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6011bdea GL |
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> | |
1d6be338 KM |
25 | #include <sound/soc-dapm.h> |
26 | #include <sound/initval.h> | |
6011bdea GL |
27 | |
28 | #include <video/sh_mobile_hdmi.h> | |
29 | #include <video/sh_mobile_lcdc.h> | |
30 | ||
6de9edd5 GL |
31 | #include "sh_mobile_lcdcfb.h" |
32 | ||
6011bdea GL |
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; | |
6aa966e6 | 211 | enum hotplug_state hp_state; /* hot-plug status */ |
0ea2af1c GL |
212 | u8 preprogrammed_vic; /* use a pre-programmed VIC or |
213 | the external mode */ | |
6011bdea GL |
214 | struct clk *hdmi_clk; |
215 | struct device *dev; | |
216 | struct fb_info *info; | |
6de9edd5 | 217 | struct mutex mutex; /* Protect the info pointer */ |
6011bdea GL |
218 | struct delayed_work edid_work; |
219 | struct fb_var_screeninfo var; | |
afe417c0 | 220 | struct fb_monspecs monspec; |
6011bdea GL |
221 | }; |
222 | ||
223 | static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg) | |
224 | { | |
225 | iowrite8(data, hdmi->base + reg); | |
226 | } | |
227 | ||
228 | static u8 hdmi_read(struct sh_hdmi *hdmi, u8 reg) | |
229 | { | |
230 | return ioread8(hdmi->base + reg); | |
231 | } | |
232 | ||
f4363b7d KM |
233 | /* |
234 | * HDMI sound | |
235 | */ | |
1d6be338 KM |
236 | static unsigned int sh_hdmi_snd_read(struct snd_soc_codec *codec, |
237 | unsigned int reg) | |
238 | { | |
239 | struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec); | |
240 | ||
241 | return hdmi_read(hdmi, reg); | |
242 | } | |
243 | ||
244 | static int sh_hdmi_snd_write(struct snd_soc_codec *codec, | |
245 | unsigned int reg, | |
246 | unsigned int value) | |
247 | { | |
248 | struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec); | |
249 | ||
250 | hdmi_write(hdmi, value, reg); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static struct snd_soc_dai_driver sh_hdmi_dai = { | |
255 | .name = "sh_mobile_hdmi-hifi", | |
256 | .playback = { | |
257 | .stream_name = "Playback", | |
17731f8d KM |
258 | .channels_min = 2, |
259 | .channels_max = 8, | |
260 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | | |
261 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | | |
262 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | | |
263 | SNDRV_PCM_RATE_192000, | |
1d6be338 KM |
264 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, |
265 | }, | |
266 | }; | |
267 | ||
268 | static int sh_hdmi_snd_probe(struct snd_soc_codec *codec) | |
269 | { | |
270 | dev_info(codec->dev, "SH Mobile HDMI Audio Codec"); | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | static struct snd_soc_codec_driver soc_codec_dev_sh_hdmi = { | |
276 | .probe = sh_hdmi_snd_probe, | |
277 | .read = sh_hdmi_snd_read, | |
278 | .write = sh_hdmi_snd_write, | |
279 | }; | |
280 | ||
f4363b7d KM |
281 | /* |
282 | * HDMI video | |
283 | */ | |
1d6be338 | 284 | |
6011bdea | 285 | /* External video parameter settings */ |
6aa966e6 | 286 | static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi) |
6011bdea GL |
287 | { |
288 | struct fb_var_screeninfo *var = &hdmi->var; | |
289 | u16 htotal, hblank, hdelay, vtotal, vblank, vdelay, voffset; | |
290 | u8 sync = 0; | |
291 | ||
292 | htotal = var->xres + var->right_margin + var->left_margin + var->hsync_len; | |
293 | ||
294 | hdelay = var->hsync_len + var->left_margin; | |
295 | hblank = var->right_margin + hdelay; | |
296 | ||
297 | /* | |
298 | * Vertical timing looks a bit different in Figure 18, | |
299 | * but let's try the same first by setting offset = 0 | |
300 | */ | |
301 | vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len; | |
302 | ||
303 | vdelay = var->vsync_len + var->upper_margin; | |
304 | vblank = var->lower_margin + vdelay; | |
305 | voffset = min(var->upper_margin / 2, 6U); | |
306 | ||
307 | /* | |
308 | * [3]: VSYNC polarity: Positive | |
309 | * [2]: HSYNC polarity: Positive | |
310 | * [1]: Interlace/Progressive: Progressive | |
311 | * [0]: External video settings enable: used. | |
312 | */ | |
313 | if (var->sync & FB_SYNC_HOR_HIGH_ACT) | |
314 | sync |= 4; | |
315 | if (var->sync & FB_SYNC_VERT_HIGH_ACT) | |
316 | sync |= 8; | |
317 | ||
6aa966e6 GL |
318 | dev_dbg(hdmi->dev, "H: %u, %u, %u, %u; V: %u, %u, %u, %u; sync 0x%x\n", |
319 | htotal, hblank, hdelay, var->hsync_len, | |
320 | vtotal, vblank, vdelay, var->vsync_len, sync); | |
6011bdea GL |
321 | |
322 | hdmi_write(hdmi, sync | (voffset << 4), HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS); | |
323 | ||
324 | hdmi_write(hdmi, htotal, HDMI_EXTERNAL_H_TOTAL_7_0); | |
325 | hdmi_write(hdmi, htotal >> 8, HDMI_EXTERNAL_H_TOTAL_11_8); | |
326 | ||
327 | hdmi_write(hdmi, hblank, HDMI_EXTERNAL_H_BLANK_7_0); | |
328 | hdmi_write(hdmi, hblank >> 8, HDMI_EXTERNAL_H_BLANK_9_8); | |
329 | ||
330 | hdmi_write(hdmi, hdelay, HDMI_EXTERNAL_H_DELAY_7_0); | |
331 | hdmi_write(hdmi, hdelay >> 8, HDMI_EXTERNAL_H_DELAY_9_8); | |
332 | ||
333 | hdmi_write(hdmi, var->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0); | |
334 | hdmi_write(hdmi, var->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8); | |
335 | ||
336 | hdmi_write(hdmi, vtotal, HDMI_EXTERNAL_V_TOTAL_7_0); | |
337 | hdmi_write(hdmi, vtotal >> 8, HDMI_EXTERNAL_V_TOTAL_9_8); | |
338 | ||
339 | hdmi_write(hdmi, vblank, HDMI_EXTERNAL_V_BLANK); | |
340 | ||
341 | hdmi_write(hdmi, vdelay, HDMI_EXTERNAL_V_DELAY); | |
342 | ||
343 | hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION); | |
344 | ||
89712699 | 345 | /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */ |
0ea2af1c | 346 | if (!hdmi->preprogrammed_vic) |
89712699 GL |
347 | hdmi_write(hdmi, sync | 1 | (voffset << 4), |
348 | HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS); | |
6011bdea GL |
349 | } |
350 | ||
351 | /** | |
352 | * sh_hdmi_video_config() | |
353 | */ | |
354 | static void sh_hdmi_video_config(struct sh_hdmi *hdmi) | |
355 | { | |
356 | /* | |
357 | * [7:4]: Audio sampling frequency: 48kHz | |
358 | * [3:1]: Input video format: RGB and YCbCr 4:4:4 (Y on Green) | |
359 | * [0]: Internal/External DE select: internal | |
360 | */ | |
361 | hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1); | |
362 | ||
363 | /* | |
364 | * [7:6]: Video output format: RGB 4:4:4 | |
365 | * [5:4]: Input video data width: 8 bit | |
366 | * [3:1]: EAV/SAV location: channel 1 | |
367 | * [0]: Video input color space: RGB | |
368 | */ | |
369 | hdmi_write(hdmi, 0x34, HDMI_VIDEO_SETTING_1); | |
370 | ||
371 | /* | |
372 | * [7:6]: Together with bit [6] of HDMI_AUDIO_VIDEO_SETTING_2, which is | |
373 | * left at 0 by default, this configures 24bpp and sets the Color Depth | |
374 | * (CD) field in the General Control Packet | |
375 | */ | |
376 | hdmi_write(hdmi, 0x20, HDMI_DEEP_COLOR_MODES); | |
377 | } | |
378 | ||
379 | /** | |
380 | * sh_hdmi_audio_config() | |
381 | */ | |
382 | static void sh_hdmi_audio_config(struct sh_hdmi *hdmi) | |
383 | { | |
6d865771 KM |
384 | u8 data; |
385 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; | |
386 | ||
6011bdea GL |
387 | /* |
388 | * [7:4] L/R data swap control | |
389 | * [3:0] appropriate N[19:16] | |
390 | */ | |
391 | hdmi_write(hdmi, 0x00, HDMI_L_R_DATA_SWAP_CTRL_RPKT); | |
392 | /* appropriate N[15:8] */ | |
393 | hdmi_write(hdmi, 0x18, HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8); | |
394 | /* appropriate N[7:0] */ | |
395 | hdmi_write(hdmi, 0x00, HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0); | |
396 | ||
397 | /* [7:4] 48 kHz SPDIF not used */ | |
398 | hdmi_write(hdmi, 0x20, HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS); | |
399 | ||
400 | /* | |
401 | * [6:5] set required down sampling rate if required | |
402 | * [4:3] set required audio source | |
403 | */ | |
dec6aa49 | 404 | switch (pdata->flags & HDMI_SND_SRC_MASK) { |
6d865771 | 405 | default: |
f4363b7d | 406 | /* fall through */ |
dec6aa49 KM |
407 | case HDMI_SND_SRC_I2S: |
408 | data = 0x0 << 3; | |
6d865771 | 409 | break; |
dec6aa49 KM |
410 | case HDMI_SND_SRC_SPDIF: |
411 | data = 0x1 << 3; | |
6d865771 | 412 | break; |
dec6aa49 KM |
413 | case HDMI_SND_SRC_DSD: |
414 | data = 0x2 << 3; | |
6d865771 | 415 | break; |
dec6aa49 KM |
416 | case HDMI_SND_SRC_HBR: |
417 | data = 0x3 << 3; | |
6d865771 KM |
418 | break; |
419 | } | |
420 | hdmi_write(hdmi, data, HDMI_AUDIO_SETTING_1); | |
6011bdea GL |
421 | |
422 | /* [3:0] set sending channel number for channel status */ | |
423 | hdmi_write(hdmi, 0x40, HDMI_AUDIO_SETTING_2); | |
424 | ||
425 | /* | |
426 | * [5:2] set valid I2S source input pin | |
427 | * [1:0] set input I2S source mode | |
428 | */ | |
429 | hdmi_write(hdmi, 0x04, HDMI_I2S_AUDIO_SET); | |
430 | ||
431 | /* [7:4] set valid DSD source input pin */ | |
432 | hdmi_write(hdmi, 0x00, HDMI_DSD_AUDIO_SET); | |
433 | ||
434 | /* [7:0] set appropriate I2S input pin swap settings if required */ | |
435 | hdmi_write(hdmi, 0x00, HDMI_I2S_INPUT_PIN_SWAP); | |
436 | ||
437 | /* | |
438 | * [7] set validity bit for channel status | |
439 | * [3:0] set original sample frequency for channel status | |
440 | */ | |
441 | hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_1); | |
442 | ||
443 | /* | |
444 | * [7] set value for channel status | |
445 | * [6] set value for channel status | |
446 | * [5] set copyright bit for channel status | |
447 | * [4:2] set additional information for channel status | |
448 | * [1:0] set clock accuracy for channel status | |
449 | */ | |
450 | hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_2); | |
451 | ||
452 | /* [7:0] set category code for channel status */ | |
453 | hdmi_write(hdmi, 0x00, HDMI_CATEGORY_CODE); | |
454 | ||
455 | /* | |
456 | * [7:4] set source number for channel status | |
457 | * [3:0] set word length for channel status | |
458 | */ | |
459 | hdmi_write(hdmi, 0x00, HDMI_SOURCE_NUM_AUDIO_WORD_LEN); | |
460 | ||
461 | /* [7:4] set sample frequency for channel status */ | |
462 | hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1); | |
463 | } | |
464 | ||
465 | /** | |
6e45746c | 466 | * sh_hdmi_phy_config() - configure the HDMI PHY for the used video mode |
6011bdea GL |
467 | */ |
468 | static void sh_hdmi_phy_config(struct sh_hdmi *hdmi) | |
469 | { | |
0ea2af1c GL |
470 | if (hdmi->var.pixclock < 10000) { |
471 | /* for 1080p8bit 148MHz */ | |
472 | hdmi_write(hdmi, 0x1d, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); | |
473 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); | |
474 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); | |
475 | hdmi_write(hdmi, 0x4c, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); | |
476 | hdmi_write(hdmi, 0x1e, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); | |
477 | hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); | |
478 | hdmi_write(hdmi, 0x0e, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); | |
479 | hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); | |
480 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); | |
481 | } else if (hdmi->var.pixclock < 30000) { | |
6e45746c GL |
482 | /* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */ |
483 | /* | |
484 | * [1:0] Speed_A | |
485 | * [3:2] Speed_B | |
486 | * [4] PLLA_Bypass | |
487 | * [6] DRV_TEST_EN | |
488 | * [7] DRV_TEST_IN | |
489 | */ | |
9289c475 | 490 | hdmi_write(hdmi, 0x0f, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); |
6e45746c GL |
491 | /* PLLB_CONFIG[17], PLLA_CONFIG[17] - not in PHY datasheet */ |
492 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); | |
493 | /* | |
494 | * [2:0] BGR_I_OFFSET | |
495 | * [6:4] BGR_V_OFFSET | |
496 | */ | |
497 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); | |
498 | /* PLLA_CONFIG[7:0]: VCO gain, VCO offset, LPF resistance[0] */ | |
499 | hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); | |
500 | /* | |
501 | * PLLA_CONFIG[15:8]: regulator voltage[0], CP current, | |
502 | * LPF capacitance, LPF resistance[1] | |
503 | */ | |
504 | hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); | |
505 | /* PLLB_CONFIG[7:0]: LPF resistance[0], VCO offset, VCO gain */ | |
506 | hdmi_write(hdmi, 0x4A, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); | |
507 | /* | |
508 | * PLLB_CONFIG[15:8]: regulator voltage[0], CP current, | |
509 | * LPF capacitance, LPF resistance[1] | |
510 | */ | |
9289c475 | 511 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); |
6e45746c GL |
512 | /* DRV_CONFIG, PE_CONFIG */ |
513 | hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); | |
514 | /* | |
515 | * [2:0] AMON_SEL (4 == LPF voltage) | |
516 | * [4] PLLA_CONFIG[16] | |
517 | * [5] PLLB_CONFIG[16] | |
518 | */ | |
519 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); | |
520 | } else { | |
521 | /* for 480p8bit 27MHz */ | |
522 | hdmi_write(hdmi, 0x19, HDMI_SLIPHDMIT_PARAM_SETTINGS_1); | |
523 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2); | |
524 | hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3); | |
525 | hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5); | |
526 | hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6); | |
527 | hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7); | |
528 | hdmi_write(hdmi, 0x0F, HDMI_SLIPHDMIT_PARAM_SETTINGS_8); | |
529 | hdmi_write(hdmi, 0x20, HDMI_SLIPHDMIT_PARAM_SETTINGS_9); | |
530 | hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10); | |
531 | } | |
6011bdea GL |
532 | } |
533 | ||
534 | /** | |
535 | * sh_hdmi_avi_infoframe_setup() - Auxiliary Video Information InfoFrame CONTROL PACKET | |
536 | */ | |
537 | static void sh_hdmi_avi_infoframe_setup(struct sh_hdmi *hdmi) | |
538 | { | |
6e45746c GL |
539 | u8 vic; |
540 | ||
6011bdea GL |
541 | /* AVI InfoFrame */ |
542 | hdmi_write(hdmi, 0x06, HDMI_CTRL_PKT_BUF_INDEX); | |
543 | ||
544 | /* Packet Type = 0x82 */ | |
545 | hdmi_write(hdmi, 0x82, HDMI_CTRL_PKT_BUF_ACCESS_HB0); | |
546 | ||
547 | /* Version = 0x02 */ | |
548 | hdmi_write(hdmi, 0x02, HDMI_CTRL_PKT_BUF_ACCESS_HB1); | |
549 | ||
550 | /* Length = 13 (0x0D) */ | |
551 | hdmi_write(hdmi, 0x0D, HDMI_CTRL_PKT_BUF_ACCESS_HB2); | |
552 | ||
553 | /* N. A. Checksum */ | |
554 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0); | |
555 | ||
556 | /* | |
557 | * Y = RGB | |
558 | * A0 = No Data | |
559 | * B = Bar Data not valid | |
560 | * S = No Data | |
561 | */ | |
562 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1); | |
563 | ||
564 | /* | |
6aa966e6 GL |
565 | * [7:6] C = Colorimetry: no data |
566 | * [5:4] M = 2: 16:9, 1: 4:3 Picture Aspect Ratio | |
567 | * [3:0] R = 8: Active Frame Aspect Ratio: same as picture aspect ratio | |
6011bdea GL |
568 | */ |
569 | hdmi_write(hdmi, 0x28, HDMI_CTRL_PKT_BUF_ACCESS_PB2); | |
570 | ||
571 | /* | |
572 | * ITC = No Data | |
573 | * EC = xvYCC601 | |
574 | * Q = Default (depends on video format) | |
575 | * SC = No Known non_uniform Scaling | |
576 | */ | |
577 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3); | |
578 | ||
579 | /* | |
0ea2af1c GL |
580 | * VIC should be ignored if external config is used, so, we could just use 0, |
581 | * but play safe and use a valid value in any case just in case | |
6011bdea | 582 | */ |
0ea2af1c GL |
583 | if (hdmi->preprogrammed_vic) |
584 | vic = hdmi->preprogrammed_vic; | |
6e45746c GL |
585 | else |
586 | vic = 4; | |
587 | hdmi_write(hdmi, vic, HDMI_CTRL_PKT_BUF_ACCESS_PB4); | |
6011bdea GL |
588 | |
589 | /* PR = No Repetition */ | |
590 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5); | |
591 | ||
592 | /* Line Number of End of Top Bar (lower 8 bits) */ | |
593 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6); | |
594 | ||
595 | /* Line Number of End of Top Bar (upper 8 bits) */ | |
596 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7); | |
597 | ||
598 | /* Line Number of Start of Bottom Bar (lower 8 bits) */ | |
599 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8); | |
600 | ||
601 | /* Line Number of Start of Bottom Bar (upper 8 bits) */ | |
602 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9); | |
603 | ||
604 | /* Pixel Number of End of Left Bar (lower 8 bits) */ | |
605 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10); | |
606 | ||
607 | /* Pixel Number of End of Left Bar (upper 8 bits) */ | |
608 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB11); | |
609 | ||
610 | /* Pixel Number of Start of Right Bar (lower 8 bits) */ | |
611 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB12); | |
612 | ||
613 | /* Pixel Number of Start of Right Bar (upper 8 bits) */ | |
614 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB13); | |
615 | } | |
616 | ||
617 | /** | |
618 | * sh_hdmi_audio_infoframe_setup() - Audio InfoFrame of CONTROL PACKET | |
619 | */ | |
620 | static void sh_hdmi_audio_infoframe_setup(struct sh_hdmi *hdmi) | |
621 | { | |
622 | /* Audio InfoFrame */ | |
623 | hdmi_write(hdmi, 0x08, HDMI_CTRL_PKT_BUF_INDEX); | |
624 | ||
625 | /* Packet Type = 0x84 */ | |
626 | hdmi_write(hdmi, 0x84, HDMI_CTRL_PKT_BUF_ACCESS_HB0); | |
627 | ||
628 | /* Version Number = 0x01 */ | |
629 | hdmi_write(hdmi, 0x01, HDMI_CTRL_PKT_BUF_ACCESS_HB1); | |
630 | ||
631 | /* 0 Length = 10 (0x0A) */ | |
632 | hdmi_write(hdmi, 0x0A, HDMI_CTRL_PKT_BUF_ACCESS_HB2); | |
633 | ||
634 | /* n. a. Checksum */ | |
635 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0); | |
636 | ||
637 | /* Audio Channel Count = Refer to Stream Header */ | |
638 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1); | |
639 | ||
640 | /* Refer to Stream Header */ | |
641 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB2); | |
642 | ||
643 | /* Format depends on coding type (i.e. CT0...CT3) */ | |
644 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3); | |
645 | ||
646 | /* Speaker Channel Allocation = Front Right + Front Left */ | |
647 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB4); | |
648 | ||
649 | /* Level Shift Value = 0 dB, Down - mix is permitted or no information */ | |
650 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5); | |
651 | ||
652 | /* Reserved (0) */ | |
653 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6); | |
654 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7); | |
655 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8); | |
656 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9); | |
657 | hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10); | |
658 | } | |
659 | ||
6011bdea GL |
660 | /** |
661 | * sh_hdmi_configure() - Initialise HDMI for output | |
662 | */ | |
663 | static void sh_hdmi_configure(struct sh_hdmi *hdmi) | |
664 | { | |
665 | /* Configure video format */ | |
666 | sh_hdmi_video_config(hdmi); | |
667 | ||
668 | /* Configure audio format */ | |
669 | sh_hdmi_audio_config(hdmi); | |
670 | ||
671 | /* Configure PHY */ | |
672 | sh_hdmi_phy_config(hdmi); | |
673 | ||
674 | /* Auxiliary Video Information (AVI) InfoFrame */ | |
675 | sh_hdmi_avi_infoframe_setup(hdmi); | |
676 | ||
677 | /* Audio InfoFrame */ | |
678 | sh_hdmi_audio_infoframe_setup(hdmi); | |
679 | ||
6011bdea GL |
680 | /* |
681 | * Control packet auto send with VSYNC control: auto send | |
682 | * General control, Gamut metadata, ISRC, and ACP packets | |
683 | */ | |
684 | hdmi_write(hdmi, 0x8E, HDMI_CTRL_PKT_AUTO_SEND); | |
685 | ||
686 | /* FIXME */ | |
687 | msleep(10); | |
688 | ||
689 | /* PS mode b->d, reset PLLA and PLLB */ | |
690 | hdmi_write(hdmi, 0x4C, HDMI_SYSTEM_CTRL); | |
691 | ||
692 | udelay(10); | |
693 | ||
694 | hdmi_write(hdmi, 0x40, HDMI_SYSTEM_CTRL); | |
695 | } | |
696 | ||
f1198d1e | 697 | static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi, |
c36940e6 GL |
698 | const struct fb_videomode *mode, |
699 | unsigned long *hdmi_rate, unsigned long *parent_rate) | |
6011bdea | 700 | { |
c36940e6 GL |
701 | unsigned long target = PICOS2KHZ(mode->pixclock) * 1000, rate_error; |
702 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; | |
703 | ||
704 | *hdmi_rate = clk_round_rate(hdmi->hdmi_clk, target); | |
705 | if ((long)*hdmi_rate < 0) | |
706 | *hdmi_rate = clk_get_rate(hdmi->hdmi_clk); | |
707 | ||
708 | rate_error = (long)*hdmi_rate > 0 ? abs(*hdmi_rate - target) : ULONG_MAX; | |
709 | if (rate_error && pdata->clk_optimize_parent) | |
710 | rate_error = pdata->clk_optimize_parent(target, hdmi_rate, parent_rate); | |
711 | else if (clk_get_parent(hdmi->hdmi_clk)) | |
712 | *parent_rate = clk_get_rate(clk_get_parent(hdmi->hdmi_clk)); | |
f1198d1e GL |
713 | |
714 | dev_dbg(hdmi->dev, "%u-%u-%u-%u x %u-%u-%u-%u\n", | |
715 | mode->left_margin, mode->xres, | |
716 | mode->right_margin, mode->hsync_len, | |
717 | mode->upper_margin, mode->yres, | |
718 | mode->lower_margin, mode->vsync_len); | |
719 | ||
c36940e6 GL |
720 | dev_dbg(hdmi->dev, "\t@%lu(+/-%lu)Hz, e=%lu / 1000, r=%uHz, p=%luHz\n", target, |
721 | rate_error, rate_error ? 10000 / (10 * target / rate_error) : 0, | |
722 | mode->refresh, *parent_rate); | |
f1198d1e GL |
723 | |
724 | return rate_error; | |
725 | } | |
726 | ||
c36940e6 GL |
727 | static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate, |
728 | unsigned long *parent_rate) | |
6011bdea | 729 | { |
6ee48452 | 730 | struct fb_var_screeninfo tmpvar; |
6ee48452 | 731 | struct fb_var_screeninfo *var = &tmpvar; |
afe417c0 | 732 | const struct fb_videomode *mode, *found = NULL; |
f1198d1e GL |
733 | struct fb_info *info = hdmi->info; |
734 | struct fb_modelist *modelist = NULL; | |
735 | unsigned int f_width = 0, f_height = 0, f_refresh = 0; | |
736 | unsigned long found_rate_error = ULONG_MAX; /* silly compiler... */ | |
737 | bool exact_match = false; | |
6011bdea | 738 | u8 edid[128]; |
f1198d1e GL |
739 | char *forced; |
740 | int i; | |
6011bdea GL |
741 | |
742 | /* Read EDID */ | |
6aa966e6 | 743 | dev_dbg(hdmi->dev, "Read back EDID code:"); |
6011bdea GL |
744 | for (i = 0; i < 128; i++) { |
745 | edid[i] = hdmi_read(hdmi, HDMI_EDID_KSV_FIFO_ACCESS_WINDOW); | |
746 | #ifdef DEBUG | |
747 | if ((i % 16) == 0) { | |
748 | printk(KERN_CONT "\n"); | |
749 | printk(KERN_DEBUG "%02X | %02X", i, edid[i]); | |
750 | } else { | |
751 | printk(KERN_CONT " %02X", edid[i]); | |
752 | } | |
753 | #endif | |
754 | } | |
755 | #ifdef DEBUG | |
756 | printk(KERN_CONT "\n"); | |
757 | #endif | |
afe417c0 GL |
758 | |
759 | fb_edid_to_monspecs(edid, &hdmi->monspec); | |
760 | ||
f1198d1e GL |
761 | fb_get_options("sh_mobile_lcdc", &forced); |
762 | if (forced && *forced) { | |
763 | /* Only primitive parsing so far */ | |
764 | i = sscanf(forced, "%ux%u@%u", | |
765 | &f_width, &f_height, &f_refresh); | |
766 | if (i < 2) { | |
767 | f_width = 0; | |
768 | f_height = 0; | |
769 | } | |
770 | dev_dbg(hdmi->dev, "Forced mode %ux%u@%uHz\n", | |
771 | f_width, f_height, f_refresh); | |
772 | } | |
773 | ||
774 | /* Walk monitor modes to find the best or the exact match */ | |
775 | for (i = 0, mode = hdmi->monspec.modedb; | |
776 | f_width && f_height && i < hdmi->monspec.modedb_len && !exact_match; | |
afe417c0 | 777 | i++, mode++) { |
c36940e6 | 778 | unsigned long rate_error; |
f1198d1e GL |
779 | |
780 | /* No interest in unmatching modes */ | |
781 | if (f_width != mode->xres || f_height != mode->yres) | |
782 | continue; | |
c36940e6 GL |
783 | |
784 | rate_error = sh_hdmi_rate_error(hdmi, mode, hdmi_rate, parent_rate); | |
785 | ||
f1198d1e | 786 | if (f_refresh == mode->refresh || (!f_refresh && !rate_error)) |
afe417c0 | 787 | /* |
f1198d1e GL |
788 | * Exact match if either the refresh rate matches or it |
789 | * hasn't been specified and we've found a mode, for | |
790 | * which we can configure the clock precisely | |
afe417c0 | 791 | */ |
f1198d1e GL |
792 | exact_match = true; |
793 | else if (found && found_rate_error <= rate_error) | |
794 | /* | |
795 | * We otherwise search for the closest matching clock | |
796 | * rate - either if no refresh rate has been specified | |
797 | * or we cannot find an exactly matching one | |
798 | */ | |
799 | continue; | |
800 | ||
801 | /* Check if supported: sufficient fb memory, supported clock-rate */ | |
802 | fb_videomode_to_var(var, mode); | |
803 | ||
804 | if (info && info->fbops->fb_check_var && | |
805 | info->fbops->fb_check_var(var, info)) { | |
806 | exact_match = false; | |
807 | continue; | |
afe417c0 | 808 | } |
f1198d1e GL |
809 | |
810 | found = mode; | |
811 | found_rate_error = rate_error; | |
afe417c0 GL |
812 | } |
813 | ||
814 | /* | |
f1198d1e GL |
815 | * TODO 1: if no ->info is present, postpone running the config until |
816 | * after ->info first gets registered. | |
817 | * TODO 2: consider registering the HDMI platform device from the LCDC | |
818 | * driver, and passing ->info with HDMI platform data. | |
afe417c0 | 819 | */ |
f1198d1e GL |
820 | if (info && !found) { |
821 | modelist = hdmi->info->modelist.next && | |
822 | !list_empty(&hdmi->info->modelist) ? | |
823 | list_entry(hdmi->info->modelist.next, | |
824 | struct fb_modelist, list) : | |
825 | NULL; | |
826 | ||
827 | if (modelist) { | |
828 | found = &modelist->mode; | |
c36940e6 | 829 | found_rate_error = sh_hdmi_rate_error(hdmi, found, hdmi_rate, parent_rate); |
afe417c0 GL |
830 | } |
831 | } | |
832 | ||
afe417c0 GL |
833 | /* No cookie today */ |
834 | if (!found) | |
835 | return -ENXIO; | |
836 | ||
0ea2af1c GL |
837 | if (found->xres == 640 && found->yres == 480 && found->refresh == 60) |
838 | hdmi->preprogrammed_vic = 1; | |
839 | else if (found->xres == 720 && found->yres == 480 && found->refresh == 60) | |
840 | hdmi->preprogrammed_vic = 2; | |
841 | else if (found->xres == 720 && found->yres == 576 && found->refresh == 50) | |
842 | hdmi->preprogrammed_vic = 17; | |
843 | else if (found->xres == 1280 && found->yres == 720 && found->refresh == 60) | |
844 | hdmi->preprogrammed_vic = 4; | |
845 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 24) | |
846 | hdmi->preprogrammed_vic = 32; | |
847 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 50) | |
848 | hdmi->preprogrammed_vic = 31; | |
849 | else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 60) | |
850 | hdmi->preprogrammed_vic = 16; | |
89712699 | 851 | else |
0ea2af1c | 852 | hdmi->preprogrammed_vic = 0; |
89712699 | 853 | |
c36940e6 | 854 | dev_dbg(hdmi->dev, "Using %s %s mode %ux%u@%uHz (%luHz), clock error %luHz\n", |
0ea2af1c | 855 | modelist ? "default" : "EDID", hdmi->preprogrammed_vic ? "VIC" : "external", |
c36940e6 GL |
856 | found->xres, found->yres, found->refresh, |
857 | PICOS2KHZ(found->pixclock) * 1000, found_rate_error); | |
858 | ||
afe417c0 | 859 | fb_videomode_to_var(&hdmi->var, found); |
6aa966e6 | 860 | sh_hdmi_external_video_param(hdmi); |
afe417c0 GL |
861 | |
862 | return 0; | |
6011bdea GL |
863 | } |
864 | ||
865 | static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id) | |
866 | { | |
867 | struct sh_hdmi *hdmi = dev_id; | |
868 | u8 status1, status2, mask1, mask2; | |
869 | ||
870 | /* mode_b and PLLA and PLLB reset */ | |
871 | hdmi_write(hdmi, 0x2C, HDMI_SYSTEM_CTRL); | |
872 | ||
873 | /* How long shall reset be held? */ | |
874 | udelay(10); | |
875 | ||
876 | /* mode_b and PLLA and PLLB reset release */ | |
877 | hdmi_write(hdmi, 0x20, HDMI_SYSTEM_CTRL); | |
878 | ||
879 | status1 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_1); | |
880 | status2 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_2); | |
881 | ||
882 | mask1 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_1); | |
883 | mask2 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_2); | |
884 | ||
885 | /* Correct would be to ack only set bits, but the datasheet requires 0xff */ | |
886 | hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_1); | |
887 | hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_2); | |
888 | ||
889 | if (printk_ratelimit()) | |
6aa966e6 GL |
890 | dev_dbg(hdmi->dev, "IRQ #%d: Status #1: 0x%x & 0x%x, #2: 0x%x & 0x%x\n", |
891 | irq, status1, mask1, status2, mask2); | |
6011bdea GL |
892 | |
893 | if (!((status1 & mask1) | (status2 & mask2))) { | |
894 | return IRQ_NONE; | |
895 | } else if (status1 & 0xc0) { | |
896 | u8 msens; | |
897 | ||
898 | /* Datasheet specifies 10ms... */ | |
899 | udelay(500); | |
900 | ||
901 | msens = hdmi_read(hdmi, HDMI_HOT_PLUG_MSENS_STATUS); | |
6aa966e6 | 902 | dev_dbg(hdmi->dev, "MSENS 0x%x\n", msens); |
6011bdea GL |
903 | /* Check, if hot plug & MSENS pin status are both high */ |
904 | if ((msens & 0xC0) == 0xC0) { | |
905 | /* Display plug in */ | |
906 | hdmi->hp_state = HDMI_HOTPLUG_CONNECTED; | |
907 | ||
908 | /* Set EDID word address */ | |
909 | hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS); | |
910 | /* Set EDID segment pointer */ | |
911 | hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER); | |
912 | /* Enable EDID interrupt */ | |
913 | hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1); | |
914 | } else if (!(status1 & 0x80)) { | |
915 | /* Display unplug, beware multiple interrupts */ | |
916 | if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED) | |
917 | schedule_delayed_work(&hdmi->edid_work, 0); | |
918 | ||
919 | hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED; | |
920 | /* display_off will switch back to mode_a */ | |
921 | } | |
922 | } else if (status1 & 2) { | |
923 | /* EDID error interrupt: retry */ | |
924 | /* Set EDID word address */ | |
925 | hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS); | |
926 | /* Set EDID segment pointer */ | |
927 | hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER); | |
928 | } else if (status1 & 4) { | |
929 | /* Disable EDID interrupt */ | |
930 | hdmi_write(hdmi, 0xC0, HDMI_INTERRUPT_MASK_1); | |
931 | hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE; | |
932 | schedule_delayed_work(&hdmi->edid_work, msecs_to_jiffies(10)); | |
933 | } | |
934 | ||
935 | return IRQ_HANDLED; | |
936 | } | |
937 | ||
6de9edd5 | 938 | /* locking: called with info->lock held, or before register_framebuffer() */ |
6aa966e6 | 939 | static void sh_hdmi_display_on(void *arg, struct fb_info *info) |
6011bdea | 940 | { |
6de9edd5 GL |
941 | /* |
942 | * info is guaranteed to be valid, when we are called, because our | |
943 | * FB_EVENT_FB_UNBIND notify is also called with info->lock held | |
944 | */ | |
6011bdea GL |
945 | struct sh_hdmi *hdmi = arg; |
946 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; | |
1c120deb | 947 | struct sh_mobile_lcdc_chan *ch = info->par; |
6011bdea | 948 | |
6aa966e6 GL |
949 | dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, |
950 | pdata->lcd_dev, info->state); | |
6de9edd5 GL |
951 | |
952 | /* No need to lock */ | |
6011bdea | 953 | hdmi->info = info; |
6011bdea | 954 | |
6011bdea | 955 | /* |
6aa966e6 GL |
956 | * hp_state can be set to |
957 | * HDMI_HOTPLUG_DISCONNECTED: on monitor unplug | |
958 | * HDMI_HOTPLUG_CONNECTED: on monitor plug-in | |
959 | * HDMI_HOTPLUG_EDID_DONE: on EDID read completion | |
6011bdea | 960 | */ |
6011bdea GL |
961 | switch (hdmi->hp_state) { |
962 | case HDMI_HOTPLUG_EDID_DONE: | |
963 | /* PS mode d->e. All functions are active */ | |
964 | hdmi_write(hdmi, 0x80, HDMI_SYSTEM_CTRL); | |
6aa966e6 | 965 | dev_dbg(hdmi->dev, "HDMI running\n"); |
6011bdea GL |
966 | break; |
967 | case HDMI_HOTPLUG_DISCONNECTED: | |
968 | info->state = FBINFO_STATE_SUSPENDED; | |
969 | default: | |
1c120deb | 970 | hdmi->var = ch->display_var; |
6011bdea GL |
971 | } |
972 | } | |
973 | ||
6de9edd5 | 974 | /* locking: called with info->lock held */ |
6aa966e6 | 975 | static void sh_hdmi_display_off(void *arg) |
6011bdea GL |
976 | { |
977 | struct sh_hdmi *hdmi = arg; | |
978 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; | |
979 | ||
6aa966e6 | 980 | dev_dbg(hdmi->dev, "%s(%p)\n", __func__, pdata->lcd_dev); |
6011bdea GL |
981 | /* PS mode e->a */ |
982 | hdmi_write(hdmi, 0x10, HDMI_SYSTEM_CTRL); | |
983 | } | |
984 | ||
afe417c0 GL |
985 | static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi) |
986 | { | |
987 | struct fb_info *info = hdmi->info; | |
988 | struct sh_mobile_lcdc_chan *ch = info->par; | |
989 | struct fb_var_screeninfo *new_var = &hdmi->var, *old_var = &ch->display_var; | |
990 | struct fb_videomode mode1, mode2; | |
991 | ||
992 | fb_var_to_videomode(&mode1, old_var); | |
993 | fb_var_to_videomode(&mode2, new_var); | |
994 | ||
995 | dev_dbg(info->dev, "Old %ux%u, new %ux%u\n", | |
996 | mode1.xres, mode1.yres, mode2.xres, mode2.yres); | |
997 | ||
998 | if (fb_mode_is_equal(&mode1, &mode2)) | |
999 | return false; | |
1000 | ||
1001 | dev_dbg(info->dev, "Switching %u -> %u lines\n", | |
1002 | mode1.yres, mode2.yres); | |
1003 | *old_var = *new_var; | |
1004 | ||
1005 | return true; | |
1006 | } | |
1007 | ||
1008 | /** | |
1009 | * sh_hdmi_clk_configure() - set HDMI clock frequency and enable the clock | |
c36940e6 GL |
1010 | * @hdmi: driver context |
1011 | * @hdmi_rate: HDMI clock frequency in Hz | |
1012 | * @parent_rate: if != 0 - set parent clock rate for optimal precision | |
1013 | * return: configured positive rate if successful | |
1014 | * 0 if couldn't set the rate, but managed to enable the | |
1015 | * clock, negative error, if couldn't enable the clock | |
afe417c0 | 1016 | */ |
c36940e6 GL |
1017 | static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long hdmi_rate, |
1018 | unsigned long parent_rate) | |
afe417c0 | 1019 | { |
afe417c0 GL |
1020 | int ret; |
1021 | ||
c36940e6 GL |
1022 | if (parent_rate && clk_get_parent(hdmi->hdmi_clk)) { |
1023 | ret = clk_set_rate(clk_get_parent(hdmi->hdmi_clk), parent_rate); | |
afe417c0 | 1024 | if (ret < 0) { |
c36940e6 GL |
1025 | dev_warn(hdmi->dev, "Cannot set parent rate %ld: %d\n", parent_rate, ret); |
1026 | hdmi_rate = clk_round_rate(hdmi->hdmi_clk, hdmi_rate); | |
afe417c0 | 1027 | } else { |
c36940e6 | 1028 | dev_dbg(hdmi->dev, "HDMI set parent frequency %lu\n", parent_rate); |
afe417c0 | 1029 | } |
afe417c0 GL |
1030 | } |
1031 | ||
c36940e6 | 1032 | ret = clk_set_rate(hdmi->hdmi_clk, hdmi_rate); |
afe417c0 | 1033 | if (ret < 0) { |
c36940e6 GL |
1034 | dev_warn(hdmi->dev, "Cannot set rate %ld: %d\n", hdmi_rate, ret); |
1035 | hdmi_rate = 0; | |
1036 | } else { | |
1037 | dev_dbg(hdmi->dev, "HDMI set frequency %lu\n", hdmi_rate); | |
afe417c0 GL |
1038 | } |
1039 | ||
c36940e6 | 1040 | return hdmi_rate; |
afe417c0 GL |
1041 | } |
1042 | ||
6011bdea | 1043 | /* Hotplug interrupt occurred, read EDID */ |
6aa966e6 | 1044 | static void sh_hdmi_edid_work_fn(struct work_struct *work) |
6011bdea GL |
1045 | { |
1046 | struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work); | |
1047 | struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data; | |
1c120deb | 1048 | struct sh_mobile_lcdc_chan *ch; |
afe417c0 | 1049 | int ret; |
6011bdea | 1050 | |
6aa966e6 GL |
1051 | dev_dbg(hdmi->dev, "%s(%p): begin, hotplug status %d\n", __func__, |
1052 | pdata->lcd_dev, hdmi->hp_state); | |
6011bdea GL |
1053 | |
1054 | if (!pdata->lcd_dev) | |
1055 | return; | |
1056 | ||
6de9edd5 GL |
1057 | mutex_lock(&hdmi->mutex); |
1058 | ||
6011bdea | 1059 | if (hdmi->hp_state == HDMI_HOTPLUG_EDID_DONE) { |
c36940e6 GL |
1060 | unsigned long parent_rate = 0, hdmi_rate; |
1061 | ||
6011bdea | 1062 | /* A device has been plugged in */ |
afe417c0 GL |
1063 | pm_runtime_get_sync(hdmi->dev); |
1064 | ||
c36940e6 | 1065 | ret = sh_hdmi_read_edid(hdmi, &hdmi_rate, &parent_rate); |
afe417c0 GL |
1066 | if (ret < 0) |
1067 | goto out; | |
1068 | ||
1069 | /* Reconfigure the clock */ | |
c36940e6 | 1070 | ret = sh_hdmi_clk_configure(hdmi, hdmi_rate, parent_rate); |
afe417c0 GL |
1071 | if (ret < 0) |
1072 | goto out; | |
1073 | ||
6011bdea GL |
1074 | msleep(10); |
1075 | sh_hdmi_configure(hdmi); | |
1076 | /* Switched to another (d) power-save mode */ | |
1077 | msleep(10); | |
1078 | ||
1079 | if (!hdmi->info) | |
6de9edd5 | 1080 | goto out; |
6011bdea | 1081 | |
1c120deb | 1082 | ch = hdmi->info->par; |
6011bdea GL |
1083 | |
1084 | acquire_console_sem(); | |
1085 | ||
1086 | /* HDMI plug in */ | |
afe417c0 GL |
1087 | if (!sh_hdmi_must_reconfigure(hdmi) && |
1088 | hdmi->info->state == FBINFO_STATE_RUNNING) { | |
1089 | /* | |
1090 | * First activation with the default monitor - just turn | |
1091 | * on, if we run a resume here, the logo disappears | |
1092 | */ | |
6de9edd5 | 1093 | if (lock_fb_info(hdmi->info)) { |
6aa966e6 | 1094 | sh_hdmi_display_on(hdmi, hdmi->info); |
6de9edd5 GL |
1095 | unlock_fb_info(hdmi->info); |
1096 | } | |
afe417c0 GL |
1097 | } else { |
1098 | /* New monitor or have to wake up */ | |
6011bdea | 1099 | fb_set_suspend(hdmi->info, 0); |
6de9edd5 | 1100 | } |
6011bdea GL |
1101 | |
1102 | release_console_sem(); | |
1103 | } else { | |
afe417c0 | 1104 | ret = 0; |
6011bdea | 1105 | if (!hdmi->info) |
6de9edd5 | 1106 | goto out; |
6011bdea | 1107 | |
91d63f8a GL |
1108 | hdmi->monspec.modedb_len = 0; |
1109 | fb_destroy_modedb(hdmi->monspec.modedb); | |
1110 | hdmi->monspec.modedb = NULL; | |
1111 | ||
6011bdea GL |
1112 | acquire_console_sem(); |
1113 | ||
1114 | /* HDMI disconnect */ | |
1115 | fb_set_suspend(hdmi->info, 1); | |
1116 | ||
1117 | release_console_sem(); | |
1118 | pm_runtime_put(hdmi->dev); | |
1119 | } | |
1120 | ||
6de9edd5 | 1121 | out: |
afe417c0 GL |
1122 | if (ret < 0) |
1123 | hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED; | |
6de9edd5 GL |
1124 | mutex_unlock(&hdmi->mutex); |
1125 | ||
6aa966e6 | 1126 | dev_dbg(hdmi->dev, "%s(%p): end\n", __func__, pdata->lcd_dev); |
6011bdea GL |
1127 | } |
1128 | ||
6de9edd5 GL |
1129 | static int sh_hdmi_notify(struct notifier_block *nb, |
1130 | unsigned long action, void *data); | |
1131 | ||
1132 | static struct notifier_block sh_hdmi_notifier = { | |
1133 | .notifier_call = sh_hdmi_notify, | |
1134 | }; | |
1135 | ||
1136 | static int sh_hdmi_notify(struct notifier_block *nb, | |
1137 | unsigned long action, void *data) | |
1138 | { | |
1139 | struct fb_event *event = data; | |
1140 | struct fb_info *info = event->info; | |
1141 | struct sh_mobile_lcdc_chan *ch = info->par; | |
1142 | struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg; | |
1143 | struct sh_hdmi *hdmi = board_cfg->board_data; | |
1144 | ||
1145 | if (nb != &sh_hdmi_notifier || !hdmi || hdmi->info != info) | |
1146 | return NOTIFY_DONE; | |
1147 | ||
1148 | switch(action) { | |
1149 | case FB_EVENT_FB_REGISTERED: | |
6aa966e6 | 1150 | /* Unneeded, activation taken care by sh_hdmi_display_on() */ |
6de9edd5 GL |
1151 | break; |
1152 | case FB_EVENT_FB_UNREGISTERED: | |
1153 | /* | |
1154 | * We are called from unregister_framebuffer() with the | |
1155 | * info->lock held. This is bad for us, because we can race with | |
1156 | * the scheduled work, which has to call fb_set_suspend(), which | |
6aa966e6 GL |
1157 | * takes info->lock internally, so, sh_hdmi_edid_work_fn() |
1158 | * cannot take and hold info->lock for the whole function | |
1159 | * duration. Using an additional lock creates a classical AB-BA | |
1160 | * lock up. Therefore, we have to release the info->lock | |
1161 | * temporarily, synchronise with the work queue and re-acquire | |
1162 | * the info->lock. | |
6de9edd5 GL |
1163 | */ |
1164 | unlock_fb_info(hdmi->info); | |
1165 | mutex_lock(&hdmi->mutex); | |
1166 | hdmi->info = NULL; | |
1167 | mutex_unlock(&hdmi->mutex); | |
1168 | lock_fb_info(hdmi->info); | |
1169 | return NOTIFY_OK; | |
1170 | } | |
1171 | return NOTIFY_DONE; | |
6011bdea GL |
1172 | } |
1173 | ||
1174 | static int __init sh_hdmi_probe(struct platform_device *pdev) | |
1175 | { | |
1176 | struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data; | |
1177 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
6de9edd5 | 1178 | struct sh_mobile_lcdc_board_cfg *board_cfg; |
6011bdea GL |
1179 | int irq = platform_get_irq(pdev, 0), ret; |
1180 | struct sh_hdmi *hdmi; | |
1181 | long rate; | |
1182 | ||
1183 | if (!res || !pdata || irq < 0) | |
1184 | return -ENODEV; | |
1185 | ||
1186 | hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL); | |
1187 | if (!hdmi) { | |
1188 | dev_err(&pdev->dev, "Cannot allocate device data\n"); | |
1189 | return -ENOMEM; | |
1190 | } | |
1191 | ||
6de9edd5 | 1192 | mutex_init(&hdmi->mutex); |
1d6be338 | 1193 | |
6011bdea GL |
1194 | hdmi->dev = &pdev->dev; |
1195 | ||
1196 | hdmi->hdmi_clk = clk_get(&pdev->dev, "ick"); | |
1197 | if (IS_ERR(hdmi->hdmi_clk)) { | |
1198 | ret = PTR_ERR(hdmi->hdmi_clk); | |
1199 | dev_err(&pdev->dev, "Unable to get clock: %d\n", ret); | |
1200 | goto egetclk; | |
1201 | } | |
1202 | ||
c36940e6 GL |
1203 | /* An arbitrary relaxed pixclock just to get things started: from standard 480p */ |
1204 | rate = clk_round_rate(hdmi->hdmi_clk, PICOS2KHZ(37037)); | |
1205 | if (rate > 0) | |
1206 | rate = sh_hdmi_clk_configure(hdmi, rate, 0); | |
1207 | ||
6011bdea GL |
1208 | if (rate < 0) { |
1209 | ret = rate; | |
6011bdea GL |
1210 | goto erate; |
1211 | } | |
1212 | ||
c36940e6 GL |
1213 | ret = clk_enable(hdmi->hdmi_clk); |
1214 | if (ret < 0) { | |
1215 | dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret); | |
1216 | goto erate; | |
1217 | } | |
1218 | ||
afe417c0 | 1219 | dev_dbg(&pdev->dev, "Enabled HDMI clock at %luHz\n", rate); |
6011bdea GL |
1220 | |
1221 | if (!request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev))) { | |
1222 | dev_err(&pdev->dev, "HDMI register region already claimed\n"); | |
1223 | ret = -EBUSY; | |
1224 | goto ereqreg; | |
1225 | } | |
1226 | ||
1227 | hdmi->base = ioremap(res->start, resource_size(res)); | |
1228 | if (!hdmi->base) { | |
1229 | dev_err(&pdev->dev, "HDMI register region already claimed\n"); | |
1230 | ret = -ENOMEM; | |
1231 | goto emap; | |
1232 | } | |
1233 | ||
1234 | platform_set_drvdata(pdev, hdmi); | |
1235 | ||
6011bdea | 1236 | /* Set up LCDC callbacks */ |
6de9edd5 GL |
1237 | board_cfg = &pdata->lcd_chan->board_cfg; |
1238 | board_cfg->owner = THIS_MODULE; | |
1239 | board_cfg->board_data = hdmi; | |
6aa966e6 GL |
1240 | board_cfg->display_on = sh_hdmi_display_on; |
1241 | board_cfg->display_off = sh_hdmi_display_off; | |
6011bdea | 1242 | |
6aa966e6 | 1243 | INIT_DELAYED_WORK(&hdmi->edid_work, sh_hdmi_edid_work_fn); |
6011bdea GL |
1244 | |
1245 | pm_runtime_enable(&pdev->dev); | |
1246 | pm_runtime_resume(&pdev->dev); | |
1247 | ||
c36940e6 GL |
1248 | /* Product and revision IDs are 0 in sh-mobile version */ |
1249 | dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n", | |
1250 | hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID)); | |
1251 | ||
6011bdea GL |
1252 | ret = request_irq(irq, sh_hdmi_hotplug, 0, |
1253 | dev_name(&pdev->dev), hdmi); | |
1254 | if (ret < 0) { | |
1255 | dev_err(&pdev->dev, "Unable to request irq: %d\n", ret); | |
1256 | goto ereqirq; | |
1257 | } | |
1258 | ||
b3773301 RK |
1259 | ret = snd_soc_register_codec(&pdev->dev, |
1260 | &soc_codec_dev_sh_hdmi, &sh_hdmi_dai, 1); | |
1261 | if (ret < 0) { | |
1262 | dev_err(&pdev->dev, "codec registration failed\n"); | |
1263 | goto ecodec; | |
1264 | } | |
1265 | ||
6011bdea GL |
1266 | return 0; |
1267 | ||
b3773301 RK |
1268 | ecodec: |
1269 | free_irq(irq, hdmi); | |
6011bdea GL |
1270 | ereqirq: |
1271 | pm_runtime_disable(&pdev->dev); | |
1272 | iounmap(hdmi->base); | |
1273 | emap: | |
1274 | release_mem_region(res->start, resource_size(res)); | |
1275 | ereqreg: | |
1276 | clk_disable(hdmi->hdmi_clk); | |
6011bdea GL |
1277 | erate: |
1278 | clk_put(hdmi->hdmi_clk); | |
1279 | egetclk: | |
6de9edd5 | 1280 | mutex_destroy(&hdmi->mutex); |
6011bdea GL |
1281 | kfree(hdmi); |
1282 | ||
1283 | return ret; | |
1284 | } | |
1285 | ||
1286 | static int __exit sh_hdmi_remove(struct platform_device *pdev) | |
1287 | { | |
1288 | struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data; | |
1289 | struct sh_hdmi *hdmi = platform_get_drvdata(pdev); | |
1290 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
6de9edd5 | 1291 | struct sh_mobile_lcdc_board_cfg *board_cfg = &pdata->lcd_chan->board_cfg; |
6011bdea GL |
1292 | int irq = platform_get_irq(pdev, 0); |
1293 | ||
1d6be338 KM |
1294 | snd_soc_unregister_codec(&pdev->dev); |
1295 | ||
6de9edd5 GL |
1296 | board_cfg->display_on = NULL; |
1297 | board_cfg->display_off = NULL; | |
1298 | board_cfg->board_data = NULL; | |
1299 | board_cfg->owner = NULL; | |
6011bdea | 1300 | |
6de9edd5 | 1301 | /* No new work will be scheduled, wait for running ISR */ |
6011bdea | 1302 | free_irq(irq, hdmi); |
6de9edd5 | 1303 | /* Wait for already scheduled work */ |
6011bdea | 1304 | cancel_delayed_work_sync(&hdmi->edid_work); |
6de9edd5 | 1305 | pm_runtime_disable(&pdev->dev); |
6011bdea GL |
1306 | clk_disable(hdmi->hdmi_clk); |
1307 | clk_put(hdmi->hdmi_clk); | |
1308 | iounmap(hdmi->base); | |
1309 | release_mem_region(res->start, resource_size(res)); | |
6de9edd5 | 1310 | mutex_destroy(&hdmi->mutex); |
6011bdea GL |
1311 | kfree(hdmi); |
1312 | ||
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static struct platform_driver sh_hdmi_driver = { | |
1317 | .remove = __exit_p(sh_hdmi_remove), | |
1318 | .driver = { | |
1319 | .name = "sh-mobile-hdmi", | |
1320 | }, | |
1321 | }; | |
1322 | ||
1323 | static int __init sh_hdmi_init(void) | |
1324 | { | |
1325 | return platform_driver_probe(&sh_hdmi_driver, sh_hdmi_probe); | |
1326 | } | |
1327 | module_init(sh_hdmi_init); | |
1328 | ||
1329 | static void __exit sh_hdmi_exit(void) | |
1330 | { | |
1331 | platform_driver_unregister(&sh_hdmi_driver); | |
1332 | } | |
1333 | module_exit(sh_hdmi_exit); | |
1334 | ||
1335 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); | |
1336 | MODULE_DESCRIPTION("SuperH / ARM-shmobile HDMI driver"); | |
1337 | MODULE_LICENSE("GPL v2"); |