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1 /*
2  * adv7842 - Analog Devices ADV7842 video decoder driver
3  *
4  * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
5  *
6  * This program is free software; you may redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; version 2 of the License.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17  * SOFTWARE.
18  *
19  */
20 
21 #ifndef _ADV7842_
22 #define _ADV7842_
23 
24 /* Analog input muxing modes (AFE register 0x02, [2:0]) */
25 enum adv7842_ain_sel {
26 	ADV7842_AIN1_2_3_NC_SYNC_1_2 = 0,
27 	ADV7842_AIN4_5_6_NC_SYNC_2_1 = 1,
28 	ADV7842_AIN7_8_9_NC_SYNC_3_1 = 2,
29 	ADV7842_AIN10_11_12_NC_SYNC_4_1 = 3,
30 	ADV7842_AIN9_4_5_6_SYNC_2_1 = 4,
31 };
32 
33 /* Bus rotation and reordering (IO register 0x04, [7:5]) */
34 enum adv7842_op_ch_sel {
35 	ADV7842_OP_CH_SEL_GBR = 0,
36 	ADV7842_OP_CH_SEL_GRB = 1,
37 	ADV7842_OP_CH_SEL_BGR = 2,
38 	ADV7842_OP_CH_SEL_RGB = 3,
39 	ADV7842_OP_CH_SEL_BRG = 4,
40 	ADV7842_OP_CH_SEL_RBG = 5,
41 };
42 
43 /* Mode of operation */
44 enum adv7842_mode {
45 	ADV7842_MODE_SDP,
46 	ADV7842_MODE_COMP,
47 	ADV7842_MODE_RGB,
48 	ADV7842_MODE_HDMI
49 };
50 
51 /* Video standard select (IO register 0x00, [5:0]) */
52 enum adv7842_vid_std_select {
53 	/* SDP */
54 	ADV7842_SDP_VID_STD_CVBS_SD_4x1 = 0x01,
55 	ADV7842_SDP_VID_STD_YC_SD4_x1 = 0x09,
56 	/* RGB */
57 	ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE = 0x07,
58 	/* HDMI GR */
59 	ADV7842_HDMI_GR_VID_STD_AUTO_GRAPH_MODE = 0x02,
60 	/* HDMI COMP */
61 	ADV7842_HDMI_COMP_VID_STD_HD_1250P = 0x1e,
62 };
63 
64 /* Input Color Space (IO register 0x02, [7:4]) */
65 enum adv7842_inp_color_space {
66 	ADV7842_INP_COLOR_SPACE_LIM_RGB = 0,
67 	ADV7842_INP_COLOR_SPACE_FULL_RGB = 1,
68 	ADV7842_INP_COLOR_SPACE_LIM_YCbCr_601 = 2,
69 	ADV7842_INP_COLOR_SPACE_LIM_YCbCr_709 = 3,
70 	ADV7842_INP_COLOR_SPACE_XVYCC_601 = 4,
71 	ADV7842_INP_COLOR_SPACE_XVYCC_709 = 5,
72 	ADV7842_INP_COLOR_SPACE_FULL_YCbCr_601 = 6,
73 	ADV7842_INP_COLOR_SPACE_FULL_YCbCr_709 = 7,
74 	ADV7842_INP_COLOR_SPACE_AUTO = 0xf,
75 };
76 
77 /* Select output format (IO register 0x03, [7:0]) */
78 enum adv7842_op_format_sel {
79 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_8 = 0x00,
80 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_10 = 0x01,
81 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_12_MODE0 = 0x02,
82 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_12_MODE1 = 0x06,
83 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_12_MODE2 = 0x0a,
84 	ADV7842_OP_FORMAT_SEL_DDR_422_8 = 0x20,
85 	ADV7842_OP_FORMAT_SEL_DDR_422_10 = 0x21,
86 	ADV7842_OP_FORMAT_SEL_DDR_422_12_MODE0 = 0x22,
87 	ADV7842_OP_FORMAT_SEL_DDR_422_12_MODE1 = 0x23,
88 	ADV7842_OP_FORMAT_SEL_DDR_422_12_MODE2 = 0x24,
89 	ADV7842_OP_FORMAT_SEL_SDR_444_24 = 0x40,
90 	ADV7842_OP_FORMAT_SEL_SDR_444_30 = 0x41,
91 	ADV7842_OP_FORMAT_SEL_SDR_444_36_MODE0 = 0x42,
92 	ADV7842_OP_FORMAT_SEL_DDR_444_24 = 0x60,
93 	ADV7842_OP_FORMAT_SEL_DDR_444_30 = 0x61,
94 	ADV7842_OP_FORMAT_SEL_DDR_444_36 = 0x62,
95 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_16 = 0x80,
96 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_20 = 0x81,
97 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_24_MODE0 = 0x82,
98 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_24_MODE1 = 0x86,
99 	ADV7842_OP_FORMAT_SEL_SDR_ITU656_24_MODE2 = 0x8a,
100 };
101 
102 enum adv7842_select_input {
103 	ADV7842_SELECT_HDMI_PORT_A,
104 	ADV7842_SELECT_HDMI_PORT_B,
105 	ADV7842_SELECT_VGA_RGB,
106 	ADV7842_SELECT_VGA_COMP,
107 	ADV7842_SELECT_SDP_CVBS,
108 	ADV7842_SELECT_SDP_YC,
109 };
110 
111 enum adv7842_drive_strength {
112 	ADV7842_DR_STR_LOW = 0,
113 	ADV7842_DR_STR_MEDIUM_LOW = 1,
114 	ADV7842_DR_STR_MEDIUM_HIGH = 2,
115 	ADV7842_DR_STR_HIGH = 3,
116 };
117 
118 struct adv7842_sdp_csc_coeff {
119 	bool manual;
120 	uint16_t scaling;
121 	uint16_t A1;
122 	uint16_t A2;
123 	uint16_t A3;
124 	uint16_t A4;
125 	uint16_t B1;
126 	uint16_t B2;
127 	uint16_t B3;
128 	uint16_t B4;
129 	uint16_t C1;
130 	uint16_t C2;
131 	uint16_t C3;
132 	uint16_t C4;
133 };
134 
135 struct adv7842_sdp_io_sync_adjustment {
136 	bool adjust;
137 	uint16_t hs_beg;
138 	uint16_t hs_width;
139 	uint16_t de_beg;
140 	uint16_t de_end;
141 	uint8_t vs_beg_o;
142 	uint8_t vs_beg_e;
143 	uint8_t vs_end_o;
144 	uint8_t vs_end_e;
145 	uint8_t de_v_beg_o;
146 	uint8_t de_v_beg_e;
147 	uint8_t de_v_end_o;
148 	uint8_t de_v_end_e;
149 };
150 
151 /* Platform dependent definition */
152 struct adv7842_platform_data {
153 	/* chip reset during probe */
154 	unsigned chip_reset:1;
155 
156 	/* DIS_PWRDNB: 1 if the PWRDNB pin is unused and unconnected */
157 	unsigned disable_pwrdnb:1;
158 
159 	/* DIS_CABLE_DET_RST: 1 if the 5V pins are unused and unconnected */
160 	unsigned disable_cable_det_rst:1;
161 
162 	/* Analog input muxing mode */
163 	enum adv7842_ain_sel ain_sel;
164 
165 	/* Bus rotation and reordering */
166 	enum adv7842_op_ch_sel op_ch_sel;
167 
168 	/* Default mode */
169 	enum adv7842_mode mode;
170 
171 	/* Default input */
172 	unsigned input;
173 
174 	/* Video standard */
175 	enum adv7842_vid_std_select vid_std_select;
176 
177 	/* Select output format */
178 	enum adv7842_op_format_sel op_format_sel;
179 
180 	/* IO register 0x02 */
181 	unsigned alt_gamma:1;
182 	unsigned op_656_range:1;
183 	unsigned rgb_out:1;
184 	unsigned alt_data_sat:1;
185 
186 	/* IO register 0x05 */
187 	unsigned blank_data:1;
188 	unsigned insert_av_codes:1;
189 	unsigned replicate_av_codes:1;
190 	unsigned invert_cbcr:1;
191 
192 	/* IO register 0x30 */
193 	unsigned output_bus_lsb_to_msb:1;
194 
195 	/* IO register 0x14 */
196 	enum adv7842_drive_strength dr_str_data;
197 	enum adv7842_drive_strength dr_str_clk;
198 	enum adv7842_drive_strength dr_str_sync;
199 
200 	/*
201 	 * IO register 0x19: Adjustment to the LLC DLL phase in
202 	 * increments of 1/32 of a clock period.
203 	 */
204 	unsigned llc_dll_phase:5;
205 
206 	/* External RAM for 3-D comb or frame synchronizer */
207 	unsigned sd_ram_size; /* ram size in MB */
208 	unsigned sd_ram_ddr:1; /* ddr or sdr sdram */
209 
210 	/* HDMI free run, CP-reg 0xBA */
211 	unsigned hdmi_free_run_enable:1;
212 	/* 0 = Mode 0: run when there is no TMDS clock
213 	   1 = Mode 1: run when there is no TMDS clock or the
214 	       video resolution does not match programmed one. */
215 	unsigned hdmi_free_run_mode:1;
216 
217 	/* SDP free run, CP-reg 0xDD */
218 	unsigned sdp_free_run_auto:1;
219 	unsigned sdp_free_run_man_col_en:1;
220 	unsigned sdp_free_run_cbar_en:1;
221 	unsigned sdp_free_run_force:1;
222 
223 	/* HPA manual (0) or auto (1), affects HDMI register 0x69 */
224 	unsigned hpa_auto:1;
225 
226 	struct adv7842_sdp_csc_coeff sdp_csc_coeff;
227 
228 	struct adv7842_sdp_io_sync_adjustment sdp_io_sync_625;
229 	struct adv7842_sdp_io_sync_adjustment sdp_io_sync_525;
230 
231 	/* i2c addresses */
232 	u8 i2c_sdp_io;
233 	u8 i2c_sdp;
234 	u8 i2c_cp;
235 	u8 i2c_vdp;
236 	u8 i2c_afe;
237 	u8 i2c_hdmi;
238 	u8 i2c_repeater;
239 	u8 i2c_edid;
240 	u8 i2c_infoframe;
241 	u8 i2c_cec;
242 	u8 i2c_avlink;
243 };
244 
245 #define V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE	(V4L2_CID_DV_CLASS_BASE + 0x1000)
246 #define V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL	(V4L2_CID_DV_CLASS_BASE + 0x1001)
247 #define V4L2_CID_ADV_RX_FREE_RUN_COLOR		(V4L2_CID_DV_CLASS_BASE + 0x1002)
248 
249 /* notify events */
250 #define ADV7842_FMT_CHANGE	1
251 
252 /* custom ioctl, used to test the external RAM that's used by the
253  * deinterlacer. */
254 #define ADV7842_CMD_RAM_TEST _IO('V', BASE_VIDIOC_PRIVATE)
255 
256 #define ADV7842_EDID_PORT_A   0
257 #define ADV7842_EDID_PORT_B   1
258 #define ADV7842_EDID_PORT_VGA 2
259 
260 #endif
261