2 * adv7343 - ADV7343 Video Encoder Driver
4 * The encoder hardware does not support SECAM.
6 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation version 2.
12 * This program is distributed .as is. WITHOUT ANY WARRANTY of any
13 * kind, whether express or implied; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/ctype.h>
21 #include <linux/i2c.h>
22 #include <linux/device.h>
23 #include <linux/delay.h>
24 #include <linux/module.h>
25 #include <linux/videodev2.h>
26 #include <linux/uaccess.h>
28 #include <media/adv7343.h>
29 #include <media/v4l2-device.h>
30 #include <media/v4l2-chip-ident.h>
32 #include "adv7343_regs.h"
34 MODULE_DESCRIPTION("ADV7343 video encoder driver");
35 MODULE_LICENSE("GPL");
38 module_param(debug, int, 0644);
39 MODULE_PARM_DESC(debug, "Debug level 0-1");
41 struct adv7343_state {
42 struct v4l2_subdev sd;
56 static inline struct adv7343_state *to_state(struct v4l2_subdev *sd)
58 return container_of(sd, struct adv7343_state, sd);
61 static inline int adv7343_write(struct v4l2_subdev *sd, u8 reg, u8 value)
63 struct i2c_client *client = v4l2_get_subdevdata(sd);
65 return i2c_smbus_write_byte_data(client, reg, value);
68 static const u8 adv7343_init_reg_val[] = {
69 ADV7343_SOFT_RESET, ADV7343_SOFT_RESET_DEFAULT,
70 ADV7343_POWER_MODE_REG, ADV7343_POWER_MODE_REG_DEFAULT,
72 ADV7343_HD_MODE_REG1, ADV7343_HD_MODE_REG1_DEFAULT,
73 ADV7343_HD_MODE_REG2, ADV7343_HD_MODE_REG2_DEFAULT,
74 ADV7343_HD_MODE_REG3, ADV7343_HD_MODE_REG3_DEFAULT,
75 ADV7343_HD_MODE_REG4, ADV7343_HD_MODE_REG4_DEFAULT,
76 ADV7343_HD_MODE_REG5, ADV7343_HD_MODE_REG5_DEFAULT,
77 ADV7343_HD_MODE_REG6, ADV7343_HD_MODE_REG6_DEFAULT,
78 ADV7343_HD_MODE_REG7, ADV7343_HD_MODE_REG7_DEFAULT,
80 ADV7343_SD_MODE_REG1, ADV7343_SD_MODE_REG1_DEFAULT,
81 ADV7343_SD_MODE_REG2, ADV7343_SD_MODE_REG2_DEFAULT,
82 ADV7343_SD_MODE_REG3, ADV7343_SD_MODE_REG3_DEFAULT,
83 ADV7343_SD_MODE_REG4, ADV7343_SD_MODE_REG4_DEFAULT,
84 ADV7343_SD_MODE_REG5, ADV7343_SD_MODE_REG5_DEFAULT,
85 ADV7343_SD_MODE_REG6, ADV7343_SD_MODE_REG6_DEFAULT,
86 ADV7343_SD_MODE_REG7, ADV7343_SD_MODE_REG7_DEFAULT,
87 ADV7343_SD_MODE_REG8, ADV7343_SD_MODE_REG8_DEFAULT,
89 ADV7343_SD_HUE_REG, ADV7343_SD_HUE_REG_DEFAULT,
90 ADV7343_SD_CGMS_WSS0, ADV7343_SD_CGMS_WSS0_DEFAULT,
91 ADV7343_SD_BRIGHTNESS_WSS, ADV7343_SD_BRIGHTNESS_WSS_DEFAULT,
96 * FSC(reg) = FSC (HZ) * --------
99 static const struct adv7343_std_info stdinfo[] = {
101 /* FSC(Hz) = 3,579,545.45 Hz */
102 SD_STD_NTSC, 569408542, V4L2_STD_NTSC,
104 /* FSC(Hz) = 3,575,611.00 Hz */
105 SD_STD_PAL_M, 568782678, V4L2_STD_PAL_M,
107 /* FSC(Hz) = 3,582,056.00 */
108 SD_STD_PAL_N, 569807903, V4L2_STD_PAL_Nc,
110 /* FSC(Hz) = 4,433,618.75 Hz */
111 SD_STD_PAL_N, 705268427, V4L2_STD_PAL_N,
113 /* FSC(Hz) = 4,433,618.75 Hz */
114 SD_STD_PAL_BDGHI, 705268427, V4L2_STD_PAL,
116 /* FSC(Hz) = 4,433,618.75 Hz */
117 SD_STD_NTSC, 705268427, V4L2_STD_NTSC_443,
119 /* FSC(Hz) = 4,433,618.75 Hz */
120 SD_STD_PAL_M, 705268427, V4L2_STD_PAL_60,
124 static int adv7343_setstd(struct v4l2_subdev *sd, v4l2_std_id std)
126 struct adv7343_state *state = to_state(sd);
127 struct adv7343_std_info *std_info;
128 int output_idx, num_std;
134 output_idx = state->output;
136 std_info = (struct adv7343_std_info *)stdinfo;
137 num_std = ARRAY_SIZE(stdinfo);
139 for (i = 0; i < num_std; i++) {
140 if (std_info[i].stdid & std)
145 v4l2_dbg(1, debug, sd,
146 "Invalid std or std is not supported: %llx\n",
147 (unsigned long long)std);
151 /* Set the standard */
152 val = state->reg80 & (~(SD_STD_MASK));
153 val |= std_info[i].standard_val3;
154 err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
160 /* Configure the input mode register */
161 val = state->reg01 & (~((u8) INPUT_MODE_MASK));
162 val |= SD_INPUT_MODE;
163 err = adv7343_write(sd, ADV7343_MODE_SELECT_REG, val);
169 /* Program the sub carrier frequency registers */
170 fsc_ptr = (unsigned char *)&std_info[i].fsc_val;
171 reg = ADV7343_FSC_REG0;
172 for (i = 0; i < 4; i++, reg++, fsc_ptr++) {
173 err = adv7343_write(sd, reg, *fsc_ptr);
180 /* Filter settings */
181 if (std & (V4L2_STD_NTSC | V4L2_STD_NTSC_443))
183 else if (std & ~V4L2_STD_SECAM)
186 err = adv7343_write(sd, ADV7343_SD_MODE_REG1, val);
194 v4l2_err(sd, "Error setting std, write failed\n");
199 static int adv7343_setoutput(struct v4l2_subdev *sd, u32 output_type)
201 struct adv7343_state *state = to_state(sd);
205 if (output_type > ADV7343_SVIDEO_ID) {
206 v4l2_dbg(1, debug, sd,
207 "Invalid output type or output type not supported:%d\n",
212 /* Enable Appropriate DAC */
213 val = state->reg00 & 0x03;
215 if (output_type == ADV7343_COMPOSITE_ID)
216 val |= ADV7343_COMPOSITE_POWER_VALUE;
217 else if (output_type == ADV7343_COMPONENT_ID)
218 val |= ADV7343_COMPONENT_POWER_VALUE;
220 val |= ADV7343_SVIDEO_POWER_VALUE;
222 err = adv7343_write(sd, ADV7343_POWER_MODE_REG, val);
228 /* Enable YUV output */
229 val = state->reg02 | YUV_OUTPUT_SELECT;
230 err = adv7343_write(sd, ADV7343_MODE_REG0, val);
236 /* configure SD DAC Output 2 and SD DAC Output 1 bit to zero */
237 val = state->reg82 & (SD_DAC_1_DI & SD_DAC_2_DI);
238 err = adv7343_write(sd, ADV7343_SD_MODE_REG2, val);
244 /* configure ED/HD Color DAC Swap and ED/HD RGB Input Enable bit to
246 val = state->reg35 & (HD_RGB_INPUT_DI & HD_DAC_SWAP_DI);
247 err = adv7343_write(sd, ADV7343_HD_MODE_REG6, val);
255 v4l2_err(sd, "Error setting output, write failed\n");
260 static int adv7343_log_status(struct v4l2_subdev *sd)
262 struct adv7343_state *state = to_state(sd);
264 v4l2_info(sd, "Standard: %llx\n", (unsigned long long)state->std);
265 v4l2_info(sd, "Output: %s\n", (state->output == 0) ? "Composite" :
266 ((state->output == 1) ? "Component" : "S-Video"));
270 static int adv7343_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
273 case V4L2_CID_BRIGHTNESS:
274 return v4l2_ctrl_query_fill(qc, ADV7343_BRIGHTNESS_MIN,
275 ADV7343_BRIGHTNESS_MAX, 1,
276 ADV7343_BRIGHTNESS_DEF);
278 return v4l2_ctrl_query_fill(qc, ADV7343_HUE_MIN,
282 return v4l2_ctrl_query_fill(qc, ADV7343_GAIN_MIN,
292 static int adv7343_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
294 struct adv7343_state *state = to_state(sd);
298 case V4L2_CID_BRIGHTNESS:
299 if (ctrl->value < ADV7343_BRIGHTNESS_MIN ||
300 ctrl->value > ADV7343_BRIGHTNESS_MAX) {
301 v4l2_dbg(1, debug, sd,
302 "invalid brightness settings %d\n",
307 state->bright = ctrl->value;
308 err = adv7343_write(sd, ADV7343_SD_BRIGHTNESS_WSS,
313 if (ctrl->value < ADV7343_HUE_MIN ||
314 ctrl->value > ADV7343_HUE_MAX) {
315 v4l2_dbg(1, debug, sd, "invalid hue settings %d\n",
320 state->hue = ctrl->value;
321 err = adv7343_write(sd, ADV7343_SD_HUE_REG, state->hue);
325 if (ctrl->value < ADV7343_GAIN_MIN ||
326 ctrl->value > ADV7343_GAIN_MAX) {
327 v4l2_dbg(1, debug, sd, "invalid gain settings %d\n",
332 if ((ctrl->value > POSITIVE_GAIN_MAX) &&
333 (ctrl->value < NEGATIVE_GAIN_MIN)) {
334 v4l2_dbg(1, debug, sd,
335 "gain settings not within the specified range\n");
339 state->gain = ctrl->value;
340 err = adv7343_write(sd, ADV7343_DAC2_OUTPUT_LEVEL, state->gain);
348 v4l2_err(sd, "Failed to set the encoder controls\n");
353 static int adv7343_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
355 struct adv7343_state *state = to_state(sd);
358 case V4L2_CID_BRIGHTNESS:
359 ctrl->value = state->bright;
363 ctrl->value = state->hue;
367 ctrl->value = state->gain;
377 static int adv7343_g_chip_ident(struct v4l2_subdev *sd,
378 struct v4l2_dbg_chip_ident *chip)
380 struct i2c_client *client = v4l2_get_subdevdata(sd);
382 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7343, 0);
385 static const struct v4l2_subdev_core_ops adv7343_core_ops = {
386 .log_status = adv7343_log_status,
387 .g_chip_ident = adv7343_g_chip_ident,
388 .g_ctrl = adv7343_g_ctrl,
389 .s_ctrl = adv7343_s_ctrl,
390 .queryctrl = adv7343_queryctrl,
393 static int adv7343_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
395 struct adv7343_state *state = to_state(sd);
398 if (state->std == std)
401 err = adv7343_setstd(sd, std);
408 static int adv7343_s_routing(struct v4l2_subdev *sd,
409 u32 input, u32 output, u32 config)
411 struct adv7343_state *state = to_state(sd);
414 if (state->output == output)
417 err = adv7343_setoutput(sd, output);
419 state->output = output;
424 static const struct v4l2_subdev_video_ops adv7343_video_ops = {
425 .s_std_output = adv7343_s_std_output,
426 .s_routing = adv7343_s_routing,
429 static const struct v4l2_subdev_ops adv7343_ops = {
430 .core = &adv7343_core_ops,
431 .video = &adv7343_video_ops,
434 static int adv7343_initialize(struct v4l2_subdev *sd)
436 struct adv7343_state *state = to_state(sd);
440 for (i = 0; i < ARRAY_SIZE(adv7343_init_reg_val); i += 2) {
442 err = adv7343_write(sd, adv7343_init_reg_val[i],
443 adv7343_init_reg_val[i+1]);
445 v4l2_err(sd, "Error initializing\n");
450 /* Configure for default video standard */
451 err = adv7343_setoutput(sd, state->output);
453 v4l2_err(sd, "Error setting output during init\n");
457 err = adv7343_setstd(sd, state->std);
459 v4l2_err(sd, "Error setting std during init\n");
466 static int adv7343_probe(struct i2c_client *client,
467 const struct i2c_device_id *id)
469 struct adv7343_state *state;
471 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
474 v4l_info(client, "chip found @ 0x%x (%s)\n",
475 client->addr << 1, client->adapter->name);
477 state = kzalloc(sizeof(struct adv7343_state), GFP_KERNEL);
485 state->reg80 = ADV7343_SD_MODE_REG1_DEFAULT;
486 state->reg82 = ADV7343_SD_MODE_REG2_DEFAULT;
488 state->output = ADV7343_COMPOSITE_ID;
489 state->std = V4L2_STD_NTSC;
491 v4l2_i2c_subdev_init(&state->sd, client, &adv7343_ops);
492 return adv7343_initialize(&state->sd);
495 static int adv7343_remove(struct i2c_client *client)
497 struct v4l2_subdev *sd = i2c_get_clientdata(client);
499 v4l2_device_unregister_subdev(sd);
505 static const struct i2c_device_id adv7343_id[] = {
510 MODULE_DEVICE_TABLE(i2c, adv7343_id);
512 static struct i2c_driver adv7343_driver = {
514 .owner = THIS_MODULE,
517 .probe = adv7343_probe,
518 .remove = adv7343_remove,
519 .id_table = adv7343_id,
522 static __init int init_adv7343(void)
524 return i2c_add_driver(&adv7343_driver);
527 static __exit void exit_adv7343(void)
529 i2c_del_driver(&adv7343_driver);
532 module_init(init_adv7343);
533 module_exit(exit_adv7343);