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18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/ctype.h>
21#include <linux/slab.h>
22#include <linux/i2c.h>
23#include <linux/device.h>
24#include <linux/delay.h>
25#include <linux/module.h>
26#include <linux/videodev2.h>
27#include <linux/uaccess.h>
28
29#include <media/adv7343.h>
30#include <media/v4l2-device.h>
31#include <media/v4l2-chip-ident.h>
32#include <media/v4l2-ctrls.h>
33
34#include "adv7343_regs.h"
35
36MODULE_DESCRIPTION("ADV7343 video encoder driver");
37MODULE_LICENSE("GPL");
38
39static int debug;
40module_param(debug, int, 0644);
41MODULE_PARM_DESC(debug, "Debug level 0-1");
42
43struct adv7343_state {
44 struct v4l2_subdev sd;
45 struct v4l2_ctrl_handler hdl;
46 u8 reg00;
47 u8 reg01;
48 u8 reg02;
49 u8 reg35;
50 u8 reg80;
51 u8 reg82;
52 u32 output;
53 v4l2_std_id std;
54};
55
56static inline struct adv7343_state *to_state(struct v4l2_subdev *sd)
57{
58 return container_of(sd, struct adv7343_state, sd);
59}
60
61static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
62{
63 return &container_of(ctrl->handler, struct adv7343_state, hdl)->sd;
64}
65
66static inline int adv7343_write(struct v4l2_subdev *sd, u8 reg, u8 value)
67{
68 struct i2c_client *client = v4l2_get_subdevdata(sd);
69
70 return i2c_smbus_write_byte_data(client, reg, value);
71}
72
73static const u8 adv7343_init_reg_val[] = {
74 ADV7343_SOFT_RESET, ADV7343_SOFT_RESET_DEFAULT,
75 ADV7343_POWER_MODE_REG, ADV7343_POWER_MODE_REG_DEFAULT,
76
77 ADV7343_HD_MODE_REG1, ADV7343_HD_MODE_REG1_DEFAULT,
78 ADV7343_HD_MODE_REG2, ADV7343_HD_MODE_REG2_DEFAULT,
79 ADV7343_HD_MODE_REG3, ADV7343_HD_MODE_REG3_DEFAULT,
80 ADV7343_HD_MODE_REG4, ADV7343_HD_MODE_REG4_DEFAULT,
81 ADV7343_HD_MODE_REG5, ADV7343_HD_MODE_REG5_DEFAULT,
82 ADV7343_HD_MODE_REG6, ADV7343_HD_MODE_REG6_DEFAULT,
83 ADV7343_HD_MODE_REG7, ADV7343_HD_MODE_REG7_DEFAULT,
84
85 ADV7343_SD_MODE_REG1, ADV7343_SD_MODE_REG1_DEFAULT,
86 ADV7343_SD_MODE_REG2, ADV7343_SD_MODE_REG2_DEFAULT,
87 ADV7343_SD_MODE_REG3, ADV7343_SD_MODE_REG3_DEFAULT,
88 ADV7343_SD_MODE_REG4, ADV7343_SD_MODE_REG4_DEFAULT,
89 ADV7343_SD_MODE_REG5, ADV7343_SD_MODE_REG5_DEFAULT,
90 ADV7343_SD_MODE_REG6, ADV7343_SD_MODE_REG6_DEFAULT,
91 ADV7343_SD_MODE_REG7, ADV7343_SD_MODE_REG7_DEFAULT,
92 ADV7343_SD_MODE_REG8, ADV7343_SD_MODE_REG8_DEFAULT,
93
94 ADV7343_SD_HUE_REG, ADV7343_SD_HUE_REG_DEFAULT,
95 ADV7343_SD_CGMS_WSS0, ADV7343_SD_CGMS_WSS0_DEFAULT,
96 ADV7343_SD_BRIGHTNESS_WSS, ADV7343_SD_BRIGHTNESS_WSS_DEFAULT,
97};
98
99
100
101
102
103
104static const struct adv7343_std_info stdinfo[] = {
105 {
106
107 SD_STD_NTSC, 569408542, V4L2_STD_NTSC,
108 }, {
109
110 SD_STD_PAL_M, 568782678, V4L2_STD_PAL_M,
111 }, {
112
113 SD_STD_PAL_N, 569807903, V4L2_STD_PAL_Nc,
114 }, {
115
116 SD_STD_PAL_N, 705268427, V4L2_STD_PAL_N,
117 }, {
118
119 SD_STD_PAL_BDGHI, 705268427, V4L2_STD_PAL,
120 }, {
121
122 SD_STD_NTSC, 705268427, V4L2_STD_NTSC_443,
123 }, {
124
125 SD_STD_PAL_M, 705268427, V4L2_STD_PAL_60,
126 },
127};
128
129static int adv7343_setstd(struct v4l2_subdev *sd, v4l2_std_id std)
130{
131 struct adv7343_state *state = to_state(sd);
132 struct adv7343_std_info *std_info;
133 int num_std;
134 char *fsc_ptr;
135 u8 reg, val;
136 int err = 0;
137 int i = 0;
138
139 std_info = (struct adv7343_std_info *)stdinfo;
140 num_std = ARRAY_SIZE(stdinfo);
141
142 for (i = 0; i < num_std; i++) {
143 if (std_info[i].stdid & std)
144 break;
145 }
146
147 if (i == num_std) {
148 v4l2_dbg(1, debug, sd,
149 "Invalid std or std is not supported: %llx\n",
150 (unsigned long long)std);
151 return -EINVAL;
152 }
153
154
155 val = state->reg80 & (~(SD_STD_MASK));
156 val |= std_info[i].standard_val3;
157 err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
158 if (err < 0)
159 goto setstd_exit;
160
161 state->reg80 = val;
162
163
164 val = state->reg01 & (~((u8) INPUT_MODE_MASK));
165 val |= SD_INPUT_MODE;
166 err = adv7343_write(sd, ADV7343_MODE_SELECT_REG, val);
167 if (err < 0)
168 goto setstd_exit;
169
170 state->reg01 = val;
171
172
173 fsc_ptr = (unsigned char *)&std_info[i].fsc_val;
174 reg = ADV7343_FSC_REG0;
175 for (i = 0; i < 4; i++, reg++, fsc_ptr++) {
176 err = adv7343_write(sd, reg, *fsc_ptr);
177 if (err < 0)
178 goto setstd_exit;
179 }
180
181 val = state->reg80;
182
183
184 if (std & (V4L2_STD_NTSC | V4L2_STD_NTSC_443))
185 val &= 0x03;
186 else if (std & ~V4L2_STD_SECAM)
187 val |= 0x04;
188
189 err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
190 if (err < 0)
191 goto setstd_exit;
192
193 state->reg80 = val;
194
195setstd_exit:
196 if (err != 0)
197 v4l2_err(sd, "Error setting std, write failed\n");
198
199 return err;
200}
201
202static int adv7343_setoutput(struct v4l2_subdev *sd, u32 output_type)
203{
204 struct adv7343_state *state = to_state(sd);
205 unsigned char val;
206 int err = 0;
207
208 if (output_type > ADV7343_SVIDEO_ID) {
209 v4l2_dbg(1, debug, sd,
210 "Invalid output type or output type not supported:%d\n",
211 output_type);
212 return -EINVAL;
213 }
214
215
216 val = state->reg00 & 0x03;
217
218 if (output_type == ADV7343_COMPOSITE_ID)
219 val |= ADV7343_COMPOSITE_POWER_VALUE;
220 else if (output_type == ADV7343_COMPONENT_ID)
221 val |= ADV7343_COMPONENT_POWER_VALUE;
222 else
223 val |= ADV7343_SVIDEO_POWER_VALUE;
224
225 err = adv7343_write(sd, ADV7343_POWER_MODE_REG, val);
226 if (err < 0)
227 goto setoutput_exit;
228
229 state->reg00 = val;
230
231
232 val = state->reg02 | YUV_OUTPUT_SELECT;
233 err = adv7343_write(sd, ADV7343_MODE_REG0, val);
234 if (err < 0)
235 goto setoutput_exit;
236
237 state->reg02 = val;
238
239
240 val = state->reg82 & (SD_DAC_1_DI & SD_DAC_2_DI);
241 err = adv7343_write(sd, ADV7343_SD_MODE_REG2, val);
242 if (err < 0)
243 goto setoutput_exit;
244
245 state->reg82 = val;
246
247
248
249 val = state->reg35 & (HD_RGB_INPUT_DI & HD_DAC_SWAP_DI);
250 err = adv7343_write(sd, ADV7343_HD_MODE_REG6, val);
251 if (err < 0)
252 goto setoutput_exit;
253
254 state->reg35 = val;
255
256setoutput_exit:
257 if (err != 0)
258 v4l2_err(sd, "Error setting output, write failed\n");
259
260 return err;
261}
262
263static int adv7343_log_status(struct v4l2_subdev *sd)
264{
265 struct adv7343_state *state = to_state(sd);
266
267 v4l2_info(sd, "Standard: %llx\n", (unsigned long long)state->std);
268 v4l2_info(sd, "Output: %s\n", (state->output == 0) ? "Composite" :
269 ((state->output == 1) ? "Component" : "S-Video"));
270 return 0;
271}
272
273static int adv7343_s_ctrl(struct v4l2_ctrl *ctrl)
274{
275 struct v4l2_subdev *sd = to_sd(ctrl);
276
277 switch (ctrl->id) {
278 case V4L2_CID_BRIGHTNESS:
279 return adv7343_write(sd, ADV7343_SD_BRIGHTNESS_WSS,
280 ctrl->val);
281
282 case V4L2_CID_HUE:
283 return adv7343_write(sd, ADV7343_SD_HUE_REG, ctrl->val);
284
285 case V4L2_CID_GAIN:
286 return adv7343_write(sd, ADV7343_DAC2_OUTPUT_LEVEL, ctrl->val);
287 }
288 return -EINVAL;
289}
290
291static int adv7343_g_chip_ident(struct v4l2_subdev *sd,
292 struct v4l2_dbg_chip_ident *chip)
293{
294 struct i2c_client *client = v4l2_get_subdevdata(sd);
295
296 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7343, 0);
297}
298
299static const struct v4l2_ctrl_ops adv7343_ctrl_ops = {
300 .s_ctrl = adv7343_s_ctrl,
301};
302
303static const struct v4l2_subdev_core_ops adv7343_core_ops = {
304 .log_status = adv7343_log_status,
305 .g_chip_ident = adv7343_g_chip_ident,
306 .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
307 .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
308 .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
309 .g_ctrl = v4l2_subdev_g_ctrl,
310 .s_ctrl = v4l2_subdev_s_ctrl,
311 .queryctrl = v4l2_subdev_queryctrl,
312 .querymenu = v4l2_subdev_querymenu,
313};
314
315static int adv7343_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
316{
317 struct adv7343_state *state = to_state(sd);
318 int err = 0;
319
320 if (state->std == std)
321 return 0;
322
323 err = adv7343_setstd(sd, std);
324 if (!err)
325 state->std = std;
326
327 return err;
328}
329
330static int adv7343_s_routing(struct v4l2_subdev *sd,
331 u32 input, u32 output, u32 config)
332{
333 struct adv7343_state *state = to_state(sd);
334 int err = 0;
335
336 if (state->output == output)
337 return 0;
338
339 err = adv7343_setoutput(sd, output);
340 if (!err)
341 state->output = output;
342
343 return err;
344}
345
346static const struct v4l2_subdev_video_ops adv7343_video_ops = {
347 .s_std_output = adv7343_s_std_output,
348 .s_routing = adv7343_s_routing,
349};
350
351static const struct v4l2_subdev_ops adv7343_ops = {
352 .core = &adv7343_core_ops,
353 .video = &adv7343_video_ops,
354};
355
356static int adv7343_initialize(struct v4l2_subdev *sd)
357{
358 struct adv7343_state *state = to_state(sd);
359 int err = 0;
360 int i;
361
362 for (i = 0; i < ARRAY_SIZE(adv7343_init_reg_val); i += 2) {
363
364 err = adv7343_write(sd, adv7343_init_reg_val[i],
365 adv7343_init_reg_val[i+1]);
366 if (err) {
367 v4l2_err(sd, "Error initializing\n");
368 return err;
369 }
370 }
371
372
373 err = adv7343_setoutput(sd, state->output);
374 if (err < 0) {
375 v4l2_err(sd, "Error setting output during init\n");
376 return -EINVAL;
377 }
378
379 err = adv7343_setstd(sd, state->std);
380 if (err < 0) {
381 v4l2_err(sd, "Error setting std during init\n");
382 return -EINVAL;
383 }
384
385 return err;
386}
387
388static int adv7343_probe(struct i2c_client *client,
389 const struct i2c_device_id *id)
390{
391 struct adv7343_state *state;
392 int err;
393
394 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
395 return -ENODEV;
396
397 v4l_info(client, "chip found @ 0x%x (%s)\n",
398 client->addr << 1, client->adapter->name);
399
400 state = kzalloc(sizeof(struct adv7343_state), GFP_KERNEL);
401 if (state == NULL)
402 return -ENOMEM;
403
404 state->reg00 = 0x80;
405 state->reg01 = 0x00;
406 state->reg02 = 0x20;
407 state->reg35 = 0x00;
408 state->reg80 = ADV7343_SD_MODE_REG1_DEFAULT;
409 state->reg82 = ADV7343_SD_MODE_REG2_DEFAULT;
410
411 state->output = ADV7343_COMPOSITE_ID;
412 state->std = V4L2_STD_NTSC;
413
414 v4l2_i2c_subdev_init(&state->sd, client, &adv7343_ops);
415
416 v4l2_ctrl_handler_init(&state->hdl, 2);
417 v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
418 V4L2_CID_BRIGHTNESS, ADV7343_BRIGHTNESS_MIN,
419 ADV7343_BRIGHTNESS_MAX, 1,
420 ADV7343_BRIGHTNESS_DEF);
421 v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
422 V4L2_CID_HUE, ADV7343_HUE_MIN,
423 ADV7343_HUE_MAX, 1,
424 ADV7343_HUE_DEF);
425 v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
426 V4L2_CID_GAIN, ADV7343_GAIN_MIN,
427 ADV7343_GAIN_MAX, 1,
428 ADV7343_GAIN_DEF);
429 state->sd.ctrl_handler = &state->hdl;
430 if (state->hdl.error) {
431 int err = state->hdl.error;
432
433 v4l2_ctrl_handler_free(&state->hdl);
434 kfree(state);
435 return err;
436 }
437 v4l2_ctrl_handler_setup(&state->hdl);
438
439 err = adv7343_initialize(&state->sd);
440 if (err) {
441 v4l2_ctrl_handler_free(&state->hdl);
442 kfree(state);
443 }
444 return err;
445}
446
447static int adv7343_remove(struct i2c_client *client)
448{
449 struct v4l2_subdev *sd = i2c_get_clientdata(client);
450 struct adv7343_state *state = to_state(sd);
451
452 v4l2_device_unregister_subdev(sd);
453 v4l2_ctrl_handler_free(&state->hdl);
454 kfree(state);
455
456 return 0;
457}
458
459static const struct i2c_device_id adv7343_id[] = {
460 {"adv7343", 0},
461 {},
462};
463
464MODULE_DEVICE_TABLE(i2c, adv7343_id);
465
466static struct i2c_driver adv7343_driver = {
467 .driver = {
468 .owner = THIS_MODULE,
469 .name = "adv7343",
470 },
471 .probe = adv7343_probe,
472 .remove = adv7343_remove,
473 .id_table = adv7343_id,
474};
475
476module_i2c_driver(adv7343_driver);
477
