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>
25 #include <sound/soc.h>
26 #include <sound/soc-dapm.h>
27 #include <sound/initval.h>
28
29 #include <video/sh_mobile_hdmi.h>
30 #include <video/sh_mobile_lcdc.h>
31
32 #include "sh_mobile_lcdcfb.h"
33
34 /* HDMI Core Control Register (HTOP0) */
35 #define HDMI_SYSTEM_CTRL 0x00 /* System control */
36 #define HDMI_L_R_DATA_SWAP_CTRL_RPKT 0x01 /* L/R data swap control,
37 bits 19..16 of 20-bit N for Audio Clock Regeneration packet */
38 #define HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8 0x02 /* bits 15..8 of 20-bit N for Audio Clock Regeneration packet */
39 #define HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0 0x03 /* bits 7..0 of 20-bit N for Audio Clock Regeneration packet */
40 #define HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS 0x04 /* SPDIF audio sampling frequency,
41 bits 19..16 of Internal CTS */
42 #define HDMI_INTERNAL_CTS_15_8 0x05 /* bits 15..8 of Internal CTS */
43 #define HDMI_INTERNAL_CTS_7_0 0x06 /* bits 7..0 of Internal CTS */
44 #define HDMI_EXTERNAL_CTS_19_16 0x07 /* External CTS */
45 #define HDMI_EXTERNAL_CTS_15_8 0x08 /* External CTS */
46 #define HDMI_EXTERNAL_CTS_7_0 0x09 /* External CTS */
47 #define HDMI_AUDIO_SETTING_1 0x0A /* Audio setting.1 */
48 #define HDMI_AUDIO_SETTING_2 0x0B /* Audio setting.2 */
49 #define HDMI_I2S_AUDIO_SET 0x0C /* I2S audio setting */
50 #define HDMI_DSD_AUDIO_SET 0x0D /* DSD audio setting */
51 #define HDMI_DEBUG_MONITOR_1 0x0E /* Debug monitor.1 */
52 #define HDMI_DEBUG_MONITOR_2 0x0F /* Debug monitor.2 */
53 #define HDMI_I2S_INPUT_PIN_SWAP 0x10 /* I2S input pin swap */
54 #define HDMI_AUDIO_STATUS_BITS_SETTING_1 0x11 /* Audio status bits setting.1 */
55 #define HDMI_AUDIO_STATUS_BITS_SETTING_2 0x12 /* Audio status bits setting.2 */
56 #define HDMI_CATEGORY_CODE 0x13 /* Category code */
57 #define HDMI_SOURCE_NUM_AUDIO_WORD_LEN 0x14 /* Source number/Audio word length */
58 #define HDMI_AUDIO_VIDEO_SETTING_1 0x15 /* Audio/Video setting.1 */
59 #define HDMI_VIDEO_SETTING_1 0x16 /* Video setting.1 */
60 #define HDMI_DEEP_COLOR_MODES 0x17 /* Deep Color Modes */
61
62 /* 12 16- and 10-bit Color space conversion parameters: 0x18..0x2f */
63 #define HDMI_COLOR_SPACE_CONVERSION_PARAMETERS 0x18
64
65 #define HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS 0x30 /* External video parameter settings */
66 #define HDMI_EXTERNAL_H_TOTAL_7_0 0x31 /* External horizontal total (LSB) */
67 #define HDMI_EXTERNAL_H_TOTAL_11_8 0x32 /* External horizontal total (MSB) */
68 #define HDMI_EXTERNAL_H_BLANK_7_0 0x33 /* External horizontal blank (LSB) */
69 #define HDMI_EXTERNAL_H_BLANK_9_8 0x34 /* External horizontal blank (MSB) */
70 #define HDMI_EXTERNAL_H_DELAY_7_0 0x35 /* External horizontal delay (LSB) */
71 #define HDMI_EXTERNAL_H_DELAY_9_8 0x36 /* External horizontal delay (MSB) */
72 #define HDMI_EXTERNAL_H_DURATION_7_0 0x37 /* External horizontal duration (LSB) */
73 #define HDMI_EXTERNAL_H_DURATION_9_8 0x38 /* External horizontal duration (MSB) */
74 #define HDMI_EXTERNAL_V_TOTAL_7_0 0x39 /* External vertical total (LSB) */
75 #define HDMI_EXTERNAL_V_TOTAL_9_8 0x3A /* External vertical total (MSB) */
76 #define HDMI_AUDIO_VIDEO_SETTING_2 0x3B /* Audio/Video setting.2 */
77 #define HDMI_EXTERNAL_V_BLANK 0x3D /* External vertical blank */
78 #define HDMI_EXTERNAL_V_DELAY 0x3E /* External vertical delay */
79 #define HDMI_EXTERNAL_V_DURATION 0x3F /* External vertical duration */
80 #define HDMI_CTRL_PKT_MANUAL_SEND_CONTROL 0x40 /* Control packet manual send control */
81 #define HDMI_CTRL_PKT_AUTO_SEND 0x41 /* Control packet auto send with VSYNC control */
82 #define HDMI_AUTO_CHECKSUM_OPTION 0x42 /* Auto checksum option */
83 #define HDMI_VIDEO_SETTING_2 0x45 /* Video setting.2 */
84 #define HDMI_OUTPUT_OPTION 0x46 /* Output option */
85 #define HDMI_SLIPHDMIT_PARAM_OPTION 0x51 /* SLIPHDMIT parameter option */
86 #define HDMI_HSYNC_PMENT_AT_EMB_7_0 0x52 /* HSYNC placement at embedded sync (LSB) */
87 #define HDMI_HSYNC_PMENT_AT_EMB_15_8 0x53 /* HSYNC placement at embedded sync (MSB) */
88 #define HDMI_VSYNC_PMENT_AT_EMB_7_0 0x54 /* VSYNC placement at embedded sync (LSB) */
89 #define HDMI_VSYNC_PMENT_AT_EMB_14_8 0x55 /* VSYNC placement at embedded sync (MSB) */
90 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_1 0x56 /* SLIPHDMIT parameter settings.1 */
91 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_2 0x57 /* SLIPHDMIT parameter settings.2 */
92 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_3 0x58 /* SLIPHDMIT parameter settings.3 */
93 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_5 0x59 /* SLIPHDMIT parameter settings.5 */
94 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_6 0x5A /* SLIPHDMIT parameter settings.6 */
95 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_7 0x5B /* SLIPHDMIT parameter settings.7 */
96 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_8 0x5C /* SLIPHDMIT parameter settings.8 */
97 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_9 0x5D /* SLIPHDMIT parameter settings.9 */
98 #define HDMI_SLIPHDMIT_PARAM_SETTINGS_10 0x5E /* SLIPHDMIT parameter settings.10 */
99 #define HDMI_CTRL_PKT_BUF_INDEX 0x5F /* Control packet buffer index */
100 #define HDMI_CTRL_PKT_BUF_ACCESS_HB0 0x60 /* Control packet data buffer access window - HB0 */
101 #define HDMI_CTRL_PKT_BUF_ACCESS_HB1 0x61 /* Control packet data buffer access window - HB1 */
102 #define HDMI_CTRL_PKT_BUF_ACCESS_HB2 0x62 /* Control packet data buffer access window - HB2 */
103 #define HDMI_CTRL_PKT_BUF_ACCESS_PB0 0x63 /* Control packet data buffer access window - PB0 */
104 #define HDMI_CTRL_PKT_BUF_ACCESS_PB1 0x64 /* Control packet data buffer access window - PB1 */
105 #define HDMI_CTRL_PKT_BUF_ACCESS_PB2 0x65 /* Control packet data buffer access window - PB2 */
106 #define HDMI_CTRL_PKT_BUF_ACCESS_PB3 0x66 /* Control packet data buffer access window - PB3 */
107 #define HDMI_CTRL_PKT_BUF_ACCESS_PB4 0x67 /* Control packet data buffer access window - PB4 */
108 #define HDMI_CTRL_PKT_BUF_ACCESS_PB5 0x68 /* Control packet data buffer access window - PB5 */
109 #define HDMI_CTRL_PKT_BUF_ACCESS_PB6 0x69 /* Control packet data buffer access window - PB6 */
110 #define HDMI_CTRL_PKT_BUF_ACCESS_PB7 0x6A /* Control packet data buffer access window - PB7 */
111 #define HDMI_CTRL_PKT_BUF_ACCESS_PB8 0x6B /* Control packet data buffer access window - PB8 */
112 #define HDMI_CTRL_PKT_BUF_ACCESS_PB9 0x6C /* Control packet data buffer access window - PB9 */
113 #define HDMI_CTRL_PKT_BUF_ACCESS_PB10 0x6D /* Control packet data buffer access window - PB10 */
114 #define HDMI_CTRL_PKT_BUF_ACCESS_PB11 0x6E /* Control packet data buffer access window - PB11 */
115 #define HDMI_CTRL_PKT_BUF_ACCESS_PB12 0x6F /* Control packet data buffer access window - PB12 */
116 #define HDMI_CTRL_PKT_BUF_ACCESS_PB13 0x70 /* Control packet data buffer access window - PB13 */
117 #define HDMI_CTRL_PKT_BUF_ACCESS_PB14 0x71 /* Control packet data buffer access window - PB14 */
118 #define HDMI_CTRL_PKT_BUF_ACCESS_PB15 0x72 /* Control packet data buffer access window - PB15 */
119 #define HDMI_CTRL_PKT_BUF_ACCESS_PB16 0x73 /* Control packet data buffer access window - PB16 */
120 #define HDMI_CTRL_PKT_BUF_ACCESS_PB17 0x74 /* Control packet data buffer access window - PB17 */
121 #define HDMI_CTRL_PKT_BUF_ACCESS_PB18 0x75 /* Control packet data buffer access window - PB18 */
122 #define HDMI_CTRL_PKT_BUF_ACCESS_PB19 0x76 /* Control packet data buffer access window - PB19 */
123 #define HDMI_CTRL_PKT_BUF_ACCESS_PB20 0x77 /* Control packet data buffer access window - PB20 */
124 #define HDMI_CTRL_PKT_BUF_ACCESS_PB21 0x78 /* Control packet data buffer access window - PB21 */
125 #define HDMI_CTRL_PKT_BUF_ACCESS_PB22 0x79 /* Control packet data buffer access window - PB22 */
126 #define HDMI_CTRL_PKT_BUF_ACCESS_PB23 0x7A /* Control packet data buffer access window - PB23 */
127 #define HDMI_CTRL_PKT_BUF_ACCESS_PB24 0x7B /* Control packet data buffer access window - PB24 */
128 #define HDMI_CTRL_PKT_BUF_ACCESS_PB25 0x7C /* Control packet data buffer access window - PB25 */
129 #define HDMI_CTRL_PKT_BUF_ACCESS_PB26 0x7D /* Control packet data buffer access window - PB26 */
130 #define HDMI_CTRL_PKT_BUF_ACCESS_PB27 0x7E /* Control packet data buffer access window - PB27 */
131 #define HDMI_EDID_KSV_FIFO_ACCESS_WINDOW 0x80 /* EDID/KSV FIFO access window */
132 #define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_7_0 0x81 /* DDC bus access frequency control (LSB) */
133 #define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_15_8 0x82 /* DDC bus access frequency control (MSB) */
134 #define HDMI_INTERRUPT_MASK_1 0x92 /* Interrupt mask.1 */
135 #define HDMI_INTERRUPT_MASK_2 0x93 /* Interrupt mask.2 */
136 #define HDMI_INTERRUPT_STATUS_1 0x94 /* Interrupt status.1 */
137 #define HDMI_INTERRUPT_STATUS_2 0x95 /* Interrupt status.2 */
138 #define HDMI_INTERRUPT_MASK_3 0x96 /* Interrupt mask.3 */
139 #define HDMI_INTERRUPT_MASK_4 0x97 /* Interrupt mask.4 */
140 #define HDMI_INTERRUPT_STATUS_3 0x98 /* Interrupt status.3 */
141 #define HDMI_INTERRUPT_STATUS_4 0x99 /* Interrupt status.4 */
142 #define HDMI_SOFTWARE_HDCP_CONTROL_1 0x9A /* Software HDCP control.1 */
143 #define HDMI_FRAME_COUNTER 0x9C /* Frame counter */
144 #define HDMI_FRAME_COUNTER_FOR_RI_CHECK 0x9D /* Frame counter for Ri check */
145 #define HDMI_HDCP_CONTROL 0xAF /* HDCP control */
146 #define HDMI_RI_FRAME_COUNT_REGISTER 0xB2 /* Ri frame count register */
147 #define HDMI_DDC_BUS_CONTROL 0xB7 /* DDC bus control */
148 #define HDMI_HDCP_STATUS 0xB8 /* HDCP status */
149 #define HDMI_SHA0 0xB9 /* sha0 */
150 #define HDMI_SHA1 0xBA /* sha1 */
151 #define HDMI_SHA2 0xBB /* sha2 */
152 #define HDMI_SHA3 0xBC /* sha3 */
153 #define HDMI_SHA4 0xBD /* sha4 */
154 #define HDMI_BCAPS_READ 0xBE /* BCAPS read / debug */
155 #define HDMI_AKSV_BKSV_7_0_MONITOR 0xBF /* AKSV/BKSV[7:0] monitor */
156 #define HDMI_AKSV_BKSV_15_8_MONITOR 0xC0 /* AKSV/BKSV[15:8] monitor */
157 #define HDMI_AKSV_BKSV_23_16_MONITOR 0xC1 /* AKSV/BKSV[23:16] monitor */
158 #define HDMI_AKSV_BKSV_31_24_MONITOR 0xC2 /* AKSV/BKSV[31:24] monitor */
159 #define HDMI_AKSV_BKSV_39_32_MONITOR 0xC3 /* AKSV/BKSV[39:32] monitor */
160 #define HDMI_EDID_SEGMENT_POINTER 0xC4 /* EDID segment pointer */
161 #define HDMI_EDID_WORD_ADDRESS 0xC5 /* EDID word address */
162 #define HDMI_EDID_DATA_FIFO_ADDRESS 0xC6 /* EDID data FIFO address */
163 #define HDMI_NUM_OF_HDMI_DEVICES 0xC7 /* Number of HDMI devices */
164 #define HDMI_HDCP_ERROR_CODE 0xC8 /* HDCP error code */
165 #define HDMI_100MS_TIMER_SET 0xC9 /* 100ms timer setting */
166 #define HDMI_5SEC_TIMER_SET 0xCA /* 5sec timer setting */
167 #define HDMI_RI_READ_COUNT 0xCB /* Ri read count */
168 #define HDMI_AN_SEED 0xCC /* An seed */
169 #define HDMI_MAX_NUM_OF_RCIVRS_ALLOWED 0xCD /* Maximum number of receivers allowed */
170 #define HDMI_HDCP_MEMORY_ACCESS_CONTROL_1 0xCE /* HDCP memory access control.1 */
171 #define HDMI_HDCP_MEMORY_ACCESS_CONTROL_2 0xCF /* HDCP memory access control.2 */
172 #define HDMI_HDCP_CONTROL_2 0xD0 /* HDCP Control 2 */
173 #define HDMI_HDCP_KEY_MEMORY_CONTROL 0xD2 /* HDCP Key Memory Control */
174 #define HDMI_COLOR_SPACE_CONV_CONFIG_1 0xD3 /* Color space conversion configuration.1 */
175 #define HDMI_VIDEO_SETTING_3 0xD4 /* Video setting.3 */
176 #define HDMI_RI_7_0 0xD5 /* Ri[7:0] */
177 #define HDMI_RI_15_8 0xD6 /* Ri[15:8] */
178 #define HDMI_PJ 0xD7 /* Pj */
179 #define HDMI_SHA_RD 0xD8 /* sha_rd */
180 #define HDMI_RI_7_0_SAVED 0xD9 /* Ri[7:0] saved */
181 #define HDMI_RI_15_8_SAVED 0xDA /* Ri[15:8] saved */
182 #define HDMI_PJ_SAVED 0xDB /* Pj saved */
183 #define HDMI_NUM_OF_DEVICES 0xDC /* Number of devices */
184 #define HDMI_HOT_PLUG_MSENS_STATUS 0xDF /* Hot plug/MSENS status */
185 #define HDMI_BCAPS_WRITE 0xE0 /* bcaps */
186 #define HDMI_BSTAT_7_0 0xE1 /* bstat[7:0] */
187 #define HDMI_BSTAT_15_8 0xE2 /* bstat[15:8] */
188 #define HDMI_BKSV_7_0 0xE3 /* bksv[7:0] */
189 #define HDMI_BKSV_15_8 0xE4 /* bksv[15:8] */
190 #define HDMI_BKSV_23_16 0xE5 /* bksv[23:16] */
191 #define HDMI_BKSV_31_24 0xE6 /* bksv[31:24] */
192 #define HDMI_BKSV_39_32 0xE7 /* bksv[39:32] */
193 #define HDMI_AN_7_0 0xE8 /* An[7:0] */
194 #define HDMI_AN_15_8 0xE9 /* An [15:8] */
195 #define HDMI_AN_23_16 0xEA /* An [23:16] */
196 #define HDMI_AN_31_24 0xEB /* An [31:24] */
197 #define HDMI_AN_39_32 0xEC /* An [39:32] */
198 #define HDMI_AN_47_40 0xED /* An [47:40] */
199 #define HDMI_AN_55_48 0xEE /* An [55:48] */
200 #define HDMI_AN_63_56 0xEF /* An [63:56] */
201 #define HDMI_PRODUCT_ID 0xF0 /* Product ID */
202 #define HDMI_REVISION_ID 0xF1 /* Revision ID */
203 #define HDMI_TEST_MODE 0xFE /* Test mode */
204
205 /* HDMI Control Register (HTOP1) */
206 #define HDMI_HTOP1_TEST_MODE 0x0000 /* Test mode */
207 #define HDMI_HTOP1_VIDEO_INPUT 0x0008 /* VideoInput */
208 #define HDMI_HTOP1_CORE_RSTN 0x000C /* CoreResetn */
209 #define HDMI_HTOP1_PLLBW 0x0018 /* PLLBW */
210 #define HDMI_HTOP1_CLK_TO_PHY 0x001C /* Clk to Phy */
211 #define HDMI_HTOP1_VIDEO_INPUT2 0x0020 /* VideoInput2 */
212 #define HDMI_HTOP1_TISEMP0_1 0x0024 /* tisemp0-1 */
213 #define HDMI_HTOP1_TISEMP2_C 0x0028 /* tisemp2-c */
214 #define HDMI_HTOP1_TISIDRV 0x002C /* tisidrv */
215 #define HDMI_HTOP1_TISEN 0x0034 /* tisen */
216 #define HDMI_HTOP1_TISDREN 0x0038 /* tisdren */
217 #define HDMI_HTOP1_CISRANGE 0x003C /* cisrange */
218 #define HDMI_HTOP1_ENABLE_SELECTOR 0x0040 /* Enable Selector */
219 #define HDMI_HTOP1_MACRO_RESET 0x0044 /* Macro reset */
220 #define HDMI_HTOP1_PLL_CALIBRATION 0x0048 /* PLL calibration */
221 #define HDMI_HTOP1_RE_CALIBRATION 0x004C /* Re-calibration */
222 #define HDMI_HTOP1_CURRENT 0x0050 /* Current */
223 #define HDMI_HTOP1_PLL_LOCK_DETECT 0x0054 /* PLL lock detect */
224 #define HDMI_HTOP1_PHY_TEST_MODE 0x0058 /* PHY Test Mode */
225 #define HDMI_HTOP1_CLK_SET 0x0080 /* Clock Set */
226 #define HDMI_HTOP1_DDC_FAIL_SAFE 0x0084 /* DDC fail safe */
227 #define HDMI_HTOP1_PRBS 0x0088 /* PRBS */
228 #define HDMI_HTOP1_EDID_AINC_CONTROL 0x008C /* EDID ainc Control */
229 #define HDMI_HTOP1_HTOP_DCL_MODE 0x00FC /* Deep Coloer Mode */
230 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF0 0x0100 /* Deep Color:FRC COEF0 */
231 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF1 0x0104 /* Deep Color:FRC COEF1 */
232 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF2 0x0108 /* Deep Color:FRC COEF2 */
233 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF3 0x010C /* Deep Color:FRC COEF3 */
234 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF0_C 0x0110 /* Deep Color:FRC COEF0C */
235 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF1_C 0x0114 /* Deep Color:FRC COEF1C */
236 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF2_C 0x0118 /* Deep Color:FRC COEF2C */
237 #define HDMI_HTOP1_HTOP_DCL_FRC_COEF3_C 0x011C /* Deep Color:FRC COEF3C */
238 #define HDMI_HTOP1_HTOP_DCL_FRC_MODE 0x0120 /* Deep Color:FRC Mode */
239 #define HDMI_HTOP1_HTOP_DCL_RECT_START1 0x0124 /* Deep Color:Rect Start1 */
240 #define HDMI_HTOP1_HTOP_DCL_RECT_SIZE1 0x0128 /* Deep Color:Rect Size1 */
241 #define HDMI_HTOP1_HTOP_DCL_RECT_START2 0x012C /* Deep Color:Rect Start2 */
242 #define HDMI_HTOP1_HTOP_DCL_RECT_SIZE2 0x0130 /* Deep Color:Rect Size2 */
243 #define HDMI_HTOP1_HTOP_DCL_RECT_START3 0x0134 /* Deep Color:Rect Start3 */
244 #define HDMI_HTOP1_HTOP_DCL_RECT_SIZE3 0x0138 /* Deep Color:Rect Size3 */
245 #define HDMI_HTOP1_HTOP_DCL_RECT_START4 0x013C /* Deep Color:Rect Start4 */
246 #define HDMI_HTOP1_HTOP_DCL_RECT_SIZE4 0x0140 /* Deep Color:Rect Size4 */
247 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y1_1 0x0144 /* Deep Color:Fil Para Y1_1 */
248 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y1_2 0x0148 /* Deep Color:Fil Para Y1_2 */
249 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB1_1 0x014C /* Deep Color:Fil Para CB1_1 */
250 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB1_2 0x0150 /* Deep Color:Fil Para CB1_2 */
251 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR1_1 0x0154 /* Deep Color:Fil Para CR1_1 */
252 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR1_2 0x0158 /* Deep Color:Fil Para CR1_2 */
253 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y2_1 0x015C /* Deep Color:Fil Para Y2_1 */
254 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y2_2 0x0160 /* Deep Color:Fil Para Y2_2 */
255 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB2_1 0x0164 /* Deep Color:Fil Para CB2_1 */
256 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB2_2 0x0168 /* Deep Color:Fil Para CB2_2 */
257 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR2_1 0x016C /* Deep Color:Fil Para CR2_1 */
258 #define HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR2_2 0x0170 /* Deep Color:Fil Para CR2_2 */
259 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_Y1 0x0174 /* Deep Color:Cor Para Y1 */
260 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_CB1 0x0178 /* Deep Color:Cor Para CB1 */
261 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_CR1 0x017C /* Deep Color:Cor Para CR1 */
262 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_Y2 0x0180 /* Deep Color:Cor Para Y2 */
263 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_CB2 0x0184 /* Deep Color:Cor Para CB2 */
264 #define HDMI_HTOP1_HTOP_DCL_COR_PARA_CR2 0x0188 /* Deep Color:Cor Para CR2 */
265 #define HDMI_HTOP1_EDID_DATA_READ 0x0200 /* EDID Data Read 128Byte:0x03FC */
266
267 enum hotplug_state {
268 HDMI_HOTPLUG_DISCONNECTED,
269 HDMI_HOTPLUG_CONNECTED,
270 HDMI_HOTPLUG_EDID_DONE,
271 };
272
273 struct sh_hdmi {
274 struct sh_mobile_lcdc_entity entity;
275
276 void __iomem *base;
277 void __iomem *htop1;
278 enum hotplug_state hp_state; /* hot-plug status */
279 u8 preprogrammed_vic; /* use a pre-programmed VIC or
280 the external mode */
281 u8 edid_block_addr;
282 u8 edid_segment_nr;
283 u8 edid_blocks;
284 struct clk *hdmi_clk;
285 struct device *dev;
286 struct delayed_work edid_work;
287 struct fb_videomode mode;
288 struct fb_monspecs monspec;
289
290 /* register access functions */
291 void (*write)(struct sh_hdmi *hdmi, u8 data, u8 reg);
292 u8 (*read)(struct sh_hdmi *hdmi, u8 reg);
293 };
294
295 #define entity_to_sh_hdmi(e) container_of(e, struct sh_hdmi, entity)
296
__hdmi_write8(struct sh_hdmi * hdmi,u8 data,u8 reg)297 static void __hdmi_write8(struct sh_hdmi *hdmi, u8 data, u8 reg)
298 {
299 iowrite8(data, hdmi->base + reg);
300 }
301
__hdmi_read8(struct sh_hdmi * hdmi,u8 reg)302 static u8 __hdmi_read8(struct sh_hdmi *hdmi, u8 reg)
303 {
304 return ioread8(hdmi->base + reg);
305 }
306
__hdmi_write32(struct sh_hdmi * hdmi,u8 data,u8 reg)307 static void __hdmi_write32(struct sh_hdmi *hdmi, u8 data, u8 reg)
308 {
309 iowrite32((u32)data, hdmi->base + (reg * 4));
310 udelay(100);
311 }
312
__hdmi_read32(struct sh_hdmi * hdmi,u8 reg)313 static u8 __hdmi_read32(struct sh_hdmi *hdmi, u8 reg)
314 {
315 return (u8)ioread32(hdmi->base + (reg * 4));
316 }
317
hdmi_write(struct sh_hdmi * hdmi,u8 data,u8 reg)318 static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg)
319 {
320 hdmi->write(hdmi, data, reg);
321 }
322
hdmi_read(struct sh_hdmi * hdmi,u8 reg)323 static u8 hdmi_read(struct sh_hdmi *hdmi, u8 reg)
324 {
325 return hdmi->read(hdmi, reg);
326 }
327
hdmi_bit_set(struct sh_hdmi * hdmi,u8 mask,u8 data,u8 reg)328 static void hdmi_bit_set(struct sh_hdmi *hdmi, u8 mask, u8 data, u8 reg)
329 {
330 u8 val = hdmi_read(hdmi, reg);
331
332 val &= ~mask;
333 val |= (data & mask);
334
335 hdmi_write(hdmi, val, reg);
336 }
337
hdmi_htop1_write(struct sh_hdmi * hdmi,u32 data,u32 reg)338 static void hdmi_htop1_write(struct sh_hdmi *hdmi, u32 data, u32 reg)
339 {
340 iowrite32(data, hdmi->htop1 + reg);
341 udelay(100);
342 }
343
hdmi_htop1_read(struct sh_hdmi * hdmi,u32 reg)344 static u32 hdmi_htop1_read(struct sh_hdmi *hdmi, u32 reg)
345 {
346 return ioread32(hdmi->htop1 + reg);
347 }
348
349 /*
350 * HDMI sound
351 */
sh_hdmi_snd_read(struct snd_soc_codec * codec,unsigned int reg)352 static unsigned int sh_hdmi_snd_read(struct snd_soc_codec *codec,
353 unsigned int reg)
354 {
355 struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec);
356
357 return hdmi_read(hdmi, reg);
358 }
359
sh_hdmi_snd_write(struct snd_soc_codec * codec,unsigned int reg,unsigned int value)360 static int sh_hdmi_snd_write(struct snd_soc_codec *codec,
361 unsigned int reg,
362 unsigned int value)
363 {
364 struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec);
365
366 hdmi_write(hdmi, value, reg);
367 return 0;
368 }
369
370 static struct snd_soc_dai_driver sh_hdmi_dai = {
371 .name = "sh_mobile_hdmi-hifi",
372 .playback = {
373 .stream_name = "Playback",
374 .channels_min = 2,
375 .channels_max = 8,
376 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
377 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
378 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
379 SNDRV_PCM_RATE_192000,
380 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
381 },
382 };
383
sh_hdmi_snd_probe(struct snd_soc_codec * codec)384 static int sh_hdmi_snd_probe(struct snd_soc_codec *codec)
385 {
386 dev_info(codec->dev, "SH Mobile HDMI Audio Codec");
387
388 return 0;
389 }
390
391 static struct snd_soc_codec_driver soc_codec_dev_sh_hdmi = {
392 .probe = sh_hdmi_snd_probe,
393 .read = sh_hdmi_snd_read,
394 .write = sh_hdmi_snd_write,
395 };
396
397 /*
398 * HDMI video
399 */
400
401 /* External video parameter settings */
sh_hdmi_external_video_param(struct sh_hdmi * hdmi)402 static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
403 {
404 struct fb_videomode *mode = &hdmi->mode;
405 u16 htotal, hblank, hdelay, vtotal, vblank, vdelay, voffset;
406 u8 sync = 0;
407
408 htotal = mode->xres + mode->right_margin + mode->left_margin
409 + mode->hsync_len;
410 hdelay = mode->hsync_len + mode->left_margin;
411 hblank = mode->right_margin + hdelay;
412
413 /*
414 * Vertical timing looks a bit different in Figure 18,
415 * but let's try the same first by setting offset = 0
416 */
417 vtotal = mode->yres + mode->upper_margin + mode->lower_margin
418 + mode->vsync_len;
419 vdelay = mode->vsync_len + mode->upper_margin;
420 vblank = mode->lower_margin + vdelay;
421 voffset = min(mode->upper_margin / 2, 6U);
422
423 /*
424 * [3]: VSYNC polarity: Positive
425 * [2]: HSYNC polarity: Positive
426 * [1]: Interlace/Progressive: Progressive
427 * [0]: External video settings enable: used.
428 */
429 if (mode->sync & FB_SYNC_HOR_HIGH_ACT)
430 sync |= 4;
431 if (mode->sync & FB_SYNC_VERT_HIGH_ACT)
432 sync |= 8;
433
434 dev_dbg(hdmi->dev, "H: %u, %u, %u, %u; V: %u, %u, %u, %u; sync 0x%x\n",
435 htotal, hblank, hdelay, mode->hsync_len,
436 vtotal, vblank, vdelay, mode->vsync_len, sync);
437
438 hdmi_write(hdmi, sync | (voffset << 4), HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
439
440 hdmi_write(hdmi, htotal, HDMI_EXTERNAL_H_TOTAL_7_0);
441 hdmi_write(hdmi, htotal >> 8, HDMI_EXTERNAL_H_TOTAL_11_8);
442
443 hdmi_write(hdmi, hblank, HDMI_EXTERNAL_H_BLANK_7_0);
444 hdmi_write(hdmi, hblank >> 8, HDMI_EXTERNAL_H_BLANK_9_8);
445
446 hdmi_write(hdmi, hdelay, HDMI_EXTERNAL_H_DELAY_7_0);
447 hdmi_write(hdmi, hdelay >> 8, HDMI_EXTERNAL_H_DELAY_9_8);
448
449 hdmi_write(hdmi, mode->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0);
450 hdmi_write(hdmi, mode->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8);
451
452 hdmi_write(hdmi, vtotal, HDMI_EXTERNAL_V_TOTAL_7_0);
453 hdmi_write(hdmi, vtotal >> 8, HDMI_EXTERNAL_V_TOTAL_9_8);
454
455 hdmi_write(hdmi, vblank, HDMI_EXTERNAL_V_BLANK);
456
457 hdmi_write(hdmi, vdelay, HDMI_EXTERNAL_V_DELAY);
458
459 hdmi_write(hdmi, mode->vsync_len, HDMI_EXTERNAL_V_DURATION);
460
461 /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */
462 if (!hdmi->preprogrammed_vic)
463 hdmi_write(hdmi, sync | 1 | (voffset << 4),
464 HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
465 }
466
467 /**
468 * sh_hdmi_video_config()
469 */
sh_hdmi_video_config(struct sh_hdmi * hdmi)470 static void sh_hdmi_video_config(struct sh_hdmi *hdmi)
471 {
472 /*
473 * [7:4]: Audio sampling frequency: 48kHz
474 * [3:1]: Input video format: RGB and YCbCr 4:4:4 (Y on Green)
475 * [0]: Internal/External DE select: internal
476 */
477 hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1);
478
479 /*
480 * [7:6]: Video output format: RGB 4:4:4
481 * [5:4]: Input video data width: 8 bit
482 * [3:1]: EAV/SAV location: channel 1
483 * [0]: Video input color space: RGB
484 */
485 hdmi_write(hdmi, 0x34, HDMI_VIDEO_SETTING_1);
486
487 /*
488 * [7:6]: Together with bit [6] of HDMI_AUDIO_VIDEO_SETTING_2, which is
489 * left at 0 by default, this configures 24bpp and sets the Color Depth
490 * (CD) field in the General Control Packet
491 */
492 hdmi_write(hdmi, 0x20, HDMI_DEEP_COLOR_MODES);
493 }
494
495 /**
496 * sh_hdmi_audio_config()
497 */
sh_hdmi_audio_config(struct sh_hdmi * hdmi)498 static void sh_hdmi_audio_config(struct sh_hdmi *hdmi)
499 {
500 u8 data;
501 struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
502
503 /*
504 * [7:4] L/R data swap control
505 * [3:0] appropriate N[19:16]
506 */
507 hdmi_write(hdmi, 0x00, HDMI_L_R_DATA_SWAP_CTRL_RPKT);
508 /* appropriate N[15:8] */
509 hdmi_write(hdmi, 0x18, HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8);
510 /* appropriate N[7:0] */
511 hdmi_write(hdmi, 0x00, HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0);
512
513 /* [7:4] 48 kHz SPDIF not used */
514 hdmi_write(hdmi, 0x20, HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS);
515
516 /*
517 * [6:5] set required down sampling rate if required
518 * [4:3] set required audio source
519 */
520 switch (pdata->flags & HDMI_SND_SRC_MASK) {
521 default:
522 /* fall through */
523 case HDMI_SND_SRC_I2S:
524 data = 0x0 << 3;
525 break;
526 case HDMI_SND_SRC_SPDIF:
527 data = 0x1 << 3;
528 break;
529 case HDMI_SND_SRC_DSD:
530 data = 0x2 << 3;
531 break;
532 case HDMI_SND_SRC_HBR:
533 data = 0x3 << 3;
534 break;
535 }
536 hdmi_write(hdmi, data, HDMI_AUDIO_SETTING_1);
537
538 /* [3:0] set sending channel number for channel status */
539 hdmi_write(hdmi, 0x40, HDMI_AUDIO_SETTING_2);
540
541 /*
542 * [5:2] set valid I2S source input pin
543 * [1:0] set input I2S source mode
544 */
545 hdmi_write(hdmi, 0x04, HDMI_I2S_AUDIO_SET);
546
547 /* [7:4] set valid DSD source input pin */
548 hdmi_write(hdmi, 0x00, HDMI_DSD_AUDIO_SET);
549
550 /* [7:0] set appropriate I2S input pin swap settings if required */
551 hdmi_write(hdmi, 0x00, HDMI_I2S_INPUT_PIN_SWAP);
552
553 /*
554 * [7] set validity bit for channel status
555 * [3:0] set original sample frequency for channel status
556 */
557 hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_1);
558
559 /*
560 * [7] set value for channel status
561 * [6] set value for channel status
562 * [5] set copyright bit for channel status
563 * [4:2] set additional information for channel status
564 * [1:0] set clock accuracy for channel status
565 */
566 hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_2);
567
568 /* [7:0] set category code for channel status */
569 hdmi_write(hdmi, 0x00, HDMI_CATEGORY_CODE);
570
571 /*
572 * [7:4] set source number for channel status
573 * [3:0] set word length for channel status
574 */
575 hdmi_write(hdmi, 0x00, HDMI_SOURCE_NUM_AUDIO_WORD_LEN);
576
577 /* [7:4] set sample frequency for channel status */
578 hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1);
579 }
580
581 /**
582 * sh_hdmi_phy_config() - configure the HDMI PHY for the used video mode
583 */
sh_hdmi_phy_config(struct sh_hdmi * hdmi)584 static void sh_hdmi_phy_config(struct sh_hdmi *hdmi)
585 {
586 if (hdmi->mode.pixclock < 10000) {
587 /* for 1080p8bit 148MHz */
588 hdmi_write(hdmi, 0x1d, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
589 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
590 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3);
591 hdmi_write(hdmi, 0x4c, HDMI_SLIPHDMIT_PARAM_SETTINGS_5);
592 hdmi_write(hdmi, 0x1e, HDMI_SLIPHDMIT_PARAM_SETTINGS_6);
593 hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7);
594 hdmi_write(hdmi, 0x0e, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
595 hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
596 hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
597 } else if (hdmi->mode.pixclock < 30000) {
598 /* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */
599 /*
600 * [1:0] Speed_A
601 * [3:2] Speed_B
602 * [4] PLLA_Bypass
603 * [6] DRV_TEST_EN
604 * [7] DRV_TEST_IN
605 */
606 hdmi_write(hdmi, 0x0f, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
607 /* PLLB_CONFIG[17], PLLA_CONFIG[17] - not in PHY datasheet */
608 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
609 /*
610 * [2:0] BGR_I_OFFSET
611 * [6:4] BGR_V_OFFSET
612 */
613 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3);
614 /* PLLA_CONFIG[7:0]: VCO gain, VCO offset, LPF resistance[0] */
615 hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5);
616 /*
617 * PLLA_CONFIG[15:8]: regulator voltage[0], CP current,
618 * LPF capacitance, LPF resistance[1]
619 */
620 hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6);
621 /* PLLB_CONFIG[7:0]: LPF resistance[0], VCO offset, VCO gain */
622 hdmi_write(hdmi, 0x4A, HDMI_SLIPHDMIT_PARAM_SETTINGS_7);
623 /*
624 * PLLB_CONFIG[15:8]: regulator voltage[0], CP current,
625 * LPF capacitance, LPF resistance[1]
626 */
627 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
628 /* DRV_CONFIG, PE_CONFIG */
629 hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
630 /*
631 * [2:0] AMON_SEL (4 == LPF voltage)
632 * [4] PLLA_CONFIG[16]
633 * [5] PLLB_CONFIG[16]
634 */
635 hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
636 } else {
637 /* for 480p8bit 27MHz */
638 hdmi_write(hdmi, 0x19, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
639 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
640 hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3);
641 hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5);
642 hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6);
643 hdmi_write(hdmi, 0x48, HDMI_SLIPHDMIT_PARAM_SETTINGS_7);
644 hdmi_write(hdmi, 0x0F, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
645 hdmi_write(hdmi, 0x20, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
646 hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
647 }
648 }
649
650 /**
651 * sh_hdmi_avi_infoframe_setup() - Auxiliary Video Information InfoFrame CONTROL PACKET
652 */
sh_hdmi_avi_infoframe_setup(struct sh_hdmi * hdmi)653 static void sh_hdmi_avi_infoframe_setup(struct sh_hdmi *hdmi)
654 {
655 u8 vic;
656
657 /* AVI InfoFrame */
658 hdmi_write(hdmi, 0x06, HDMI_CTRL_PKT_BUF_INDEX);
659
660 /* Packet Type = 0x82 */
661 hdmi_write(hdmi, 0x82, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
662
663 /* Version = 0x02 */
664 hdmi_write(hdmi, 0x02, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
665
666 /* Length = 13 (0x0D) */
667 hdmi_write(hdmi, 0x0D, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
668
669 /* N. A. Checksum */
670 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0);
671
672 /*
673 * Y = RGB
674 * A0 = No Data
675 * B = Bar Data not valid
676 * S = No Data
677 */
678 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1);
679
680 /*
681 * [7:6] C = Colorimetry: no data
682 * [5:4] M = 2: 16:9, 1: 4:3 Picture Aspect Ratio
683 * [3:0] R = 8: Active Frame Aspect Ratio: same as picture aspect ratio
684 */
685 hdmi_write(hdmi, 0x28, HDMI_CTRL_PKT_BUF_ACCESS_PB2);
686
687 /*
688 * ITC = No Data
689 * EC = xvYCC601
690 * Q = Default (depends on video format)
691 * SC = No Known non_uniform Scaling
692 */
693 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3);
694
695 /*
696 * VIC should be ignored if external config is used, so, we could just use 0,
697 * but play safe and use a valid value in any case just in case
698 */
699 if (hdmi->preprogrammed_vic)
700 vic = hdmi->preprogrammed_vic;
701 else
702 vic = 4;
703 hdmi_write(hdmi, vic, HDMI_CTRL_PKT_BUF_ACCESS_PB4);
704
705 /* PR = No Repetition */
706 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5);
707
708 /* Line Number of End of Top Bar (lower 8 bits) */
709 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6);
710
711 /* Line Number of End of Top Bar (upper 8 bits) */
712 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7);
713
714 /* Line Number of Start of Bottom Bar (lower 8 bits) */
715 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8);
716
717 /* Line Number of Start of Bottom Bar (upper 8 bits) */
718 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9);
719
720 /* Pixel Number of End of Left Bar (lower 8 bits) */
721 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10);
722
723 /* Pixel Number of End of Left Bar (upper 8 bits) */
724 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB11);
725
726 /* Pixel Number of Start of Right Bar (lower 8 bits) */
727 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB12);
728
729 /* Pixel Number of Start of Right Bar (upper 8 bits) */
730 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB13);
731 }
732
733 /**
734 * sh_hdmi_audio_infoframe_setup() - Audio InfoFrame of CONTROL PACKET
735 */
sh_hdmi_audio_infoframe_setup(struct sh_hdmi * hdmi)736 static void sh_hdmi_audio_infoframe_setup(struct sh_hdmi *hdmi)
737 {
738 /* Audio InfoFrame */
739 hdmi_write(hdmi, 0x08, HDMI_CTRL_PKT_BUF_INDEX);
740
741 /* Packet Type = 0x84 */
742 hdmi_write(hdmi, 0x84, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
743
744 /* Version Number = 0x01 */
745 hdmi_write(hdmi, 0x01, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
746
747 /* 0 Length = 10 (0x0A) */
748 hdmi_write(hdmi, 0x0A, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
749
750 /* n. a. Checksum */
751 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0);
752
753 /* Audio Channel Count = Refer to Stream Header */
754 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1);
755
756 /* Refer to Stream Header */
757 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB2);
758
759 /* Format depends on coding type (i.e. CT0...CT3) */
760 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3);
761
762 /* Speaker Channel Allocation = Front Right + Front Left */
763 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB4);
764
765 /* Level Shift Value = 0 dB, Down - mix is permitted or no information */
766 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5);
767
768 /* Reserved (0) */
769 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6);
770 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7);
771 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8);
772 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9);
773 hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10);
774 }
775
776 /**
777 * sh_hdmi_configure() - Initialise HDMI for output
778 */
sh_hdmi_configure(struct sh_hdmi * hdmi)779 static void sh_hdmi_configure(struct sh_hdmi *hdmi)
780 {
781 /* Configure video format */
782 sh_hdmi_video_config(hdmi);
783
784 /* Configure audio format */
785 sh_hdmi_audio_config(hdmi);
786
787 /* Configure PHY */
788 sh_hdmi_phy_config(hdmi);
789
790 /* Auxiliary Video Information (AVI) InfoFrame */
791 sh_hdmi_avi_infoframe_setup(hdmi);
792
793 /* Audio InfoFrame */
794 sh_hdmi_audio_infoframe_setup(hdmi);
795
796 /*
797 * Control packet auto send with VSYNC control: auto send
798 * General control, Gamut metadata, ISRC, and ACP packets
799 */
800 hdmi_write(hdmi, 0x8E, HDMI_CTRL_PKT_AUTO_SEND);
801
802 /* FIXME */
803 msleep(10);
804
805 /* PS mode b->d, reset PLLA and PLLB */
806 hdmi_bit_set(hdmi, 0xFC, 0x4C, HDMI_SYSTEM_CTRL);
807
808 udelay(10);
809
810 hdmi_bit_set(hdmi, 0xFC, 0x40, HDMI_SYSTEM_CTRL);
811 }
812
sh_hdmi_rate_error(struct sh_hdmi * hdmi,const struct fb_videomode * mode,unsigned long * hdmi_rate,unsigned long * parent_rate)813 static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi,
814 const struct fb_videomode *mode,
815 unsigned long *hdmi_rate, unsigned long *parent_rate)
816 {
817 unsigned long target = PICOS2KHZ(mode->pixclock) * 1000, rate_error;
818 struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
819
820 *hdmi_rate = clk_round_rate(hdmi->hdmi_clk, target);
821 if ((long)*hdmi_rate < 0)
822 *hdmi_rate = clk_get_rate(hdmi->hdmi_clk);
823
824 rate_error = (long)*hdmi_rate > 0 ? abs(*hdmi_rate - target) : ULONG_MAX;
825 if (rate_error && pdata->clk_optimize_parent)
826 rate_error = pdata->clk_optimize_parent(target, hdmi_rate, parent_rate);
827 else if (clk_get_parent(hdmi->hdmi_clk))
828 *parent_rate = clk_get_rate(clk_get_parent(hdmi->hdmi_clk));
829
830 dev_dbg(hdmi->dev, "%u-%u-%u-%u x %u-%u-%u-%u\n",
831 mode->left_margin, mode->xres,
832 mode->right_margin, mode->hsync_len,
833 mode->upper_margin, mode->yres,
834 mode->lower_margin, mode->vsync_len);
835
836 dev_dbg(hdmi->dev, "\t@%lu(+/-%lu)Hz, e=%lu / 1000, r=%uHz, p=%luHz\n", target,
837 rate_error, rate_error ? 10000 / (10 * target / rate_error) : 0,
838 mode->refresh, *parent_rate);
839
840 return rate_error;
841 }
842
sh_hdmi_read_edid(struct sh_hdmi * hdmi,unsigned long * hdmi_rate,unsigned long * parent_rate)843 static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
844 unsigned long *parent_rate)
845 {
846 struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
847 const struct fb_videomode *mode, *found = NULL;
848 unsigned int f_width = 0, f_height = 0, f_refresh = 0;
849 unsigned long found_rate_error = ULONG_MAX; /* silly compiler... */
850 bool scanning = false, preferred_bad = false;
851 bool use_edid_mode = false;
852 u8 edid[128];
853 char *forced;
854 int i;
855
856 /* Read EDID */
857 dev_dbg(hdmi->dev, "Read back EDID code:");
858 for (i = 0; i < 128; i++) {
859 edid[i] = (hdmi->htop1) ?
860 (u8)hdmi_htop1_read(hdmi, HDMI_HTOP1_EDID_DATA_READ + (i * 4)) :
861 hdmi_read(hdmi, HDMI_EDID_KSV_FIFO_ACCESS_WINDOW);
862 #ifdef DEBUG
863 if ((i % 16) == 0) {
864 printk(KERN_CONT "\n");
865 printk(KERN_DEBUG "%02X | %02X", i, edid[i]);
866 } else {
867 printk(KERN_CONT " %02X", edid[i]);
868 }
869 #endif
870 }
871 #ifdef DEBUG
872 printk(KERN_CONT "\n");
873 #endif
874
875 if (!hdmi->edid_blocks) {
876 fb_edid_to_monspecs(edid, &hdmi->monspec);
877 hdmi->edid_blocks = edid[126] + 1;
878
879 dev_dbg(hdmi->dev, "%d main modes, %d extension blocks\n",
880 hdmi->monspec.modedb_len, hdmi->edid_blocks - 1);
881 } else {
882 dev_dbg(hdmi->dev, "Extension %u detected, DTD start %u\n",
883 edid[0], edid[2]);
884 fb_edid_add_monspecs(edid, &hdmi->monspec);
885 }
886
887 if (hdmi->edid_blocks > hdmi->edid_segment_nr * 2 +
888 (hdmi->edid_block_addr >> 7) + 1) {
889 /* More blocks to read */
890 if (hdmi->edid_block_addr) {
891 hdmi->edid_block_addr = 0;
892 hdmi->edid_segment_nr++;
893 } else {
894 hdmi->edid_block_addr = 0x80;
895 }
896 /* Set EDID word address */
897 hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS);
898 /* Enable EDID interrupt */
899 hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1);
900 /* Set EDID segment pointer - starts reading EDID */
901 hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER);
902 return -EAGAIN;
903 }
904
905 /* All E-EDID blocks ready */
906 dev_dbg(hdmi->dev, "%d main and extended modes\n", hdmi->monspec.modedb_len);
907
908 fb_get_options("sh_mobile_lcdc", &forced);
909 if (forced && *forced) {
910 /* Only primitive parsing so far */
911 i = sscanf(forced, "%ux%u@%u",
912 &f_width, &f_height, &f_refresh);
913 if (i < 2) {
914 f_width = 0;
915 f_height = 0;
916 } else {
917 /* The user wants us to use the EDID data */
918 scanning = true;
919 }
920 dev_dbg(hdmi->dev, "Forced mode %ux%u@%uHz\n",
921 f_width, f_height, f_refresh);
922 }
923
924 /* Walk monitor modes to find the best or the exact match */
925 for (i = 0, mode = hdmi->monspec.modedb;
926 i < hdmi->monspec.modedb_len && scanning;
927 i++, mode++) {
928 unsigned long rate_error;
929
930 if (!f_width && !f_height) {
931 /*
932 * A parameter string "video=sh_mobile_lcdc:0x0" means
933 * use the preferred EDID mode. If it is rejected by
934 * .fb_check_var(), keep looking, until an acceptable
935 * one is found.
936 */
937 if ((mode->flag & FB_MODE_IS_FIRST) || preferred_bad)
938 scanning = false;
939 else
940 continue;
941 } else if (f_width != mode->xres || f_height != mode->yres) {
942 /* No interest in unmatching modes */
943 continue;
944 }
945
946 rate_error = sh_hdmi_rate_error(hdmi, mode, hdmi_rate, parent_rate);
947
948 if (scanning) {
949 if (f_refresh == mode->refresh || (!f_refresh && !rate_error))
950 /*
951 * Exact match if either the refresh rate
952 * matches or it hasn't been specified and we've
953 * found a mode, for which we can configure the
954 * clock precisely
955 */
956 scanning = false;
957 else if (found && found_rate_error <= rate_error)
958 /*
959 * We otherwise search for the closest matching
960 * clock rate - either if no refresh rate has
961 * been specified or we cannot find an exactly
962 * matching one
963 */
964 continue;
965 }
966
967 /* Check if supported: sufficient fb memory, supported clock-rate */
968 if (ch && ch->notify &&
969 ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_MODE, mode,
970 NULL)) {
971 scanning = true;
972 preferred_bad = true;
973 continue;
974 }
975
976 found = mode;
977 found_rate_error = rate_error;
978 use_edid_mode = true;
979 }
980
981 /*
982 * TODO 1: if no default mode is present, postpone running the config
983 * until after the LCDC channel is initialized.
984 * TODO 2: consider registering the HDMI platform device from the LCDC
985 * driver.
986 */
987 if (!found && hdmi->entity.def_mode.xres != 0) {
988 found = &hdmi->entity.def_mode;
989 found_rate_error = sh_hdmi_rate_error(hdmi, found, hdmi_rate,
990 parent_rate);
991 }
992
993 /* No cookie today */
994 if (!found)
995 return -ENXIO;
996
997 if (found->xres == 640 && found->yres == 480 && found->refresh == 60)
998 hdmi->preprogrammed_vic = 1;
999 else if (found->xres == 720 && found->yres == 480 && found->refresh == 60)
1000 hdmi->preprogrammed_vic = 2;
1001 else if (found->xres == 720 && found->yres == 576 && found->refresh == 50)
1002 hdmi->preprogrammed_vic = 17;
1003 else if (found->xres == 1280 && found->yres == 720 && found->refresh == 60)
1004 hdmi->preprogrammed_vic = 4;
1005 else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 24)
1006 hdmi->preprogrammed_vic = 32;
1007 else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 50)
1008 hdmi->preprogrammed_vic = 31;
1009 else if (found->xres == 1920 && found->yres == 1080 && found->refresh == 60)
1010 hdmi->preprogrammed_vic = 16;
1011 else
1012 hdmi->preprogrammed_vic = 0;
1013
1014 dev_dbg(hdmi->dev, "Using %s %s mode %ux%u@%uHz (%luHz), "
1015 "clock error %luHz\n", use_edid_mode ? "EDID" : "default",
1016 hdmi->preprogrammed_vic ? "VIC" : "external", found->xres,
1017 found->yres, found->refresh, PICOS2KHZ(found->pixclock) * 1000,
1018 found_rate_error);
1019
1020 hdmi->mode = *found;
1021 sh_hdmi_external_video_param(hdmi);
1022
1023 return 0;
1024 }
1025
sh_hdmi_hotplug(int irq,void * dev_id)1026 static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id)
1027 {
1028 struct sh_hdmi *hdmi = dev_id;
1029 u8 status1, status2, mask1, mask2;
1030
1031 /* mode_b and PLLA and PLLB reset */
1032 hdmi_bit_set(hdmi, 0xFC, 0x2C, HDMI_SYSTEM_CTRL);
1033
1034 /* How long shall reset be held? */
1035 udelay(10);
1036
1037 /* mode_b and PLLA and PLLB reset release */
1038 hdmi_bit_set(hdmi, 0xFC, 0x20, HDMI_SYSTEM_CTRL);
1039
1040 status1 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_1);
1041 status2 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_2);
1042
1043 mask1 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_1);
1044 mask2 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_2);
1045
1046 /* Correct would be to ack only set bits, but the datasheet requires 0xff */
1047 hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_1);
1048 hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_2);
1049
1050 if (printk_ratelimit())
1051 dev_dbg(hdmi->dev, "IRQ #%d: Status #1: 0x%x & 0x%x, #2: 0x%x & 0x%x\n",
1052 irq, status1, mask1, status2, mask2);
1053
1054 if (!((status1 & mask1) | (status2 & mask2))) {
1055 return IRQ_NONE;
1056 } else if (status1 & 0xc0) {
1057 u8 msens;
1058
1059 /* Datasheet specifies 10ms... */
1060 udelay(500);
1061
1062 msens = hdmi_read(hdmi, HDMI_HOT_PLUG_MSENS_STATUS);
1063 dev_dbg(hdmi->dev, "MSENS 0x%x\n", msens);
1064 /* Check, if hot plug & MSENS pin status are both high */
1065 if ((msens & 0xC0) == 0xC0) {
1066 /* Display plug in */
1067 hdmi->edid_segment_nr = 0;
1068 hdmi->edid_block_addr = 0;
1069 hdmi->edid_blocks = 0;
1070 hdmi->hp_state = HDMI_HOTPLUG_CONNECTED;
1071
1072 /* Set EDID word address */
1073 hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS);
1074 /* Enable EDID interrupt */
1075 hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1);
1076 /* Set EDID segment pointer - starts reading EDID */
1077 hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
1078 } else if (!(status1 & 0x80)) {
1079 /* Display unplug, beware multiple interrupts */
1080 if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED) {
1081 hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
1082 schedule_delayed_work(&hdmi->edid_work, 0);
1083 }
1084 /* display_off will switch back to mode_a */
1085 }
1086 } else if (status1 & 2) {
1087 /* EDID error interrupt: retry */
1088 /* Set EDID word address */
1089 hdmi_write(hdmi, hdmi->edid_block_addr, HDMI_EDID_WORD_ADDRESS);
1090 /* Set EDID segment pointer */
1091 hdmi_write(hdmi, hdmi->edid_segment_nr, HDMI_EDID_SEGMENT_POINTER);
1092 } else if (status1 & 4) {
1093 /* Disable EDID interrupt */
1094 hdmi_write(hdmi, 0xC0, HDMI_INTERRUPT_MASK_1);
1095 schedule_delayed_work(&hdmi->edid_work, msecs_to_jiffies(10));
1096 }
1097
1098 return IRQ_HANDLED;
1099 }
1100
sh_hdmi_display_on(struct sh_mobile_lcdc_entity * entity)1101 static int sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity)
1102 {
1103 struct sh_hdmi *hdmi = entity_to_sh_hdmi(entity);
1104
1105 dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, hdmi,
1106 hdmi->hp_state);
1107
1108 /*
1109 * hp_state can be set to
1110 * HDMI_HOTPLUG_DISCONNECTED: on monitor unplug
1111 * HDMI_HOTPLUG_CONNECTED: on monitor plug-in
1112 * HDMI_HOTPLUG_EDID_DONE: on EDID read completion
1113 */
1114 if (hdmi->hp_state == HDMI_HOTPLUG_EDID_DONE) {
1115 /* PS mode d->e. All functions are active */
1116 hdmi_bit_set(hdmi, 0xFC, 0x80, HDMI_SYSTEM_CTRL);
1117 dev_dbg(hdmi->dev, "HDMI running\n");
1118 }
1119
1120 return hdmi->hp_state == HDMI_HOTPLUG_DISCONNECTED
1121 ? SH_MOBILE_LCDC_DISPLAY_DISCONNECTED
1122 : SH_MOBILE_LCDC_DISPLAY_CONNECTED;
1123 }
1124
sh_hdmi_display_off(struct sh_mobile_lcdc_entity * entity)1125 static void sh_hdmi_display_off(struct sh_mobile_lcdc_entity *entity)
1126 {
1127 struct sh_hdmi *hdmi = entity_to_sh_hdmi(entity);
1128
1129 dev_dbg(hdmi->dev, "%s(%p)\n", __func__, hdmi);
1130 /* PS mode e->a */
1131 hdmi_bit_set(hdmi, 0xFC, 0x10, HDMI_SYSTEM_CTRL);
1132 }
1133
1134 static const struct sh_mobile_lcdc_entity_ops sh_hdmi_ops = {
1135 .display_on = sh_hdmi_display_on,
1136 .display_off = sh_hdmi_display_off,
1137 };
1138
1139 /**
1140 * sh_hdmi_clk_configure() - set HDMI clock frequency and enable the clock
1141 * @hdmi: driver context
1142 * @hdmi_rate: HDMI clock frequency in Hz
1143 * @parent_rate: if != 0 - set parent clock rate for optimal precision
1144 * return: configured positive rate if successful
1145 * 0 if couldn't set the rate, but managed to enable the
1146 * clock, negative error, if couldn't enable the clock
1147 */
sh_hdmi_clk_configure(struct sh_hdmi * hdmi,unsigned long hdmi_rate,unsigned long parent_rate)1148 static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long hdmi_rate,
1149 unsigned long parent_rate)
1150 {
1151 int ret;
1152
1153 if (parent_rate && clk_get_parent(hdmi->hdmi_clk)) {
1154 ret = clk_set_rate(clk_get_parent(hdmi->hdmi_clk), parent_rate);
1155 if (ret < 0) {
1156 dev_warn(hdmi->dev, "Cannot set parent rate %ld: %d\n", parent_rate, ret);
1157 hdmi_rate = clk_round_rate(hdmi->hdmi_clk, hdmi_rate);
1158 } else {
1159 dev_dbg(hdmi->dev, "HDMI set parent frequency %lu\n", parent_rate);
1160 }
1161 }
1162
1163 ret = clk_set_rate(hdmi->hdmi_clk, hdmi_rate);
1164 if (ret < 0) {
1165 dev_warn(hdmi->dev, "Cannot set rate %ld: %d\n", hdmi_rate, ret);
1166 hdmi_rate = 0;
1167 } else {
1168 dev_dbg(hdmi->dev, "HDMI set frequency %lu\n", hdmi_rate);
1169 }
1170
1171 return hdmi_rate;
1172 }
1173
1174 /* Hotplug interrupt occurred, read EDID */
sh_hdmi_edid_work_fn(struct work_struct * work)1175 static void sh_hdmi_edid_work_fn(struct work_struct *work)
1176 {
1177 struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work);
1178 struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
1179 int ret;
1180
1181 dev_dbg(hdmi->dev, "%s(%p): begin, hotplug status %d\n", __func__, hdmi,
1182 hdmi->hp_state);
1183
1184 if (hdmi->hp_state == HDMI_HOTPLUG_CONNECTED) {
1185 unsigned long parent_rate = 0, hdmi_rate;
1186
1187 ret = sh_hdmi_read_edid(hdmi, &hdmi_rate, &parent_rate);
1188 if (ret < 0)
1189 goto out;
1190
1191 hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE;
1192
1193 /* Reconfigure the clock */
1194 ret = sh_hdmi_clk_configure(hdmi, hdmi_rate, parent_rate);
1195 if (ret < 0)
1196 goto out;
1197
1198 msleep(10);
1199 sh_hdmi_configure(hdmi);
1200 /* Switched to another (d) power-save mode */
1201 msleep(10);
1202
1203 if (ch && ch->notify)
1204 ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT,
1205 &hdmi->mode, &hdmi->monspec);
1206 } else {
1207 hdmi->monspec.modedb_len = 0;
1208 fb_destroy_modedb(hdmi->monspec.modedb);
1209 hdmi->monspec.modedb = NULL;
1210
1211 if (ch && ch->notify)
1212 ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT,
1213 NULL, NULL);
1214
1215 ret = 0;
1216 }
1217
1218 out:
1219 if (ret < 0 && ret != -EAGAIN)
1220 hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
1221
1222 dev_dbg(hdmi->dev, "%s(%p): end\n", __func__, hdmi);
1223 }
1224
sh_hdmi_htop1_init(struct sh_hdmi * hdmi)1225 static void sh_hdmi_htop1_init(struct sh_hdmi *hdmi)
1226 {
1227 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_MODE);
1228 hdmi_htop1_write(hdmi, 0x0000000b, 0x0010);
1229 hdmi_htop1_write(hdmi, 0x00006710, HDMI_HTOP1_HTOP_DCL_FRC_MODE);
1230 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y1_1);
1231 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y1_2);
1232 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB1_1);
1233 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB1_2);
1234 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR1_1);
1235 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR1_2);
1236 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y2_1);
1237 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_Y2_2);
1238 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB2_1);
1239 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CB2_2);
1240 hdmi_htop1_write(hdmi, 0x01020406, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR2_1);
1241 hdmi_htop1_write(hdmi, 0x07080806, HDMI_HTOP1_HTOP_DCL_FIL_PARA_CR2_2);
1242 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_Y1);
1243 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_CB1);
1244 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_CR1);
1245 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_Y2);
1246 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_CB2);
1247 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_HTOP_DCL_COR_PARA_CR2);
1248 hdmi_htop1_write(hdmi, 0x00000008, HDMI_HTOP1_CURRENT);
1249 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_TISEMP0_1);
1250 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_TISEMP2_C);
1251 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_PHY_TEST_MODE);
1252 hdmi_htop1_write(hdmi, 0x00000081, HDMI_HTOP1_TISIDRV);
1253 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_PLLBW);
1254 hdmi_htop1_write(hdmi, 0x0000000f, HDMI_HTOP1_TISEN);
1255 hdmi_htop1_write(hdmi, 0x0000000f, HDMI_HTOP1_TISDREN);
1256 hdmi_htop1_write(hdmi, 0x00000003, HDMI_HTOP1_ENABLE_SELECTOR);
1257 hdmi_htop1_write(hdmi, 0x00000001, HDMI_HTOP1_MACRO_RESET);
1258 hdmi_htop1_write(hdmi, 0x00000016, HDMI_HTOP1_CISRANGE);
1259 msleep(100);
1260 hdmi_htop1_write(hdmi, 0x00000001, HDMI_HTOP1_ENABLE_SELECTOR);
1261 msleep(100);
1262 hdmi_htop1_write(hdmi, 0x00000003, HDMI_HTOP1_ENABLE_SELECTOR);
1263 hdmi_htop1_write(hdmi, 0x00000001, HDMI_HTOP1_MACRO_RESET);
1264 hdmi_htop1_write(hdmi, 0x0000000f, HDMI_HTOP1_TISEN);
1265 hdmi_htop1_write(hdmi, 0x0000000f, HDMI_HTOP1_TISDREN);
1266 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_VIDEO_INPUT);
1267 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_CLK_TO_PHY);
1268 hdmi_htop1_write(hdmi, 0x00000000, HDMI_HTOP1_VIDEO_INPUT2);
1269 hdmi_htop1_write(hdmi, 0x0000000a, HDMI_HTOP1_CLK_SET);
1270 }
1271
sh_hdmi_probe(struct platform_device * pdev)1272 static int __init sh_hdmi_probe(struct platform_device *pdev)
1273 {
1274 struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data;
1275 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1276 struct resource *htop1_res;
1277 int irq = platform_get_irq(pdev, 0), ret;
1278 struct sh_hdmi *hdmi;
1279 long rate;
1280
1281 if (!res || !pdata || irq < 0)
1282 return -ENODEV;
1283
1284 htop1_res = NULL;
1285 if (pdata->flags & HDMI_HAS_HTOP1) {
1286 htop1_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
1287 if (!htop1_res) {
1288 dev_err(&pdev->dev, "htop1 needs register base\n");
1289 return -EINVAL;
1290 }
1291 }
1292
1293 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
1294 if (!hdmi) {
1295 dev_err(&pdev->dev, "Cannot allocate device data\n");
1296 return -ENOMEM;
1297 }
1298
1299 hdmi->dev = &pdev->dev;
1300 hdmi->entity.owner = THIS_MODULE;
1301 hdmi->entity.ops = &sh_hdmi_ops;
1302
1303 hdmi->hdmi_clk = clk_get(&pdev->dev, "ick");
1304 if (IS_ERR(hdmi->hdmi_clk)) {
1305 ret = PTR_ERR(hdmi->hdmi_clk);
1306 dev_err(&pdev->dev, "Unable to get clock: %d\n", ret);
1307 goto egetclk;
1308 }
1309
1310 /* select register access functions */
1311 if (pdata->flags & HDMI_32BIT_REG) {
1312 hdmi->write = __hdmi_write32;
1313 hdmi->read = __hdmi_read32;
1314 } else {
1315 hdmi->write = __hdmi_write8;
1316 hdmi->read = __hdmi_read8;
1317 }
1318
1319 /* An arbitrary relaxed pixclock just to get things started: from standard 480p */
1320 rate = clk_round_rate(hdmi->hdmi_clk, PICOS2KHZ(37037));
1321 if (rate > 0)
1322 rate = sh_hdmi_clk_configure(hdmi, rate, 0);
1323
1324 if (rate < 0) {
1325 ret = rate;
1326 goto erate;
1327 }
1328
1329 ret = clk_enable(hdmi->hdmi_clk);
1330 if (ret < 0) {
1331 dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret);
1332 goto erate;
1333 }
1334
1335 dev_dbg(&pdev->dev, "Enabled HDMI clock at %luHz\n", rate);
1336
1337 if (!request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev))) {
1338 dev_err(&pdev->dev, "HDMI register region already claimed\n");
1339 ret = -EBUSY;
1340 goto ereqreg;
1341 }
1342
1343 hdmi->base = ioremap(res->start, resource_size(res));
1344 if (!hdmi->base) {
1345 dev_err(&pdev->dev, "HDMI register region already claimed\n");
1346 ret = -ENOMEM;
1347 goto emap;
1348 }
1349
1350 platform_set_drvdata(pdev, &hdmi->entity);
1351
1352 INIT_DELAYED_WORK(&hdmi->edid_work, sh_hdmi_edid_work_fn);
1353
1354 pm_runtime_enable(&pdev->dev);
1355 pm_runtime_get_sync(&pdev->dev);
1356
1357 /* init interrupt polarity */
1358 if (pdata->flags & HDMI_OUTPUT_PUSH_PULL)
1359 hdmi_bit_set(hdmi, 0x02, 0x02, HDMI_SYSTEM_CTRL);
1360
1361 if (pdata->flags & HDMI_OUTPUT_POLARITY_HI)
1362 hdmi_bit_set(hdmi, 0x01, 0x01, HDMI_SYSTEM_CTRL);
1363
1364 /* enable htop1 register if needed */
1365 if (htop1_res) {
1366 hdmi->htop1 = ioremap(htop1_res->start, resource_size(htop1_res));
1367 if (!hdmi->htop1) {
1368 dev_err(&pdev->dev, "control register region already claimed\n");
1369 ret = -ENOMEM;
1370 goto emap_htop1;
1371 }
1372 sh_hdmi_htop1_init(hdmi);
1373 }
1374
1375 /* Product and revision IDs are 0 in sh-mobile version */
1376 dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n",
1377 hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID));
1378
1379 ret = request_irq(irq, sh_hdmi_hotplug, 0,
1380 dev_name(&pdev->dev), hdmi);
1381 if (ret < 0) {
1382 dev_err(&pdev->dev, "Unable to request irq: %d\n", ret);
1383 goto ereqirq;
1384 }
1385
1386 ret = snd_soc_register_codec(&pdev->dev,
1387 &soc_codec_dev_sh_hdmi, &sh_hdmi_dai, 1);
1388 if (ret < 0) {
1389 dev_err(&pdev->dev, "codec registration failed\n");
1390 goto ecodec;
1391 }
1392
1393 return 0;
1394
1395 ecodec:
1396 free_irq(irq, hdmi);
1397 ereqirq:
1398 if (hdmi->htop1)
1399 iounmap(hdmi->htop1);
1400 emap_htop1:
1401 pm_runtime_put(&pdev->dev);
1402 pm_runtime_disable(&pdev->dev);
1403 iounmap(hdmi->base);
1404 emap:
1405 release_mem_region(res->start, resource_size(res));
1406 ereqreg:
1407 clk_disable(hdmi->hdmi_clk);
1408 erate:
1409 clk_put(hdmi->hdmi_clk);
1410 egetclk:
1411 kfree(hdmi);
1412
1413 return ret;
1414 }
1415
sh_hdmi_remove(struct platform_device * pdev)1416 static int __exit sh_hdmi_remove(struct platform_device *pdev)
1417 {
1418 struct sh_hdmi *hdmi = entity_to_sh_hdmi(platform_get_drvdata(pdev));
1419 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1420 int irq = platform_get_irq(pdev, 0);
1421
1422 snd_soc_unregister_codec(&pdev->dev);
1423
1424 /* No new work will be scheduled, wait for running ISR */
1425 free_irq(irq, hdmi);
1426 /* Wait for already scheduled work */
1427 cancel_delayed_work_sync(&hdmi->edid_work);
1428 pm_runtime_put(&pdev->dev);
1429 pm_runtime_disable(&pdev->dev);
1430 clk_disable(hdmi->hdmi_clk);
1431 clk_put(hdmi->hdmi_clk);
1432 if (hdmi->htop1)
1433 iounmap(hdmi->htop1);
1434 iounmap(hdmi->base);
1435 release_mem_region(res->start, resource_size(res));
1436 kfree(hdmi);
1437
1438 return 0;
1439 }
1440
1441 static struct platform_driver sh_hdmi_driver = {
1442 .remove = __exit_p(sh_hdmi_remove),
1443 .driver = {
1444 .name = "sh-mobile-hdmi",
1445 },
1446 };
1447
1448 module_platform_driver_probe(sh_hdmi_driver, sh_hdmi_probe);
1449
1450 MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
1451 MODULE_DESCRIPTION("SuperH / ARM-shmobile HDMI driver");
1452 MODULE_LICENSE("GPL v2");
1453