t_dce, mbhc->mbhc_data.t_dce); |
| 3626 | mbhc->mbhc_data.dce_mb = wcd9xxx_read_dce_result(codec); |
| 3627 | |
Joonwoo Park | 7902f4c | 2013-02-20 15:21:25 -0800 | [diff] [blame] | 3628 | /* STA Measurement for MB Voltage */ |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3629 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x0A); |
| 3630 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x02); |
| 3631 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_CLK_CTL, 0x02); |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 3632 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x02); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3633 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 3634 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 3635 | else |
| 3636 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 3637 | 0x80, 0x80); |
Joonwoo Park | aec97c7 | 2013-05-14 16:51:02 -0700 | [diff] [blame] | 3638 | /* |
| 3639 | * Hardware that has external cap can delay mic bias ramping down up |
| 3640 | * to 50ms. |
| 3641 | */ |
| 3642 | msleep(WCD9XXX_MUX_SWITCH_READY_WAIT_MS); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3643 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_EN_CTL, 0x02); |
| 3644 | usleep_range(mbhc->mbhc_data.t_sta, mbhc->mbhc_data.t_sta); |
| 3645 | mbhc->mbhc_data.sta_mb = wcd9xxx_read_sta_result(codec); |
| 3646 | |
| 3647 | /* Restore default settings. */ |
| 3648 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x04, 0x00); |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 3649 | snd_soc_write(codec, mbhc->mbhc_bias_regs.cfilt_ctl, cfilt_mode); |
Simmi Pateriya | 4b9c24b | 2013-04-10 06:10:53 +0530 | [diff] [blame] | 3650 | snd_soc_write(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, 0x04); |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3651 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 3652 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 3653 | else |
| 3654 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 3655 | 0x80, 0x80); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3656 | usleep_range(100, 100); |
| 3657 | |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 3658 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source) |
| 3659 | mbhc->mbhc_cb->enable_mb_source(codec, false); |
| 3660 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3661 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, |
| 3662 | mbhc->intr_ids->dce_est_complete); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3663 | wcd9xxx_turn_onoff_rel_detection(codec, true); |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 3664 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3665 | pr_debug("%s: leave\n", __func__); |
| 3666 | } |
| 3667 | |
| 3668 | static void wcd9xxx_mbhc_setup(struct wcd9xxx_mbhc *mbhc) |
| 3669 | { |
| 3670 | int n; |
| 3671 | u8 *gain; |
| 3672 | struct wcd9xxx_mbhc_general_cfg *generic; |
| 3673 | struct wcd9xxx_mbhc_btn_detect_cfg *btn_det; |
| 3674 | struct snd_soc_codec *codec = mbhc->codec; |
| 3675 | const int idx = wcd9xxx_acdb_mclk_index(mbhc->mbhc_cfg->mclk_rate); |
| 3676 | |
| 3677 | pr_debug("%s: enter\n", __func__); |
| 3678 | generic = WCD9XXX_MBHC_CAL_GENERAL_PTR(mbhc->mbhc_cfg->calibration); |
| 3679 | btn_det = WCD9XXX_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration); |
| 3680 | |
| 3681 | for (n = 0; n < 8; n++) { |
| 3682 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_FIR_B1_CFG, |
| 3683 | 0x07, n); |
| 3684 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_FIR_B2_CFG, |
| 3685 | btn_det->c[n]); |
| 3686 | } |
| 3687 | |
| 3688 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B2_CTL, 0x07, |
| 3689 | btn_det->nc); |
| 3690 | |
| 3691 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_TIMER_B4_CTL, 0x70, |
| 3692 | generic->mbhc_nsa << 4); |
| 3693 | |
| 3694 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_TIMER_B4_CTL, 0x0F, |
| 3695 | btn_det->n_meas); |
| 3696 | |
| 3697 | snd_soc_write(codec, WCD9XXX_A_CDC_MBHC_TIMER_B5_CTL, |
| 3698 | generic->mbhc_navg); |
| 3699 | |
| 3700 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x80, 0x80); |
| 3701 | |
| 3702 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x78, |
| 3703 | btn_det->mbhc_nsc << 3); |
| 3704 | |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 3705 | if (mbhc->mbhc_cb && |
| 3706 | mbhc->mbhc_cb->get_cdc_type() != |
| 3707 | WCD9XXX_CDC_TYPE_HELICON) { |
| 3708 | if (mbhc->resmgr->reg_addr->micb_4_mbhc) |
| 3709 | snd_soc_update_bits(codec, |
| 3710 | mbhc->resmgr->reg_addr->micb_4_mbhc, |
| 3711 | 0x03, MBHC_MICBIAS2); |
| 3712 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3713 | |
| 3714 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B1_CTL, 0x02, 0x02); |
| 3715 | |
| 3716 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_SCALING_MUX_2, 0xF0, 0xF0); |
| 3717 | |
| 3718 | gain = wcd9xxx_mbhc_cal_btn_det_mp(btn_det, MBHC_BTN_DET_GAIN); |
| 3719 | snd_soc_update_bits(codec, WCD9XXX_A_CDC_MBHC_B2_CTL, 0x78, |
| 3720 | gain[idx] << 3); |
| 3721 | |
| 3722 | pr_debug("%s: leave\n", __func__); |
| 3723 | } |
| 3724 | |
| 3725 | static int wcd9xxx_setup_jack_detect_irq(struct wcd9xxx_mbhc *mbhc) |
| 3726 | { |
| 3727 | int ret = 0; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3728 | void *core_res = mbhc->resmgr->core_res; |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3729 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3730 | if (mbhc->mbhc_cfg->gpio) { |
| 3731 | ret = request_threaded_irq(mbhc->mbhc_cfg->gpio_irq, NULL, |
| 3732 | wcd9xxx_mech_plug_detect_irq, |
| 3733 | (IRQF_TRIGGER_RISING | |
| 3734 | IRQF_TRIGGER_FALLING | |
| 3735 | IRQF_DISABLED), |
| 3736 | "headset detect", mbhc); |
| 3737 | if (ret) { |
| 3738 | pr_err("%s: Failed to request gpio irq %d\n", __func__, |
| 3739 | mbhc->mbhc_cfg->gpio_irq); |
| 3740 | } else { |
| 3741 | ret = enable_irq_wake(mbhc->mbhc_cfg->gpio_irq); |
| 3742 | if (ret) |
| 3743 | pr_err("%s: Failed to enable wake up irq %d\n", |
| 3744 | __func__, mbhc->mbhc_cfg->gpio_irq); |
| 3745 | } |
| 3746 | } else if (mbhc->mbhc_cfg->insert_detect) { |
| 3747 | /* Enable HPHL_10K_SW */ |
| 3748 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_RX_HPH_OCP_CTL, |
| 3749 | 1 << 1, 1 << 1); |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 3750 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3751 | ret = wcd9xxx_request_irq(core_res, |
| 3752 | mbhc->intr_ids->hs_jack_switch, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3753 | wcd9xxx_mech_plug_detect_irq, |
| 3754 | "Jack Detect", |
| 3755 | mbhc); |
| 3756 | if (ret) |
| 3757 | pr_err("%s: Failed to request insert detect irq %d\n", |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3758 | __func__, mbhc->intr_ids->hs_jack_switch); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3759 | } |
| 3760 | |
| 3761 | return ret; |
| 3762 | } |
| 3763 | |
| 3764 | static int wcd9xxx_init_and_calibrate(struct wcd9xxx_mbhc *mbhc) |
| 3765 | { |
| 3766 | int ret = 0; |
| 3767 | struct snd_soc_codec *codec = mbhc->codec; |
| 3768 | |
| 3769 | pr_debug("%s: enter\n", __func__); |
| 3770 | |
| 3771 | /* Enable MCLK during calibration */ |
| 3772 | wcd9xxx_onoff_ext_mclk(mbhc, true); |
| 3773 | wcd9xxx_mbhc_setup(mbhc); |
| 3774 | wcd9xxx_mbhc_cal(mbhc); |
| 3775 | wcd9xxx_mbhc_calc_thres(mbhc); |
| 3776 | wcd9xxx_onoff_ext_mclk(mbhc, false); |
| 3777 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 3778 | |
| 3779 | /* Enable Mic Bias pull down and HPH Switch to GND */ |
| 3780 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.ctl_reg, 0x01, 0x01); |
| 3781 | snd_soc_update_bits(codec, WCD9XXX_A_MBHC_HPH, 0x01, 0x01); |
| 3782 | INIT_WORK(&mbhc->correct_plug_swch, wcd9xxx_correct_swch_plug); |
| 3783 | |
| 3784 | if (!IS_ERR_VALUE(ret)) { |
| 3785 | snd_soc_update_bits(codec, WCD9XXX_A_RX_HPH_OCP_CTL, 0x10, |
| 3786 | 0x10); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3787 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3788 | mbhc->intr_ids->hph_left_ocp); |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 3789 | wcd9xxx_enable_irq(mbhc->resmgr->core_res, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 3790 | mbhc->intr_ids->hph_right_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3791 | |
| 3792 | /* Initialize mechanical mbhc */ |
| 3793 | ret = wcd9xxx_setup_jack_detect_irq(mbhc); |
| 3794 | |
| 3795 | if (!ret && mbhc->mbhc_cfg->gpio) { |
| 3796 | /* Requested with IRQF_DISABLED */ |
| 3797 | enable_irq(mbhc->mbhc_cfg->gpio_irq); |
| 3798 | |
| 3799 | /* Bootup time detection */ |
| 3800 | wcd9xxx_swch_irq_handler(mbhc); |
| 3801 | } else if (!ret && mbhc->mbhc_cfg->insert_detect) { |
| 3802 | pr_debug("%s: Setting up codec own insert detection\n", |
| 3803 | __func__); |
| 3804 | /* Setup for insertion detection */ |
| 3805 | wcd9xxx_insert_detect_setup(mbhc, true); |
| 3806 | } |
| 3807 | } |
| 3808 | |
| 3809 | pr_debug("%s: leave\n", __func__); |
| 3810 | |
| 3811 | return ret; |
| 3812 | } |
| 3813 | |
| 3814 | static void wcd9xxx_mbhc_fw_read(struct work_struct *work) |
| 3815 | { |
| 3816 | struct delayed_work *dwork; |
| 3817 | struct wcd9xxx_mbhc *mbhc; |
| 3818 | struct snd_soc_codec *codec; |
| 3819 | const struct firmware *fw; |
| 3820 | int ret = -1, retry = 0; |
| 3821 | |
| 3822 | dwork = to_delayed_work(work); |
| 3823 | mbhc = container_of(dwork, struct wcd9xxx_mbhc, mbhc_firmware_dwork); |
| 3824 | codec = mbhc->codec; |
| 3825 | |
| 3826 | while (retry < FW_READ_ATTEMPTS) { |
| 3827 | retry++; |
| 3828 | pr_info("%s:Attempt %d to request MBHC firmware\n", |
| 3829 | __func__, retry); |
| 3830 | ret = request_firmware(&fw, "wcd9320/wcd9320_mbhc.bin", |
| 3831 | codec->dev); |
| 3832 | |
| 3833 | if (ret != 0) { |
| 3834 | usleep_range(FW_READ_TIMEOUT, FW_READ_TIMEOUT); |
| 3835 | } else { |
| 3836 | pr_info("%s: MBHC Firmware read succesful\n", __func__); |
| 3837 | break; |
| 3838 | } |
| 3839 | } |
| 3840 | |
| 3841 | if (ret != 0) { |
| 3842 | pr_err("%s: Cannot load MBHC firmware use default cal\n", |
| 3843 | __func__); |
| 3844 | } else if (wcd9xxx_mbhc_fw_validate(fw) == false) { |
| 3845 | pr_err("%s: Invalid MBHC cal data size use default cal\n", |
| 3846 | __func__); |
| 3847 | release_firmware(fw); |
| 3848 | } else { |
| 3849 | mbhc->mbhc_cfg->calibration = (void *)fw->data; |
| 3850 | mbhc->mbhc_fw = fw; |
| 3851 | } |
| 3852 | |
| 3853 | (void) wcd9xxx_init_and_calibrate(mbhc); |
| 3854 | } |
| 3855 | |
| 3856 | #ifdef CONFIG_DEBUG_FS |
| 3857 | ssize_t codec_mbhc_debug_read(struct file *file, char __user *buf, |
| 3858 | size_t count, loff_t *pos) |
| 3859 | { |
| 3860 | const int size = 768; |
| 3861 | char buffer[size]; |
| 3862 | int n = 0; |
| 3863 | struct wcd9xxx_mbhc *mbhc = file->private_data; |
| 3864 | const struct mbhc_internal_cal_data *p = &mbhc->mbhc_data; |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 3865 | const s16 v_ins_hu = |
| 3866 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_INS_HU); |
| 3867 | const s16 v_ins_h = |
| 3868 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_INS_H); |
| 3869 | const s16 v_b1_hu = |
| 3870 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_HU); |
| 3871 | const s16 v_b1_h = |
| 3872 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_B1_H); |
| 3873 | const s16 v_br_h = |
| 3874 | wcd9xxx_get_current_v(mbhc, WCD9XXX_CURRENT_V_BR_H); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3875 | |
Joonwoo Park | 520a0f9 | 2013-05-14 19:39:58 -0700 | [diff] [blame] | 3876 | n = scnprintf(buffer, size - n, "dce_z = %x(%dmv)\n", |
| 3877 | p->dce_z, wcd9xxx_codec_sta_dce_v(mbhc, 1, p->dce_z)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3878 | n += scnprintf(buffer + n, size - n, "dce_mb = %x(%dmv)\n", |
| 3879 | p->dce_mb, wcd9xxx_codec_sta_dce_v(mbhc, 1, p->dce_mb)); |
Joonwoo Park | 35d4cde | 2013-08-14 15:11:14 -0700 | [diff] [blame] | 3880 | n += scnprintf(buffer + n, size - n, "dce_nsc_cs_z = %x(%dmv)\n", |
| 3881 | p->dce_nsc_cs_z, |
| 3882 | __wcd9xxx_codec_sta_dce_v(mbhc, 1, p->dce_nsc_cs_z, |
| 3883 | p->dce_nsc_cs_z, |
| 3884 | VDDIO_MICBIAS_MV)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3885 | n += scnprintf(buffer + n, size - n, "sta_z = %x(%dmv)\n", |
| 3886 | p->sta_z, wcd9xxx_codec_sta_dce_v(mbhc, 0, p->sta_z)); |
| 3887 | n += scnprintf(buffer + n, size - n, "sta_mb = %x(%dmv)\n", |
| 3888 | p->sta_mb, wcd9xxx_codec_sta_dce_v(mbhc, 0, p->sta_mb)); |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 3889 | n += scnprintf(buffer + n, size - n, "t_dce = %d\n", p->t_dce); |
| 3890 | n += scnprintf(buffer + n, size - n, "t_sta = %d\n", p->t_sta); |
| 3891 | n += scnprintf(buffer + n, size - n, "micb_mv = %dmv\n", p->micb_mv); |
| 3892 | n += scnprintf(buffer + n, size - n, "v_ins_hu = %x(%dmv)\n", |
| 3893 | v_ins_hu, wcd9xxx_codec_sta_dce_v(mbhc, 0, v_ins_hu)); |
| 3894 | n += scnprintf(buffer + n, size - n, "v_ins_h = %x(%dmv)\n", |
| 3895 | v_ins_h, wcd9xxx_codec_sta_dce_v(mbhc, 1, v_ins_h)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3896 | n += scnprintf(buffer + n, size - n, "v_b1_hu = %x(%dmv)\n", |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 3897 | v_b1_hu, wcd9xxx_codec_sta_dce_v(mbhc, 0, v_b1_hu)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3898 | n += scnprintf(buffer + n, size - n, "v_b1_h = %x(%dmv)\n", |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 3899 | v_b1_h, wcd9xxx_codec_sta_dce_v(mbhc, 1, v_b1_h)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3900 | n += scnprintf(buffer + n, size - n, "v_brh = %x(%dmv)\n", |
Joonwoo Park | 7337521 | 2013-05-07 12:42:44 -0700 | [diff] [blame] | 3901 | v_br_h, wcd9xxx_codec_sta_dce_v(mbhc, 1, v_br_h)); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3902 | n += scnprintf(buffer + n, size - n, "v_brl = %x(%dmv)\n", p->v_brl, |
| 3903 | wcd9xxx_codec_sta_dce_v(mbhc, 0, p->v_brl)); |
| 3904 | n += scnprintf(buffer + n, size - n, "v_no_mic = %x(%dmv)\n", |
| 3905 | p->v_no_mic, |
| 3906 | wcd9xxx_codec_sta_dce_v(mbhc, 0, p->v_no_mic)); |
| 3907 | n += scnprintf(buffer + n, size - n, "v_inval_ins_low = %d\n", |
| 3908 | p->v_inval_ins_low); |
| 3909 | n += scnprintf(buffer + n, size - n, "v_inval_ins_high = %d\n", |
| 3910 | p->v_inval_ins_high); |
| 3911 | n += scnprintf(buffer + n, size - n, "Insert detect insert = %d\n", |
| 3912 | !wcd9xxx_swch_level_remove(mbhc)); |
| 3913 | buffer[n] = 0; |
| 3914 | |
| 3915 | return simple_read_from_buffer(buf, count, pos, buffer, n); |
| 3916 | } |
| 3917 | |
| 3918 | static int codec_debug_open(struct inode *inode, struct file *file) |
| 3919 | { |
| 3920 | file->private_data = inode->i_private; |
| 3921 | return 0; |
| 3922 | } |
| 3923 | |
| 3924 | static ssize_t codec_debug_write(struct file *filp, |
| 3925 | const char __user *ubuf, size_t cnt, |
| 3926 | loff_t *ppos) |
| 3927 | { |
| 3928 | char lbuf[32]; |
| 3929 | char *buf; |
| 3930 | int rc; |
| 3931 | struct wcd9xxx_mbhc *mbhc = filp->private_data; |
| 3932 | |
| 3933 | if (cnt > sizeof(lbuf) - 1) |
| 3934 | return -EINVAL; |
| 3935 | |
| 3936 | rc = copy_from_user(lbuf, ubuf, cnt); |
| 3937 | if (rc) |
| 3938 | return -EFAULT; |
| 3939 | |
| 3940 | lbuf[cnt] = '\0'; |
| 3941 | buf = (char *)lbuf; |
| 3942 | mbhc->no_mic_headset_override = (*strsep(&buf, " ") == '0') ? |
| 3943 | false : true; |
| 3944 | return rc; |
| 3945 | } |
| 3946 | |
| 3947 | static const struct file_operations mbhc_trrs_debug_ops = { |
| 3948 | .open = codec_debug_open, |
| 3949 | .write = codec_debug_write, |
| 3950 | }; |
| 3951 | |
| 3952 | static const struct file_operations mbhc_debug_ops = { |
| 3953 | .open = codec_debug_open, |
| 3954 | .read = codec_mbhc_debug_read, |
| 3955 | }; |
| 3956 | |
| 3957 | static void wcd9xxx_init_debugfs(struct wcd9xxx_mbhc *mbhc) |
| 3958 | { |
| 3959 | mbhc->debugfs_poke = |
| 3960 | debugfs_create_file("TRRS", S_IFREG | S_IRUGO, NULL, mbhc, |
| 3961 | &mbhc_trrs_debug_ops); |
| 3962 | mbhc->debugfs_mbhc = |
| 3963 | debugfs_create_file("wcd9xxx_mbhc", S_IFREG | S_IRUGO, |
| 3964 | NULL, mbhc, &mbhc_debug_ops); |
| 3965 | } |
| 3966 | |
| 3967 | static void wcd9xxx_cleanup_debugfs(struct wcd9xxx_mbhc *mbhc) |
| 3968 | { |
| 3969 | debugfs_remove(mbhc->debugfs_poke); |
| 3970 | debugfs_remove(mbhc->debugfs_mbhc); |
| 3971 | } |
| 3972 | #else |
| 3973 | static void wcd9xxx_init_debugfs(struct wcd9xxx_mbhc *mbhc) |
| 3974 | { |
| 3975 | } |
| 3976 | |
| 3977 | static void wcd9xxx_cleanup_debugfs(struct wcd9xxx_mbhc *mbhc) |
| 3978 | { |
| 3979 | } |
| 3980 | #endif |
| 3981 | |
| 3982 | int wcd9xxx_mbhc_start(struct wcd9xxx_mbhc *mbhc, |
| 3983 | struct wcd9xxx_mbhc_config *mbhc_cfg) |
| 3984 | { |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 3985 | int rc = 0; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 3986 | struct snd_soc_codec *codec = mbhc->codec; |
| 3987 | |
| 3988 | pr_debug("%s: enter\n", __func__); |
| 3989 | |
| 3990 | if (!codec) { |
| 3991 | pr_err("%s: no codec\n", __func__); |
| 3992 | return -EINVAL; |
| 3993 | } |
| 3994 | |
| 3995 | if (mbhc_cfg->mclk_rate != MCLK_RATE_12288KHZ && |
| 3996 | mbhc_cfg->mclk_rate != MCLK_RATE_9600KHZ) { |
| 3997 | pr_err("Error: unsupported clock rate %d\n", |
| 3998 | mbhc_cfg->mclk_rate); |
| 3999 | return -EINVAL; |
| 4000 | } |
| 4001 | |
| 4002 | /* Save mbhc config */ |
| 4003 | mbhc->mbhc_cfg = mbhc_cfg; |
| 4004 | |
| 4005 | /* Get HW specific mbhc registers' address */ |
| 4006 | wcd9xxx_get_mbhc_micbias_regs(mbhc, &mbhc->mbhc_bias_regs); |
| 4007 | |
| 4008 | /* Put CFILT in fast mode by default */ |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 4009 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->cfilt_fast_mode) |
| 4010 | mbhc->mbhc_cb->cfilt_fast_mode(codec, mbhc); |
| 4011 | else |
| 4012 | snd_soc_update_bits(codec, mbhc->mbhc_bias_regs.cfilt_ctl, |
| 4013 | 0x40, WCD9XXX_CFILT_FAST_MODE); |
| 4014 | |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 4015 | /* |
Bhalchandra Gajare | 6a2296b | 2013-09-19 13:15:08 -0700 | [diff] [blame] | 4016 | * setup internal micbias if codec uses internal micbias for |
| 4017 | * headset detection |
| 4018 | */ |
| 4019 | if (mbhc->mbhc_cfg->use_int_rbias) { |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4020 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->setup_int_rbias) { |
Bhalchandra Gajare | 6a2296b | 2013-09-19 13:15:08 -0700 | [diff] [blame] | 4021 | mbhc->mbhc_cb->setup_int_rbias(codec, true); |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4022 | mbhc->int_rbias_on = true; |
| 4023 | } else { |
| 4024 | pr_info("%s: internal bias requested but codec did not provide callback\n", |
Bhalchandra Gajare | 6a2296b | 2013-09-19 13:15:08 -0700 | [diff] [blame] | 4025 | __func__); |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4026 | } |
Bhalchandra Gajare | 6a2296b | 2013-09-19 13:15:08 -0700 | [diff] [blame] | 4027 | } |
| 4028 | |
| 4029 | /* |
Bhalchandra Gajare | 8e5fe25 | 2013-07-15 19:42:21 -0700 | [diff] [blame] | 4030 | * If codec has specific clock gating for MBHC, |
| 4031 | * remove the clock gate |
| 4032 | */ |
| 4033 | if (mbhc->mbhc_cb && |
| 4034 | mbhc->mbhc_cb->enable_clock_gate) |
| 4035 | mbhc->mbhc_cb->enable_clock_gate(mbhc->codec, true); |
| 4036 | |
Joonwoo Park | e7d724e | 2013-08-19 15:51:01 -0700 | [diff] [blame] | 4037 | if (!mbhc->mbhc_cfg->read_fw_bin || |
| 4038 | (mbhc->mbhc_cfg->read_fw_bin && mbhc->mbhc_fw)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4039 | rc = wcd9xxx_init_and_calibrate(mbhc); |
Joonwoo Park | e7d724e | 2013-08-19 15:51:01 -0700 | [diff] [blame] | 4040 | } else { |
| 4041 | if (!mbhc->mbhc_fw) |
| 4042 | schedule_delayed_work(&mbhc->mbhc_firmware_dwork, |
| 4043 | usecs_to_jiffies(FW_READ_TIMEOUT)); |
| 4044 | else |
| 4045 | pr_debug("%s: Skipping to read mbhc fw, 0x%p\n", |
| 4046 | __func__, mbhc->mbhc_fw); |
| 4047 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4048 | |
| 4049 | pr_debug("%s: leave %d\n", __func__, rc); |
| 4050 | return rc; |
| 4051 | } |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4052 | EXPORT_SYMBOL(wcd9xxx_mbhc_start); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4053 | |
Joonwoo Park | e7d724e | 2013-08-19 15:51:01 -0700 | [diff] [blame] | 4054 | void wcd9xxx_mbhc_stop(struct wcd9xxx_mbhc *mbhc) |
| 4055 | { |
| 4056 | if (mbhc->mbhc_fw) { |
| 4057 | cancel_delayed_work_sync(&mbhc->mbhc_firmware_dwork); |
| 4058 | release_firmware(mbhc->mbhc_fw); |
| 4059 | mbhc->mbhc_fw = NULL; |
| 4060 | } |
| 4061 | } |
| 4062 | EXPORT_SYMBOL(wcd9xxx_mbhc_stop); |
| 4063 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4064 | static enum wcd9xxx_micbias_num |
| 4065 | wcd9xxx_event_to_micbias(const enum wcd9xxx_notify_event event) |
| 4066 | { |
| 4067 | enum wcd9xxx_micbias_num ret; |
| 4068 | switch (event) { |
| 4069 | case WCD9XXX_EVENT_PRE_MICBIAS_1_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4070 | case WCD9XXX_EVENT_PRE_MICBIAS_1_OFF: |
| 4071 | case WCD9XXX_EVENT_POST_MICBIAS_1_ON: |
| 4072 | case WCD9XXX_EVENT_POST_MICBIAS_1_OFF: |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4073 | ret = MBHC_MICBIAS1; |
Joonwoo Park | bac18db | 2013-03-21 15:51:33 -0700 | [diff] [blame] | 4074 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4075 | case WCD9XXX_EVENT_PRE_MICBIAS_2_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4076 | case WCD9XXX_EVENT_PRE_MICBIAS_2_OFF: |
| 4077 | case WCD9XXX_EVENT_POST_MICBIAS_2_ON: |
| 4078 | case WCD9XXX_EVENT_POST_MICBIAS_2_OFF: |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4079 | ret = MBHC_MICBIAS2; |
Joonwoo Park | bac18db | 2013-03-21 15:51:33 -0700 | [diff] [blame] | 4080 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4081 | case WCD9XXX_EVENT_PRE_MICBIAS_3_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4082 | case WCD9XXX_EVENT_PRE_MICBIAS_3_OFF: |
| 4083 | case WCD9XXX_EVENT_POST_MICBIAS_3_ON: |
| 4084 | case WCD9XXX_EVENT_POST_MICBIAS_3_OFF: |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4085 | ret = MBHC_MICBIAS3; |
Joonwoo Park | bac18db | 2013-03-21 15:51:33 -0700 | [diff] [blame] | 4086 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4087 | case WCD9XXX_EVENT_PRE_MICBIAS_4_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4088 | case WCD9XXX_EVENT_PRE_MICBIAS_4_OFF: |
| 4089 | case WCD9XXX_EVENT_POST_MICBIAS_4_ON: |
| 4090 | case WCD9XXX_EVENT_POST_MICBIAS_4_OFF: |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4091 | ret = MBHC_MICBIAS4; |
Joonwoo Park | bac18db | 2013-03-21 15:51:33 -0700 | [diff] [blame] | 4092 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4093 | default: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4094 | WARN_ONCE(1, "Cannot convert event %d to micbias\n", event); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4095 | ret = MBHC_MICBIAS_INVALID; |
Joonwoo Park | bac18db | 2013-03-21 15:51:33 -0700 | [diff] [blame] | 4096 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4097 | } |
| 4098 | return ret; |
| 4099 | } |
| 4100 | |
| 4101 | static int wcd9xxx_event_to_cfilt(const enum wcd9xxx_notify_event event) |
| 4102 | { |
| 4103 | int ret; |
| 4104 | switch (event) { |
| 4105 | case WCD9XXX_EVENT_PRE_CFILT_1_OFF: |
| 4106 | case WCD9XXX_EVENT_POST_CFILT_1_OFF: |
| 4107 | case WCD9XXX_EVENT_PRE_CFILT_1_ON: |
| 4108 | case WCD9XXX_EVENT_POST_CFILT_1_ON: |
| 4109 | ret = WCD9XXX_CFILT1_SEL; |
| 4110 | break; |
| 4111 | case WCD9XXX_EVENT_PRE_CFILT_2_OFF: |
| 4112 | case WCD9XXX_EVENT_POST_CFILT_2_OFF: |
| 4113 | case WCD9XXX_EVENT_PRE_CFILT_2_ON: |
| 4114 | case WCD9XXX_EVENT_POST_CFILT_2_ON: |
| 4115 | ret = WCD9XXX_CFILT2_SEL; |
| 4116 | break; |
| 4117 | case WCD9XXX_EVENT_PRE_CFILT_3_OFF: |
| 4118 | case WCD9XXX_EVENT_POST_CFILT_3_OFF: |
| 4119 | case WCD9XXX_EVENT_PRE_CFILT_3_ON: |
| 4120 | case WCD9XXX_EVENT_POST_CFILT_3_ON: |
| 4121 | ret = WCD9XXX_CFILT3_SEL; |
| 4122 | break; |
| 4123 | default: |
| 4124 | ret = -1; |
| 4125 | } |
| 4126 | return ret; |
| 4127 | } |
| 4128 | |
| 4129 | static int wcd9xxx_get_mbhc_cfilt_sel(struct wcd9xxx_mbhc *mbhc) |
| 4130 | { |
| 4131 | int cfilt; |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 4132 | const struct wcd9xxx_micbias_setting *mb_pdata = |
| 4133 | mbhc->resmgr->micbias_pdata; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4134 | |
| 4135 | switch (mbhc->mbhc_cfg->micbias) { |
| 4136 | case MBHC_MICBIAS1: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 4137 | cfilt = mb_pdata->bias1_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4138 | break; |
| 4139 | case MBHC_MICBIAS2: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 4140 | cfilt = mb_pdata->bias2_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4141 | break; |
| 4142 | case MBHC_MICBIAS3: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 4143 | cfilt = mb_pdata->bias3_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4144 | break; |
| 4145 | case MBHC_MICBIAS4: |
Bhalchandra Gajare | 9943aa6 | 2013-10-09 18:40:11 -0700 | [diff] [blame] | 4146 | cfilt = mb_pdata->bias4_cfilt_sel; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4147 | break; |
| 4148 | default: |
| 4149 | cfilt = MBHC_MICBIAS_INVALID; |
| 4150 | break; |
| 4151 | } |
| 4152 | return cfilt; |
| 4153 | } |
| 4154 | |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4155 | static void wcd9xxx_enable_mbhc_txfe(struct wcd9xxx_mbhc *mbhc, bool on) |
| 4156 | { |
| 4157 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mbhc_txfe) |
| 4158 | mbhc->mbhc_cb->enable_mbhc_txfe(mbhc->codec, on); |
| 4159 | else |
| 4160 | snd_soc_update_bits(mbhc->codec, WCD9XXX_A_TX_7_MBHC_TEST_CTL, |
| 4161 | 0x40, on ? 0x40 : 0x00); |
| 4162 | } |
| 4163 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4164 | static int wcd9xxx_event_notify(struct notifier_block *self, unsigned long val, |
| 4165 | void *data) |
| 4166 | { |
| 4167 | int ret = 0; |
| 4168 | struct wcd9xxx_mbhc *mbhc = ((struct wcd9xxx_resmgr *)data)->mbhc; |
| 4169 | struct snd_soc_codec *codec = mbhc->codec; |
| 4170 | enum wcd9xxx_notify_event event = (enum wcd9xxx_notify_event)val; |
| 4171 | |
| 4172 | pr_debug("%s: enter event %s(%d)\n", __func__, |
| 4173 | wcd9xxx_get_event_string(event), event); |
| 4174 | |
| 4175 | switch (event) { |
| 4176 | /* MICBIAS usage change */ |
| 4177 | case WCD9XXX_EVENT_PRE_MICBIAS_1_ON: |
| 4178 | case WCD9XXX_EVENT_PRE_MICBIAS_2_ON: |
| 4179 | case WCD9XXX_EVENT_PRE_MICBIAS_3_ON: |
| 4180 | case WCD9XXX_EVENT_PRE_MICBIAS_4_ON: |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4181 | mbhc->int_rbias_on = true; |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4182 | if (mbhc->mbhc_cfg && mbhc->mbhc_cfg->micbias == |
| 4183 | wcd9xxx_event_to_micbias(event)) { |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4184 | wcd9xxx_switch_micbias(mbhc, 0); |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4185 | /* |
| 4186 | * Enable MBHC TxFE whenever micbias is |
| 4187 | * turned ON and polling is active |
| 4188 | */ |
| 4189 | if (mbhc->polling_active) |
| 4190 | wcd9xxx_enable_mbhc_txfe(mbhc, true); |
| 4191 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4192 | break; |
| 4193 | case WCD9XXX_EVENT_POST_MICBIAS_1_ON: |
| 4194 | case WCD9XXX_EVENT_POST_MICBIAS_2_ON: |
| 4195 | case WCD9XXX_EVENT_POST_MICBIAS_3_ON: |
| 4196 | case WCD9XXX_EVENT_POST_MICBIAS_4_ON: |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4197 | if (mbhc->mbhc_cfg && mbhc->mbhc_cfg->micbias == |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4198 | wcd9xxx_event_to_micbias(event) && |
| 4199 | wcd9xxx_mbhc_polling(mbhc)) { |
| 4200 | /* if polling is on, restart it */ |
| 4201 | wcd9xxx_pause_hs_polling(mbhc); |
| 4202 | wcd9xxx_start_hs_polling(mbhc); |
| 4203 | } |
| 4204 | break; |
| 4205 | case WCD9XXX_EVENT_POST_MICBIAS_1_OFF: |
| 4206 | case WCD9XXX_EVENT_POST_MICBIAS_2_OFF: |
| 4207 | case WCD9XXX_EVENT_POST_MICBIAS_3_OFF: |
| 4208 | case WCD9XXX_EVENT_POST_MICBIAS_4_OFF: |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4209 | mbhc->int_rbias_on = false; |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4210 | if (mbhc->mbhc_cfg && mbhc->mbhc_cfg->micbias == |
| 4211 | wcd9xxx_event_to_micbias(event)) { |
| 4212 | if (mbhc->event_state & |
| 4213 | (1 << MBHC_EVENT_PA_HPHL | 1 << MBHC_EVENT_PA_HPHR)) |
| 4214 | wcd9xxx_switch_micbias(mbhc, 1); |
| 4215 | /* |
Yeleswarapu, Nagaradhesh | d1b6af2 | 2013-10-17 11:49:17 +0530 | [diff] [blame] | 4216 | * Disable MBHC TxFE, in case it was enabled earlier |
| 4217 | * when micbias was enabled and polling is not active. |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4218 | */ |
Yeleswarapu, Nagaradhesh | d1b6af2 | 2013-10-17 11:49:17 +0530 | [diff] [blame] | 4219 | if (!mbhc->polling_active) |
| 4220 | wcd9xxx_enable_mbhc_txfe(mbhc, false); |
Bhalchandra Gajare | 2763c72 | 2013-09-11 17:10:22 -0700 | [diff] [blame] | 4221 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4222 | break; |
| 4223 | /* PA usage change */ |
| 4224 | case WCD9XXX_EVENT_PRE_HPHL_PA_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4225 | set_bit(MBHC_EVENT_PA_HPHL, &mbhc->event_state); |
Joonwoo Park | d87ec4c | 2012-10-30 15:44:18 -0700 | [diff] [blame] | 4226 | if (!(snd_soc_read(codec, mbhc->mbhc_bias_regs.ctl_reg) & 0x80)) |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4227 | /* if micbias is not enabled, switch to vddio */ |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4228 | wcd9xxx_switch_micbias(mbhc, 1); |
| 4229 | break; |
| 4230 | case WCD9XXX_EVENT_PRE_HPHR_PA_ON: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4231 | set_bit(MBHC_EVENT_PA_HPHR, &mbhc->event_state); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4232 | break; |
| 4233 | case WCD9XXX_EVENT_POST_HPHL_PA_OFF: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4234 | clear_bit(MBHC_EVENT_PA_HPHL, &mbhc->event_state); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4235 | /* if HPH PAs are off, report OCP and switch back to CFILT */ |
| 4236 | clear_bit(WCD9XXX_HPHL_PA_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 4237 | clear_bit(WCD9XXX_HPHL_DAC_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 4238 | if (mbhc->hph_status & SND_JACK_OC_HPHL) |
| 4239 | hphlocp_off_report(mbhc, SND_JACK_OC_HPHL); |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4240 | if (!(mbhc->event_state & |
Phani Kumar Uppalapati | 7c0bf70 | 2013-11-25 13:39:53 -0800 | [diff] [blame^] | 4241 | (1 << MBHC_EVENT_PA_HPHL | 1 << MBHC_EVENT_PA_HPHR | |
| 4242 | 1 << MBHC_EVENT_PRE_TX_3_ON))) |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4243 | wcd9xxx_switch_micbias(mbhc, 0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4244 | break; |
| 4245 | case WCD9XXX_EVENT_POST_HPHR_PA_OFF: |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4246 | clear_bit(MBHC_EVENT_PA_HPHR, &mbhc->event_state); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4247 | /* if HPH PAs are off, report OCP and switch back to CFILT */ |
| 4248 | clear_bit(WCD9XXX_HPHR_PA_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 4249 | clear_bit(WCD9XXX_HPHR_DAC_OFF_ACK, &mbhc->hph_pa_dac_state); |
| 4250 | if (mbhc->hph_status & SND_JACK_OC_HPHR) |
| 4251 | hphrocp_off_report(mbhc, SND_JACK_OC_HPHL); |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4252 | if (!(mbhc->event_state & |
Phani Kumar Uppalapati | 7c0bf70 | 2013-11-25 13:39:53 -0800 | [diff] [blame^] | 4253 | (1 << MBHC_EVENT_PA_HPHL | 1 << MBHC_EVENT_PA_HPHR | |
| 4254 | 1 << MBHC_EVENT_PRE_TX_3_ON))) |
Joonwoo Park | 2cee50a | 2013-05-15 14:09:06 -0700 | [diff] [blame] | 4255 | wcd9xxx_switch_micbias(mbhc, 0); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4256 | break; |
| 4257 | /* Clock usage change */ |
| 4258 | case WCD9XXX_EVENT_PRE_MCLK_ON: |
| 4259 | break; |
| 4260 | case WCD9XXX_EVENT_POST_MCLK_ON: |
| 4261 | /* Change to lower TxAAF frequency */ |
| 4262 | snd_soc_update_bits(codec, WCD9XXX_A_TX_COM_BIAS, 1 << 4, |
| 4263 | 1 << 4); |
| 4264 | /* Re-calibrate clock rate dependent values */ |
| 4265 | wcd9xxx_update_mbhc_clk_rate(mbhc, mbhc->mbhc_cfg->mclk_rate); |
| 4266 | /* If clock source changes, stop and restart polling */ |
| 4267 | if (wcd9xxx_mbhc_polling(mbhc)) { |
| 4268 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 4269 | wcd9xxx_start_hs_polling(mbhc); |
| 4270 | } |
| 4271 | break; |
| 4272 | case WCD9XXX_EVENT_PRE_MCLK_OFF: |
| 4273 | /* If clock source changes, stop and restart polling */ |
| 4274 | if (wcd9xxx_mbhc_polling(mbhc)) |
| 4275 | wcd9xxx_pause_hs_polling(mbhc); |
| 4276 | break; |
| 4277 | case WCD9XXX_EVENT_POST_MCLK_OFF: |
| 4278 | break; |
| 4279 | case WCD9XXX_EVENT_PRE_RCO_ON: |
| 4280 | break; |
| 4281 | case WCD9XXX_EVENT_POST_RCO_ON: |
| 4282 | /* Change to higher TxAAF frequency */ |
| 4283 | snd_soc_update_bits(codec, WCD9XXX_A_TX_COM_BIAS, 1 << 4, |
| 4284 | 0 << 4); |
| 4285 | /* Re-calibrate clock rate dependent values */ |
Phani Kumar Uppalapati | 43bc415 | 2013-05-24 00:44:20 -0700 | [diff] [blame] | 4286 | wcd9xxx_update_mbhc_clk_rate(mbhc, mbhc->rco_clk_rate); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4287 | /* If clock source changes, stop and restart polling */ |
| 4288 | if (wcd9xxx_mbhc_polling(mbhc)) { |
| 4289 | wcd9xxx_calibrate_hs_polling(mbhc); |
| 4290 | wcd9xxx_start_hs_polling(mbhc); |
| 4291 | } |
| 4292 | break; |
| 4293 | case WCD9XXX_EVENT_PRE_RCO_OFF: |
| 4294 | /* If clock source changes, stop and restart polling */ |
| 4295 | if (wcd9xxx_mbhc_polling(mbhc)) |
| 4296 | wcd9xxx_pause_hs_polling(mbhc); |
| 4297 | break; |
| 4298 | case WCD9XXX_EVENT_POST_RCO_OFF: |
| 4299 | break; |
| 4300 | /* CFILT usage change */ |
| 4301 | case WCD9XXX_EVENT_PRE_CFILT_1_ON: |
| 4302 | case WCD9XXX_EVENT_PRE_CFILT_2_ON: |
| 4303 | case WCD9XXX_EVENT_PRE_CFILT_3_ON: |
| 4304 | if (wcd9xxx_get_mbhc_cfilt_sel(mbhc) == |
| 4305 | wcd9xxx_event_to_cfilt(event)) |
| 4306 | /* |
| 4307 | * Switch CFILT to slow mode if MBHC CFILT is being |
| 4308 | * used. |
| 4309 | */ |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 4310 | wcd9xxx_codec_switch_cfilt_mode(mbhc, false); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4311 | break; |
| 4312 | case WCD9XXX_EVENT_POST_CFILT_1_OFF: |
| 4313 | case WCD9XXX_EVENT_POST_CFILT_2_OFF: |
| 4314 | case WCD9XXX_EVENT_POST_CFILT_3_OFF: |
| 4315 | if (wcd9xxx_get_mbhc_cfilt_sel(mbhc) == |
| 4316 | wcd9xxx_event_to_cfilt(event)) |
| 4317 | /* |
| 4318 | * Switch CFILT to fast mode if MBHC CFILT is not |
| 4319 | * used anymore. |
| 4320 | */ |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 4321 | wcd9xxx_codec_switch_cfilt_mode(mbhc, true); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4322 | break; |
| 4323 | /* System resume */ |
| 4324 | case WCD9XXX_EVENT_POST_RESUME: |
| 4325 | mbhc->mbhc_last_resume = jiffies; |
| 4326 | break; |
| 4327 | /* BG mode chage */ |
| 4328 | case WCD9XXX_EVENT_PRE_BG_OFF: |
| 4329 | case WCD9XXX_EVENT_POST_BG_OFF: |
| 4330 | case WCD9XXX_EVENT_PRE_BG_AUDIO_ON: |
| 4331 | case WCD9XXX_EVENT_POST_BG_AUDIO_ON: |
| 4332 | case WCD9XXX_EVENT_PRE_BG_MBHC_ON: |
| 4333 | case WCD9XXX_EVENT_POST_BG_MBHC_ON: |
| 4334 | /* Not used for now */ |
| 4335 | break; |
Phani Kumar Uppalapati | 7c0bf70 | 2013-11-25 13:39:53 -0800 | [diff] [blame^] | 4336 | case WCD9XXX_EVENT_PRE_TX_3_ON: |
| 4337 | /* |
| 4338 | * if polling is ON, mbhc micbias not enabled |
| 4339 | * switch micbias source to VDDIO |
| 4340 | */ |
| 4341 | set_bit(MBHC_EVENT_PRE_TX_3_ON, &mbhc->event_state); |
| 4342 | if (!(snd_soc_read(codec, mbhc->mbhc_bias_regs.ctl_reg) |
| 4343 | & 0x80) && |
| 4344 | mbhc->polling_active && !mbhc->mbhc_micbias_switched) |
| 4345 | wcd9xxx_switch_micbias(mbhc, 1); |
| 4346 | break; |
| 4347 | case WCD9XXX_EVENT_POST_TX_3_OFF: |
| 4348 | /* |
| 4349 | * Switch back to micbias if HPH PA or TX3 path |
| 4350 | * is disabled |
| 4351 | */ |
| 4352 | clear_bit(MBHC_EVENT_PRE_TX_3_ON, &mbhc->event_state); |
| 4353 | if (mbhc->polling_active && mbhc->mbhc_micbias_switched && |
| 4354 | !(mbhc->event_state & (1 << MBHC_EVENT_PA_HPHL | |
| 4355 | 1 << MBHC_EVENT_PA_HPHR))) |
| 4356 | wcd9xxx_switch_micbias(mbhc, 0); |
| 4357 | break; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4358 | default: |
| 4359 | WARN(1, "Unknown event %d\n", event); |
| 4360 | ret = -EINVAL; |
| 4361 | } |
| 4362 | |
| 4363 | pr_debug("%s: leave\n", __func__); |
| 4364 | |
Simmi Pateriya | 0a44d84 | 2013-04-03 01:12:42 +0530 | [diff] [blame] | 4365 | return ret; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4366 | } |
| 4367 | |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4368 | static int wcd9xxx_detect_impedance(struct wcd9xxx_mbhc *mbhc, uint32_t *zl, |
| 4369 | uint32_t *zr) |
| 4370 | { |
| 4371 | int i; |
| 4372 | int ret = 0; |
| 4373 | s16 l[3], r[3]; |
| 4374 | s16 *z[] = { |
| 4375 | &l[0], &r[0], &r[1], &l[1], &l[2], &r[2], |
| 4376 | }; |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4377 | struct snd_soc_codec *codec = mbhc->codec; |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4378 | const int mux_wait_us = 25; |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4379 | const struct wcd9xxx_reg_mask_val reg_set_mux[] = { |
| 4380 | /* Phase 1 */ |
| 4381 | /* Set MBHC_MUX for HPHL without ical */ |
| 4382 | {WCD9XXX_A_MBHC_SCALING_MUX_2, 0xFF, 0xF0}, |
| 4383 | /* Set MBHC_MUX for HPHR without ical */ |
| 4384 | {WCD9XXX_A_MBHC_SCALING_MUX_1, 0xFF, 0xA0}, |
| 4385 | /* Set MBHC_MUX for HPHR with ical */ |
| 4386 | {WCD9XXX_A_MBHC_SCALING_MUX_2, 0xFF, 0xF8}, |
| 4387 | /* Set MBHC_MUX for HPHL with ical */ |
| 4388 | {WCD9XXX_A_MBHC_SCALING_MUX_1, 0xFF, 0xC0}, |
| 4389 | |
| 4390 | /* Phase 2 */ |
| 4391 | {WCD9XXX_A_MBHC_SCALING_MUX_2, 0xFF, 0xF0}, |
| 4392 | /* Set MBHC_MUX for HPHR without ical and wait for 25us */ |
| 4393 | {WCD9XXX_A_MBHC_SCALING_MUX_1, 0xFF, 0xA0}, |
| 4394 | }; |
| 4395 | |
| 4396 | pr_debug("%s: enter\n", __func__); |
| 4397 | WCD9XXX_BCL_ASSERT_LOCKED(mbhc->resmgr); |
| 4398 | |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4399 | if (!mbhc->mbhc_cb || !mbhc->mbhc_cb->setup_zdet || |
| 4400 | !mbhc->mbhc_cb->compute_impedance || !zl || |
| 4401 | !zr) |
| 4402 | return -EINVAL; |
| 4403 | |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4404 | /* |
| 4405 | * Impedance detection is an intrusive function as it mutes RX paths, |
| 4406 | * enable PAs and etc. Therefore codec drvier including ALSA |
| 4407 | * shouldn't read and write hardware registers during detection. |
| 4408 | */ |
| 4409 | mutex_lock(&codec->mutex); |
| 4410 | |
Bhalchandra Gajare | bbc3274 | 2013-10-18 12:32:29 -0700 | [diff] [blame] | 4411 | wcd9xxx_onoff_ext_mclk(mbhc, true); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4412 | |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 4413 | wcd9xxx_turn_onoff_override(mbhc, true); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4414 | pr_debug("%s: Setting impedance detection\n", __func__); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4415 | |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4416 | /* Codec specific setup for L0, R0, L1 and R1 measurements */ |
| 4417 | mbhc->mbhc_cb->setup_zdet(mbhc, PRE_MEAS); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4418 | |
| 4419 | pr_debug("%s: Performing impedance detection\n", __func__); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4420 | for (i = 0; i < ARRAY_SIZE(reg_set_mux) - 2; i++) { |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4421 | snd_soc_update_bits(codec, reg_set_mux[i].reg, |
| 4422 | reg_set_mux[i].mask, |
| 4423 | reg_set_mux[i].val); |
| 4424 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 4425 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 4426 | else |
| 4427 | snd_soc_update_bits(codec, |
| 4428 | WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 4429 | 0x80, 0x80); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4430 | /* 25us is required after mux change to settle down */ |
| 4431 | usleep_range(mux_wait_us, |
| 4432 | mux_wait_us + WCD9XXX_USLEEP_RANGE_MARGIN_US); |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4433 | *(z[i]) = __wcd9xxx_codec_sta_dce(mbhc, 0, true, false); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4434 | } |
| 4435 | |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4436 | /* Codec specific setup for L2 and R2 measurements */ |
| 4437 | mbhc->mbhc_cb->setup_zdet(mbhc, POST_MEAS); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4438 | |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4439 | for (; i < ARRAY_SIZE(reg_set_mux); i++) { |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4440 | snd_soc_update_bits(codec, reg_set_mux[i].reg, |
| 4441 | reg_set_mux[i].mask, |
| 4442 | reg_set_mux[i].val); |
| 4443 | if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mux_bias_block) |
| 4444 | mbhc->mbhc_cb->enable_mux_bias_block(codec); |
| 4445 | else |
| 4446 | snd_soc_update_bits(codec, |
| 4447 | WCD9XXX_A_MBHC_SCALING_MUX_1, |
| 4448 | 0x80, 0x80); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4449 | /* 25us is required after mux change to settle down */ |
| 4450 | usleep_range(mux_wait_us, |
| 4451 | mux_wait_us + WCD9XXX_USLEEP_RANGE_MARGIN_US); |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4452 | *(z[i]) = __wcd9xxx_codec_sta_dce(mbhc, 0, true, false); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4453 | } |
| 4454 | |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4455 | mbhc->mbhc_cb->setup_zdet(mbhc, PA_DISABLE); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4456 | |
| 4457 | mutex_unlock(&codec->mutex); |
| 4458 | |
Bhalchandra Gajare | bbc3274 | 2013-10-18 12:32:29 -0700 | [diff] [blame] | 4459 | wcd9xxx_onoff_ext_mclk(mbhc, false); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4460 | |
Bhalchandra Gajare | dd01bf3 | 2013-09-05 14:00:29 -0700 | [diff] [blame] | 4461 | wcd9xxx_turn_onoff_override(mbhc, false); |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4462 | mbhc->mbhc_cb->compute_impedance(l, r, zl, zr); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4463 | |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4464 | pr_debug("%s: L0: 0x%x(%d), L1: 0x%x(%d), L2: 0x%x(%d)\n", |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4465 | __func__, |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4466 | l[0] & 0xffff, l[0], l[1] & 0xffff, l[1], l[2] & 0xffff, l[2]); |
| 4467 | pr_debug("%s: R0: 0x%x(%d), R1: 0x%x(%d), R2: 0x%x(%d)\n", |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4468 | __func__, |
Phani Kumar Uppalapati | 01a77e1 | 2013-08-08 15:31:35 -0700 | [diff] [blame] | 4469 | r[0] & 0xffff, r[0], r[1] & 0xffff, r[1], r[2] & 0xffff, r[2]); |
Joonwoo Park | b755e9e | 2013-05-28 13:14:05 -0700 | [diff] [blame] | 4470 | pr_debug("%s: RL %d milliohm, RR %d milliohm\n", __func__, *zl, *zr); |
| 4471 | pr_debug("%s: Impedance detection completed\n", __func__); |
| 4472 | |
| 4473 | return ret; |
| 4474 | } |
| 4475 | |
| 4476 | int wcd9xxx_mbhc_get_impedance(struct wcd9xxx_mbhc *mbhc, uint32_t *zl, |
| 4477 | uint32_t *zr) |
| 4478 | { |
| 4479 | WCD9XXX_BCL_LOCK(mbhc->resmgr); |
| 4480 | *zl = mbhc->zl; |
| 4481 | *zr = mbhc->zr; |
| 4482 | WCD9XXX_BCL_UNLOCK(mbhc->resmgr); |
| 4483 | |
| 4484 | if (*zl && *zr) |
| 4485 | return 0; |
| 4486 | else |
| 4487 | return -EINVAL; |
| 4488 | } |
| 4489 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4490 | /* |
| 4491 | * wcd9xxx_mbhc_init : initialize MBHC internal structures. |
| 4492 | * |
| 4493 | * NOTE: mbhc->mbhc_cfg is not YET configure so shouldn't be used |
| 4494 | */ |
| 4495 | int wcd9xxx_mbhc_init(struct wcd9xxx_mbhc *mbhc, struct wcd9xxx_resmgr *resmgr, |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 4496 | struct snd_soc_codec *codec, |
| 4497 | int (*micbias_enable_cb) (struct snd_soc_codec*, bool), |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4498 | const struct wcd9xxx_mbhc_cb *mbhc_cb, |
| 4499 | const struct wcd9xxx_mbhc_intr *mbhc_cdc_intr_ids, |
| 4500 | int rco_clk_rate, |
Phani Kumar Uppalapati | d7549e1 | 2013-07-12 22:22:03 -0700 | [diff] [blame] | 4501 | bool impedance_det_en) |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4502 | { |
| 4503 | int ret; |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4504 | void *core_res; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4505 | |
| 4506 | pr_debug("%s: enter\n", __func__); |
| 4507 | memset(&mbhc->mbhc_bias_regs, 0, sizeof(struct mbhc_micbias_regs)); |
| 4508 | memset(&mbhc->mbhc_data, 0, sizeof(struct mbhc_internal_cal_data)); |
| 4509 | |
| 4510 | mbhc->mbhc_data.t_sta_dce = DEFAULT_DCE_STA_WAIT; |
| 4511 | mbhc->mbhc_data.t_dce = DEFAULT_DCE_WAIT; |
| 4512 | mbhc->mbhc_data.t_sta = DEFAULT_STA_WAIT; |
| 4513 | mbhc->mbhc_micbias_switched = false; |
| 4514 | mbhc->polling_active = false; |
| 4515 | mbhc->mbhc_state = MBHC_STATE_NONE; |
| 4516 | mbhc->in_swch_irq_handler = false; |
| 4517 | mbhc->current_plug = PLUG_TYPE_NONE; |
| 4518 | mbhc->lpi_enabled = false; |
| 4519 | mbhc->no_mic_headset_override = false; |
| 4520 | mbhc->mbhc_last_resume = 0; |
| 4521 | mbhc->codec = codec; |
| 4522 | mbhc->resmgr = resmgr; |
| 4523 | mbhc->resmgr->mbhc = mbhc; |
Joonwoo Park | ccccba7 | 2013-04-26 11:19:46 -0700 | [diff] [blame] | 4524 | mbhc->micbias_enable_cb = micbias_enable_cb; |
Phani Kumar Uppalapati | 43bc415 | 2013-05-24 00:44:20 -0700 | [diff] [blame] | 4525 | mbhc->rco_clk_rate = rco_clk_rate; |
Simmi Pateriya | 95466b1 | 2013-05-09 20:08:46 +0530 | [diff] [blame] | 4526 | mbhc->mbhc_cb = mbhc_cb; |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4527 | mbhc->intr_ids = mbhc_cdc_intr_ids; |
Phani Kumar Uppalapati | d7549e1 | 2013-07-12 22:22:03 -0700 | [diff] [blame] | 4528 | mbhc->impedance_detect = impedance_det_en; |
Simmi Pateriya | f8e9f68 | 2013-10-24 02:15:52 +0530 | [diff] [blame] | 4529 | mbhc->int_rbias_on = false; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4530 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4531 | if (mbhc->intr_ids == NULL) { |
| 4532 | pr_err("%s: Interrupt mapping not provided\n", __func__); |
| 4533 | return -EINVAL; |
| 4534 | } |
| 4535 | |
Ravishankar Sarawadi | 2293efe | 2013-01-11 16:37:23 -0800 | [diff] [blame] | 4536 | if (mbhc->headset_jack.jack == NULL) { |
| 4537 | ret = snd_soc_jack_new(codec, "Headset Jack", WCD9XXX_JACK_MASK, |
| 4538 | &mbhc->headset_jack); |
| 4539 | if (ret) { |
| 4540 | pr_err("%s: Failed to create new jack\n", __func__); |
| 4541 | return ret; |
| 4542 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4543 | |
Ravishankar Sarawadi | 2293efe | 2013-01-11 16:37:23 -0800 | [diff] [blame] | 4544 | ret = snd_soc_jack_new(codec, "Button Jack", |
| 4545 | WCD9XXX_JACK_BUTTON_MASK, |
| 4546 | &mbhc->button_jack); |
| 4547 | if (ret) { |
| 4548 | pr_err("Failed to create new jack\n"); |
| 4549 | return ret; |
| 4550 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4551 | |
Phani Kumar Uppalapati | 447a829 | 2013-07-26 16:26:04 -0700 | [diff] [blame] | 4552 | ret = snd_jack_set_key(mbhc->button_jack.jack, |
| 4553 | SND_JACK_BTN_0, |
| 4554 | KEY_MEDIA); |
| 4555 | if (ret) { |
| 4556 | pr_err("%s: Failed to set code for btn-0\n", |
| 4557 | __func__); |
| 4558 | return ret; |
| 4559 | } |
| 4560 | |
Ravishankar Sarawadi | 2293efe | 2013-01-11 16:37:23 -0800 | [diff] [blame] | 4561 | INIT_DELAYED_WORK(&mbhc->mbhc_firmware_dwork, |
| 4562 | wcd9xxx_mbhc_fw_read); |
| 4563 | INIT_DELAYED_WORK(&mbhc->mbhc_btn_dwork, wcd9xxx_btn_lpress_fn); |
| 4564 | INIT_DELAYED_WORK(&mbhc->mbhc_insert_dwork, |
| 4565 | wcd9xxx_mbhc_insert_work); |
| 4566 | } |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4567 | |
| 4568 | /* Register event notifier */ |
| 4569 | mbhc->nblock.notifier_call = wcd9xxx_event_notify; |
| 4570 | ret = wcd9xxx_resmgr_register_notifier(mbhc->resmgr, &mbhc->nblock); |
| 4571 | if (ret) { |
| 4572 | pr_err("%s: Failed to register notifier %d\n", __func__, ret); |
| 4573 | return ret; |
| 4574 | } |
| 4575 | |
| 4576 | wcd9xxx_init_debugfs(mbhc); |
| 4577 | |
Bhalchandra Gajare | bbc3274 | 2013-10-18 12:32:29 -0700 | [diff] [blame] | 4578 | |
| 4579 | /* Disable Impedance detection by default for certain codec types */ |
| 4580 | if (mbhc->mbhc_cb && |
| 4581 | mbhc->mbhc_cb->get_cdc_type() == WCD9XXX_CDC_TYPE_HELICON) |
| 4582 | impedance_detect_en = 0; |
| 4583 | else |
| 4584 | impedance_detect_en = impedance_det_en ? 1 : 0; |
| 4585 | |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4586 | core_res = mbhc->resmgr->core_res; |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4587 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->insertion, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4588 | wcd9xxx_hs_insert_irq, |
| 4589 | "Headset insert detect", mbhc); |
| 4590 | if (ret) { |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4591 | pr_err("%s: Failed to request irq %d, ret = %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4592 | mbhc->intr_ids->insertion, ret); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4593 | goto err_insert_irq; |
| 4594 | } |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4595 | wcd9xxx_disable_irq(core_res, mbhc->intr_ids->insertion); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4596 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4597 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->poll_plug_rem, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4598 | wcd9xxx_hs_remove_irq, |
| 4599 | "Headset remove detect", mbhc); |
| 4600 | if (ret) { |
| 4601 | pr_err("%s: Failed to request irq %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4602 | mbhc->intr_ids->poll_plug_rem); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4603 | goto err_remove_irq; |
| 4604 | } |
| 4605 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4606 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->dce_est_complete, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4607 | wcd9xxx_dce_handler, "DC Estimation detect", |
| 4608 | mbhc); |
| 4609 | if (ret) { |
| 4610 | pr_err("%s: Failed to request irq %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4611 | mbhc->intr_ids->dce_est_complete); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4612 | goto err_potential_irq; |
| 4613 | } |
| 4614 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4615 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->button_release, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4616 | wcd9xxx_release_handler, |
| 4617 | "Button Release detect", mbhc); |
| 4618 | if (ret) { |
| 4619 | pr_err("%s: Failed to request irq %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4620 | mbhc->intr_ids->button_release); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4621 | goto err_release_irq; |
| 4622 | } |
| 4623 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4624 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->hph_left_ocp, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4625 | wcd9xxx_hphl_ocp_irq, "HPH_L OCP detect", |
| 4626 | mbhc); |
| 4627 | if (ret) { |
| 4628 | pr_err("%s: Failed to request irq %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4629 | mbhc->intr_ids->hph_left_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4630 | goto err_hphl_ocp_irq; |
| 4631 | } |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4632 | wcd9xxx_disable_irq(core_res, mbhc->intr_ids->hph_left_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4633 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4634 | ret = wcd9xxx_request_irq(core_res, mbhc->intr_ids->hph_right_ocp, |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4635 | wcd9xxx_hphr_ocp_irq, "HPH_R OCP detect", |
| 4636 | mbhc); |
| 4637 | if (ret) { |
| 4638 | pr_err("%s: Failed to request irq %d\n", __func__, |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4639 | mbhc->intr_ids->hph_right_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4640 | goto err_hphr_ocp_irq; |
| 4641 | } |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4642 | wcd9xxx_disable_irq(core_res, mbhc->intr_ids->hph_right_ocp); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4643 | |
Joonwoo Park | 3b268ca | 2013-07-17 13:11:43 -0700 | [diff] [blame] | 4644 | wcd9xxx_regmgr_cond_register(resmgr, 1 << WCD9XXX_COND_HPH_MIC | |
| 4645 | 1 << WCD9XXX_COND_HPH); |
| 4646 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4647 | pr_debug("%s: leave ret %d\n", __func__, ret); |
| 4648 | return ret; |
| 4649 | |
| 4650 | err_hphr_ocp_irq: |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4651 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->hph_left_ocp, mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4652 | err_hphl_ocp_irq: |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4653 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->button_release, mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4654 | err_release_irq: |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4655 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->dce_est_complete, mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4656 | err_potential_irq: |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4657 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->poll_plug_rem, mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4658 | err_remove_irq: |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4659 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->insertion, mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4660 | err_insert_irq: |
| 4661 | wcd9xxx_resmgr_unregister_notifier(mbhc->resmgr, &mbhc->nblock); |
| 4662 | |
| 4663 | pr_debug("%s: leave ret %d\n", __func__, ret); |
| 4664 | return ret; |
| 4665 | } |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4666 | EXPORT_SYMBOL(wcd9xxx_mbhc_init); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4667 | |
| 4668 | void wcd9xxx_mbhc_deinit(struct wcd9xxx_mbhc *mbhc) |
| 4669 | { |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4670 | struct wcd9xxx_core_resource *core_res = |
| 4671 | mbhc->resmgr->core_res; |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4672 | |
Joonwoo Park | 3b268ca | 2013-07-17 13:11:43 -0700 | [diff] [blame] | 4673 | wcd9xxx_regmgr_cond_deregister(mbhc->resmgr, 1 << WCD9XXX_COND_HPH_MIC | |
| 4674 | 1 << WCD9XXX_COND_HPH); |
| 4675 | |
Bhalchandra Gajare | 1674893 | 2013-10-01 18:16:05 -0700 | [diff] [blame] | 4676 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->button_release, mbhc); |
| 4677 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->dce_est_complete, mbhc); |
| 4678 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->poll_plug_rem, mbhc); |
| 4679 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->insertion, mbhc); |
| 4680 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->hs_jack_switch, mbhc); |
| 4681 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->hph_left_ocp, mbhc); |
| 4682 | wcd9xxx_free_irq(core_res, mbhc->intr_ids->hph_right_ocp, mbhc); |
Ravishankar Sarawadi | 2293efe | 2013-01-11 16:37:23 -0800 | [diff] [blame] | 4683 | |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4684 | wcd9xxx_resmgr_unregister_notifier(mbhc->resmgr, &mbhc->nblock); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4685 | wcd9xxx_cleanup_debugfs(mbhc); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4686 | } |
Bhalchandra Gajare | 9b4eb3b | 2013-04-30 12:00:41 -0700 | [diff] [blame] | 4687 | EXPORT_SYMBOL(wcd9xxx_mbhc_deinit); |
Joonwoo Park | a889026 | 2012-10-15 12:04:27 -0700 | [diff] [blame] | 4688 | |
| 4689 | MODULE_DESCRIPTION("wcd9xxx MBHC module"); |
| 4690 | MODULE_LICENSE("GPL v2"); |