2 * adv7180.c Analog Devices ADV7180 video decoder driver
3 * Copyright (c) 2009 Intel Corporation
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/errno.h>
22 #include <linux/kernel.h>
23 #include <linux/interrupt.h>
24 #include <linux/i2c.h>
25 #include <linux/slab.h>
26 #include <media/v4l2-ioctl.h>
27 #include <linux/videodev2.h>
28 #include <media/v4l2-device.h>
29 #include <media/v4l2-ctrls.h>
30 #include <media/v4l2-chip-ident.h>
31 #include <linux/mutex.h>
33 #define ADV7180_INPUT_CONTROL_REG 0x00
34 #define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM 0x00
35 #define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10
36 #define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_J_SECAM 0x20
37 #define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_M_SECAM 0x30
38 #define ADV7180_INPUT_CONTROL_NTSC_J 0x40
39 #define ADV7180_INPUT_CONTROL_NTSC_M 0x50
40 #define ADV7180_INPUT_CONTROL_PAL60 0x60
41 #define ADV7180_INPUT_CONTROL_NTSC_443 0x70
42 #define ADV7180_INPUT_CONTROL_PAL_BG 0x80
43 #define ADV7180_INPUT_CONTROL_PAL_N 0x90
44 #define ADV7180_INPUT_CONTROL_PAL_M 0xa0
45 #define ADV7180_INPUT_CONTROL_PAL_M_PED 0xb0
46 #define ADV7180_INPUT_CONTROL_PAL_COMB_N 0xc0
47 #define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED 0xd0
48 #define ADV7180_INPUT_CONTROL_PAL_SECAM 0xe0
49 #define ADV7180_INPUT_CONTROL_PAL_SECAM_PED 0xf0
50 #define ADV7180_INPUT_CONTROL_INSEL_MASK 0x0f
52 #define ADV7180_EXTENDED_OUTPUT_CONTROL_REG 0x04
53 #define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS 0xC5
55 #define ADV7180_AUTODETECT_ENABLE_REG 0x07
56 #define ADV7180_AUTODETECT_DEFAULT 0x7f
58 #define ADV7180_CON_REG 0x08 /*Unsigned */
59 #define ADV7180_CON_MIN 0
60 #define ADV7180_CON_DEF 128
61 #define ADV7180_CON_MAX 255
63 #define ADV7180_BRI_REG 0x0a /*Signed */
64 #define ADV7180_BRI_MIN -128
65 #define ADV7180_BRI_DEF 0
66 #define ADV7180_BRI_MAX 127
68 #define ADV7180_HUE_REG 0x0b /*Signed, inverted */
69 #define ADV7180_HUE_MIN -127
70 #define ADV7180_HUE_DEF 0
71 #define ADV7180_HUE_MAX 128
73 #define ADV7180_ADI_CTRL_REG 0x0e
74 #define ADV7180_ADI_CTRL_IRQ_SPACE 0x20
76 #define ADV7180_PWR_MAN_REG 0x0f
77 #define ADV7180_PWR_MAN_ON 0x04
78 #define ADV7180_PWR_MAN_OFF 0x24
79 #define ADV7180_PWR_MAN_RES 0x80
81 #define ADV7180_STATUS1_REG 0x10
82 #define ADV7180_STATUS1_IN_LOCK 0x01
83 #define ADV7180_STATUS1_AUTOD_MASK 0x70
84 #define ADV7180_STATUS1_AUTOD_NTSM_M_J 0x00
85 #define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
86 #define ADV7180_STATUS1_AUTOD_PAL_M 0x20
87 #define ADV7180_STATUS1_AUTOD_PAL_60 0x30
88 #define ADV7180_STATUS1_AUTOD_PAL_B_G 0x40
89 #define ADV7180_STATUS1_AUTOD_SECAM 0x50
90 #define ADV7180_STATUS1_AUTOD_PAL_COMB 0x60
91 #define ADV7180_STATUS1_AUTOD_SECAM_525 0x70
93 #define ADV7180_IDENT_REG 0x11
94 #define ADV7180_ID_7180 0x18
96 #define ADV7180_ICONF1_ADI 0x40
97 #define ADV7180_ICONF1_ACTIVE_LOW 0x01
98 #define ADV7180_ICONF1_PSYNC_ONLY 0x10
99 #define ADV7180_ICONF1_ACTIVE_TO_CLR 0xC0
101 #define ADV7180_SD_SAT_CB_REG 0xe3 /*Unsigned */
102 #define ADV7180_SD_SAT_CR_REG 0xe4 /*Unsigned */
103 #define ADV7180_SAT_MIN 0
104 #define ADV7180_SAT_DEF 128
105 #define ADV7180_SAT_MAX 255
107 #define ADV7180_IRQ1_LOCK 0x01
108 #define ADV7180_IRQ1_UNLOCK 0x02
109 #define ADV7180_ISR1_ADI 0x42
110 #define ADV7180_ICR1_ADI 0x43
111 #define ADV7180_IMR1_ADI 0x44
112 #define ADV7180_IMR2_ADI 0x48
113 #define ADV7180_IRQ3_AD_CHANGE 0x08
114 #define ADV7180_ISR3_ADI 0x4A
115 #define ADV7180_ICR3_ADI 0x4B
116 #define ADV7180_IMR3_ADI 0x4C
117 #define ADV7180_IMR4_ADI 0x50
119 #define ADV7180_NTSC_V_BIT_END_REG 0xE6
120 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F
122 struct adv7180_state
{
123 struct v4l2_ctrl_handler ctrl_hdl
;
124 struct v4l2_subdev sd
;
125 struct work_struct work
;
126 struct mutex mutex
; /* mutual excl. when accessing chip */
128 v4l2_std_id curr_norm
;
132 #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \
133 struct adv7180_state, \
136 static v4l2_std_id
adv7180_std_to_v4l2(u8 status1
)
138 switch (status1
& ADV7180_STATUS1_AUTOD_MASK
) {
139 case ADV7180_STATUS1_AUTOD_NTSM_M_J
:
140 return V4L2_STD_NTSC
;
141 case ADV7180_STATUS1_AUTOD_NTSC_4_43
:
142 return V4L2_STD_NTSC_443
;
143 case ADV7180_STATUS1_AUTOD_PAL_M
:
144 return V4L2_STD_PAL_M
;
145 case ADV7180_STATUS1_AUTOD_PAL_60
:
146 return V4L2_STD_PAL_60
;
147 case ADV7180_STATUS1_AUTOD_PAL_B_G
:
149 case ADV7180_STATUS1_AUTOD_SECAM
:
150 return V4L2_STD_SECAM
;
151 case ADV7180_STATUS1_AUTOD_PAL_COMB
:
152 return V4L2_STD_PAL_Nc
| V4L2_STD_PAL_N
;
153 case ADV7180_STATUS1_AUTOD_SECAM_525
:
154 return V4L2_STD_SECAM
;
156 return V4L2_STD_UNKNOWN
;
160 static int v4l2_std_to_adv7180(v4l2_std_id std
)
162 if (std
== V4L2_STD_PAL_60
)
163 return ADV7180_INPUT_CONTROL_PAL60
;
164 if (std
== V4L2_STD_NTSC_443
)
165 return ADV7180_INPUT_CONTROL_NTSC_443
;
166 if (std
== V4L2_STD_PAL_N
)
167 return ADV7180_INPUT_CONTROL_PAL_N
;
168 if (std
== V4L2_STD_PAL_M
)
169 return ADV7180_INPUT_CONTROL_PAL_M
;
170 if (std
== V4L2_STD_PAL_Nc
)
171 return ADV7180_INPUT_CONTROL_PAL_COMB_N
;
173 if (std
& V4L2_STD_PAL
)
174 return ADV7180_INPUT_CONTROL_PAL_BG
;
175 if (std
& V4L2_STD_NTSC
)
176 return ADV7180_INPUT_CONTROL_NTSC_M
;
177 if (std
& V4L2_STD_SECAM
)
178 return ADV7180_INPUT_CONTROL_PAL_SECAM
;
183 static u32
adv7180_status_to_v4l2(u8 status1
)
185 if (!(status1
& ADV7180_STATUS1_IN_LOCK
))
186 return V4L2_IN_ST_NO_SIGNAL
;
191 static int __adv7180_status(struct i2c_client
*client
, u32
*status
,
194 int status1
= i2c_smbus_read_byte_data(client
, ADV7180_STATUS1_REG
);
200 *status
= adv7180_status_to_v4l2(status1
);
202 *std
= adv7180_std_to_v4l2(status1
);
207 static inline struct adv7180_state
*to_state(struct v4l2_subdev
*sd
)
209 return container_of(sd
, struct adv7180_state
, sd
);
212 static int adv7180_querystd(struct v4l2_subdev
*sd
, v4l2_std_id
*std
)
214 struct adv7180_state
*state
= to_state(sd
);
215 int err
= mutex_lock_interruptible(&state
->mutex
);
219 /* when we are interrupt driven we know the state */
220 if (!state
->autodetect
|| state
->irq
> 0)
221 *std
= state
->curr_norm
;
223 err
= __adv7180_status(v4l2_get_subdevdata(sd
), NULL
, std
);
225 mutex_unlock(&state
->mutex
);
229 static int adv7180_s_routing(struct v4l2_subdev
*sd
, u32 input
,
230 u32 output
, u32 config
)
232 struct adv7180_state
*state
= to_state(sd
);
233 int ret
= mutex_lock_interruptible(&state
->mutex
);
234 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
239 /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
240 * all inputs and let the card driver take care of validation
242 if ((input
& ADV7180_INPUT_CONTROL_INSEL_MASK
) != input
)
245 ret
= i2c_smbus_read_byte_data(client
, ADV7180_INPUT_CONTROL_REG
);
250 ret
&= ~ADV7180_INPUT_CONTROL_INSEL_MASK
;
251 ret
= i2c_smbus_write_byte_data(client
,
252 ADV7180_INPUT_CONTROL_REG
, ret
| input
);
253 state
->input
= input
;
255 mutex_unlock(&state
->mutex
);
259 static int adv7180_g_input_status(struct v4l2_subdev
*sd
, u32
*status
)
261 struct adv7180_state
*state
= to_state(sd
);
262 int ret
= mutex_lock_interruptible(&state
->mutex
);
266 ret
= __adv7180_status(v4l2_get_subdevdata(sd
), status
, NULL
);
267 mutex_unlock(&state
->mutex
);
271 static int adv7180_g_chip_ident(struct v4l2_subdev
*sd
,
272 struct v4l2_dbg_chip_ident
*chip
)
274 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
276 return v4l2_chip_ident_i2c_client(client
, chip
, V4L2_IDENT_ADV7180
, 0);
279 static int adv7180_s_std(struct v4l2_subdev
*sd
, v4l2_std_id std
)
281 struct adv7180_state
*state
= to_state(sd
);
282 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
283 int ret
= mutex_lock_interruptible(&state
->mutex
);
287 /* all standards -> autodetect */
288 if (std
== V4L2_STD_ALL
) {
290 i2c_smbus_write_byte_data(client
, ADV7180_INPUT_CONTROL_REG
,
291 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
296 __adv7180_status(client
, NULL
, &state
->curr_norm
);
297 state
->autodetect
= true;
299 ret
= v4l2_std_to_adv7180(std
);
303 ret
= i2c_smbus_write_byte_data(client
,
304 ADV7180_INPUT_CONTROL_REG
,
309 state
->curr_norm
= std
;
310 state
->autodetect
= false;
314 mutex_unlock(&state
->mutex
);
318 static int adv7180_s_ctrl(struct v4l2_ctrl
*ctrl
)
320 struct v4l2_subdev
*sd
= to_adv7180_sd(ctrl
);
321 struct adv7180_state
*state
= to_state(sd
);
322 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
323 int ret
= mutex_lock_interruptible(&state
->mutex
);
330 case V4L2_CID_BRIGHTNESS
:
331 ret
= i2c_smbus_write_byte_data(client
, ADV7180_BRI_REG
, val
);
334 /*Hue is inverted according to HSL chart */
335 ret
= i2c_smbus_write_byte_data(client
, ADV7180_HUE_REG
, -val
);
337 case V4L2_CID_CONTRAST
:
338 ret
= i2c_smbus_write_byte_data(client
, ADV7180_CON_REG
, val
);
340 case V4L2_CID_SATURATION
:
342 *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
343 *Let's not confuse the user, everybody understands saturation
345 ret
= i2c_smbus_write_byte_data(client
, ADV7180_SD_SAT_CB_REG
,
349 ret
= i2c_smbus_write_byte_data(client
, ADV7180_SD_SAT_CR_REG
,
356 mutex_unlock(&state
->mutex
);
360 static const struct v4l2_ctrl_ops adv7180_ctrl_ops
= {
361 .s_ctrl
= adv7180_s_ctrl
,
364 static int adv7180_init_controls(struct adv7180_state
*state
)
366 v4l2_ctrl_handler_init(&state
->ctrl_hdl
, 4);
368 v4l2_ctrl_new_std(&state
->ctrl_hdl
, &adv7180_ctrl_ops
,
369 V4L2_CID_BRIGHTNESS
, ADV7180_BRI_MIN
,
370 ADV7180_BRI_MAX
, 1, ADV7180_BRI_DEF
);
371 v4l2_ctrl_new_std(&state
->ctrl_hdl
, &adv7180_ctrl_ops
,
372 V4L2_CID_CONTRAST
, ADV7180_CON_MIN
,
373 ADV7180_CON_MAX
, 1, ADV7180_CON_DEF
);
374 v4l2_ctrl_new_std(&state
->ctrl_hdl
, &adv7180_ctrl_ops
,
375 V4L2_CID_SATURATION
, ADV7180_SAT_MIN
,
376 ADV7180_SAT_MAX
, 1, ADV7180_SAT_DEF
);
377 v4l2_ctrl_new_std(&state
->ctrl_hdl
, &adv7180_ctrl_ops
,
378 V4L2_CID_HUE
, ADV7180_HUE_MIN
,
379 ADV7180_HUE_MAX
, 1, ADV7180_HUE_DEF
);
380 state
->sd
.ctrl_handler
= &state
->ctrl_hdl
;
381 if (state
->ctrl_hdl
.error
) {
382 int err
= state
->ctrl_hdl
.error
;
384 v4l2_ctrl_handler_free(&state
->ctrl_hdl
);
387 v4l2_ctrl_handler_setup(&state
->ctrl_hdl
);
391 static void adv7180_exit_controls(struct adv7180_state
*state
)
393 v4l2_ctrl_handler_free(&state
->ctrl_hdl
);
396 static const struct v4l2_subdev_video_ops adv7180_video_ops
= {
397 .querystd
= adv7180_querystd
,
398 .g_input_status
= adv7180_g_input_status
,
399 .s_routing
= adv7180_s_routing
,
402 static const struct v4l2_subdev_core_ops adv7180_core_ops
= {
403 .g_chip_ident
= adv7180_g_chip_ident
,
404 .s_std
= adv7180_s_std
,
405 .queryctrl
= v4l2_subdev_queryctrl
,
406 .g_ctrl
= v4l2_subdev_g_ctrl
,
407 .s_ctrl
= v4l2_subdev_s_ctrl
,
410 static const struct v4l2_subdev_ops adv7180_ops
= {
411 .core
= &adv7180_core_ops
,
412 .video
= &adv7180_video_ops
,
415 static void adv7180_work(struct work_struct
*work
)
417 struct adv7180_state
*state
= container_of(work
, struct adv7180_state
,
419 struct i2c_client
*client
= v4l2_get_subdevdata(&state
->sd
);
422 mutex_lock(&state
->mutex
);
423 i2c_smbus_write_byte_data(client
, ADV7180_ADI_CTRL_REG
,
424 ADV7180_ADI_CTRL_IRQ_SPACE
);
425 isr3
= i2c_smbus_read_byte_data(client
, ADV7180_ISR3_ADI
);
427 i2c_smbus_write_byte_data(client
, ADV7180_ICR3_ADI
, isr3
);
428 i2c_smbus_write_byte_data(client
, ADV7180_ADI_CTRL_REG
, 0);
430 if (isr3
& ADV7180_IRQ3_AD_CHANGE
&& state
->autodetect
)
431 __adv7180_status(client
, NULL
, &state
->curr_norm
);
432 mutex_unlock(&state
->mutex
);
434 enable_irq(state
->irq
);
437 static irqreturn_t
adv7180_irq(int irq
, void *devid
)
439 struct adv7180_state
*state
= devid
;
441 schedule_work(&state
->work
);
443 disable_irq_nosync(state
->irq
);
448 static int init_device(struct i2c_client
*client
, struct adv7180_state
*state
)
452 /* Initialize adv7180 */
453 /* Enable autodetection */
454 if (state
->autodetect
) {
456 i2c_smbus_write_byte_data(client
, ADV7180_INPUT_CONTROL_REG
,
457 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
463 i2c_smbus_write_byte_data(client
,
464 ADV7180_AUTODETECT_ENABLE_REG
,
465 ADV7180_AUTODETECT_DEFAULT
);
469 ret
= v4l2_std_to_adv7180(state
->curr_norm
);
474 i2c_smbus_write_byte_data(client
, ADV7180_INPUT_CONTROL_REG
,
480 /* ITU-R BT.656-4 compatible */
481 ret
= i2c_smbus_write_byte_data(client
,
482 ADV7180_EXTENDED_OUTPUT_CONTROL_REG
,
483 ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS
);
487 /* Manually set V bit end position in NTSC mode */
488 ret
= i2c_smbus_write_byte_data(client
,
489 ADV7180_NTSC_V_BIT_END_REG
,
490 ADV7180_NTSC_V_BIT_END_MANUAL_NVEND
);
494 /* read current norm */
495 __adv7180_status(client
, NULL
, &state
->curr_norm
);
497 /* register for interrupts */
498 if (state
->irq
> 0) {
499 ret
= request_irq(state
->irq
, adv7180_irq
, 0, KBUILD_MODNAME
,
504 ret
= i2c_smbus_write_byte_data(client
, ADV7180_ADI_CTRL_REG
,
505 ADV7180_ADI_CTRL_IRQ_SPACE
);
509 /* config the Interrupt pin to be active low */
510 ret
= i2c_smbus_write_byte_data(client
, ADV7180_ICONF1_ADI
,
511 ADV7180_ICONF1_ACTIVE_LOW
|
512 ADV7180_ICONF1_PSYNC_ONLY
);
516 ret
= i2c_smbus_write_byte_data(client
, ADV7180_IMR1_ADI
, 0);
520 ret
= i2c_smbus_write_byte_data(client
, ADV7180_IMR2_ADI
, 0);
524 /* enable AD change interrupts interrupts */
525 ret
= i2c_smbus_write_byte_data(client
, ADV7180_IMR3_ADI
,
526 ADV7180_IRQ3_AD_CHANGE
);
530 ret
= i2c_smbus_write_byte_data(client
, ADV7180_IMR4_ADI
, 0);
534 ret
= i2c_smbus_write_byte_data(client
, ADV7180_ADI_CTRL_REG
,
543 static __devinit
int adv7180_probe(struct i2c_client
*client
,
544 const struct i2c_device_id
*id
)
546 struct adv7180_state
*state
;
547 struct v4l2_subdev
*sd
;
550 /* Check if the adapter supports the needed features */
551 if (!i2c_check_functionality(client
->adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
554 v4l_info(client
, "chip found @ 0x%02x (%s)\n",
555 client
->addr
, client
->adapter
->name
);
557 state
= kzalloc(sizeof(struct adv7180_state
), GFP_KERNEL
);
563 state
->irq
= client
->irq
;
564 INIT_WORK(&state
->work
, adv7180_work
);
565 mutex_init(&state
->mutex
);
566 state
->autodetect
= true;
569 v4l2_i2c_subdev_init(sd
, client
, &adv7180_ops
);
571 ret
= adv7180_init_controls(state
);
573 goto err_unreg_subdev
;
574 ret
= init_device(client
, state
);
580 adv7180_exit_controls(state
);
582 mutex_destroy(&state
->mutex
);
583 v4l2_device_unregister_subdev(sd
);
586 printk(KERN_ERR KBUILD_MODNAME
": Failed to probe: %d\n", ret
);
590 static __devexit
int adv7180_remove(struct i2c_client
*client
)
592 struct v4l2_subdev
*sd
= i2c_get_clientdata(client
);
593 struct adv7180_state
*state
= to_state(sd
);
595 if (state
->irq
> 0) {
596 free_irq(client
->irq
, state
);
597 if (cancel_work_sync(&state
->work
)) {
599 * Work was pending, therefore we need to enable
600 * IRQ here to balance the disable_irq() done in the
603 enable_irq(state
->irq
);
607 mutex_destroy(&state
->mutex
);
608 v4l2_device_unregister_subdev(sd
);
613 static const struct i2c_device_id adv7180_id
[] = {
619 static int adv7180_suspend(struct i2c_client
*client
, pm_message_t state
)
623 ret
= i2c_smbus_write_byte_data(client
, ADV7180_PWR_MAN_REG
,
624 ADV7180_PWR_MAN_OFF
);
630 static int adv7180_resume(struct i2c_client
*client
)
632 struct v4l2_subdev
*sd
= i2c_get_clientdata(client
);
633 struct adv7180_state
*state
= to_state(sd
);
636 ret
= i2c_smbus_write_byte_data(client
, ADV7180_PWR_MAN_REG
,
640 ret
= init_device(client
, state
);
647 MODULE_DEVICE_TABLE(i2c
, adv7180_id
);
649 static struct i2c_driver adv7180_driver
= {
651 .owner
= THIS_MODULE
,
652 .name
= KBUILD_MODNAME
,
654 .probe
= adv7180_probe
,
655 .remove
= __devexit_p(adv7180_remove
),
657 .suspend
= adv7180_suspend
,
658 .resume
= adv7180_resume
,
660 .id_table
= adv7180_id
,
663 module_i2c_driver(adv7180_driver
);
665 MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
666 MODULE_AUTHOR("Mocean Laboratories");
667 MODULE_LICENSE("GPL v2");