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