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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 /*
34  * Bus rotation and reordering. This is used to specify component reordering on
35  * the board and describes the components order on the bus when the ADV7842
36  * outputs RGB.
37  */
38 enum adv7842_bus_order {
39 	ADV7842_BUS_ORDER_RGB,		/* No operation	*/
40 	ADV7842_BUS_ORDER_GRB,		/* Swap 1-2	*/
41 	ADV7842_BUS_ORDER_RBG,		/* Swap 2-3	*/
42 	ADV7842_BUS_ORDER_BGR,		/* Swap 1-3	*/
43 	ADV7842_BUS_ORDER_BRG,		/* Rotate right	*/
44 	ADV7842_BUS_ORDER_GBR,		/* Rotate left	*/
45 };
46 
47 /* Input Color Space (IO register 0x02, [7:4]) */
48 enum adv7842_inp_color_space {
49 	ADV7842_INP_COLOR_SPACE_LIM_RGB = 0,
50 	ADV7842_INP_COLOR_SPACE_FULL_RGB = 1,
51 	ADV7842_INP_COLOR_SPACE_LIM_YCbCr_601 = 2,
52 	ADV7842_INP_COLOR_SPACE_LIM_YCbCr_709 = 3,
53 	ADV7842_INP_COLOR_SPACE_XVYCC_601 = 4,
54 	ADV7842_INP_COLOR_SPACE_XVYCC_709 = 5,
55 	ADV7842_INP_COLOR_SPACE_FULL_YCbCr_601 = 6,
56 	ADV7842_INP_COLOR_SPACE_FULL_YCbCr_709 = 7,
57 	ADV7842_INP_COLOR_SPACE_AUTO = 0xf,
58 };
59 
60 /* Select output format (IO register 0x03, [4:2]) */
61 enum adv7842_op_format_mode_sel {
62 	ADV7842_OP_FORMAT_MODE0 = 0x00,
63 	ADV7842_OP_FORMAT_MODE1 = 0x04,
64 	ADV7842_OP_FORMAT_MODE2 = 0x08,
65 };
66 
67 /* Mode of operation */
68 enum adv7842_mode {
69 	ADV7842_MODE_SDP,
70 	ADV7842_MODE_COMP,
71 	ADV7842_MODE_RGB,
72 	ADV7842_MODE_HDMI
73 };
74 
75 /* Video standard select (IO register 0x00, [5:0]) */
76 enum adv7842_vid_std_select {
77 	/* SDP */
78 	ADV7842_SDP_VID_STD_CVBS_SD_4x1 = 0x01,
79 	ADV7842_SDP_VID_STD_YC_SD4_x1 = 0x09,
80 	/* RGB */
81 	ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE = 0x07,
82 	/* HDMI GR */
83 	ADV7842_HDMI_GR_VID_STD_AUTO_GRAPH_MODE = 0x02,
84 	/* HDMI COMP */
85 	ADV7842_HDMI_COMP_VID_STD_HD_1250P = 0x1e,
86 };
87 
88 enum adv7842_select_input {
89 	ADV7842_SELECT_HDMI_PORT_A,
90 	ADV7842_SELECT_HDMI_PORT_B,
91 	ADV7842_SELECT_VGA_RGB,
92 	ADV7842_SELECT_VGA_COMP,
93 	ADV7842_SELECT_SDP_CVBS,
94 	ADV7842_SELECT_SDP_YC,
95 };
96 
97 enum adv7842_drive_strength {
98 	ADV7842_DR_STR_LOW = 0,
99 	ADV7842_DR_STR_MEDIUM_LOW = 1,
100 	ADV7842_DR_STR_MEDIUM_HIGH = 2,
101 	ADV7842_DR_STR_HIGH = 3,
102 };
103 
104 struct adv7842_sdp_csc_coeff {
105 	bool manual;
106 	u16 scaling;
107 	u16 A1;
108 	u16 A2;
109 	u16 A3;
110 	u16 A4;
111 	u16 B1;
112 	u16 B2;
113 	u16 B3;
114 	u16 B4;
115 	u16 C1;
116 	u16 C2;
117 	u16 C3;
118 	u16 C4;
119 };
120 
121 struct adv7842_sdp_io_sync_adjustment {
122 	bool adjust;
123 	u16 hs_beg;
124 	u16 hs_width;
125 	u16 de_beg;
126 	u16 de_end;
127 	u8 vs_beg_o;
128 	u8 vs_beg_e;
129 	u8 vs_end_o;
130 	u8 vs_end_e;
131 	u8 de_v_beg_o;
132 	u8 de_v_beg_e;
133 	u8 de_v_end_o;
134 	u8 de_v_end_e;
135 };
136 
137 /* Platform dependent definition */
138 struct adv7842_platform_data {
139 	/* chip reset during probe */
140 	unsigned chip_reset:1;
141 
142 	/* DIS_PWRDNB: 1 if the PWRDNB pin is unused and unconnected */
143 	unsigned disable_pwrdnb:1;
144 
145 	/* DIS_CABLE_DET_RST: 1 if the 5V pins are unused and unconnected */
146 	unsigned disable_cable_det_rst:1;
147 
148 	/* Analog input muxing mode */
149 	enum adv7842_ain_sel ain_sel;
150 
151 	/* Bus rotation and reordering */
152 	enum adv7842_bus_order bus_order;
153 
154 	/* Select output format mode */
155 	enum adv7842_op_format_mode_sel op_format_mode_sel;
156 
157 	/* Default mode */
158 	enum adv7842_mode mode;
159 
160 	/* Default input */
161 	unsigned input;
162 
163 	/* Video standard */
164 	enum adv7842_vid_std_select vid_std_select;
165 
166 	/* IO register 0x02 */
167 	unsigned alt_gamma:1;
168 
169 	/* IO register 0x05 */
170 	unsigned blank_data:1;
171 	unsigned insert_av_codes:1;
172 	unsigned replicate_av_codes:1;
173 
174 	/* IO register 0x30 */
175 	unsigned output_bus_lsb_to_msb:1;
176 
177 	/* IO register 0x14 */
178 	enum adv7842_drive_strength dr_str_data;
179 	enum adv7842_drive_strength dr_str_clk;
180 	enum adv7842_drive_strength dr_str_sync;
181 
182 	/*
183 	 * IO register 0x19: Adjustment to the LLC DLL phase in
184 	 * increments of 1/32 of a clock period.
185 	 */
186 	unsigned llc_dll_phase:5;
187 
188 	/* External RAM for 3-D comb or frame synchronizer */
189 	unsigned sd_ram_size; /* ram size in MB */
190 	unsigned sd_ram_ddr:1; /* ddr or sdr sdram */
191 
192 	/* HDMI free run, CP-reg 0xBA */
193 	unsigned hdmi_free_run_enable:1;
194 	/* 0 = Mode 0: run when there is no TMDS clock
195 	   1 = Mode 1: run when there is no TMDS clock or the
196 	       video resolution does not match programmed one. */
197 	unsigned hdmi_free_run_mode:1;
198 
199 	/* SDP free run, CP-reg 0xDD */
200 	unsigned sdp_free_run_auto:1;
201 	unsigned sdp_free_run_man_col_en:1;
202 	unsigned sdp_free_run_cbar_en:1;
203 	unsigned sdp_free_run_force:1;
204 
205 	/* HPA manual (0) or auto (1), affects HDMI register 0x69 */
206 	unsigned hpa_auto:1;
207 
208 	struct adv7842_sdp_csc_coeff sdp_csc_coeff;
209 
210 	struct adv7842_sdp_io_sync_adjustment sdp_io_sync_625;
211 	struct adv7842_sdp_io_sync_adjustment sdp_io_sync_525;
212 
213 	/* i2c addresses */
214 	u8 i2c_sdp_io;
215 	u8 i2c_sdp;
216 	u8 i2c_cp;
217 	u8 i2c_vdp;
218 	u8 i2c_afe;
219 	u8 i2c_hdmi;
220 	u8 i2c_repeater;
221 	u8 i2c_edid;
222 	u8 i2c_infoframe;
223 	u8 i2c_cec;
224 	u8 i2c_avlink;
225 };
226 
227 #define V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE	(V4L2_CID_DV_CLASS_BASE + 0x1000)
228 #define V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL	(V4L2_CID_DV_CLASS_BASE + 0x1001)
229 #define V4L2_CID_ADV_RX_FREE_RUN_COLOR		(V4L2_CID_DV_CLASS_BASE + 0x1002)
230 
231 /* custom ioctl, used to test the external RAM that's used by the
232  * deinterlacer. */
233 #define ADV7842_CMD_RAM_TEST _IO('V', BASE_VIDIOC_PRIVATE)
234 
235 #define ADV7842_EDID_PORT_A   0
236 #define ADV7842_EDID_PORT_B   1
237 #define ADV7842_EDID_PORT_VGA 2
238 #define ADV7842_PAD_SOURCE    3
239 
240 #endif
241