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/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>
29 #include <media/adv7343.h>
30 #include <media/v4l2-device.h>
31 #include <media/v4l2-chip-ident.h>
32 #include <media/v4l2-ctrls.h>
34 #include "adv7343_regs.h"
36 MODULE_DESCRIPTION("ADV7343 video encoder driver");
37 MODULE_LICENSE("GPL");
40 module_param(debug
, int, 0644);
41 MODULE_PARM_DESC(debug
, "Debug level 0-1");
43 struct adv7343_state
{
44 struct v4l2_subdev sd
;
45 struct v4l2_ctrl_handler hdl
;
56 static inline struct adv7343_state
*to_state(struct v4l2_subdev
*sd
)
58 return container_of(sd
, struct adv7343_state
, sd
);
61 static inline struct v4l2_subdev
*to_sd(struct v4l2_ctrl
*ctrl
)
63 return &container_of(ctrl
->handler
, struct adv7343_state
, hdl
)->sd
;
66 static inline int adv7343_write(struct v4l2_subdev
*sd
, u8 reg
, u8 value
)
68 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
70 return i2c_smbus_write_byte_data(client
, reg
, value
);
73 static const u8 adv7343_init_reg_val
[] = {
74 ADV7343_SOFT_RESET
, ADV7343_SOFT_RESET_DEFAULT
,
75 ADV7343_POWER_MODE_REG
, ADV7343_POWER_MODE_REG_DEFAULT
,
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
,
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
,
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
,
101 * FSC(reg) = FSC (HZ) * --------
104 static const struct adv7343_std_info stdinfo
[] = {
106 /* FSC(Hz) = 3,579,545.45 Hz */
107 SD_STD_NTSC
, 569408542, V4L2_STD_NTSC
,
109 /* FSC(Hz) = 3,575,611.00 Hz */
110 SD_STD_PAL_M
, 568782678, V4L2_STD_PAL_M
,
112 /* FSC(Hz) = 3,582,056.00 */
113 SD_STD_PAL_N
, 569807903, V4L2_STD_PAL_Nc
,
115 /* FSC(Hz) = 4,433,618.75 Hz */
116 SD_STD_PAL_N
, 705268427, V4L2_STD_PAL_N
,
118 /* FSC(Hz) = 4,433,618.75 Hz */
119 SD_STD_PAL_BDGHI
, 705268427, V4L2_STD_PAL
,
121 /* FSC(Hz) = 4,433,618.75 Hz */
122 SD_STD_NTSC
, 705268427, V4L2_STD_NTSC_443
,
124 /* FSC(Hz) = 4,433,618.75 Hz */
125 SD_STD_PAL_M
, 705268427, V4L2_STD_PAL_60
,
129 static int adv7343_setstd(struct v4l2_subdev
*sd
, v4l2_std_id std
)
131 struct adv7343_state
*state
= to_state(sd
);
132 struct adv7343_std_info
*std_info
;
139 std_info
= (struct adv7343_std_info
*)stdinfo
;
140 num_std
= ARRAY_SIZE(stdinfo
);
142 for (i
= 0; i
< num_std
; i
++) {
143 if (std_info
[i
].stdid
& std
)
148 v4l2_dbg(1, debug
, sd
,
149 "Invalid std or std is not supported: %llx\n",
150 (unsigned long long)std
);
154 /* Set the standard */
155 val
= state
->reg80
& (~(SD_STD_MASK
));
156 val
|= std_info
[i
].standard_val3
;
157 err
= adv7343_write(sd
, ADV7343_SD_MODE_REG1
, val
);
163 /* Configure the input mode register */
164 val
= state
->reg01
& (~((u8
) INPUT_MODE_MASK
));
165 val
|= SD_INPUT_MODE
;
166 err
= adv7343_write(sd
, ADV7343_MODE_SELECT_REG
, val
);
172 /* Program the sub carrier frequency registers */
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
);
183 /* Filter settings */
184 if (std
& (V4L2_STD_NTSC
| V4L2_STD_NTSC_443
))
186 else if (std
& ~V4L2_STD_SECAM
)
189 err
= adv7343_write(sd
, ADV7343_SD_MODE_REG1
, val
);
197 v4l2_err(sd
, "Error setting std, write failed\n");
202 static int adv7343_setoutput(struct v4l2_subdev
*sd
, u32 output_type
)
204 struct adv7343_state
*state
= to_state(sd
);
208 if (output_type
> ADV7343_SVIDEO_ID
) {
209 v4l2_dbg(1, debug
, sd
,
210 "Invalid output type or output type not supported:%d\n",
215 /* Enable Appropriate DAC */
216 val
= state
->reg00
& 0x03;
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
;
223 val
|= ADV7343_SVIDEO_POWER_VALUE
;
225 err
= adv7343_write(sd
, ADV7343_POWER_MODE_REG
, val
);
231 /* Enable YUV output */
232 val
= state
->reg02
| YUV_OUTPUT_SELECT
;
233 err
= adv7343_write(sd
, ADV7343_MODE_REG0
, val
);
239 /* configure SD DAC Output 2 and SD DAC Output 1 bit to zero */
240 val
= state
->reg82
& (SD_DAC_1_DI
& SD_DAC_2_DI
);
241 err
= adv7343_write(sd
, ADV7343_SD_MODE_REG2
, val
);
247 /* configure ED/HD Color DAC Swap and ED/HD RGB Input Enable bit to
249 val
= state
->reg35
& (HD_RGB_INPUT_DI
& HD_DAC_SWAP_DI
);
250 err
= adv7343_write(sd
, ADV7343_HD_MODE_REG6
, val
);
258 v4l2_err(sd
, "Error setting output, write failed\n");
263 static int adv7343_log_status(struct v4l2_subdev
*sd
)
265 struct adv7343_state
*state
= to_state(sd
);
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"));
273 static int adv7343_s_ctrl(struct v4l2_ctrl
*ctrl
)
275 struct v4l2_subdev
*sd
= to_sd(ctrl
);
278 case V4L2_CID_BRIGHTNESS
:
279 return adv7343_write(sd
, ADV7343_SD_BRIGHTNESS_WSS
,
283 return adv7343_write(sd
, ADV7343_SD_HUE_REG
, ctrl
->val
);
286 return adv7343_write(sd
, ADV7343_DAC2_OUTPUT_LEVEL
, ctrl
->val
);
291 static int adv7343_g_chip_ident(struct v4l2_subdev
*sd
,
292 struct v4l2_dbg_chip_ident
*chip
)
294 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
296 return v4l2_chip_ident_i2c_client(client
, chip
, V4L2_IDENT_ADV7343
, 0);
299 static const struct v4l2_ctrl_ops adv7343_ctrl_ops
= {
300 .s_ctrl
= adv7343_s_ctrl
,
303 static 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
,
315 static int adv7343_s_std_output(struct v4l2_subdev
*sd
, v4l2_std_id std
)
317 struct adv7343_state
*state
= to_state(sd
);
320 if (state
->std
== std
)
323 err
= adv7343_setstd(sd
, std
);
330 static int adv7343_s_routing(struct v4l2_subdev
*sd
,
331 u32 input
, u32 output
, u32 config
)
333 struct adv7343_state
*state
= to_state(sd
);
336 if (state
->output
== output
)
339 err
= adv7343_setoutput(sd
, output
);
341 state
->output
= output
;
346 static const struct v4l2_subdev_video_ops adv7343_video_ops
= {
347 .s_std_output
= adv7343_s_std_output
,
348 .s_routing
= adv7343_s_routing
,
351 static const struct v4l2_subdev_ops adv7343_ops
= {
352 .core
= &adv7343_core_ops
,
353 .video
= &adv7343_video_ops
,
356 static int adv7343_initialize(struct v4l2_subdev
*sd
)
358 struct adv7343_state
*state
= to_state(sd
);
362 for (i
= 0; i
< ARRAY_SIZE(adv7343_init_reg_val
); i
+= 2) {
364 err
= adv7343_write(sd
, adv7343_init_reg_val
[i
],
365 adv7343_init_reg_val
[i
+1]);
367 v4l2_err(sd
, "Error initializing\n");
372 /* Configure for default video standard */
373 err
= adv7343_setoutput(sd
, state
->output
);
375 v4l2_err(sd
, "Error setting output during init\n");
379 err
= adv7343_setstd(sd
, state
->std
);
381 v4l2_err(sd
, "Error setting std during init\n");
388 static int adv7343_probe(struct i2c_client
*client
,
389 const struct i2c_device_id
*id
)
391 struct adv7343_state
*state
;
394 if (!i2c_check_functionality(client
->adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
397 v4l_info(client
, "chip found @ 0x%x (%s)\n",
398 client
->addr
<< 1, client
->adapter
->name
);
400 state
= kzalloc(sizeof(struct adv7343_state
), GFP_KERNEL
);
408 state
->reg80
= ADV7343_SD_MODE_REG1_DEFAULT
;
409 state
->reg82
= ADV7343_SD_MODE_REG2_DEFAULT
;
411 state
->output
= ADV7343_COMPOSITE_ID
;
412 state
->std
= V4L2_STD_NTSC
;
414 v4l2_i2c_subdev_init(&state
->sd
, client
, &adv7343_ops
);
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
,
425 v4l2_ctrl_new_std(&state
->hdl
, &adv7343_ctrl_ops
,
426 V4L2_CID_GAIN
, ADV7343_GAIN_MIN
,
429 state
->sd
.ctrl_handler
= &state
->hdl
;
430 if (state
->hdl
.error
) {
431 int err
= state
->hdl
.error
;
433 v4l2_ctrl_handler_free(&state
->hdl
);
437 v4l2_ctrl_handler_setup(&state
->hdl
);
439 err
= adv7343_initialize(&state
->sd
);
441 v4l2_ctrl_handler_free(&state
->hdl
);
447 static int adv7343_remove(struct i2c_client
*client
)
449 struct v4l2_subdev
*sd
= i2c_get_clientdata(client
);
450 struct adv7343_state
*state
= to_state(sd
);
452 v4l2_device_unregister_subdev(sd
);
453 v4l2_ctrl_handler_free(&state
->hdl
);
459 static const struct i2c_device_id adv7343_id
[] = {
464 MODULE_DEVICE_TABLE(i2c
, adv7343_id
);
466 static struct i2c_driver adv7343_driver
= {
468 .owner
= THIS_MODULE
,
471 .probe
= adv7343_probe
,
472 .remove
= adv7343_remove
,
473 .id_table
= adv7343_id
,
476 module_i2c_driver(adv7343_driver
);