Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * SH-Mobile High-Definition Multimedia Interface (HDMI) driver |
| 3 | * for SLISHDMI13T and SLIPHDMIT IP cores |
| 4 | * |
| 5 | * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/clk.h> |
| 13 | #include <linux/console.h> |
| 14 | #include <linux/delay.h> |
| 15 | #include <linux/err.h> |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/interrupt.h> |
| 18 | #include <linux/io.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/pm_runtime.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/types.h> |
| 24 | #include <linux/workqueue.h> |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 25 | #include <sound/soc-dapm.h> |
| 26 | #include <sound/initval.h> |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 27 | |
| 28 | #include <video/sh_mobile_hdmi.h> |
| 29 | #include <video/sh_mobile_lcdc.h> |
| 30 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 31 | #include "sh_mobile_lcdcfb.h" |
| 32 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 33 | #define HDMI_SYSTEM_CTRL 0x00 /* System control */ |
| 34 | #define HDMI_L_R_DATA_SWAP_CTRL_RPKT 0x01 /* L/R data swap control, |
| 35 | bits 19..16 of 20-bit N for Audio Clock Regeneration packet */ |
| 36 | #define HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8 0x02 /* bits 15..8 of 20-bit N for Audio Clock Regeneration packet */ |
| 37 | #define HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0 0x03 /* bits 7..0 of 20-bit N for Audio Clock Regeneration packet */ |
| 38 | #define HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS 0x04 /* SPDIF audio sampling frequency, |
| 39 | bits 19..16 of Internal CTS */ |
| 40 | #define HDMI_INTERNAL_CTS_15_8 0x05 /* bits 15..8 of Internal CTS */ |
| 41 | #define HDMI_INTERNAL_CTS_7_0 0x06 /* bits 7..0 of Internal CTS */ |
| 42 | #define HDMI_EXTERNAL_CTS_19_16 0x07 /* External CTS */ |
| 43 | #define HDMI_EXTERNAL_CTS_15_8 0x08 /* External CTS */ |
| 44 | #define HDMI_EXTERNAL_CTS_7_0 0x09 /* External CTS */ |
| 45 | #define HDMI_AUDIO_SETTING_1 0x0A /* Audio setting.1 */ |
| 46 | #define HDMI_AUDIO_SETTING_2 0x0B /* Audio setting.2 */ |
| 47 | #define HDMI_I2S_AUDIO_SET 0x0C /* I2S audio setting */ |
| 48 | #define HDMI_DSD_AUDIO_SET 0x0D /* DSD audio setting */ |
| 49 | #define HDMI_DEBUG_MONITOR_1 0x0E /* Debug monitor.1 */ |
| 50 | #define HDMI_DEBUG_MONITOR_2 0x0F /* Debug monitor.2 */ |
| 51 | #define HDMI_I2S_INPUT_PIN_SWAP 0x10 /* I2S input pin swap */ |
| 52 | #define HDMI_AUDIO_STATUS_BITS_SETTING_1 0x11 /* Audio status bits setting.1 */ |
| 53 | #define HDMI_AUDIO_STATUS_BITS_SETTING_2 0x12 /* Audio status bits setting.2 */ |
| 54 | #define HDMI_CATEGORY_CODE 0x13 /* Category code */ |
| 55 | #define HDMI_SOURCE_NUM_AUDIO_WORD_LEN 0x14 /* Source number/Audio word length */ |
| 56 | #define HDMI_AUDIO_VIDEO_SETTING_1 0x15 /* Audio/Video setting.1 */ |
| 57 | #define HDMI_VIDEO_SETTING_1 0x16 /* Video setting.1 */ |
| 58 | #define HDMI_DEEP_COLOR_MODES 0x17 /* Deep Color Modes */ |
| 59 | |
| 60 | /* 12 16- and 10-bit Color space conversion parameters: 0x18..0x2f */ |
| 61 | #define HDMI_COLOR_SPACE_CONVERSION_PARAMETERS 0x18 |
| 62 | |
| 63 | #define HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS 0x30 /* External video parameter settings */ |
| 64 | #define HDMI_EXTERNAL_H_TOTAL_7_0 0x31 /* External horizontal total (LSB) */ |
| 65 | #define HDMI_EXTERNAL_H_TOTAL_11_8 0x32 /* External horizontal total (MSB) */ |
| 66 | #define HDMI_EXTERNAL_H_BLANK_7_0 0x33 /* External horizontal blank (LSB) */ |
| 67 | #define HDMI_EXTERNAL_H_BLANK_9_8 0x34 /* External horizontal blank (MSB) */ |
| 68 | #define HDMI_EXTERNAL_H_DELAY_7_0 0x35 /* External horizontal delay (LSB) */ |
| 69 | #define HDMI_EXTERNAL_H_DELAY_9_8 0x36 /* External horizontal delay (MSB) */ |
| 70 | #define HDMI_EXTERNAL_H_DURATION_7_0 0x37 /* External horizontal duration (LSB) */ |
| 71 | #define HDMI_EXTERNAL_H_DURATION_9_8 0x38 /* External horizontal duration (MSB) */ |
| 72 | #define HDMI_EXTERNAL_V_TOTAL_7_0 0x39 /* External vertical total (LSB) */ |
| 73 | #define HDMI_EXTERNAL_V_TOTAL_9_8 0x3A /* External vertical total (MSB) */ |
| 74 | #define HDMI_AUDIO_VIDEO_SETTING_2 0x3B /* Audio/Video setting.2 */ |
| 75 | #define HDMI_EXTERNAL_V_BLANK 0x3D /* External vertical blank */ |
| 76 | #define HDMI_EXTERNAL_V_DELAY 0x3E /* External vertical delay */ |
| 77 | #define HDMI_EXTERNAL_V_DURATION 0x3F /* External vertical duration */ |
| 78 | #define HDMI_CTRL_PKT_MANUAL_SEND_CONTROL 0x40 /* Control packet manual send control */ |
| 79 | #define HDMI_CTRL_PKT_AUTO_SEND 0x41 /* Control packet auto send with VSYNC control */ |
| 80 | #define HDMI_AUTO_CHECKSUM_OPTION 0x42 /* Auto checksum option */ |
| 81 | #define HDMI_VIDEO_SETTING_2 0x45 /* Video setting.2 */ |
| 82 | #define HDMI_OUTPUT_OPTION 0x46 /* Output option */ |
| 83 | #define HDMI_SLIPHDMIT_PARAM_OPTION 0x51 /* SLIPHDMIT parameter option */ |
| 84 | #define HDMI_HSYNC_PMENT_AT_EMB_7_0 0x52 /* HSYNC placement at embedded sync (LSB) */ |
| 85 | #define HDMI_HSYNC_PMENT_AT_EMB_15_8 0x53 /* HSYNC placement at embedded sync (MSB) */ |
| 86 | #define HDMI_VSYNC_PMENT_AT_EMB_7_0 0x54 /* VSYNC placement at embedded sync (LSB) */ |
| 87 | #define HDMI_VSYNC_PMENT_AT_EMB_14_8 0x55 /* VSYNC placement at embedded sync (MSB) */ |
| 88 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_1 0x56 /* SLIPHDMIT parameter settings.1 */ |
| 89 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_2 0x57 /* SLIPHDMIT parameter settings.2 */ |
| 90 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_3 0x58 /* SLIPHDMIT parameter settings.3 */ |
| 91 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_5 0x59 /* SLIPHDMIT parameter settings.5 */ |
| 92 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_6 0x5A /* SLIPHDMIT parameter settings.6 */ |
| 93 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_7 0x5B /* SLIPHDMIT parameter settings.7 */ |
| 94 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_8 0x5C /* SLIPHDMIT parameter settings.8 */ |
| 95 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_9 0x5D /* SLIPHDMIT parameter settings.9 */ |
| 96 | #define HDMI_SLIPHDMIT_PARAM_SETTINGS_10 0x5E /* SLIPHDMIT parameter settings.10 */ |
| 97 | #define HDMI_CTRL_PKT_BUF_INDEX 0x5F /* Control packet buffer index */ |
| 98 | #define HDMI_CTRL_PKT_BUF_ACCESS_HB0 0x60 /* Control packet data buffer access window - HB0 */ |
| 99 | #define HDMI_CTRL_PKT_BUF_ACCESS_HB1 0x61 /* Control packet data buffer access window - HB1 */ |
| 100 | #define HDMI_CTRL_PKT_BUF_ACCESS_HB2 0x62 /* Control packet data buffer access window - HB2 */ |
| 101 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB0 0x63 /* Control packet data buffer access window - PB0 */ |
| 102 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB1 0x64 /* Control packet data buffer access window - PB1 */ |
| 103 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB2 0x65 /* Control packet data buffer access window - PB2 */ |
| 104 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB3 0x66 /* Control packet data buffer access window - PB3 */ |
| 105 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB4 0x67 /* Control packet data buffer access window - PB4 */ |
| 106 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB5 0x68 /* Control packet data buffer access window - PB5 */ |
| 107 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB6 0x69 /* Control packet data buffer access window - PB6 */ |
| 108 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB7 0x6A /* Control packet data buffer access window - PB7 */ |
| 109 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB8 0x6B /* Control packet data buffer access window - PB8 */ |
| 110 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB9 0x6C /* Control packet data buffer access window - PB9 */ |
| 111 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB10 0x6D /* Control packet data buffer access window - PB10 */ |
| 112 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB11 0x6E /* Control packet data buffer access window - PB11 */ |
| 113 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB12 0x6F /* Control packet data buffer access window - PB12 */ |
| 114 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB13 0x70 /* Control packet data buffer access window - PB13 */ |
| 115 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB14 0x71 /* Control packet data buffer access window - PB14 */ |
| 116 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB15 0x72 /* Control packet data buffer access window - PB15 */ |
| 117 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB16 0x73 /* Control packet data buffer access window - PB16 */ |
| 118 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB17 0x74 /* Control packet data buffer access window - PB17 */ |
| 119 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB18 0x75 /* Control packet data buffer access window - PB18 */ |
| 120 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB19 0x76 /* Control packet data buffer access window - PB19 */ |
| 121 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB20 0x77 /* Control packet data buffer access window - PB20 */ |
| 122 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB21 0x78 /* Control packet data buffer access window - PB21 */ |
| 123 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB22 0x79 /* Control packet data buffer access window - PB22 */ |
| 124 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB23 0x7A /* Control packet data buffer access window - PB23 */ |
| 125 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB24 0x7B /* Control packet data buffer access window - PB24 */ |
| 126 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB25 0x7C /* Control packet data buffer access window - PB25 */ |
| 127 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB26 0x7D /* Control packet data buffer access window - PB26 */ |
| 128 | #define HDMI_CTRL_PKT_BUF_ACCESS_PB27 0x7E /* Control packet data buffer access window - PB27 */ |
| 129 | #define HDMI_EDID_KSV_FIFO_ACCESS_WINDOW 0x80 /* EDID/KSV FIFO access window */ |
| 130 | #define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_7_0 0x81 /* DDC bus access frequency control (LSB) */ |
| 131 | #define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_15_8 0x82 /* DDC bus access frequency control (MSB) */ |
| 132 | #define HDMI_INTERRUPT_MASK_1 0x92 /* Interrupt mask.1 */ |
| 133 | #define HDMI_INTERRUPT_MASK_2 0x93 /* Interrupt mask.2 */ |
| 134 | #define HDMI_INTERRUPT_STATUS_1 0x94 /* Interrupt status.1 */ |
| 135 | #define HDMI_INTERRUPT_STATUS_2 0x95 /* Interrupt status.2 */ |
| 136 | #define HDMI_INTERRUPT_MASK_3 0x96 /* Interrupt mask.3 */ |
| 137 | #define HDMI_INTERRUPT_MASK_4 0x97 /* Interrupt mask.4 */ |
| 138 | #define HDMI_INTERRUPT_STATUS_3 0x98 /* Interrupt status.3 */ |
| 139 | #define HDMI_INTERRUPT_STATUS_4 0x99 /* Interrupt status.4 */ |
| 140 | #define HDMI_SOFTWARE_HDCP_CONTROL_1 0x9A /* Software HDCP control.1 */ |
| 141 | #define HDMI_FRAME_COUNTER 0x9C /* Frame counter */ |
| 142 | #define HDMI_FRAME_COUNTER_FOR_RI_CHECK 0x9D /* Frame counter for Ri check */ |
| 143 | #define HDMI_HDCP_CONTROL 0xAF /* HDCP control */ |
| 144 | #define HDMI_RI_FRAME_COUNT_REGISTER 0xB2 /* Ri frame count register */ |
| 145 | #define HDMI_DDC_BUS_CONTROL 0xB7 /* DDC bus control */ |
| 146 | #define HDMI_HDCP_STATUS 0xB8 /* HDCP status */ |
| 147 | #define HDMI_SHA0 0xB9 /* sha0 */ |
| 148 | #define HDMI_SHA1 0xBA /* sha1 */ |
| 149 | #define HDMI_SHA2 0xBB /* sha2 */ |
| 150 | #define HDMI_SHA3 0xBC /* sha3 */ |
| 151 | #define HDMI_SHA4 0xBD /* sha4 */ |
| 152 | #define HDMI_BCAPS_READ 0xBE /* BCAPS read / debug */ |
| 153 | #define HDMI_AKSV_BKSV_7_0_MONITOR 0xBF /* AKSV/BKSV[7:0] monitor */ |
| 154 | #define HDMI_AKSV_BKSV_15_8_MONITOR 0xC0 /* AKSV/BKSV[15:8] monitor */ |
| 155 | #define HDMI_AKSV_BKSV_23_16_MONITOR 0xC1 /* AKSV/BKSV[23:16] monitor */ |
| 156 | #define HDMI_AKSV_BKSV_31_24_MONITOR 0xC2 /* AKSV/BKSV[31:24] monitor */ |
| 157 | #define HDMI_AKSV_BKSV_39_32_MONITOR 0xC3 /* AKSV/BKSV[39:32] monitor */ |
| 158 | #define HDMI_EDID_SEGMENT_POINTER 0xC4 /* EDID segment pointer */ |
| 159 | #define HDMI_EDID_WORD_ADDRESS 0xC5 /* EDID word address */ |
| 160 | #define HDMI_EDID_DATA_FIFO_ADDRESS 0xC6 /* EDID data FIFO address */ |
| 161 | #define HDMI_NUM_OF_HDMI_DEVICES 0xC7 /* Number of HDMI devices */ |
| 162 | #define HDMI_HDCP_ERROR_CODE 0xC8 /* HDCP error code */ |
| 163 | #define HDMI_100MS_TIMER_SET 0xC9 /* 100ms timer setting */ |
| 164 | #define HDMI_5SEC_TIMER_SET 0xCA /* 5sec timer setting */ |
| 165 | #define HDMI_RI_READ_COUNT 0xCB /* Ri read count */ |
| 166 | #define HDMI_AN_SEED 0xCC /* An seed */ |
| 167 | #define HDMI_MAX_NUM_OF_RCIVRS_ALLOWED 0xCD /* Maximum number of receivers allowed */ |
| 168 | #define HDMI_HDCP_MEMORY_ACCESS_CONTROL_1 0xCE /* HDCP memory access control.1 */ |
| 169 | #define HDMI_HDCP_MEMORY_ACCESS_CONTROL_2 0xCF /* HDCP memory access control.2 */ |
| 170 | #define HDMI_HDCP_CONTROL_2 0xD0 /* HDCP Control 2 */ |
| 171 | #define HDMI_HDCP_KEY_MEMORY_CONTROL 0xD2 /* HDCP Key Memory Control */ |
| 172 | #define HDMI_COLOR_SPACE_CONV_CONFIG_1 0xD3 /* Color space conversion configuration.1 */ |
| 173 | #define HDMI_VIDEO_SETTING_3 0xD4 /* Video setting.3 */ |
| 174 | #define HDMI_RI_7_0 0xD5 /* Ri[7:0] */ |
| 175 | #define HDMI_RI_15_8 0xD6 /* Ri[15:8] */ |
| 176 | #define HDMI_PJ 0xD7 /* Pj */ |
| 177 | #define HDMI_SHA_RD 0xD8 /* sha_rd */ |
| 178 | #define HDMI_RI_7_0_SAVED 0xD9 /* Ri[7:0] saved */ |
| 179 | #define HDMI_RI_15_8_SAVED 0xDA /* Ri[15:8] saved */ |
| 180 | #define HDMI_PJ_SAVED 0xDB /* Pj saved */ |
| 181 | #define HDMI_NUM_OF_DEVICES 0xDC /* Number of devices */ |
| 182 | #define HDMI_HOT_PLUG_MSENS_STATUS 0xDF /* Hot plug/MSENS status */ |
| 183 | #define HDMI_BCAPS_WRITE 0xE0 /* bcaps */ |
| 184 | #define HDMI_BSTAT_7_0 0xE1 /* bstat[7:0] */ |
| 185 | #define HDMI_BSTAT_15_8 0xE2 /* bstat[15:8] */ |
| 186 | #define HDMI_BKSV_7_0 0xE3 /* bksv[7:0] */ |
| 187 | #define HDMI_BKSV_15_8 0xE4 /* bksv[15:8] */ |
| 188 | #define HDMI_BKSV_23_16 0xE5 /* bksv[23:16] */ |
| 189 | #define HDMI_BKSV_31_24 0xE6 /* bksv[31:24] */ |
| 190 | #define HDMI_BKSV_39_32 0xE7 /* bksv[39:32] */ |
| 191 | #define HDMI_AN_7_0 0xE8 /* An[7:0] */ |
| 192 | #define HDMI_AN_15_8 0xE9 /* An [15:8] */ |
| 193 | #define HDMI_AN_23_16 0xEA /* An [23:16] */ |
| 194 | #define HDMI_AN_31_24 0xEB /* An [31:24] */ |
| 195 | #define HDMI_AN_39_32 0xEC /* An [39:32] */ |
| 196 | #define HDMI_AN_47_40 0xED /* An [47:40] */ |
| 197 | #define HDMI_AN_55_48 0xEE /* An [55:48] */ |
| 198 | #define HDMI_AN_63_56 0xEF /* An [63:56] */ |
| 199 | #define HDMI_PRODUCT_ID 0xF0 /* Product ID */ |
| 200 | #define HDMI_REVISION_ID 0xF1 /* Revision ID */ |
| 201 | #define HDMI_TEST_MODE 0xFE /* Test mode */ |
| 202 | |
| 203 | enum hotplug_state { |
| 204 | HDMI_HOTPLUG_DISCONNECTED, |
| 205 | HDMI_HOTPLUG_CONNECTED, |
| 206 | HDMI_HOTPLUG_EDID_DONE, |
| 207 | }; |
| 208 | |
| 209 | struct sh_hdmi { |
| 210 | void __iomem *base; |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 211 | enum hotplug_state hp_state; /* hot-plug status */ |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 212 | u8 preprogrammed_vic; /* use a pre-programmed VIC or |
| 213 | the external mode */ |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 214 | u8 edid_block_addr; |
| 215 | u8 edid_segment_nr; |
| 216 | u8 edid_blocks; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 217 | struct clk *hdmi_clk; |
| 218 | struct device *dev; |
| 219 | struct fb_info *info; |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 220 | struct mutex mutex; /* Protect the info pointer */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 221 | struct delayed_work edid_work; |
| 222 | struct fb_var_screeninfo var; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 223 | struct fb_monspecs monspec; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 224 | }; |
| 225 | |
| 226 | static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg) |
| 227 | { |
| 228 | iowrite8(data, hdmi->base + reg); |
| 229 | } |
| 230 | |
| 231 | static u8 hdmi_read(struct sh_hdmi *hdmi, u8 reg) |
| 232 | { |
| 233 | return ioread8(hdmi->base + reg); |
| 234 | } |
| 235 | |
Kuninori Morimoto | f4363b7 | 2010-09-09 11:47:49 +0900 | [diff] [blame] | 236 | /* |
| 237 | * HDMI sound |
| 238 | */ |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 239 | static unsigned int sh_hdmi_snd_read(struct snd_soc_codec *codec, |
| 240 | unsigned int reg) |
| 241 | { |
| 242 | struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec); |
| 243 | |
| 244 | return hdmi_read(hdmi, reg); |
| 245 | } |
| 246 | |
| 247 | static int sh_hdmi_snd_write(struct snd_soc_codec *codec, |
| 248 | unsigned int reg, |
| 249 | unsigned int value) |
| 250 | { |
| 251 | struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec); |
| 252 | |
| 253 | hdmi_write(hdmi, value, reg); |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static struct snd_soc_dai_driver sh_hdmi_dai = { |
| 258 | .name = "sh_mobile_hdmi-hifi", |
| 259 | .playback = { |
| 260 | .stream_name = "Playback", |
Kuninori Morimoto | 17731f8 | 2010-09-09 11:48:10 +0900 | [diff] [blame] | 261 | .channels_min = 2, |
| 262 | .channels_max = 8, |
| 263 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | |
| 264 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | |
| 265 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | |
| 266 | SNDRV_PCM_RATE_192000, |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 267 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, |
| 268 | }, |
| 269 | }; |
| 270 | |
| 271 | static int sh_hdmi_snd_probe(struct snd_soc_codec *codec) |
| 272 | { |
| 273 | dev_info(codec->dev, "SH Mobile HDMI Audio Codec"); |
| 274 | |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | static struct snd_soc_codec_driver soc_codec_dev_sh_hdmi = { |
| 279 | .probe = sh_hdmi_snd_probe, |
| 280 | .read = sh_hdmi_snd_read, |
| 281 | .write = sh_hdmi_snd_write, |
| 282 | }; |
| 283 | |
Kuninori Morimoto | f4363b7 | 2010-09-09 11:47:49 +0900 | [diff] [blame] | 284 | /* |
| 285 | * HDMI video |
| 286 | */ |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 287 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 288 | /* External video parameter settings */ |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 289 | static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 290 | { |
| 291 | struct fb_var_screeninfo *var = &hdmi->var; |
| 292 | u16 htotal, hblank, hdelay, vtotal, vblank, vdelay, voffset; |
| 293 | u8 sync = 0; |
| 294 | |
| 295 | htotal = var->xres + var->right_margin + var->left_margin + var->hsync_len; |
| 296 | |
| 297 | hdelay = var->hsync_len + var->left_margin; |
| 298 | hblank = var->right_margin + hdelay; |
| 299 | |
| 300 | /* |
| 301 | * Vertical timing looks a bit different in Figure 18, |
| 302 | * but let's try the same first by setting offset = 0 |
| 303 | */ |
| 304 | vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len; |
| 305 | |
| 306 | vdelay = var->vsync_len + var->upper_margin; |
| 307 | vblank = var->lower_margin + vdelay; |
| 308 | voffset = min(var->upper_margin / 2, 6U); |
| 309 | |
| 310 | /* |
| 311 | * [3]: VSYNC polarity: Positive |
| 312 | * [2]: HSYNC polarity: Positive |
| 313 | * [1]: Interlace/Progressive: Progressive |
| 314 | * [0]: External video settings enable: used. |
| 315 | */ |
| 316 | if (var->sync & FB_SYNC_HOR_HIGH_ACT) |
| 317 | sync |= 4; |
| 318 | if (var->sync & FB_SYNC_VERT_HIGH_ACT) |
| 319 | sync |= 8; |
| 320 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 321 | dev_dbg(hdmi->dev, "H: %u, %u, %u, %u; V: %u, %u, %u, %u; sync 0x%x\n", |
| 322 | htotal, hblank, hdelay, var->hsync_len, |
| 323 | vtotal, vblank, vdelay, var->vsync_len, sync); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 324 | |
| 325 | hdmi_write(hdmi, sync | (voffset << 4), HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS); |
| 326 | |
| 327 | hdmi_write(hdmi, htotal, HDMI_EXTERNAL_H_TOTAL_7_0); |
| 328 | hdmi_write(hdmi, htotal >> 8, HDMI_EXTERNAL_H_TOTAL_11_8); |
| 329 | |
| 330 | hdmi_write(hdmi, hblank, HDMI_EXTERNAL_H_BLANK_7_0); |
| 331 | hdmi_write(hdmi, hblank >> 8, HDMI_EXTERNAL_H_BLANK_9_8); |
| 332 | |
| 333 | hdmi_write(hdmi, hdelay, HDMI_EXTERNAL_H_DELAY_7_0); |
| 334 | hdmi_write(hdmi, hdelay >> 8, HDMI_EXTERNAL_H_DELAY_9_8); |
| 335 | |
| 336 | hdmi_write(hdmi, var->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0); |
| 337 | hdmi_write(hdmi, var->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8); |
| 338 | |
| 339 | hdmi_write(hdmi, vtotal, HDMI_EXTERNAL_V_TOTAL_7_0); |
| 340 | hdmi_write(hdmi, vtotal >> 8, HDMI_EXTERNAL_V_TOTAL_9_8); |
| 341 | |
| 342 | hdmi_write(hdmi, vblank, HDMI_EXTERNAL_V_BLANK); |
| 343 | |
| 344 | hdmi_write(hdmi, vdelay, HDMI_EXTERNAL_V_DELAY); |
| 345 | |
| 346 | hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION); |
| 347 | |
Guennadi Liakhovetski | 8971269 | 2010-09-03 07:20:20 +0000 | [diff] [blame] | 348 | /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */ |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 349 | if (!hdmi->preprogrammed_vic) |
Guennadi Liakhovetski | 8971269 | 2010-09-03 07:20:20 +0000 | [diff] [blame] | 350 | hdmi_write(hdmi, sync | 1 | (voffset << 4), |
| 351 | HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | /** |
| 355 | * sh_hdmi_video_config() |
| 356 | */ |
| 357 | static void sh_hdmi_video_config(struct sh_hdmi *hdmi) |
| 358 | { |
| 359 | /* |
| 360 | * [7:4]: Audio sampling frequency: 48kHz |
| 361 | * [3:1]: Input video format: RGB and YCbCr 4:4:4 (Y on Green) |
| 362 | * [0]: Internal/External DE select: internal |
| 363 | */ |
| 364 | hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1); |
| 365 | |
| 366 | /* |
| 367 | * [7:6]: Video output format: RGB 4:4:4 |
| 368 | * [5:4]: Input video data width: 8 bit |
| 369 | * [3:1]: EAV/SAV location: channel 1 |
| 370 | * [0]: Video input color space: RGB |
| 371 | */ |
| 372 | hdmi_write(hdmi, 0x34, HDMI_VIDEO_SETTING_1); |
| 373 | |
| 374 | /* |
| 375 | * [7:6]: Together with bit [6] of HDMI_AUDIO_VIDEO_SETTING_2, which is |
| 376 | * left at 0 by default, this configures 24bpp and sets the Color Depth |
| 377 | * (CD) field in the General Control Packet |
| 378 | */ |
| 379 | hdmi_write(hdmi, 0x20, HDMI_DEEP_COLOR_MODES); |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * sh_hdmi_audio_config() |
| 384 | */ |
| 385 | static void sh_hdmi_audio_config(struct sh_hdmi *hdmi) |
| 386 | { |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 387 | u8 data; |
| 388 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; |
| 389 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 390 | /* |
| 391 | * [7:4] L/R data swap control |
| 392 | * [3:0] appropriate N[19:16] |
| 393 | */ |
| 394 | hdmi_write(hdmi, 0x00, HDMI_L_R_DATA_SWAP_CTRL_RPKT); |
| 395 | /* appropriate N[15:8] */ |
| 396 | hdmi_write(hdmi, 0x18, HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8); |
| 397 | /* appropriate N[7:0] */ |
| 398 | hdmi_write(hdmi, 0x00, HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0); |
| 399 | |
| 400 | /* [7:4] 48 kHz SPDIF not used */ |
| 401 | hdmi_write(hdmi, 0x20, HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS); |
| 402 | |
| 403 | /* |
| 404 | * [6:5] set required down sampling rate if required |
| 405 | * [4:3] set required audio source |
| 406 | */ |
Kuninori Morimoto | dec6aa4 | 2010-09-09 11:48:01 +0900 | [diff] [blame] | 407 | switch (pdata->flags & HDMI_SND_SRC_MASK) { |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 408 | default: |
Kuninori Morimoto | f4363b7 | 2010-09-09 11:47:49 +0900 | [diff] [blame] | 409 | /* fall through */ |
Kuninori Morimoto | dec6aa4 | 2010-09-09 11:48:01 +0900 | [diff] [blame] | 410 | case HDMI_SND_SRC_I2S: |
| 411 | data = 0x0 << 3; |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 412 | break; |
Kuninori Morimoto | dec6aa4 | 2010-09-09 11:48:01 +0900 | [diff] [blame] | 413 | case HDMI_SND_SRC_SPDIF: |
| 414 | data = 0x1 << 3; |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 415 | break; |
Kuninori Morimoto | dec6aa4 | 2010-09-09 11:48:01 +0900 | [diff] [blame] | 416 | case HDMI_SND_SRC_DSD: |
| 417 | data = 0x2 << 3; |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 418 | break; |
Kuninori Morimoto | dec6aa4 | 2010-09-09 11:48:01 +0900 | [diff] [blame] | 419 | case HDMI_SND_SRC_HBR: |
| 420 | data = 0x3 << 3; |
Kuninori Morimoto | 6d86577 | 2010-08-31 14:46:41 +0900 | [diff] [blame] | 421 | break; |
| 422 | } |
| 423 | hdmi_write(hdmi, data, HDMI_AUDIO_SETTING_1); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 424 | |
| 425 | /* [3:0] set sending channel number for channel status */ |
| 426 | hdmi_write(hdmi, 0x40, HDMI_AUDIO_SETTING_2); |
| 427 | |
| 428 | /* |
| 429 | * [5:2] set valid I2S source input pin |
| 430 | * [1:0] set input I2S source mode |
| 431 | */ |
| 432 | hdmi_write(hdmi, 0x04, HDMI_I2S_AUDIO_SET); |
| 433 | |
| 434 | /* [7:4] set valid DSD source input pin */ |
| 435 | hdmi_write(hdmi, 0x00, HDMI_DSD_AUDIO_SET); |
| 436 | |
| 437 | /* [7:0] set appropriate I2S input pin swap settings if required */ |
| 438 | hdmi_write(hdmi, 0x00, HDMI_I2S_INPUT_PIN_SWAP); |
| 439 | |
| 440 | /* |
| 441 | * [7] set validity bit for channel status |
| 442 | * [3:0] set original sample frequency for channel status |
| 443 | */ |
| 444 | hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_1); |
| 445 | |
| 446 | /* |
| 447 | * [7] set value for channel status |
| 448 | * [6] set value for channel status |
| 449 | * [5] set copyright bit for channel status |
| 450 | * [4:2] set additional information for channel status |
| 451 | * [1:0] set clock accuracy for channel status |
| 452 | */ |
| 453 | hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_2); |
| 454 | |
| 455 | /* [7:0] set category code for channel status */ |
| 456 | hdmi_write(hdmi, 0x00, HDMI_CATEGORY_CODE); |
| 457 | |
| 458 | /* |
| 459 | * [7:4] set source number for channel status |
| 460 | * [3:0] set word length for channel status |
| 461 | */ |
| 462 | hdmi_write(hdmi, 0x00, HDMI_SOURCE_NUM_AUDIO_WORD_LEN); |
| 463 | |
| 464 | /* [7:4] set sample frequency for channel status */ |
| 465 | hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1); |
| 466 | } |
| 467 | |
| 468 | /** |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 469 | * sh_hdmi_phy_config() - configure the HDMI PHY for the used video mode |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 470 | */ |
| 471 | static void sh_hdmi_phy_config(struct sh_hdmi *hdmi) |
| 472 | { |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 473 | if (hdmi->var.pixclock < 10000) { |
| 474 | /* for 1080p8bit 148MHz */ |
| 475 | hdmi_write(hdmi, 0x1d, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); |
| 476 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); |
| 477 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); |
| 478 | hdmi_write(hdmi, 0x4c, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); |
| 479 | hdmi_write(hdmi, 0x1e, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); |
| 480 | hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); |
| 481 | hdmi_write(hdmi, 0x0e, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); |
| 482 | hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); |
| 483 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); |
| 484 | } else if (hdmi->var.pixclock < 30000) { |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 485 | /* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */ |
| 486 | /* |
| 487 | * [1:0] Speed_A |
| 488 | * [3:2] Speed_B |
| 489 | * [4] PLLA_Bypass |
| 490 | * [6] DRV_TEST_EN |
| 491 | * [7] DRV_TEST_IN |
| 492 | */ |
Guennadi Liakhovetski | 9289c47 | 2010-09-03 07:20:35 +0000 | [diff] [blame] | 493 | hdmi_write(hdmi, 0x0f, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 494 | /* PLLB_CONFIG[17], PLLA_CONFIG[17] - not in PHY datasheet */ |
| 495 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); |
| 496 | /* |
| 497 | * [2:0] BGR_I_OFFSET |
| 498 | * [6:4] BGR_V_OFFSET |
| 499 | */ |
| 500 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); |
| 501 | /* PLLA_CONFIG[7:0]: VCO gain, VCO offset, LPF resistance[0] */ |
| 502 | hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); |
| 503 | /* |
| 504 | * PLLA_CONFIG[15:8]: regulator voltage[0], CP current, |
| 505 | * LPF capacitance, LPF resistance[1] |
| 506 | */ |
| 507 | hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); |
| 508 | /* PLLB_CONFIG[7:0]: LPF resistance[0], VCO offset, VCO gain */ |
| 509 | hdmi_write(hdmi, 0x4A, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); |
| 510 | /* |
| 511 | * PLLB_CONFIG[15:8]: regulator voltage[0], CP current, |
| 512 | * LPF capacitance, LPF resistance[1] |
| 513 | */ |
Guennadi Liakhovetski | 9289c47 | 2010-09-03 07:20:35 +0000 | [diff] [blame] | 514 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 515 | /* DRV_CONFIG, PE_CONFIG */ |
| 516 | hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); |
| 517 | /* |
| 518 | * [2:0] AMON_SEL (4 == LPF voltage) |
| 519 | * [4] PLLA_CONFIG[16] |
| 520 | * [5] PLLB_CONFIG[16] |
| 521 | */ |
| 522 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); |
| 523 | } else { |
| 524 | /* for 480p8bit 27MHz */ |
| 525 | hdmi_write(hdmi, 0x19, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); |
| 526 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); |
| 527 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); |
| 528 | hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); |
| 529 | hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); |
| 530 | hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); |
| 531 | hdmi_write(hdmi, 0x0F, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); |
| 532 | hdmi_write(hdmi, 0x20, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); |
| 533 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); |
| 534 | } |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | /** |
| 538 | * sh_hdmi_avi_infoframe_setup() - Auxiliary Video Information InfoFrame CONTROL PACKET |
| 539 | */ |
| 540 | static void sh_hdmi_avi_infoframe_setup(struct sh_hdmi *hdmi) |
| 541 | { |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 542 | u8 vic; |
| 543 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 544 | /* AVI InfoFrame */ |
| 545 | hdmi_write(hdmi, 0x06, HDMI_CTRL_PKT_BUF_INDEX); |
| 546 | |
| 547 | /* Packet Type = 0x82 */ |
| 548 | hdmi_write(hdmi, 0x82, HDMI_CTRL_PKT_BUF_ACCESS_HB0); |
| 549 | |
| 550 | /* Version = 0x02 */ |
| 551 | hdmi_write(hdmi, 0x02, HDMI_CTRL_PKT_BUF_ACCESS_HB1); |
| 552 | |
| 553 | /* Length = 13 (0x0D) */ |
| 554 | hdmi_write(hdmi, 0x0D, HDMI_CTRL_PKT_BUF_ACCESS_HB2); |
| 555 | |
| 556 | /* N. A. Checksum */ |
| 557 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0); |
| 558 | |
| 559 | /* |
| 560 | * Y = RGB |
| 561 | * A0 = No Data |
| 562 | * B = Bar Data not valid |
| 563 | * S = No Data |
| 564 | */ |
| 565 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1); |
| 566 | |
| 567 | /* |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 568 | * [7:6] C = Colorimetry: no data |
| 569 | * [5:4] M = 2: 16:9, 1: 4:3 Picture Aspect Ratio |
| 570 | * [3:0] R = 8: Active Frame Aspect Ratio: same as picture aspect ratio |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 571 | */ |
| 572 | hdmi_write(hdmi, 0x28, HDMI_CTRL_PKT_BUF_ACCESS_PB2); |
| 573 | |
| 574 | /* |
| 575 | * ITC = No Data |
| 576 | * EC = xvYCC601 |
| 577 | * Q = Default (depends on video format) |
| 578 | * SC = No Known non_uniform Scaling |
| 579 | */ |
| 580 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3); |
| 581 | |
| 582 | /* |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 583 | * VIC should be ignored if external config is used, so, we could just use 0, |
| 584 | * but play safe and use a valid value in any case just in case |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 585 | */ |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 586 | if (hdmi->preprogrammed_vic) |
| 587 | vic = hdmi->preprogrammed_vic; |
Guennadi Liakhovetski | 6e45746 | 2010-09-03 07:20:16 +0000 | [diff] [blame] | 588 | else |
| 589 | vic = 4; |
| 590 | hdmi_write(hdmi, vic, HDMI_CTRL_PKT_BUF_ACCESS_PB4); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 591 | |
| 592 | /* PR = No Repetition */ |
| 593 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5); |
| 594 | |
| 595 | /* Line Number of End of Top Bar (lower 8 bits) */ |
| 596 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6); |
| 597 | |
| 598 | /* Line Number of End of Top Bar (upper 8 bits) */ |
| 599 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7); |
| 600 | |
| 601 | /* Line Number of Start of Bottom Bar (lower 8 bits) */ |
| 602 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8); |
| 603 | |
| 604 | /* Line Number of Start of Bottom Bar (upper 8 bits) */ |
| 605 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9); |
| 606 | |
| 607 | /* Pixel Number of End of Left Bar (lower 8 bits) */ |
| 608 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10); |
| 609 | |
| 610 | /* Pixel Number of End of Left Bar (upper 8 bits) */ |
| 611 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB11); |
| 612 | |
| 613 | /* Pixel Number of Start of Right Bar (lower 8 bits) */ |
| 614 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB12); |
| 615 | |
| 616 | /* Pixel Number of Start of Right Bar (upper 8 bits) */ |
| 617 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB13); |
| 618 | } |
| 619 | |
| 620 | /** |
| 621 | * sh_hdmi_audio_infoframe_setup() - Audio InfoFrame of CONTROL PACKET |
| 622 | */ |
| 623 | static void sh_hdmi_audio_infoframe_setup(struct sh_hdmi *hdmi) |
| 624 | { |
| 625 | /* Audio InfoFrame */ |
| 626 | hdmi_write(hdmi, 0x08, HDMI_CTRL_PKT_BUF_INDEX); |
| 627 | |
| 628 | /* Packet Type = 0x84 */ |
| 629 | hdmi_write(hdmi, 0x84, HDMI_CTRL_PKT_BUF_ACCESS_HB0); |
| 630 | |
| 631 | /* Version Number = 0x01 */ |
| 632 | hdmi_write(hdmi, 0x01, HDMI_CTRL_PKT_BUF_ACCESS_HB1); |
| 633 | |
| 634 | /* 0 Length = 10 (0x0A) */ |
| 635 | hdmi_write(hdmi, 0x0A, HDMI_CTRL_PKT_BUF_ACCESS_HB2); |
| 636 | |
| 637 | /* n. a. Checksum */ |
| 638 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0); |
| 639 | |
| 640 | /* Audio Channel Count = Refer to Stream Header */ |
| 641 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1); |
| 642 | |
| 643 | /* Refer to Stream Header */ |
| 644 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB2); |
| 645 | |
| 646 | /* Format depends on coding type (i.e. CT0...CT3) */ |
| 647 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3); |
| 648 | |
| 649 | /* Speaker Channel Allocation = Front Right + Front Left */ |
| 650 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB4); |
| 651 | |
| 652 | /* Level Shift Value = 0 dB, Down - mix is permitted or no information */ |
| 653 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5); |
| 654 | |
| 655 | /* Reserved (0) */ |
| 656 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6); |
| 657 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7); |
| 658 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8); |
| 659 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9); |
| 660 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10); |
| 661 | } |
| 662 | |
| 663 | /** |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 664 | * sh_hdmi_configure() - Initialise HDMI for output |
| 665 | */ |
| 666 | static void sh_hdmi_configure(struct sh_hdmi *hdmi) |
| 667 | { |
| 668 | /* Configure video format */ |
| 669 | sh_hdmi_video_config(hdmi); |
| 670 | |
| 671 | /* Configure audio format */ |
| 672 | sh_hdmi_audio_config(hdmi); |
| 673 | |
| 674 | /* Configure PHY */ |
| 675 | sh_hdmi_phy_config(hdmi); |
| 676 | |
| 677 | /* Auxiliary Video Information (AVI) InfoFrame */ |
| 678 | sh_hdmi_avi_infoframe_setup(hdmi); |
| 679 | |
| 680 | /* Audio InfoFrame */ |
| 681 | sh_hdmi_audio_infoframe_setup(hdmi); |
| 682 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 683 | /* |
| 684 | * Control packet auto send with VSYNC control: auto send |
| 685 | * General control, Gamut metadata, ISRC, and ACP packets |
| 686 | */ |
| 687 | hdmi_write(hdmi, 0x8E, HDMI_CTRL_PKT_AUTO_SEND); |
| 688 | |
| 689 | /* FIXME */ |
| 690 | msleep(10); |
| 691 | |
| 692 | /* PS mode b->d, reset PLLA and PLLB */ |
| 693 | hdmi_write(hdmi, 0x4C, HDMI_SYSTEM_CTRL); |
| 694 | |
| 695 | udelay(10); |
| 696 | |
| 697 | hdmi_write(hdmi, 0x40, HDMI_SYSTEM_CTRL); |
| 698 | } |
| 699 | |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 700 | static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi, |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 701 | const struct fb_videomode *mode, |
| 702 | unsigned long *hdmi_rate, unsigned long *parent_rate) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 703 | { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 704 | unsigned long target = PICOS2KHZ(mode->pixclock) * 1000, rate_error; |
| 705 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; |
| 706 | |
| 707 | *hdmi_rate = clk_round_rate(hdmi->hdmi_clk, target); |
| 708 | if ((long)*hdmi_rate < 0) |
| 709 | *hdmi_rate = clk_get_rate(hdmi->hdmi_clk); |
| 710 | |
| 711 | rate_error = (long)*hdmi_rate > 0 ? abs(*hdmi_rate - target) : ULONG_MAX; |
| 712 | if (rate_error && pdata->clk_optimize_parent) |
| 713 | rate_error = pdata->clk_optimize_parent(target, hdmi_rate, parent_rate); |
| 714 | else if (clk_get_parent(hdmi->hdmi_clk)) |
| 715 | *parent_rate = clk_get_rate(clk_get_parent(hdmi->hdmi_clk)); |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 716 | |
| 717 | dev_dbg(hdmi->dev, "%u-%u-%u-%u x %u-%u-%u-%u\n", |
| 718 | mode->left_margin, mode->xres, |
| 719 | mode->right_margin, mode->hsync_len, |
| 720 | mode->upper_margin, mode->yres, |
| 721 | mode->lower_margin, mode->vsync_len); |
| 722 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 723 | dev_dbg(hdmi->dev, "\t@%lu(+/-%lu)Hz, e=%lu / 1000, r=%uHz, p=%luHz\n", target, |
| 724 | rate_error, rate_error ? 10000 / (10 * target / rate_error) : 0, |
| 725 | mode->refresh, *parent_rate); |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 726 | |
| 727 | return rate_error; |
| 728 | } |
| 729 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 730 | static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate, |
| 731 | unsigned long *parent_rate) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 732 | { |
Guennadi Liakhovetski | 6ee4845 | 2010-09-03 07:19:53 +0000 | [diff] [blame] | 733 | struct fb_var_screeninfo tmpvar; |
Guennadi Liakhovetski | 6ee4845 | 2010-09-03 07:19:53 +0000 | [diff] [blame] | 734 | struct fb_var_screeninfo *var = &tmpvar; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 735 | const struct fb_videomode *mode, *found = NULL; |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 736 | struct fb_info *info = hdmi->info; |
| 737 | struct fb_modelist *modelist = NULL; |
| 738 | unsigned int f_width = 0, f_height = 0, f_refresh = 0; |
| 739 | unsigned long found_rate_error = ULONG_MAX; /* silly compiler... */ |
| 740 | bool exact_match = false; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 741 | u8 edid[128]; |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 742 | char *forced; |
| 743 | int i; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 744 | |
| 745 | /* Read EDID */ |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 746 | dev_dbg(hdmi->dev, "Read back EDID code:"); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 747 | for (i = 0; i < 128; i++) { |
| 748 | edid[i] = hdmi_read(hdmi, HDMI_EDID_KSV_FIFO_ACCESS_WINDOW); |
| 749 | #ifdef DEBUG |
| 750 | if ((i % 16) == 0) { |
| 751 | printk(KERN_CONT "\n"); |
| 752 | printk(KERN_DEBUG "%02X | %02X", i, edid[i]); |
| 753 | } else { |
| 754 | printk(KERN_CONT " %02X", edid[i]); |
| 755 | } |
| 756 | #endif |
| 757 | } |
| 758 | #ifdef DEBUG |
| 759 | printk(KERN_CONT "\n"); |
| 760 | #endif |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 761 | |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 762 | if (!hdmi->edid_blocks) { |
| 763 | fb_edid_to_monspecs(edid, &hdmi->monspec); |
| 764 | hdmi->edid_blocks = edid[126] + 1; |
| 765 | |
| 766 | dev_dbg(hdmi->dev, "%d main modes, %d extension blocks\n", |
| 767 | hdmi->monspec.modedb_len, hdmi->edid_blocks - 1); |
| 768 | } else { |
| 769 | dev_dbg(hdmi->dev, "Extension %u detected, DTD start %u\n", |
| 770 | edid[0], edid[2]); |
| 771 | fb_edid_add_monspecs(edid, &hdmi->monspec); |
| 772 | } |
| 773 | |
| 774 | if (hdmi->edid_blocks > hdmi->edid_segment_nr * 2 + |
| 775 | (hdmi->edid_block_addr >> 7) + 1) { |
| 776 | /* More blocks to read */ |
| 777 | if (hdmi->edid_block_addr) { |
| 778 | hdmi->edid_block_addr = 0; |
| 779 | hdmi->edid_segment_nr++; |
| 780 | } else { |
| 781 | hdmi->edid_block_addr = 0x80; |
| 782 | } |
| 783 | /* Set EDID word address */ |
| 784 | hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS); |
| 785 | /* Enable EDID interrupt */ |
| 786 | hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1); |
| 787 | /* Set EDID segment pointer - starts reading EDID */ |
| 788 | hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER); |
| 789 | return -EAGAIN; |
| 790 | } |
| 791 | |
| 792 | /* All E-EDID blocks ready */ |
| 793 | dev_dbg(hdmi->dev, "%d main and extended modes\n", hdmi->monspec.modedb_len); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 794 | |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 795 | fb_get_options("sh_mobile_lcdc", &forced); |
| 796 | if (forced && *forced) { |
| 797 | /* Only primitive parsing so far */ |
| 798 | i = sscanf(forced, "%ux%u@%u", |
| 799 | &f_width, &f_height, &f_refresh); |
| 800 | if (i < 2) { |
| 801 | f_width = 0; |
| 802 | f_height = 0; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 803 | } |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 804 | dev_dbg(hdmi->dev, "Forced mode %ux%u@%uHz\n", |
| 805 | f_width, f_height, f_refresh); |
| 806 | } |
| 807 | |
| 808 | /* Walk monitor modes to find the best or the exact match */ |
| 809 | for (i = 0, mode = hdmi->monspec.modedb; |
| 810 | f_width && f_height && i < hdmi->monspec.modedb_len && !exact_match; |
| 811 | i++, mode++) { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 812 | unsigned long rate_error; |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 813 | |
| 814 | /* No interest in unmatching modes */ |
| 815 | if (f_width != mode->xres || f_height != mode->yres) |
| 816 | continue; |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 817 | |
| 818 | rate_error = sh_hdmi_rate_error(hdmi, mode, hdmi_rate, parent_rate); |
| 819 | |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 820 | if (f_refresh == mode->refresh || (!f_refresh && !rate_error)) |
| 821 | /* |
| 822 | * Exact match if either the refresh rate matches or it |
| 823 | * hasn't been specified and we've found a mode, for |
| 824 | * which we can configure the clock precisely |
| 825 | */ |
| 826 | exact_match = true; |
| 827 | else if (found && found_rate_error <= rate_error) |
| 828 | /* |
| 829 | * We otherwise search for the closest matching clock |
| 830 | * rate - either if no refresh rate has been specified |
| 831 | * or we cannot find an exactly matching one |
| 832 | */ |
| 833 | continue; |
| 834 | |
| 835 | /* Check if supported: sufficient fb memory, supported clock-rate */ |
| 836 | fb_videomode_to_var(var, mode); |
| 837 | |
| 838 | if (info && info->fbops->fb_check_var && |
| 839 | info->fbops->fb_check_var(var, info)) { |
| 840 | exact_match = false; |
| 841 | continue; |
| 842 | } |
| 843 | |
| 844 | found = mode; |
| 845 | found_rate_error = rate_error; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | /* |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 849 | * TODO 1: if no ->info is present, postpone running the config until |
| 850 | * after ->info first gets registered. |
| 851 | * TODO 2: consider registering the HDMI platform device from the LCDC |
| 852 | * driver, and passing ->info with HDMI platform data. |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 853 | */ |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 854 | if (info && !found) { |
| 855 | modelist = hdmi->info->modelist.next && |
| 856 | !list_empty(&hdmi->info->modelist) ? |
| 857 | list_entry(hdmi->info->modelist.next, |
| 858 | struct fb_modelist, list) : |
| 859 | NULL; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 860 | |
Guennadi Liakhovetski | f1198d1 | 2010-10-15 07:54:04 +0000 | [diff] [blame] | 861 | if (modelist) { |
| 862 | found = &modelist->mode; |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 863 | found_rate_error = sh_hdmi_rate_error(hdmi, found, hdmi_rate, parent_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 864 | } |
| 865 | } |
| 866 | |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 867 | /* No cookie today */ |
| 868 | if (!found) |
| 869 | return -ENXIO; |
| 870 | |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 871 | if (found->xres == 640 && found->yres == 480 && found->refresh == 60) |
| 872 | hdmi->preprogrammed_vic = 1; |
| 873 | else if (found->xres == 720 && found->yres == 480 && found->refresh == 60) |
| 874 | hdmi->preprogrammed_vic = 2; |
| 875 | else if (found->xres == 720 && found->yres == 576 && found->refresh == 50) |
| 876 | hdmi->preprogrammed_vic = 17; |
| 877 | else if (found->xres == 1280 && found->yres == 720 && found->refresh == 60) |
| 878 | hdmi->preprogrammed_vic = 4; |
| 879 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 24) |
| 880 | hdmi->preprogrammed_vic = 32; |
| 881 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 50) |
| 882 | hdmi->preprogrammed_vic = 31; |
| 883 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 60) |
| 884 | hdmi->preprogrammed_vic = 16; |
Guennadi Liakhovetski | 8971269 | 2010-09-03 07:20:20 +0000 | [diff] [blame] | 885 | else |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 886 | hdmi->preprogrammed_vic = 0; |
Guennadi Liakhovetski | 8971269 | 2010-09-03 07:20:20 +0000 | [diff] [blame] | 887 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 888 | dev_dbg(hdmi->dev, "Using %s %s mode %ux%u@%uHz (%luHz), clock error %luHz\n", |
Guennadi Liakhovetski | 0ea2af1 | 2010-11-04 11:06:17 +0000 | [diff] [blame] | 889 | modelist ? "default" : "EDID", hdmi->preprogrammed_vic ? "VIC" : "external", |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 890 | found->xres, found->yres, found->refresh, |
| 891 | PICOS2KHZ(found->pixclock) * 1000, found_rate_error); |
| 892 | |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 893 | fb_videomode_to_var(&hdmi->var, found); |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 894 | sh_hdmi_external_video_param(hdmi); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 895 | |
| 896 | return 0; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id) |
| 900 | { |
| 901 | struct sh_hdmi *hdmi = dev_id; |
| 902 | u8 status1, status2, mask1, mask2; |
| 903 | |
| 904 | /* mode_b and PLLA and PLLB reset */ |
| 905 | hdmi_write(hdmi, 0x2C, HDMI_SYSTEM_CTRL); |
| 906 | |
| 907 | /* How long shall reset be held? */ |
| 908 | udelay(10); |
| 909 | |
| 910 | /* mode_b and PLLA and PLLB reset release */ |
| 911 | hdmi_write(hdmi, 0x20, HDMI_SYSTEM_CTRL); |
| 912 | |
| 913 | status1 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_1); |
| 914 | status2 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_2); |
| 915 | |
| 916 | mask1 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_1); |
| 917 | mask2 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_2); |
| 918 | |
| 919 | /* Correct would be to ack only set bits, but the datasheet requires 0xff */ |
| 920 | hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_1); |
| 921 | hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_2); |
| 922 | |
| 923 | if (printk_ratelimit()) |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 924 | dev_dbg(hdmi->dev, "IRQ #%d: Status #1: 0x%x & 0x%x, #2: 0x%x & 0x%x\n", |
| 925 | irq, status1, mask1, status2, mask2); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 926 | |
| 927 | if (!((status1 & mask1) | (status2 & mask2))) { |
| 928 | return IRQ_NONE; |
| 929 | } else if (status1 & 0xc0) { |
| 930 | u8 msens; |
| 931 | |
| 932 | /* Datasheet specifies 10ms... */ |
| 933 | udelay(500); |
| 934 | |
| 935 | msens = hdmi_read(hdmi, HDMI_HOT_PLUG_MSENS_STATUS); |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 936 | dev_dbg(hdmi->dev, "MSENS 0x%x\n", msens); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 937 | /* Check, if hot plug & MSENS pin status are both high */ |
| 938 | if ((msens & 0xC0) == 0xC0) { |
| 939 | /* Display plug in */ |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 940 | hdmi->edid_segment_nr = 0; |
| 941 | hdmi->edid_block_addr = 0; |
| 942 | hdmi->edid_blocks = 0; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 943 | hdmi->hp_state = HDMI_HOTPLUG_CONNECTED; |
| 944 | |
| 945 | /* Set EDID word address */ |
| 946 | hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 947 | /* Enable EDID interrupt */ |
| 948 | hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1); |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 949 | /* Set EDID segment pointer - starts reading EDID */ |
| 950 | hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 951 | } else if (!(status1 & 0x80)) { |
| 952 | /* Display unplug, beware multiple interrupts */ |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 953 | if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED) { |
| 954 | hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 955 | schedule_delayed_work(&hdmi->edid_work, 0); |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 956 | } |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 957 | /* display_off will switch back to mode_a */ |
| 958 | } |
| 959 | } else if (status1 & 2) { |
| 960 | /* EDID error interrupt: retry */ |
| 961 | /* Set EDID word address */ |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 962 | hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 963 | /* Set EDID segment pointer */ |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 964 | hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 965 | } else if (status1 & 4) { |
| 966 | /* Disable EDID interrupt */ |
| 967 | hdmi_write(hdmi, 0xC0, HDMI_INTERRUPT_MASK_1); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 968 | schedule_delayed_work(&hdmi->edid_work, msecs_to_jiffies(10)); |
| 969 | } |
| 970 | |
| 971 | return IRQ_HANDLED; |
| 972 | } |
| 973 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 974 | /* locking: called with info->lock held, or before register_framebuffer() */ |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 975 | static void sh_hdmi_display_on(void *arg, struct fb_info *info) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 976 | { |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 977 | /* |
| 978 | * info is guaranteed to be valid, when we are called, because our |
| 979 | * FB_EVENT_FB_UNBIND notify is also called with info->lock held |
| 980 | */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 981 | struct sh_hdmi *hdmi = arg; |
| 982 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; |
Guennadi Liakhovetski | 1c120de | 2010-09-03 07:20:27 +0000 | [diff] [blame] | 983 | struct sh_mobile_lcdc_chan *ch = info->par; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 984 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 985 | dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, |
| 986 | pdata->lcd_dev, info->state); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 987 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 988 | /* No need to lock */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 989 | hdmi->info = info; |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 990 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 991 | /* |
| 992 | * hp_state can be set to |
| 993 | * HDMI_HOTPLUG_DISCONNECTED: on monitor unplug |
| 994 | * HDMI_HOTPLUG_CONNECTED: on monitor plug-in |
| 995 | * HDMI_HOTPLUG_EDID_DONE: on EDID read completion |
| 996 | */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 997 | switch (hdmi->hp_state) { |
| 998 | case HDMI_HOTPLUG_EDID_DONE: |
| 999 | /* PS mode d->e. All functions are active */ |
| 1000 | hdmi_write(hdmi, 0x80, HDMI_SYSTEM_CTRL); |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1001 | dev_dbg(hdmi->dev, "HDMI running\n"); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1002 | break; |
| 1003 | case HDMI_HOTPLUG_DISCONNECTED: |
| 1004 | info->state = FBINFO_STATE_SUSPENDED; |
| 1005 | default: |
Guennadi Liakhovetski | 1c120de | 2010-09-03 07:20:27 +0000 | [diff] [blame] | 1006 | hdmi->var = ch->display_var; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1007 | } |
| 1008 | } |
| 1009 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1010 | /* locking: called with info->lock held */ |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1011 | static void sh_hdmi_display_off(void *arg) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1012 | { |
| 1013 | struct sh_hdmi *hdmi = arg; |
| 1014 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; |
| 1015 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1016 | dev_dbg(hdmi->dev, "%s(%p)\n", __func__, pdata->lcd_dev); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1017 | /* PS mode e->a */ |
| 1018 | hdmi_write(hdmi, 0x10, HDMI_SYSTEM_CTRL); |
| 1019 | } |
| 1020 | |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1021 | static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi) |
| 1022 | { |
| 1023 | struct fb_info *info = hdmi->info; |
| 1024 | struct sh_mobile_lcdc_chan *ch = info->par; |
| 1025 | struct fb_var_screeninfo *new_var = &hdmi->var, *old_var = &ch->display_var; |
| 1026 | struct fb_videomode mode1, mode2; |
| 1027 | |
| 1028 | fb_var_to_videomode(&mode1, old_var); |
| 1029 | fb_var_to_videomode(&mode2, new_var); |
| 1030 | |
| 1031 | dev_dbg(info->dev, "Old %ux%u, new %ux%u\n", |
| 1032 | mode1.xres, mode1.yres, mode2.xres, mode2.yres); |
| 1033 | |
| 1034 | if (fb_mode_is_equal(&mode1, &mode2)) |
| 1035 | return false; |
| 1036 | |
| 1037 | dev_dbg(info->dev, "Switching %u -> %u lines\n", |
| 1038 | mode1.yres, mode2.yres); |
| 1039 | *old_var = *new_var; |
| 1040 | |
| 1041 | return true; |
| 1042 | } |
| 1043 | |
| 1044 | /** |
| 1045 | * sh_hdmi_clk_configure() - set HDMI clock frequency and enable the clock |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1046 | * @hdmi: driver context |
| 1047 | * @hdmi_rate: HDMI clock frequency in Hz |
| 1048 | * @parent_rate: if != 0 - set parent clock rate for optimal precision |
| 1049 | * return: configured positive rate if successful |
| 1050 | * 0 if couldn't set the rate, but managed to enable the |
| 1051 | * clock, negative error, if couldn't enable the clock |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1052 | */ |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1053 | static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long hdmi_rate, |
| 1054 | unsigned long parent_rate) |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1055 | { |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1056 | int ret; |
| 1057 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1058 | if (parent_rate && clk_get_parent(hdmi->hdmi_clk)) { |
| 1059 | ret = clk_set_rate(clk_get_parent(hdmi->hdmi_clk), parent_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1060 | if (ret < 0) { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1061 | dev_warn(hdmi->dev, "Cannot set parent rate %ld: %d\n", parent_rate, ret); |
| 1062 | hdmi_rate = clk_round_rate(hdmi->hdmi_clk, hdmi_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1063 | } else { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1064 | dev_dbg(hdmi->dev, "HDMI set parent frequency %lu\n", parent_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1065 | } |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1066 | } |
| 1067 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1068 | ret = clk_set_rate(hdmi->hdmi_clk, hdmi_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1069 | if (ret < 0) { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1070 | dev_warn(hdmi->dev, "Cannot set rate %ld: %d\n", hdmi_rate, ret); |
| 1071 | hdmi_rate = 0; |
| 1072 | } else { |
| 1073 | dev_dbg(hdmi->dev, "HDMI set frequency %lu\n", hdmi_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1074 | } |
| 1075 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1076 | return hdmi_rate; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1077 | } |
| 1078 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1079 | /* Hotplug interrupt occurred, read EDID */ |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1080 | static void sh_hdmi_edid_work_fn(struct work_struct *work) |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1081 | { |
| 1082 | struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work); |
| 1083 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; |
Guennadi Liakhovetski | 1c120de | 2010-09-03 07:20:27 +0000 | [diff] [blame] | 1084 | struct sh_mobile_lcdc_chan *ch; |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1085 | int ret; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1086 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1087 | dev_dbg(hdmi->dev, "%s(%p): begin, hotplug status %d\n", __func__, |
| 1088 | pdata->lcd_dev, hdmi->hp_state); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1089 | |
| 1090 | if (!pdata->lcd_dev) |
| 1091 | return; |
| 1092 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1093 | mutex_lock(&hdmi->mutex); |
| 1094 | |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 1095 | if (hdmi->hp_state == HDMI_HOTPLUG_CONNECTED) { |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1096 | unsigned long parent_rate = 0, hdmi_rate; |
| 1097 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1098 | /* A device has been plugged in */ |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1099 | pm_runtime_get_sync(hdmi->dev); |
| 1100 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1101 | ret = sh_hdmi_read_edid(hdmi, &hdmi_rate, &parent_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1102 | if (ret < 0) |
| 1103 | goto out; |
| 1104 | |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 1105 | hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE; |
| 1106 | |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1107 | /* Reconfigure the clock */ |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1108 | ret = sh_hdmi_clk_configure(hdmi, hdmi_rate, parent_rate); |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1109 | if (ret < 0) |
| 1110 | goto out; |
| 1111 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1112 | msleep(10); |
| 1113 | sh_hdmi_configure(hdmi); |
| 1114 | /* Switched to another (d) power-save mode */ |
| 1115 | msleep(10); |
| 1116 | |
| 1117 | if (!hdmi->info) |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1118 | goto out; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1119 | |
Guennadi Liakhovetski | 1c120de | 2010-09-03 07:20:27 +0000 | [diff] [blame] | 1120 | ch = hdmi->info->par; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1121 | |
| 1122 | acquire_console_sem(); |
| 1123 | |
| 1124 | /* HDMI plug in */ |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1125 | if (!sh_hdmi_must_reconfigure(hdmi) && |
| 1126 | hdmi->info->state == FBINFO_STATE_RUNNING) { |
| 1127 | /* |
| 1128 | * First activation with the default monitor - just turn |
| 1129 | * on, if we run a resume here, the logo disappears |
| 1130 | */ |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1131 | if (lock_fb_info(hdmi->info)) { |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1132 | sh_hdmi_display_on(hdmi, hdmi->info); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1133 | unlock_fb_info(hdmi->info); |
| 1134 | } |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1135 | } else { |
| 1136 | /* New monitor or have to wake up */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1137 | fb_set_suspend(hdmi->info, 0); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1138 | } |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1139 | |
| 1140 | release_console_sem(); |
| 1141 | } else { |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1142 | ret = 0; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1143 | if (!hdmi->info) |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1144 | goto out; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1145 | |
Guennadi Liakhovetski | 91d63f8 | 2010-11-04 11:05:55 +0000 | [diff] [blame] | 1146 | hdmi->monspec.modedb_len = 0; |
| 1147 | fb_destroy_modedb(hdmi->monspec.modedb); |
| 1148 | hdmi->monspec.modedb = NULL; |
| 1149 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1150 | acquire_console_sem(); |
| 1151 | |
| 1152 | /* HDMI disconnect */ |
| 1153 | fb_set_suspend(hdmi->info, 1); |
| 1154 | |
| 1155 | release_console_sem(); |
| 1156 | pm_runtime_put(hdmi->dev); |
| 1157 | } |
| 1158 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1159 | out: |
Guennadi Liakhovetski | 4232f60 | 2010-11-11 14:45:09 +0000 | [diff] [blame^] | 1160 | if (ret < 0 && ret != -EAGAIN) |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1161 | hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED; |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1162 | mutex_unlock(&hdmi->mutex); |
| 1163 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1164 | dev_dbg(hdmi->dev, "%s(%p): end\n", __func__, pdata->lcd_dev); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1165 | } |
| 1166 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1167 | static int sh_hdmi_notify(struct notifier_block *nb, |
| 1168 | unsigned long action, void *data); |
| 1169 | |
| 1170 | static struct notifier_block sh_hdmi_notifier = { |
| 1171 | .notifier_call = sh_hdmi_notify, |
| 1172 | }; |
| 1173 | |
| 1174 | static int sh_hdmi_notify(struct notifier_block *nb, |
| 1175 | unsigned long action, void *data) |
| 1176 | { |
| 1177 | struct fb_event *event = data; |
| 1178 | struct fb_info *info = event->info; |
| 1179 | struct sh_mobile_lcdc_chan *ch = info->par; |
| 1180 | struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg; |
| 1181 | struct sh_hdmi *hdmi = board_cfg->board_data; |
| 1182 | |
| 1183 | if (nb != &sh_hdmi_notifier || !hdmi || hdmi->info != info) |
| 1184 | return NOTIFY_DONE; |
| 1185 | |
| 1186 | switch(action) { |
| 1187 | case FB_EVENT_FB_REGISTERED: |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1188 | /* Unneeded, activation taken care by sh_hdmi_display_on() */ |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1189 | break; |
| 1190 | case FB_EVENT_FB_UNREGISTERED: |
| 1191 | /* |
| 1192 | * We are called from unregister_framebuffer() with the |
| 1193 | * info->lock held. This is bad for us, because we can race with |
| 1194 | * the scheduled work, which has to call fb_set_suspend(), which |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1195 | * takes info->lock internally, so, sh_hdmi_edid_work_fn() |
| 1196 | * cannot take and hold info->lock for the whole function |
| 1197 | * duration. Using an additional lock creates a classical AB-BA |
| 1198 | * lock up. Therefore, we have to release the info->lock |
| 1199 | * temporarily, synchronise with the work queue and re-acquire |
| 1200 | * the info->lock. |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1201 | */ |
| 1202 | unlock_fb_info(hdmi->info); |
| 1203 | mutex_lock(&hdmi->mutex); |
| 1204 | hdmi->info = NULL; |
| 1205 | mutex_unlock(&hdmi->mutex); |
| 1206 | lock_fb_info(hdmi->info); |
| 1207 | return NOTIFY_OK; |
| 1208 | } |
| 1209 | return NOTIFY_DONE; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | static int __init sh_hdmi_probe(struct platform_device *pdev) |
| 1213 | { |
| 1214 | struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data; |
| 1215 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1216 | struct sh_mobile_lcdc_board_cfg *board_cfg; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1217 | int irq = platform_get_irq(pdev, 0), ret; |
| 1218 | struct sh_hdmi *hdmi; |
| 1219 | long rate; |
| 1220 | |
| 1221 | if (!res || !pdata || irq < 0) |
| 1222 | return -ENODEV; |
| 1223 | |
| 1224 | hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL); |
| 1225 | if (!hdmi) { |
| 1226 | dev_err(&pdev->dev, "Cannot allocate device data\n"); |
| 1227 | return -ENOMEM; |
| 1228 | } |
| 1229 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1230 | mutex_init(&hdmi->mutex); |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 1231 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1232 | hdmi->dev = &pdev->dev; |
| 1233 | |
| 1234 | hdmi->hdmi_clk = clk_get(&pdev->dev, "ick"); |
| 1235 | if (IS_ERR(hdmi->hdmi_clk)) { |
| 1236 | ret = PTR_ERR(hdmi->hdmi_clk); |
| 1237 | dev_err(&pdev->dev, "Unable to get clock: %d\n", ret); |
| 1238 | goto egetclk; |
| 1239 | } |
| 1240 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1241 | /* An arbitrary relaxed pixclock just to get things started: from standard 480p */ |
| 1242 | rate = clk_round_rate(hdmi->hdmi_clk, PICOS2KHZ(37037)); |
| 1243 | if (rate > 0) |
| 1244 | rate = sh_hdmi_clk_configure(hdmi, rate, 0); |
| 1245 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1246 | if (rate < 0) { |
| 1247 | ret = rate; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1248 | goto erate; |
| 1249 | } |
| 1250 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1251 | ret = clk_enable(hdmi->hdmi_clk); |
| 1252 | if (ret < 0) { |
| 1253 | dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret); |
| 1254 | goto erate; |
| 1255 | } |
| 1256 | |
Guennadi Liakhovetski | afe417c | 2010-09-03 07:20:39 +0000 | [diff] [blame] | 1257 | dev_dbg(&pdev->dev, "Enabled HDMI clock at %luHz\n", rate); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1258 | |
| 1259 | if (!request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev))) { |
| 1260 | dev_err(&pdev->dev, "HDMI register region already claimed\n"); |
| 1261 | ret = -EBUSY; |
| 1262 | goto ereqreg; |
| 1263 | } |
| 1264 | |
| 1265 | hdmi->base = ioremap(res->start, resource_size(res)); |
| 1266 | if (!hdmi->base) { |
| 1267 | dev_err(&pdev->dev, "HDMI register region already claimed\n"); |
| 1268 | ret = -ENOMEM; |
| 1269 | goto emap; |
| 1270 | } |
| 1271 | |
| 1272 | platform_set_drvdata(pdev, hdmi); |
| 1273 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1274 | /* Set up LCDC callbacks */ |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1275 | board_cfg = &pdata->lcd_chan->board_cfg; |
| 1276 | board_cfg->owner = THIS_MODULE; |
| 1277 | board_cfg->board_data = hdmi; |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1278 | board_cfg->display_on = sh_hdmi_display_on; |
| 1279 | board_cfg->display_off = sh_hdmi_display_off; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1280 | |
Guennadi Liakhovetski | 6aa966e | 2010-09-03 07:20:31 +0000 | [diff] [blame] | 1281 | INIT_DELAYED_WORK(&hdmi->edid_work, sh_hdmi_edid_work_fn); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1282 | |
| 1283 | pm_runtime_enable(&pdev->dev); |
| 1284 | pm_runtime_resume(&pdev->dev); |
| 1285 | |
Guennadi Liakhovetski | c36940e | 2010-11-02 11:27:16 +0000 | [diff] [blame] | 1286 | /* Product and revision IDs are 0 in sh-mobile version */ |
| 1287 | dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n", |
| 1288 | hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID)); |
| 1289 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1290 | ret = request_irq(irq, sh_hdmi_hotplug, 0, |
| 1291 | dev_name(&pdev->dev), hdmi); |
| 1292 | if (ret < 0) { |
| 1293 | dev_err(&pdev->dev, "Unable to request irq: %d\n", ret); |
| 1294 | goto ereqirq; |
| 1295 | } |
| 1296 | |
Russell King | b377330 | 2010-10-28 20:14:38 +0100 | [diff] [blame] | 1297 | ret = snd_soc_register_codec(&pdev->dev, |
| 1298 | &soc_codec_dev_sh_hdmi, &sh_hdmi_dai, 1); |
| 1299 | if (ret < 0) { |
| 1300 | dev_err(&pdev->dev, "codec registration failed\n"); |
| 1301 | goto ecodec; |
| 1302 | } |
| 1303 | |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1304 | return 0; |
| 1305 | |
Russell King | b377330 | 2010-10-28 20:14:38 +0100 | [diff] [blame] | 1306 | ecodec: |
| 1307 | free_irq(irq, hdmi); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1308 | ereqirq: |
| 1309 | pm_runtime_disable(&pdev->dev); |
| 1310 | iounmap(hdmi->base); |
| 1311 | emap: |
| 1312 | release_mem_region(res->start, resource_size(res)); |
| 1313 | ereqreg: |
| 1314 | clk_disable(hdmi->hdmi_clk); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1315 | erate: |
| 1316 | clk_put(hdmi->hdmi_clk); |
| 1317 | egetclk: |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1318 | mutex_destroy(&hdmi->mutex); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1319 | kfree(hdmi); |
| 1320 | |
| 1321 | return ret; |
| 1322 | } |
| 1323 | |
| 1324 | static int __exit sh_hdmi_remove(struct platform_device *pdev) |
| 1325 | { |
| 1326 | struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data; |
| 1327 | struct sh_hdmi *hdmi = platform_get_drvdata(pdev); |
| 1328 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1329 | struct sh_mobile_lcdc_board_cfg *board_cfg = &pdata->lcd_chan->board_cfg; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1330 | int irq = platform_get_irq(pdev, 0); |
| 1331 | |
Kuninori Morimoto | 1d6be33 | 2010-08-31 14:47:07 +0900 | [diff] [blame] | 1332 | snd_soc_unregister_codec(&pdev->dev); |
| 1333 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1334 | board_cfg->display_on = NULL; |
| 1335 | board_cfg->display_off = NULL; |
| 1336 | board_cfg->board_data = NULL; |
| 1337 | board_cfg->owner = NULL; |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1338 | |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1339 | /* No new work will be scheduled, wait for running ISR */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1340 | free_irq(irq, hdmi); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1341 | /* Wait for already scheduled work */ |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1342 | cancel_delayed_work_sync(&hdmi->edid_work); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1343 | pm_runtime_disable(&pdev->dev); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1344 | clk_disable(hdmi->hdmi_clk); |
| 1345 | clk_put(hdmi->hdmi_clk); |
| 1346 | iounmap(hdmi->base); |
| 1347 | release_mem_region(res->start, resource_size(res)); |
Guennadi Liakhovetski | 6de9edd | 2010-09-03 07:20:23 +0000 | [diff] [blame] | 1348 | mutex_destroy(&hdmi->mutex); |
Guennadi Liakhovetski | 6011bde | 2010-07-21 10:13:21 +0000 | [diff] [blame] | 1349 | kfree(hdmi); |
| 1350 | |
| 1351 | return 0; |
| 1352 | } |
| 1353 | |
| 1354 | static struct platform_driver sh_hdmi_driver = { |
| 1355 | .remove = __exit_p(sh_hdmi_remove), |
| 1356 | .driver = { |
| 1357 | .name = "sh-mobile-hdmi", |
| 1358 | }, |
| 1359 | }; |
| 1360 | |
| 1361 | static int __init sh_hdmi_init(void) |
| 1362 | { |
| 1363 | return platform_driver_probe(&sh_hdmi_driver, sh_hdmi_probe); |
| 1364 | } |
| 1365 | module_init(sh_hdmi_init); |
| 1366 | |
| 1367 | static void __exit sh_hdmi_exit(void) |
| 1368 | { |
| 1369 | platform_driver_unregister(&sh_hdmi_driver); |
| 1370 | } |
| 1371 | module_exit(sh_hdmi_exit); |
| 1372 | |
| 1373 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); |
| 1374 | MODULE_DESCRIPTION("SuperH / ARM-shmobile HDMI driver"); |
| 1375 | MODULE_LICENSE("GPL v2"); |