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1 | /* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics |
2 | * Digitizer with Horizontal PLL registers | |
3 | * | |
4 | * Copyright (C) 2009 Texas Instruments Inc | |
5 | * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com> | |
6 | * | |
7 | * This code is partially based upon the TVP5150 driver | |
8 | * written by Mauro Carvalho Chehab (mchehab@infradead.org), | |
9 | * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com> | |
10 | * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by | |
11 | * Muralidharan Karicheri and Snehaprabha Narnakaje (TI). | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | */ | |
27 | #include <linux/delay.h> | |
28 | #include <linux/i2c.h> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
0b675536 SNC |
30 | #include <linux/videodev2.h> |
31 | #include <media/tvp7002.h> | |
32 | #include <media/v4l2-device.h> | |
33 | #include <media/v4l2-chip-ident.h> | |
34 | #include <media/v4l2-common.h> | |
35 | #include "tvp7002_reg.h" | |
36 | ||
37 | MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); | |
38 | MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>"); | |
39 | MODULE_LICENSE("GPL"); | |
40 | ||
41 | /* Module Name */ | |
42 | #define TVP7002_MODULE_NAME "tvp7002" | |
43 | ||
44 | /* I2C retry attempts */ | |
45 | #define I2C_RETRY_COUNT (5) | |
46 | ||
47 | /* End of registers */ | |
48 | #define TVP7002_EOR 0x5c | |
49 | ||
50 | /* Read write definition for registers */ | |
51 | #define TVP7002_READ 0 | |
52 | #define TVP7002_WRITE 1 | |
53 | #define TVP7002_RESERVED 2 | |
54 | ||
55 | /* Interlaced vs progressive mask and shift */ | |
56 | #define TVP7002_IP_SHIFT 5 | |
57 | #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) | |
58 | ||
59 | /* Shift for CPL and LPF registers */ | |
60 | #define TVP7002_CL_SHIFT 8 | |
61 | #define TVP7002_CL_MASK 0x0f | |
62 | ||
63 | /* Debug functions */ | |
64 | static int debug; | |
65 | module_param(debug, bool, 0644); | |
66 | MODULE_PARM_DESC(debug, "Debug level (0-2)"); | |
67 | ||
68 | /* Structure for register values */ | |
69 | struct i2c_reg_value { | |
70 | u8 reg; | |
71 | u8 value; | |
72 | u8 type; | |
73 | }; | |
74 | ||
75 | /* | |
76 | * Register default values (according to tvp7002 datasheet) | |
77 | * In the case of read-only registers, the value (0xff) is | |
78 | * never written. R/W functionality is controlled by the | |
79 | * writable bit in the register struct definition. | |
80 | */ | |
81 | static const struct i2c_reg_value tvp7002_init_default[] = { | |
82 | { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, | |
83 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, | |
84 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, | |
85 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, | |
86 | { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, | |
87 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
88 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
89 | { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, | |
90 | { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, | |
91 | { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, | |
92 | { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, | |
93 | { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, | |
94 | { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, | |
95 | { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, | |
96 | { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, | |
97 | { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, | |
98 | { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, | |
99 | { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, | |
100 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, | |
101 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
102 | { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, | |
103 | { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, | |
104 | { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, | |
105 | { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, | |
106 | { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, | |
107 | { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, | |
108 | { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, | |
109 | { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, | |
110 | { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, | |
111 | { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, | |
112 | { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, | |
113 | { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, | |
114 | { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, | |
115 | { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, | |
116 | { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, | |
117 | { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, | |
118 | { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, | |
119 | { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, | |
120 | { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, | |
121 | { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, | |
122 | { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, | |
123 | { 0x29, 0x08, TVP7002_RESERVED }, | |
124 | { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, | |
125 | /* PWR_CTL is controlled only by the probe and reset functions */ | |
126 | { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, | |
127 | { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, | |
128 | { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, | |
129 | { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, | |
130 | { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, | |
131 | { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, | |
132 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
133 | { 0x32, 0x18, TVP7002_RESERVED }, | |
134 | { 0x33, 0x60, TVP7002_RESERVED }, | |
135 | { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, | |
136 | { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, | |
137 | { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, | |
138 | { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, | |
139 | { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, | |
140 | { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, | |
141 | { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, | |
142 | { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, | |
143 | { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, | |
144 | { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, | |
145 | { 0x3e, 0x60, TVP7002_RESERVED }, | |
146 | { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, | |
147 | { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, | |
148 | { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, | |
149 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, | |
150 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, | |
151 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, | |
152 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, | |
153 | { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, | |
154 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, | |
155 | { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, | |
156 | { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, | |
157 | { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, | |
158 | { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, | |
159 | { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, | |
160 | { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, | |
161 | { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, | |
162 | { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, | |
163 | { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, | |
164 | { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, | |
165 | { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, | |
166 | { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, | |
167 | { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, | |
168 | { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, | |
169 | { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, | |
170 | { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, | |
171 | { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, | |
172 | { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, | |
173 | { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, | |
174 | { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, | |
175 | /* This signals end of register values */ | |
176 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
177 | }; | |
178 | ||
179 | /* Register parameters for 480P */ | |
180 | static const struct i2c_reg_value tvp7002_parms_480P[] = { | |
181 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, | |
560afa7d | 182 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE }, |
0b675536 SNC |
183 | { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, |
184 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, | |
185 | { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, | |
186 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, | |
187 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, | |
188 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, | |
189 | { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, | |
190 | { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, | |
191 | { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, | |
192 | { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, | |
193 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, | |
194 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, | |
195 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, | |
196 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, | |
197 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, | |
198 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
199 | }; | |
200 | ||
201 | /* Register parameters for 576P */ | |
202 | static const struct i2c_reg_value tvp7002_parms_576P[] = { | |
203 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, | |
204 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, | |
205 | { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, | |
206 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, | |
207 | { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, | |
208 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, | |
209 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, | |
210 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, | |
211 | { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, | |
212 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, | |
213 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, | |
214 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, | |
215 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, | |
216 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, | |
217 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, | |
218 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, | |
219 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, | |
220 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
221 | }; | |
222 | ||
223 | /* Register parameters for 1080I60 */ | |
224 | static const struct i2c_reg_value tvp7002_parms_1080I60[] = { | |
225 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, | |
560afa7d | 226 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, |
0b675536 SNC |
227 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
228 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, | |
229 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, | |
230 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, | |
231 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, | |
232 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, | |
233 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, | |
234 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, | |
235 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, | |
236 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, | |
237 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
238 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
239 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
240 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, | |
241 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
242 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
243 | }; | |
244 | ||
245 | /* Register parameters for 1080P60 */ | |
246 | static const struct i2c_reg_value tvp7002_parms_1080P60[] = { | |
247 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, | |
560afa7d | 248 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, |
0b675536 SNC |
249 | { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, |
250 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, | |
251 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, | |
252 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, | |
253 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, | |
254 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, | |
255 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, | |
256 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, | |
257 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, | |
258 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, | |
259 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
260 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
261 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
262 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, | |
263 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
264 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
265 | }; | |
266 | ||
267 | /* Register parameters for 1080I50 */ | |
268 | static const struct i2c_reg_value tvp7002_parms_1080I50[] = { | |
269 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, | |
270 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, | |
271 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, | |
272 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, | |
273 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, | |
274 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, | |
275 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, | |
276 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, | |
277 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, | |
278 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, | |
279 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, | |
280 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, | |
281 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
282 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
283 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
284 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, | |
285 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
286 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
287 | }; | |
288 | ||
289 | /* Register parameters for 720P60 */ | |
290 | static const struct i2c_reg_value tvp7002_parms_720P60[] = { | |
291 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, | |
560afa7d | 292 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, |
0b675536 SNC |
293 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, |
294 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, | |
295 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, | |
296 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, | |
297 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, | |
298 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, | |
299 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, | |
300 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, | |
301 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, | |
302 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, | |
303 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
304 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
305 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
306 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, | |
307 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
308 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
309 | }; | |
310 | ||
311 | /* Register parameters for 720P50 */ | |
312 | static const struct i2c_reg_value tvp7002_parms_720P50[] = { | |
313 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, | |
560afa7d | 314 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE }, |
0b675536 SNC |
315 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
316 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, | |
317 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, | |
318 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, | |
319 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, | |
320 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, | |
321 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, | |
322 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, | |
323 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, | |
324 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, | |
325 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, | |
326 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, | |
327 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, | |
328 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, | |
329 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, | |
330 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } | |
331 | }; | |
332 | ||
0b675536 SNC |
333 | /* Preset definition for handling device operation */ |
334 | struct tvp7002_preset_definition { | |
335 | u32 preset; | |
336 | const struct i2c_reg_value *p_settings; | |
337 | enum v4l2_colorspace color_space; | |
338 | enum v4l2_field scanmode; | |
339 | u16 progressive; | |
340 | u16 lines_per_frame; | |
341 | u16 cpl_min; | |
342 | u16 cpl_max; | |
343 | }; | |
344 | ||
345 | /* Struct list for digital video presets */ | |
346 | static const struct tvp7002_preset_definition tvp7002_presets[] = { | |
347 | { | |
348 | V4L2_DV_720P60, | |
349 | tvp7002_parms_720P60, | |
350 | V4L2_COLORSPACE_REC709, | |
351 | V4L2_FIELD_NONE, | |
352 | 1, | |
353 | 0x2EE, | |
354 | 135, | |
355 | 153 | |
356 | }, | |
357 | { | |
358 | V4L2_DV_1080I60, | |
359 | tvp7002_parms_1080I60, | |
360 | V4L2_COLORSPACE_REC709, | |
361 | V4L2_FIELD_INTERLACED, | |
362 | 0, | |
363 | 0x465, | |
364 | 181, | |
365 | 205 | |
366 | }, | |
367 | { | |
368 | V4L2_DV_1080I50, | |
369 | tvp7002_parms_1080I50, | |
370 | V4L2_COLORSPACE_REC709, | |
371 | V4L2_FIELD_INTERLACED, | |
372 | 0, | |
373 | 0x465, | |
374 | 217, | |
375 | 245 | |
376 | }, | |
377 | { | |
378 | V4L2_DV_720P50, | |
379 | tvp7002_parms_720P50, | |
380 | V4L2_COLORSPACE_REC709, | |
381 | V4L2_FIELD_NONE, | |
382 | 1, | |
383 | 0x2EE, | |
384 | 163, | |
385 | 183 | |
386 | }, | |
387 | { | |
388 | V4L2_DV_1080P60, | |
389 | tvp7002_parms_1080P60, | |
390 | V4L2_COLORSPACE_REC709, | |
391 | V4L2_FIELD_NONE, | |
392 | 1, | |
393 | 0x465, | |
394 | 90, | |
395 | 102 | |
396 | }, | |
397 | { | |
398 | V4L2_DV_480P59_94, | |
399 | tvp7002_parms_480P, | |
400 | V4L2_COLORSPACE_SMPTE170M, | |
401 | V4L2_FIELD_NONE, | |
402 | 1, | |
403 | 0x20D, | |
404 | 0xffff, | |
405 | 0xffff | |
406 | }, | |
407 | { | |
408 | V4L2_DV_576P50, | |
409 | tvp7002_parms_576P, | |
410 | V4L2_COLORSPACE_SMPTE170M, | |
411 | V4L2_FIELD_NONE, | |
412 | 1, | |
413 | 0x271, | |
414 | 0xffff, | |
415 | 0xffff | |
416 | } | |
417 | }; | |
418 | ||
419 | #define NUM_PRESETS ARRAY_SIZE(tvp7002_presets) | |
420 | ||
421 | /* Device definition */ | |
422 | struct tvp7002 { | |
423 | struct v4l2_subdev sd; | |
424 | const struct tvp7002_config *pdata; | |
425 | ||
426 | int ver; | |
427 | int streaming; | |
428 | ||
0b675536 SNC |
429 | const struct tvp7002_preset_definition *current_preset; |
430 | u8 gain; | |
431 | }; | |
432 | ||
433 | /* | |
434 | * to_tvp7002 - Obtain device handler TVP7002 | |
435 | * @sd: ptr to v4l2_subdev struct | |
436 | * | |
437 | * Returns device handler tvp7002. | |
438 | */ | |
439 | static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) | |
440 | { | |
441 | return container_of(sd, struct tvp7002, sd); | |
442 | } | |
443 | ||
444 | /* | |
445 | * tvp7002_read - Read a value from a register in an TVP7002 | |
446 | * @sd: ptr to v4l2_subdev struct | |
6fa7dac4 | 447 | * @addr: TVP7002 register address |
0b675536 SNC |
448 | * @dst: pointer to 8-bit destination |
449 | * | |
450 | * Returns value read if successful, or non-zero (-1) otherwise. | |
451 | */ | |
452 | static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) | |
453 | { | |
454 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
455 | int retry; | |
456 | int error; | |
457 | ||
458 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { | |
459 | error = i2c_smbus_read_byte_data(c, addr); | |
460 | ||
461 | if (error >= 0) { | |
462 | *dst = (u8)error; | |
463 | return 0; | |
464 | } | |
465 | ||
466 | msleep_interruptible(10); | |
467 | } | |
468 | v4l2_err(sd, "TVP7002 read error %d\n", error); | |
469 | return error; | |
470 | } | |
471 | ||
472 | /* | |
473 | * tvp7002_read_err() - Read a register value with error code | |
474 | * @sd: pointer to standard V4L2 sub-device structure | |
475 | * @reg: destination register | |
476 | * @val: value to be read | |
6fa7dac4 | 477 | * @err: pointer to error value |
0b675536 SNC |
478 | * |
479 | * Read a value in a register and save error value in pointer. | |
480 | * Also update the register table if successful | |
481 | */ | |
482 | static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, | |
483 | u8 *dst, int *err) | |
484 | { | |
485 | if (!*err) | |
486 | *err = tvp7002_read(sd, reg, dst); | |
487 | } | |
488 | ||
489 | /* | |
490 | * tvp7002_write() - Write a value to a register in TVP7002 | |
491 | * @sd: ptr to v4l2_subdev struct | |
492 | * @addr: TVP7002 register address | |
493 | * @value: value to be written to the register | |
494 | * | |
495 | * Write a value to a register in an TVP7002 decoder device. | |
496 | * Returns zero if successful, or non-zero otherwise. | |
497 | */ | |
498 | static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) | |
499 | { | |
500 | struct i2c_client *c; | |
501 | int retry; | |
502 | int error; | |
503 | ||
504 | c = v4l2_get_subdevdata(sd); | |
505 | ||
506 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { | |
507 | error = i2c_smbus_write_byte_data(c, addr, value); | |
508 | ||
509 | if (error >= 0) | |
510 | return 0; | |
511 | ||
512 | v4l2_warn(sd, "Write: retry ... %d\n", retry); | |
513 | msleep_interruptible(10); | |
514 | } | |
515 | v4l2_err(sd, "TVP7002 write error %d\n", error); | |
516 | return error; | |
517 | } | |
518 | ||
519 | /* | |
520 | * tvp7002_write_err() - Write a register value with error code | |
521 | * @sd: pointer to standard V4L2 sub-device structure | |
522 | * @reg: destination register | |
523 | * @val: value to be written | |
6fa7dac4 | 524 | * @err: pointer to error value |
0b675536 SNC |
525 | * |
526 | * Write a value in a register and save error value in pointer. | |
527 | * Also update the register table if successful | |
528 | */ | |
529 | static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, | |
530 | u8 val, int *err) | |
531 | { | |
532 | if (!*err) | |
533 | *err = tvp7002_write(sd, reg, val); | |
534 | } | |
535 | ||
536 | /* | |
537 | * tvp7002_g_chip_ident() - Get chip identification number | |
538 | * @sd: ptr to v4l2_subdev struct | |
539 | * @chip: ptr to v4l2_dbg_chip_ident struct | |
540 | * | |
541 | * Obtains the chip's identification number. | |
542 | * Returns zero or -EINVAL if read operation fails. | |
543 | */ | |
544 | static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, | |
545 | struct v4l2_dbg_chip_ident *chip) | |
546 | { | |
547 | u8 rev; | |
548 | int error; | |
549 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
550 | ||
551 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev); | |
552 | ||
553 | if (error < 0) | |
554 | return error; | |
555 | ||
556 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev); | |
557 | } | |
558 | ||
559 | /* | |
560 | * tvp7002_write_inittab() - Write initialization values | |
561 | * @sd: ptr to v4l2_subdev struct | |
562 | * @regs: ptr to i2c_reg_value struct | |
563 | * | |
564 | * Write initialization values. | |
565 | * Returns zero or -EINVAL if read operation fails. | |
566 | */ | |
567 | static int tvp7002_write_inittab(struct v4l2_subdev *sd, | |
568 | const struct i2c_reg_value *regs) | |
569 | { | |
570 | int error = 0; | |
571 | ||
572 | /* Initialize the first (defined) registers */ | |
573 | while (TVP7002_EOR != regs->reg) { | |
574 | if (TVP7002_WRITE == regs->type) | |
575 | tvp7002_write_err(sd, regs->reg, regs->value, &error); | |
576 | regs++; | |
577 | } | |
578 | ||
579 | return error; | |
580 | } | |
581 | ||
582 | /* | |
583 | * tvp7002_s_dv_preset() - Set digital video preset | |
584 | * @sd: ptr to v4l2_subdev struct | |
6fa7dac4 | 585 | * @dv_preset: ptr to v4l2_dv_preset struct |
0b675536 SNC |
586 | * |
587 | * Set the digital video preset for a TVP7002 decoder device. | |
588 | * Returns zero when successful or -EINVAL if register access fails. | |
589 | */ | |
590 | static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, | |
591 | struct v4l2_dv_preset *dv_preset) | |
592 | { | |
593 | struct tvp7002 *device = to_tvp7002(sd); | |
594 | u32 preset; | |
595 | int i; | |
596 | ||
597 | for (i = 0; i < NUM_PRESETS; i++) { | |
598 | preset = tvp7002_presets[i].preset; | |
599 | if (preset == dv_preset->preset) { | |
600 | device->current_preset = &tvp7002_presets[i]; | |
601 | return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings); | |
602 | } | |
603 | } | |
604 | ||
605 | return -EINVAL; | |
606 | } | |
607 | ||
608 | /* | |
609 | * tvp7002_g_ctrl() - Get a control | |
610 | * @sd: ptr to v4l2_subdev struct | |
611 | * @ctrl: ptr to v4l2_control struct | |
612 | * | |
613 | * Get a control for a TVP7002 decoder device. | |
614 | * Returns zero when successful or -EINVAL if register access fails. | |
615 | */ | |
616 | static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
617 | { | |
618 | struct tvp7002 *device = to_tvp7002(sd); | |
619 | ||
620 | switch (ctrl->id) { | |
621 | case V4L2_CID_GAIN: | |
622 | ctrl->value = device->gain; | |
623 | return 0; | |
624 | default: | |
625 | return -EINVAL; | |
626 | } | |
627 | } | |
628 | ||
629 | /* | |
630 | * tvp7002_s_ctrl() - Set a control | |
631 | * @sd: ptr to v4l2_subdev struct | |
632 | * @ctrl: ptr to v4l2_control struct | |
633 | * | |
634 | * Set a control in TVP7002 decoder device. | |
635 | * Returns zero when successful or -EINVAL if register access fails. | |
636 | */ | |
637 | static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
638 | { | |
639 | struct tvp7002 *device = to_tvp7002(sd); | |
640 | int error = 0; | |
641 | ||
642 | switch (ctrl->id) { | |
643 | case V4L2_CID_GAIN: | |
644 | tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, | |
645 | ctrl->value & 0xff, &error); | |
646 | tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, | |
647 | ctrl->value & 0xff, &error); | |
648 | tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, | |
649 | ctrl->value & 0xff, &error); | |
650 | ||
651 | if (error < 0) | |
652 | return error; | |
653 | ||
654 | /* Set only after knowing there is no error */ | |
655 | device->gain = ctrl->value & 0xff; | |
656 | return 0; | |
657 | default: | |
658 | return -EINVAL; | |
659 | } | |
660 | } | |
661 | ||
662 | /* | |
663 | * tvp7002_queryctrl() - Query a control | |
664 | * @sd: ptr to v4l2_subdev struct | |
6fa7dac4 | 665 | * @qc: ptr to v4l2_queryctrl struct |
0b675536 SNC |
666 | * |
667 | * Query a control of a TVP7002 decoder device. | |
668 | * Returns zero when successful or -EINVAL if register read fails. | |
669 | */ | |
670 | static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) | |
671 | { | |
672 | switch (qc->id) { | |
673 | case V4L2_CID_GAIN: | |
674 | /* | |
675 | * Gain is supported [0-255, default=0, step=1] | |
676 | */ | |
677 | return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0); | |
678 | default: | |
679 | return -EINVAL; | |
680 | } | |
681 | } | |
682 | ||
db7b5460 HV |
683 | /* |
684 | * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt | |
685 | * @sd: pointer to standard V4L2 sub-device structure | |
686 | * @f: pointer to mediabus format structure | |
687 | * | |
688 | * Negotiate the image capture size and mediabus format. | |
689 | * There is only one possible format, so this single function works for | |
690 | * get, set and try. | |
691 | */ | |
692 | static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) | |
693 | { | |
694 | struct tvp7002 *device = to_tvp7002(sd); | |
695 | struct v4l2_dv_enum_preset e_preset; | |
696 | int error; | |
697 | ||
698 | /* Calculate height and width based on current standard */ | |
699 | error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset); | |
700 | if (error) | |
701 | return error; | |
702 | ||
703 | f->width = e_preset.width; | |
704 | f->height = e_preset.height; | |
705 | f->code = V4L2_MBUS_FMT_YUYV10_1X20; | |
706 | f->field = device->current_preset->scanmode; | |
707 | f->colorspace = device->current_preset->color_space; | |
708 | ||
709 | v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d", | |
710 | f->width, f->height); | |
711 | return 0; | |
712 | } | |
713 | ||
0b675536 SNC |
714 | /* |
715 | * tvp7002_query_dv_preset() - query DV preset | |
716 | * @sd: pointer to standard V4L2 sub-device structure | |
6fa7dac4 | 717 | * @qpreset: standard V4L2 v4l2_dv_preset structure |
0b675536 SNC |
718 | * |
719 | * Returns the current DV preset by TVP7002. If no active input is | |
720 | * detected, returns -EINVAL | |
721 | */ | |
722 | static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, | |
723 | struct v4l2_dv_preset *qpreset) | |
724 | { | |
725 | const struct tvp7002_preset_definition *presets = tvp7002_presets; | |
0b675536 SNC |
726 | struct tvp7002 *device; |
727 | u8 progressive; | |
728 | u32 lpfr; | |
729 | u32 cpln; | |
730 | int error = 0; | |
731 | u8 lpf_lsb; | |
732 | u8 lpf_msb; | |
733 | u8 cpl_lsb; | |
734 | u8 cpl_msb; | |
735 | int index; | |
736 | ||
737 | device = to_tvp7002(sd); | |
738 | ||
739 | /* Read standards from device registers */ | |
740 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); | |
741 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); | |
742 | ||
743 | if (error < 0) | |
744 | return error; | |
745 | ||
746 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); | |
747 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); | |
748 | ||
749 | if (error < 0) | |
750 | return error; | |
751 | ||
752 | /* Get lines per frame, clocks per line and interlaced/progresive */ | |
753 | lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT); | |
754 | cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); | |
755 | progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; | |
756 | ||
757 | /* Do checking of video modes */ | |
758 | for (index = 0; index < NUM_PRESETS; index++, presets++) | |
759 | if (lpfr == presets->lines_per_frame && | |
760 | progressive == presets->progressive) { | |
761 | if (presets->cpl_min == 0xffff) | |
762 | break; | |
763 | if (cpln >= presets->cpl_min && cpln <= presets->cpl_max) | |
764 | break; | |
765 | } | |
766 | ||
767 | if (index == NUM_PRESETS) { | |
cf19cd3d | 768 | v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n", |
0b675536 | 769 | lpfr, cpln); |
cf19cd3d HV |
770 | /* Could not detect a signal, so return the 'invalid' preset */ |
771 | qpreset->preset = V4L2_DV_INVALID; | |
772 | return 0; | |
0b675536 SNC |
773 | } |
774 | ||
0b675536 SNC |
775 | /* Set values in found preset */ |
776 | qpreset->preset = presets->preset; | |
777 | ||
778 | /* Update lines per frame and clocks per line info */ | |
cf19cd3d | 779 | v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset); |
0b675536 SNC |
780 | return 0; |
781 | } | |
782 | ||
783 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
784 | /* | |
785 | * tvp7002_g_register() - Get the value of a register | |
786 | * @sd: ptr to v4l2_subdev struct | |
6fa7dac4 | 787 | * @reg: ptr to v4l2_dbg_register struct |
0b675536 SNC |
788 | * |
789 | * Get the value of a TVP7002 decoder device register. | |
790 | * Returns zero when successful, -EINVAL if register read fails or | |
791 | * access to I2C client fails, -EPERM if the call is not allowed | |
792 | * by diabled CAP_SYS_ADMIN. | |
793 | */ | |
794 | static int tvp7002_g_register(struct v4l2_subdev *sd, | |
795 | struct v4l2_dbg_register *reg) | |
796 | { | |
797 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
dfbd5d4d HV |
798 | u8 val; |
799 | int ret; | |
0b675536 SNC |
800 | |
801 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
802 | return -EINVAL; | |
803 | if (!capable(CAP_SYS_ADMIN)) | |
804 | return -EPERM; | |
805 | ||
dfbd5d4d HV |
806 | ret = tvp7002_read(sd, reg->reg & 0xff, &val); |
807 | reg->val = val; | |
808 | return ret; | |
0b675536 SNC |
809 | } |
810 | ||
811 | /* | |
812 | * tvp7002_s_register() - set a control | |
813 | * @sd: ptr to v4l2_subdev struct | |
6fa7dac4 | 814 | * @reg: ptr to v4l2_dbg_register struct |
0b675536 SNC |
815 | * |
816 | * Get the value of a TVP7002 decoder device register. | |
817 | * Returns zero when successful, -EINVAL if register read fails or | |
818 | * -EPERM if call not allowed. | |
819 | */ | |
820 | static int tvp7002_s_register(struct v4l2_subdev *sd, | |
821 | struct v4l2_dbg_register *reg) | |
822 | { | |
823 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
0b675536 SNC |
824 | |
825 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
826 | return -EINVAL; | |
827 | if (!capable(CAP_SYS_ADMIN)) | |
828 | return -EPERM; | |
829 | ||
dfbd5d4d | 830 | return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); |
0b675536 SNC |
831 | } |
832 | #endif | |
833 | ||
db7b5460 HV |
834 | /* |
835 | * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats | |
836 | * @sd: pointer to standard V4L2 sub-device structure | |
837 | * @index: format index | |
838 | * @code: pointer to mediabus format | |
839 | * | |
840 | * Enumerate supported mediabus formats. | |
841 | */ | |
842 | ||
843 | static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, | |
844 | enum v4l2_mbus_pixelcode *code) | |
845 | { | |
846 | /* Check requested format index is within range */ | |
847 | if (index) | |
848 | return -EINVAL; | |
849 | *code = V4L2_MBUS_FMT_YUYV10_1X20; | |
850 | return 0; | |
851 | } | |
852 | ||
0b675536 SNC |
853 | /* |
854 | * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream | |
855 | * @sd: pointer to standard V4L2 sub-device structure | |
856 | * @enable: streaming enable or disable | |
857 | * | |
858 | * Sets streaming to enable or disable, if possible. | |
859 | */ | |
860 | static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) | |
861 | { | |
862 | struct tvp7002 *device = to_tvp7002(sd); | |
863 | int error = 0; | |
864 | ||
865 | if (device->streaming == enable) | |
866 | return 0; | |
867 | ||
868 | if (enable) { | |
869 | /* Set output state on (low impedance means stream on) */ | |
870 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00); | |
871 | device->streaming = enable; | |
872 | } else { | |
873 | /* Set output state off (high impedance means stream off) */ | |
874 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03); | |
875 | if (error) | |
876 | v4l2_dbg(1, debug, sd, "Unable to stop streaming\n"); | |
877 | ||
878 | device->streaming = enable; | |
879 | } | |
880 | ||
881 | return error; | |
882 | } | |
883 | ||
884 | /* | |
885 | * tvp7002_log_status() - Print information about register settings | |
886 | * @sd: ptr to v4l2_subdev struct | |
887 | * | |
888 | * Log register values of a TVP7002 decoder device. | |
889 | * Returns zero or -EINVAL if read operation fails. | |
890 | */ | |
891 | static int tvp7002_log_status(struct v4l2_subdev *sd) | |
892 | { | |
893 | const struct tvp7002_preset_definition *presets = tvp7002_presets; | |
894 | struct tvp7002 *device = to_tvp7002(sd); | |
895 | struct v4l2_dv_enum_preset e_preset; | |
896 | struct v4l2_dv_preset detected; | |
897 | int i; | |
898 | ||
899 | detected.preset = V4L2_DV_INVALID; | |
900 | /* Find my current standard*/ | |
901 | tvp7002_query_dv_preset(sd, &detected); | |
902 | ||
903 | /* Print standard related code values */ | |
904 | for (i = 0; i < NUM_PRESETS; i++, presets++) | |
905 | if (presets->preset == detected.preset) | |
906 | break; | |
907 | ||
908 | if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset)) | |
909 | return -EINVAL; | |
910 | ||
911 | v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name); | |
912 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); | |
913 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); | |
914 | if (i == NUM_PRESETS) { | |
915 | v4l2_info(sd, "Detected DV Preset: None\n"); | |
916 | } else { | |
917 | if (v4l_fill_dv_preset_info(presets->preset, &e_preset)) | |
918 | return -EINVAL; | |
919 | v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name); | |
920 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); | |
921 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); | |
922 | } | |
923 | v4l2_info(sd, "Streaming enabled: %s\n", | |
924 | device->streaming ? "yes" : "no"); | |
925 | ||
926 | /* Print the current value of the gain control */ | |
927 | v4l2_info(sd, "Gain: %u\n", device->gain); | |
928 | ||
929 | return 0; | |
930 | } | |
931 | ||
37eb4464 MR |
932 | /* |
933 | * tvp7002_enum_dv_presets() - Enum supported digital video formats | |
934 | * @sd: pointer to standard V4L2 sub-device structure | |
935 | * @preset: pointer to format struct | |
936 | * | |
937 | * Enumerate supported digital video formats. | |
938 | */ | |
939 | static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd, | |
940 | struct v4l2_dv_enum_preset *preset) | |
941 | { | |
942 | /* Check requested format index is within range */ | |
943 | if (preset->index >= NUM_PRESETS) | |
944 | return -EINVAL; | |
945 | ||
946 | return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset); | |
947 | } | |
948 | ||
0b675536 SNC |
949 | /* V4L2 core operation handlers */ |
950 | static const struct v4l2_subdev_core_ops tvp7002_core_ops = { | |
951 | .g_chip_ident = tvp7002_g_chip_ident, | |
952 | .log_status = tvp7002_log_status, | |
953 | .g_ctrl = tvp7002_g_ctrl, | |
954 | .s_ctrl = tvp7002_s_ctrl, | |
955 | .queryctrl = tvp7002_queryctrl, | |
956 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
957 | .g_register = tvp7002_g_register, | |
958 | .s_register = tvp7002_s_register, | |
959 | #endif | |
960 | }; | |
961 | ||
962 | /* Specific video subsystem operation handlers */ | |
963 | static const struct v4l2_subdev_video_ops tvp7002_video_ops = { | |
37eb4464 | 964 | .enum_dv_presets = tvp7002_enum_dv_presets, |
0b675536 SNC |
965 | .s_dv_preset = tvp7002_s_dv_preset, |
966 | .query_dv_preset = tvp7002_query_dv_preset, | |
967 | .s_stream = tvp7002_s_stream, | |
db7b5460 HV |
968 | .g_mbus_fmt = tvp7002_mbus_fmt, |
969 | .try_mbus_fmt = tvp7002_mbus_fmt, | |
970 | .s_mbus_fmt = tvp7002_mbus_fmt, | |
971 | .enum_mbus_fmt = tvp7002_enum_mbus_fmt, | |
0b675536 SNC |
972 | }; |
973 | ||
974 | /* V4L2 top level operation handlers */ | |
975 | static const struct v4l2_subdev_ops tvp7002_ops = { | |
976 | .core = &tvp7002_core_ops, | |
977 | .video = &tvp7002_video_ops, | |
978 | }; | |
979 | ||
980 | static struct tvp7002 tvp7002_dev = { | |
981 | .streaming = 0, | |
0b675536 SNC |
982 | .current_preset = tvp7002_presets, |
983 | .gain = 0, | |
984 | }; | |
985 | ||
986 | /* | |
987 | * tvp7002_probe - Probe a TVP7002 device | |
6fa7dac4 MR |
988 | * @c: ptr to i2c_client struct |
989 | * @id: ptr to i2c_device_id struct | |
0b675536 SNC |
990 | * |
991 | * Initialize the TVP7002 device | |
992 | * Returns zero when successful, -EINVAL if register read fails or | |
993 | * -EIO if i2c access is not available. | |
994 | */ | |
995 | static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) | |
996 | { | |
997 | struct v4l2_subdev *sd; | |
998 | struct tvp7002 *device; | |
999 | struct v4l2_dv_preset preset; | |
1000 | int polarity_a; | |
1001 | int polarity_b; | |
1002 | u8 revision; | |
1003 | ||
1004 | int error; | |
1005 | ||
1006 | /* Check if the adapter supports the needed features */ | |
1007 | if (!i2c_check_functionality(c->adapter, | |
1008 | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) | |
1009 | return -EIO; | |
1010 | ||
1011 | if (!c->dev.platform_data) { | |
1012 | v4l_err(c, "No platform data!!\n"); | |
1013 | return -ENODEV; | |
1014 | } | |
1015 | ||
1016 | device = kmalloc(sizeof(struct tvp7002), GFP_KERNEL); | |
1017 | ||
1018 | if (!device) | |
1019 | return -ENOMEM; | |
1020 | ||
1021 | *device = tvp7002_dev; | |
1022 | sd = &device->sd; | |
1023 | device->pdata = c->dev.platform_data; | |
1024 | ||
1025 | /* Tell v4l2 the device is ready */ | |
1026 | v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); | |
1027 | v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", | |
1028 | c->addr, c->adapter->name); | |
1029 | ||
1030 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); | |
1031 | if (error < 0) | |
1032 | goto found_error; | |
1033 | ||
1034 | /* Get revision number */ | |
1035 | v4l2_info(sd, "Rev. %02x detected.\n", revision); | |
1036 | if (revision != 0x02) | |
1037 | v4l2_info(sd, "Unknown revision detected.\n"); | |
1038 | ||
1039 | /* Initializes TVP7002 to its default values */ | |
1040 | error = tvp7002_write_inittab(sd, tvp7002_init_default); | |
1041 | ||
1042 | if (error < 0) | |
1043 | goto found_error; | |
1044 | ||
1045 | /* Set polarity information after registers have been set */ | |
1046 | polarity_a = 0x20 | device->pdata->hs_polarity << 5 | |
1047 | | device->pdata->vs_polarity << 2; | |
1048 | error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); | |
1049 | if (error < 0) | |
1050 | goto found_error; | |
1051 | ||
1052 | polarity_b = 0x01 | device->pdata->fid_polarity << 2 | |
1053 | | device->pdata->sog_polarity << 1 | |
1054 | | device->pdata->clk_polarity; | |
1055 | error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); | |
1056 | if (error < 0) | |
1057 | goto found_error; | |
1058 | ||
1059 | /* Set registers according to default video mode */ | |
1060 | preset.preset = device->current_preset->preset; | |
1061 | error = tvp7002_s_dv_preset(sd, &preset); | |
1062 | ||
1063 | found_error: | |
1064 | if (error < 0) | |
1065 | kfree(device); | |
1066 | ||
1067 | return error; | |
1068 | } | |
1069 | ||
1070 | /* | |
1071 | * tvp7002_remove - Remove TVP7002 device support | |
1072 | * @c: ptr to i2c_client struct | |
1073 | * | |
1074 | * Reset the TVP7002 device | |
1075 | * Returns zero. | |
1076 | */ | |
1077 | static int tvp7002_remove(struct i2c_client *c) | |
1078 | { | |
1079 | struct v4l2_subdev *sd = i2c_get_clientdata(c); | |
1080 | struct tvp7002 *device = to_tvp7002(sd); | |
1081 | ||
1082 | v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" | |
1083 | "on address 0x%x\n", c->addr); | |
1084 | ||
1085 | v4l2_device_unregister_subdev(sd); | |
1086 | kfree(device); | |
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | /* I2C Device ID table */ | |
1091 | static const struct i2c_device_id tvp7002_id[] = { | |
1092 | { "tvp7002", 0 }, | |
1093 | { } | |
1094 | }; | |
1095 | MODULE_DEVICE_TABLE(i2c, tvp7002_id); | |
1096 | ||
1097 | /* I2C driver data */ | |
1098 | static struct i2c_driver tvp7002_driver = { | |
1099 | .driver = { | |
1100 | .owner = THIS_MODULE, | |
1101 | .name = TVP7002_MODULE_NAME, | |
1102 | }, | |
1103 | .probe = tvp7002_probe, | |
1104 | .remove = tvp7002_remove, | |
1105 | .id_table = tvp7002_id, | |
1106 | }; | |
1107 | ||
1108 | /* | |
1109 | * tvp7002_init - Initialize driver via I2C interface | |
1110 | * | |
1111 | * Register the TVP7002 driver. | |
1112 | * Return 0 on success or error code on failure. | |
1113 | */ | |
1114 | static int __init tvp7002_init(void) | |
1115 | { | |
1116 | return i2c_add_driver(&tvp7002_driver); | |
1117 | } | |
1118 | ||
1119 | /* | |
1120 | * tvp7002_exit - Remove driver via I2C interface | |
1121 | * | |
1122 | * Unregister the TVP7002 driver. | |
1123 | * Returns nothing. | |
1124 | */ | |
1125 | static void __exit tvp7002_exit(void) | |
1126 | { | |
1127 | i2c_del_driver(&tvp7002_driver); | |
1128 | } | |
1129 | ||
1130 | module_init(tvp7002_init); | |
1131 | module_exit(tvp7002_exit); |