blob: 33205d7537d8f59524edb2dc617f54468f642785 [file] [log] [blame]
Mauro Carvalho Chehabd56410e2006-03-25 09:19:53 -03001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * vpx3220a, vpx3216b & vpx3214c video decoder driver version 0.0.1
3 *
4 * Copyright (C) 2001 Laurent Pinchart <lpinchart@freegates.be>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21#include <linux/module.h>
22#include <linux/init.h>
23#include <linux/delay.h>
24#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include <asm/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/i2c.h>
Hans Verkuil107063c2009-02-18 17:26:06 -030027#include <linux/videodev2.h>
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030028#include <media/v4l2-device.h>
29#include <media/v4l2-chip-ident.h>
Hans Verkuil2d266982009-02-19 17:41:19 -030030#include <media/v4l2-i2c-drv.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Hans Verkuil23848b62008-09-07 08:01:39 -030032MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver");
33MODULE_AUTHOR("Laurent Pinchart");
34MODULE_LICENSE("GPL");
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
Douglas Schilling Landgrafff699e62008-04-22 14:41:48 -030036static int debug;
Linus Torvalds1da177e2005-04-16 15:20:36 -070037module_param(debug, int, 0);
38MODULE_PARM_DESC(debug, "Debug level (0-1)");
39
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030040
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#define VPX_TIMEOUT_COUNT 10
42
43/* ----------------------------------------------------------------------- */
44
45struct vpx3220 {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030046 struct v4l2_subdev sd;
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 unsigned char reg[255];
48
Hans Verkuil107063c2009-02-18 17:26:06 -030049 v4l2_std_id norm;
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030050 int ident;
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 int input;
52 int enable;
53 int bright;
54 int contrast;
55 int hue;
56 int sat;
57};
58
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030059static inline struct vpx3220 *to_vpx3220(struct v4l2_subdev *sd)
60{
61 return container_of(sd, struct vpx3220, sd);
62}
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064static char *inputs[] = { "internal", "composite", "svideo" };
65
66/* ----------------------------------------------------------------------- */
Hans Verkuil23848b62008-09-07 08:01:39 -030067
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030068static inline int vpx3220_write(struct v4l2_subdev *sd, u8 reg, u8 value)
Linus Torvalds1da177e2005-04-16 15:20:36 -070069{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030070 struct i2c_client *client = v4l2_get_subdevdata(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 struct vpx3220 *decoder = i2c_get_clientdata(client);
72
73 decoder->reg[reg] = value;
74 return i2c_smbus_write_byte_data(client, reg, value);
75}
76
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030077static inline int vpx3220_read(struct v4l2_subdev *sd, u8 reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070078{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030079 struct i2c_client *client = v4l2_get_subdevdata(sd);
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 return i2c_smbus_read_byte_data(client, reg);
82}
83
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030084static int vpx3220_fp_status(struct v4l2_subdev *sd)
Linus Torvalds1da177e2005-04-16 15:20:36 -070085{
86 unsigned char status;
87 unsigned int i;
88
89 for (i = 0; i < VPX_TIMEOUT_COUNT; i++) {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -030090 status = vpx3220_read(sd, 0x29);
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92 if (!(status & 4))
93 return 0;
94
95 udelay(10);
96
97 if (need_resched())
98 cond_resched();
99 }
100
101 return -1;
102}
103
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300104static int vpx3220_fp_write(struct v4l2_subdev *sd, u8 fpaddr, u16 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300106 struct i2c_client *client = v4l2_get_subdevdata(sd);
107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 /* Write the 16-bit address to the FPWR register */
109 if (i2c_smbus_write_word_data(client, 0x27, swab16(fpaddr)) == -1) {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300110 v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 return -1;
112 }
113
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300114 if (vpx3220_fp_status(sd) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 return -1;
116
117 /* Write the 16-bit data to the FPDAT register */
118 if (i2c_smbus_write_word_data(client, 0x28, swab16(data)) == -1) {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300119 v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 return -1;
121 }
122
123 return 0;
124}
125
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300126static u16 vpx3220_fp_read(struct v4l2_subdev *sd, u16 fpaddr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300128 struct i2c_client *client = v4l2_get_subdevdata(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 s16 data;
130
131 /* Write the 16-bit address to the FPRD register */
132 if (i2c_smbus_write_word_data(client, 0x26, swab16(fpaddr)) == -1) {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300133 v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 return -1;
135 }
136
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300137 if (vpx3220_fp_status(sd) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 return -1;
139
140 /* Read the 16-bit data from the FPDAT register */
141 data = i2c_smbus_read_word_data(client, 0x28);
142 if (data == -1) {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300143 v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 return -1;
145 }
146
147 return swab16(data);
148}
149
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300150static int vpx3220_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151{
152 u8 reg;
153 int ret = -1;
154
155 while (len >= 2) {
156 reg = *data++;
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300157 ret = vpx3220_write(sd, reg, *data++);
Hans Verkuil23848b62008-09-07 08:01:39 -0300158 if (ret < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 break;
160 len -= 2;
161 }
162
163 return ret;
164}
165
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300166static int vpx3220_write_fp_block(struct v4l2_subdev *sd,
Hans Verkuil23848b62008-09-07 08:01:39 -0300167 const u16 *data, unsigned int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168{
169 u8 reg;
170 int ret = 0;
171
172 while (len > 1) {
173 reg = *data++;
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300174 ret |= vpx3220_fp_write(sd, reg, *data++);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 len -= 2;
176 }
177
178 return ret;
179}
180
181/* ---------------------------------------------------------------------- */
182
183static const unsigned short init_ntsc[] = {
184 0x1c, 0x00, /* NTSC tint angle */
185 0x88, 17, /* Window 1 vertical */
186 0x89, 240, /* Vertical lines in */
187 0x8a, 240, /* Vertical lines out */
188 0x8b, 000, /* Horizontal begin */
189 0x8c, 640, /* Horizontal length */
190 0x8d, 640, /* Number of pixels */
191 0x8f, 0xc00, /* Disable window 2 */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700192 0xf0, 0x73, /* 13.5 MHz transport, Forced
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 * mode, latch windows */
194 0xf2, 0x13, /* NTSC M, composite input */
195 0xe7, 0x1e1, /* Enable vertical standard
196 * locking @ 240 lines */
197};
198
199static const unsigned short init_pal[] = {
200 0x88, 23, /* Window 1 vertical begin */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700201 0x89, 288, /* Vertical lines in (16 lines
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 * skipped by the VFE) */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700203 0x8a, 288, /* Vertical lines out (16 lines
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 * skipped by the VFE) */
205 0x8b, 16, /* Horizontal begin */
206 0x8c, 768, /* Horizontal length */
207 0x8d, 784, /* Number of pixels
208 * Must be >= Horizontal begin + Horizontal length */
209 0x8f, 0xc00, /* Disable window 2 */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700210 0xf0, 0x77, /* 13.5 MHz transport, Forced
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 * mode, latch windows */
212 0xf2, 0x3d1, /* PAL B,G,H,I, composite input */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700213 0xe7, 0x241, /* PAL/SECAM set to 288 lines */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214};
215
216static const unsigned short init_secam[] = {
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700217 0x88, 23, /* Window 1 vertical begin */
218 0x89, 288, /* Vertical lines in (16 lines
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 * skipped by the VFE) */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700220 0x8a, 288, /* Vertical lines out (16 lines
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 * skipped by the VFE) */
222 0x8b, 16, /* Horizontal begin */
223 0x8c, 768, /* Horizontal length */
224 0x8d, 784, /* Number of pixels
225 * Must be >= Horizontal begin + Horizontal length */
226 0x8f, 0xc00, /* Disable window 2 */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700227 0xf0, 0x77, /* 13.5 MHz transport, Forced
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 * mode, latch windows */
229 0xf2, 0x3d5, /* SECAM, composite input */
Ronald S. Bultje9b3acc22005-10-16 20:29:24 -0700230 0xe7, 0x241, /* PAL/SECAM set to 288 lines */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231};
232
233static const unsigned char init_common[] = {
234 0xf2, 0x00, /* Disable all outputs */
235 0x33, 0x0d, /* Luma : VIN2, Chroma : CIN
236 * (clamp off) */
237 0xd8, 0xa8, /* HREF/VREF active high, VREF
238 * pulse = 2, Odd/Even flag */
239 0x20, 0x03, /* IF compensation 0dB/oct */
240 0xe0, 0xff, /* Open up all comparators */
241 0xe1, 0x00,
242 0xe2, 0x7f,
243 0xe3, 0x80,
244 0xe4, 0x7f,
245 0xe5, 0x80,
246 0xe6, 0x00, /* Brightness set to 0 */
247 0xe7, 0xe0, /* Contrast to 1.0, noise shaping
248 * 10 to 8 2-bit error diffusion */
249 0xe8, 0xf8, /* YUV422, CbCr binary offset,
250 * ... (p.32) */
251 0xea, 0x18, /* LLC2 connected, output FIFO
252 * reset with VACTintern */
253 0xf0, 0x8a, /* Half full level to 10, bus
254 * shuffler [7:0, 23:16, 15:8] */
255 0xf1, 0x18, /* Single clock, sync mode, no
256 * FE delay, no HLEN counter */
257 0xf8, 0x12, /* Port A, PIXCLK, HF# & FE#
258 * strength to 2 */
259 0xf9, 0x24, /* Port B, HREF, VREF, PREF &
260 * ALPHA strength to 4 */
261};
262
263static const unsigned short init_fp[] = {
264 0x59, 0,
265 0xa0, 2070, /* ACC reference */
266 0xa3, 0,
267 0xa4, 0,
268 0xa8, 30,
269 0xb2, 768,
270 0xbe, 27,
271 0x58, 0,
272 0x26, 0,
273 0x4b, 0x298, /* PLL gain */
274};
275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300277static int vpx3220_init(struct v4l2_subdev *sd, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300279 struct vpx3220 *decoder = to_vpx3220(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300281 vpx3220_write_block(sd, init_common, sizeof(init_common));
282 vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1);
283 if (decoder->norm & V4L2_STD_NTSC)
284 vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1);
285 else if (decoder->norm & V4L2_STD_PAL)
286 vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
287 else if (decoder->norm & V4L2_STD_SECAM)
288 vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1);
289 else
290 vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
291 return 0;
292}
293
294static int vpx3220_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
295{
296 int res = V4L2_IN_ST_NO_SIGNAL, status;
297 v4l2_std_id std = 0;
298
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300299 status = vpx3220_fp_read(sd, 0x0f3);
300
301 v4l2_dbg(1, debug, sd, "status: 0x%04x\n", status);
302
303 if (status < 0)
304 return status;
305
306 if ((status & 0x20) == 0) {
307 res = 0;
308
309 switch (status & 0x18) {
310 case 0x00:
311 case 0x10:
312 case 0x14:
313 case 0x18:
314 std = V4L2_STD_PAL;
315 break;
316
317 case 0x08:
318 std = V4L2_STD_SECAM;
319 break;
320
321 case 0x04:
322 case 0x0c:
323 case 0x1c:
324 std = V4L2_STD_NTSC;
325 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 }
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300327 }
328 if (pstd)
329 *pstd = std;
330 if (pstatus)
331 *pstatus = status;
332 return 0;
333}
334
335static int vpx3220_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
336{
Hans Verkuilbccfa442009-03-30 06:55:27 -0300337 v4l2_dbg(1, debug, sd, "querystd\n");
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300338 return vpx3220_status(sd, NULL, std);
339}
340
341static int vpx3220_g_input_status(struct v4l2_subdev *sd, u32 *status)
342{
Hans Verkuilbccfa442009-03-30 06:55:27 -0300343 v4l2_dbg(1, debug, sd, "g_input_status\n");
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300344 return vpx3220_status(sd, status, NULL);
345}
346
347static int vpx3220_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
348{
349 struct vpx3220 *decoder = to_vpx3220(sd);
350 int temp_input;
351
352 /* Here we back up the input selection because it gets
353 overwritten when we fill the registers with the
354 choosen video norm */
355 temp_input = vpx3220_fp_read(sd, 0xf2);
356
Hans Verkuilbccfa442009-03-30 06:55:27 -0300357 v4l2_dbg(1, debug, sd, "s_std %llx\n", (unsigned long long)std);
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300358 if (std & V4L2_STD_NTSC) {
359 vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1);
360 v4l2_dbg(1, debug, sd, "norm switched to NTSC\n");
361 } else if (std & V4L2_STD_PAL) {
362 vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
363 v4l2_dbg(1, debug, sd, "norm switched to PAL\n");
364 } else if (std & V4L2_STD_SECAM) {
365 vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1);
366 v4l2_dbg(1, debug, sd, "norm switched to SECAM\n");
367 } else {
368 return -EINVAL;
Hans Verkuil23848b62008-09-07 08:01:39 -0300369 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300371 decoder->norm = std;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300373 /* And here we set the backed up video input again */
374 vpx3220_fp_write(sd, 0xf2, temp_input | 0x0010);
375 udelay(10);
376 return 0;
377}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
Hans Verkuil5325b422009-04-02 11:26:22 -0300379static int vpx3220_s_routing(struct v4l2_subdev *sd,
380 u32 input, u32 output, u32 config)
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300381{
382 int data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383
Hans Verkuil5325b422009-04-02 11:26:22 -0300384 /* RJ: input = 0: ST8 (PCTV) input
385 input = 1: COMPOSITE input
386 input = 2: SVHS input */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
Hans Verkuil5325b422009-04-02 11:26:22 -0300388 const int input_vals[3][2] = {
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300389 {0x0c, 0},
390 {0x0d, 0},
391 {0x0e, 1}
392 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393
Roel Kluinf14a2972009-10-23 07:59:42 -0300394 if (input > 2)
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300395 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Hans Verkuil5325b422009-04-02 11:26:22 -0300397 v4l2_dbg(1, debug, sd, "input switched to %s\n", inputs[input]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
Hans Verkuil5325b422009-04-02 11:26:22 -0300399 vpx3220_write(sd, 0x33, input_vals[input][0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300401 data = vpx3220_fp_read(sd, 0xf2) & ~(0x0020);
402 if (data < 0)
403 return data;
404 /* 0x0010 is required to latch the setting */
405 vpx3220_fp_write(sd, 0xf2,
Hans Verkuil5325b422009-04-02 11:26:22 -0300406 data | (input_vals[input][1] << 5) | 0x0010);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300408 udelay(10);
409 return 0;
410}
411
412static int vpx3220_s_stream(struct v4l2_subdev *sd, int enable)
413{
Hans Verkuilbccfa442009-03-30 06:55:27 -0300414 v4l2_dbg(1, debug, sd, "s_stream %s\n", enable ? "on" : "off");
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300415
416 vpx3220_write(sd, 0xf2, (enable ? 0x1b : 0x00));
417 return 0;
418}
419
420static int vpx3220_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
421{
422 switch (qc->id) {
423 case V4L2_CID_BRIGHTNESS:
424 v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 break;
426
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300427 case V4L2_CID_CONTRAST:
428 v4l2_ctrl_query_fill(qc, 0, 63, 1, 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 break;
430
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300431 case V4L2_CID_SATURATION:
432 v4l2_ctrl_query_fill(qc, 0, 4095, 1, 2048);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 break;
434
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300435 case V4L2_CID_HUE:
436 v4l2_ctrl_query_fill(qc, -512, 511, 1, 0);
Hans Verkuil107063c2009-02-18 17:26:06 -0300437 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
439 default:
440 return -EINVAL;
441 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 return 0;
443}
444
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300445static int vpx3220_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300447 struct vpx3220 *decoder = to_vpx3220(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300449 switch (ctrl->id) {
450 case V4L2_CID_BRIGHTNESS:
451 ctrl->value = decoder->bright;
452 break;
453 case V4L2_CID_CONTRAST:
454 ctrl->value = decoder->contrast;
455 break;
456 case V4L2_CID_SATURATION:
457 ctrl->value = decoder->sat;
458 break;
459 case V4L2_CID_HUE:
460 ctrl->value = decoder->hue;
461 break;
462 default:
463 return -EINVAL;
464 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 return 0;
466}
467
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300468static int vpx3220_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
469{
470 struct vpx3220 *decoder = to_vpx3220(sd);
471
472 switch (ctrl->id) {
473 case V4L2_CID_BRIGHTNESS:
474 if (decoder->bright != ctrl->value) {
475 decoder->bright = ctrl->value;
476 vpx3220_write(sd, 0xe6, decoder->bright);
477 }
478 break;
479 case V4L2_CID_CONTRAST:
480 if (decoder->contrast != ctrl->value) {
481 /* Bit 7 and 8 is for noise shaping */
482 decoder->contrast = ctrl->value;
483 vpx3220_write(sd, 0xe7, decoder->contrast + 192);
484 }
485 break;
486 case V4L2_CID_SATURATION:
487 if (decoder->sat != ctrl->value) {
488 decoder->sat = ctrl->value;
489 vpx3220_fp_write(sd, 0xa0, decoder->sat);
490 }
491 break;
492 case V4L2_CID_HUE:
493 if (decoder->hue != ctrl->value) {
494 decoder->hue = ctrl->value;
495 vpx3220_fp_write(sd, 0x1c, decoder->hue);
496 }
497 break;
498 default:
499 return -EINVAL;
500 }
501 return 0;
502}
503
504static int vpx3220_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
505{
506 struct vpx3220 *decoder = to_vpx3220(sd);
507 struct i2c_client *client = v4l2_get_subdevdata(sd);
508
509 return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 0);
510}
511
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300512/* ----------------------------------------------------------------------- */
513
514static const struct v4l2_subdev_core_ops vpx3220_core_ops = {
515 .g_chip_ident = vpx3220_g_chip_ident,
516 .init = vpx3220_init,
517 .g_ctrl = vpx3220_g_ctrl,
518 .s_ctrl = vpx3220_s_ctrl,
519 .queryctrl = vpx3220_queryctrl,
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300520 .s_std = vpx3220_s_std,
521};
522
523static const struct v4l2_subdev_video_ops vpx3220_video_ops = {
524 .s_routing = vpx3220_s_routing,
525 .s_stream = vpx3220_s_stream,
526 .querystd = vpx3220_querystd,
527 .g_input_status = vpx3220_g_input_status,
528};
529
530static const struct v4l2_subdev_ops vpx3220_ops = {
531 .core = &vpx3220_core_ops,
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300532 .video = &vpx3220_video_ops,
533};
534
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535/* -----------------------------------------------------------------------
Joe Perchesc84e6032008-02-03 17:18:59 +0200536 * Client management code
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 */
538
Hans Verkuil23848b62008-09-07 08:01:39 -0300539static int vpx3220_probe(struct i2c_client *client,
540 const struct i2c_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 struct vpx3220 *decoder;
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300543 struct v4l2_subdev *sd;
Hans Verkuil23848b62008-09-07 08:01:39 -0300544 const char *name = NULL;
545 u8 ver;
546 u16 pn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547
548 /* Check if the adapter supports the needed features */
Hans Verkuil23848b62008-09-07 08:01:39 -0300549 if (!i2c_check_functionality(client->adapter,
550 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
551 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
Panagiotis Issaris74081872006-01-11 19:40:56 -0200553 decoder = kzalloc(sizeof(struct vpx3220), GFP_KERNEL);
Hans Verkuil23848b62008-09-07 08:01:39 -0300554 if (decoder == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 return -ENOMEM;
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300556 sd = &decoder->sd;
557 v4l2_i2c_subdev_init(sd, client, &vpx3220_ops);
Hans Verkuil107063c2009-02-18 17:26:06 -0300558 decoder->norm = V4L2_STD_PAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 decoder->input = 0;
560 decoder->enable = 1;
561 decoder->bright = 32768;
562 decoder->contrast = 32768;
563 decoder->hue = 32768;
564 decoder->sat = 32768;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565
Hans Verkuil23848b62008-09-07 08:01:39 -0300566 ver = i2c_smbus_read_byte_data(client, 0x00);
567 pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) +
568 i2c_smbus_read_byte_data(client, 0x01);
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300569 decoder->ident = V4L2_IDENT_VPX3220A;
Hans Verkuil23848b62008-09-07 08:01:39 -0300570 if (ver == 0xec) {
571 switch (pn) {
572 case 0x4680:
573 name = "vpx3220a";
574 break;
575 case 0x4260:
576 name = "vpx3216b";
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300577 decoder->ident = V4L2_IDENT_VPX3216B;
Hans Verkuil23848b62008-09-07 08:01:39 -0300578 break;
579 case 0x4280:
580 name = "vpx3214c";
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300581 decoder->ident = V4L2_IDENT_VPX3214C;
Hans Verkuil23848b62008-09-07 08:01:39 -0300582 break;
583 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 }
Hans Verkuil23848b62008-09-07 08:01:39 -0300585 if (name)
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300586 v4l2_info(sd, "%s found @ 0x%x (%s)\n", name,
Hans Verkuil23848b62008-09-07 08:01:39 -0300587 client->addr << 1, client->adapter->name);
588 else
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300589 v4l2_info(sd, "chip (%02x:%04x) found @ 0x%x (%s)\n",
Hans Verkuil23848b62008-09-07 08:01:39 -0300590 ver, pn, client->addr << 1, client->adapter->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300592 vpx3220_write_block(sd, init_common, sizeof(init_common));
593 vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1);
594 /* Default to PAL */
595 vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 return 0;
597}
598
Hans Verkuil23848b62008-09-07 08:01:39 -0300599static int vpx3220_remove(struct i2c_client *client)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600{
Hans Verkuil7e5eaad2009-02-19 14:36:53 -0300601 struct v4l2_subdev *sd = i2c_get_clientdata(client);
602
603 v4l2_device_unregister_subdev(sd);
604 kfree(to_vpx3220(sd));
Hans Verkuil23848b62008-09-07 08:01:39 -0300605 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606}
607
Hans Verkuil23848b62008-09-07 08:01:39 -0300608static const struct i2c_device_id vpx3220_id[] = {
609 { "vpx3220a", 0 },
610 { "vpx3216b", 0 },
611 { "vpx3214c", 0 },
612 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613};
Hans Verkuil23848b62008-09-07 08:01:39 -0300614MODULE_DEVICE_TABLE(i2c, vpx3220_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Hans Verkuil23848b62008-09-07 08:01:39 -0300616static struct v4l2_i2c_driver_data v4l2_i2c_data = {
617 .name = "vpx3220",
Hans Verkuil23848b62008-09-07 08:01:39 -0300618 .probe = vpx3220_probe,
619 .remove = vpx3220_remove,
620 .id_table = vpx3220_id,
621};