2 * Support for mt9m114 Camera Sensor.
4 * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 #include <linux/module.h>
23 #include <linux/types.h>
24 #include <linux/kernel.h>
26 #include <linux/string.h>
27 #include <linux/errno.h>
28 #include <linux/init.h>
29 #include <linux/kmod.h>
30 #include <linux/device.h>
32 #include <linux/slab.h>
33 #include <linux/delay.h>
34 #include <linux/i2c.h>
35 #include <linux/gpio.h>
36 #include <linux/acpi.h>
37 #include "../include/linux/atomisp_gmin_platform.h"
38 #include <media/v4l2-device.h>
42 #define to_mt9m114_sensor(sd) container_of(sd, struct mt9m114_device, sd)
45 * TODO: use debug parameter to actually define when debug messages should
50 module_param(debug
, int, 0644);
51 MODULE_PARM_DESC(debug
, "Debug level (0-1)");
53 static int mt9m114_t_vflip(struct v4l2_subdev
*sd
, int value
);
54 static int mt9m114_t_hflip(struct v4l2_subdev
*sd
, int value
);
55 static int mt9m114_wait_state(struct i2c_client
*client
, int timeout
);
58 mt9m114_read_reg(struct i2c_client
*client
, u16 data_length
, u32 reg
, u32
*val
)
61 struct i2c_msg msg
[2];
62 unsigned char data
[4];
64 if (!client
->adapter
) {
65 v4l2_err(client
, "%s error, no client->adapter\n", __func__
);
69 if (data_length
!= MISENSOR_8BIT
&& data_length
!= MISENSOR_16BIT
70 && data_length
!= MISENSOR_32BIT
) {
71 v4l2_err(client
, "%s error, invalid data length\n", __func__
);
75 msg
[0].addr
= client
->addr
;
77 msg
[0].len
= MSG_LEN_OFFSET
;
80 /* high byte goes out first */
81 data
[0] = (u16
) (reg
>> 8);
82 data
[1] = (u16
) (reg
& 0xff);
84 msg
[1].addr
= client
->addr
;
85 msg
[1].len
= data_length
;
86 msg
[1].flags
= I2C_M_RD
;
89 err
= i2c_transfer(client
->adapter
, msg
, 2);
93 /* high byte comes first */
94 if (data_length
== MISENSOR_8BIT
)
96 else if (data_length
== MISENSOR_16BIT
)
97 *val
= data
[1] + (data
[0] << 8);
99 *val
= data
[3] + (data
[2] << 8) +
100 (data
[1] << 16) + (data
[0] << 24);
105 dev_err(&client
->dev
, "read from offset 0x%x error %d", reg
, err
);
110 mt9m114_write_reg(struct i2c_client
*client
, u16 data_length
, u16 reg
, u32 val
)
114 unsigned char data
[6] = {0};
118 if (!client
->adapter
) {
119 v4l2_err(client
, "%s error, no client->adapter\n", __func__
);
123 if (data_length
!= MISENSOR_8BIT
&& data_length
!= MISENSOR_16BIT
124 && data_length
!= MISENSOR_32BIT
) {
125 v4l2_err(client
, "%s error, invalid data_length\n", __func__
);
129 memset(&msg
, 0, sizeof(msg
));
132 msg
.addr
= client
->addr
;
134 msg
.len
= 2 + data_length
;
137 /* high byte goes out first */
139 *wreg
= cpu_to_be16(reg
);
141 if (data_length
== MISENSOR_8BIT
) {
143 } else if (data_length
== MISENSOR_16BIT
) {
144 u16
*wdata
= (u16
*)&data
[2];
145 *wdata
= be16_to_cpu((u16
)val
);
148 u32
*wdata
= (u32
*)&data
[2];
149 *wdata
= be32_to_cpu(val
);
152 num_msg
= i2c_transfer(client
->adapter
, &msg
, 1);
155 * HACK: Need some delay here for Rev 2 sensors otherwise some
156 * registers do not seem to load correctly.
163 dev_err(&client
->dev
, "write error: wrote 0x%x to offset 0x%x error %d",
165 if (retry
<= I2C_RETRY_COUNT
) {
166 dev_dbg(&client
->dev
, "retrying... %d", retry
);
176 * misensor_rmw_reg - Read/Modify/Write a value to a register in the sensor
178 * @client: i2c driver client structure
179 * @data_length: 8/16/32-bits length
180 * @reg: register address
181 * @mask: masked out bits
184 * Read/modify/write a value to a register in the sensor device.
185 * Returns zero if successful, or non-zero otherwise.
188 misensor_rmw_reg(struct i2c_client
*client
, u16 data_length
, u16 reg
,
194 /* Exit when no mask */
198 /* @mask must not exceed data length */
199 switch (data_length
) {
211 /* Wrong @data_length */
215 err
= mt9m114_read_reg(client
, data_length
, reg
, &val
);
217 v4l2_err(client
, "misensor_rmw_reg error exit, read failed\n");
224 * Perform the OR function if the @set exists.
225 * Shift @set value to target bit location. @set should set only
226 * bits included in @mask.
228 * REVISIT: This function expects @set to be non-shifted. Its shift
229 * value is then defined to be equal to mask's LSB position.
230 * How about to inform values in their right offset position and avoid
231 * this unneeded shift operation?
233 set
<<= ffs(mask
) - 1;
236 err
= mt9m114_write_reg(client
, data_length
, reg
, val
);
238 v4l2_err(client
, "misensor_rmw_reg error exit, write failed\n");
246 static int __mt9m114_flush_reg_array(struct i2c_client
*client
,
247 struct mt9m114_write_ctrl
*ctrl
)
250 const int num_msg
= 1;
254 if (ctrl
->index
== 0)
258 msg
.addr
= client
->addr
;
260 msg
.len
= 2 + ctrl
->index
;
261 ctrl
->buffer
.addr
= cpu_to_be16(ctrl
->buffer
.addr
);
262 msg
.buf
= (u8
*)&ctrl
->buffer
;
264 ret
= i2c_transfer(client
->adapter
, &msg
, num_msg
);
265 if (ret
!= num_msg
) {
266 if (++retry
<= I2C_RETRY_COUNT
) {
267 dev_dbg(&client
->dev
, "retrying... %d\n", retry
);
271 dev_err(&client
->dev
, "%s: i2c transfer error\n", __func__
);
278 * REVISIT: Previously we had a delay after writing data to sensor.
279 * But it was removed as our tests have shown it is not necessary
286 static int __mt9m114_buf_reg_array(struct i2c_client
*client
,
287 struct mt9m114_write_ctrl
*ctrl
,
288 const struct misensor_reg
*next
)
294 /* Insufficient buffer? Let's flush and get more free space. */
295 if (ctrl
->index
+ next
->length
>= MT9M114_MAX_WRITE_BUF_SIZE
) {
296 err
= __mt9m114_flush_reg_array(client
, ctrl
);
301 switch (next
->length
) {
303 ctrl
->buffer
.data
[ctrl
->index
] = (u8
)next
->val
;
306 data16
= (u16
*)&ctrl
->buffer
.data
[ctrl
->index
];
307 *data16
= cpu_to_be16((u16
)next
->val
);
310 data32
= (u32
*)&ctrl
->buffer
.data
[ctrl
->index
];
311 *data32
= cpu_to_be32(next
->val
);
317 /* When first item is added, we need to store its starting address */
318 if (ctrl
->index
== 0)
319 ctrl
->buffer
.addr
= next
->reg
;
321 ctrl
->index
+= next
->length
;
327 __mt9m114_write_reg_is_consecutive(struct i2c_client
*client
,
328 struct mt9m114_write_ctrl
*ctrl
,
329 const struct misensor_reg
*next
)
331 if (ctrl
->index
== 0)
334 return ctrl
->buffer
.addr
+ ctrl
->index
== next
->reg
;
338 * mt9m114_write_reg_array - Initializes a list of mt9m114 registers
339 * @client: i2c driver client structure
340 * @reglist: list of registers to be written
341 * @poll: completion polling requirement
342 * This function initializes a list of registers. When consecutive addresses
343 * are found in a row on the list, this function creates a buffer and sends
344 * consecutive data in a single i2c_transfer().
346 * __mt9m114_flush_reg_array, __mt9m114_buf_reg_array() and
347 * __mt9m114_write_reg_is_consecutive() are internal functions to
348 * mt9m114_write_reg_array() and should be not used anywhere else.
351 static int mt9m114_write_reg_array(struct i2c_client
*client
,
352 const struct misensor_reg
*reglist
,
355 const struct misensor_reg
*next
= reglist
;
356 struct mt9m114_write_ctrl ctrl
;
359 if (poll
== PRE_POLLING
) {
360 err
= mt9m114_wait_state(client
, MT9M114_WAIT_STAT_TIMEOUT
);
366 for (; next
->length
!= MISENSOR_TOK_TERM
; next
++) {
367 switch (next
->length
& MISENSOR_TOK_MASK
) {
368 case MISENSOR_TOK_DELAY
:
369 err
= __mt9m114_flush_reg_array(client
, &ctrl
);
374 case MISENSOR_TOK_RMW
:
375 err
= __mt9m114_flush_reg_array(client
, &ctrl
);
376 err
|= misensor_rmw_reg(client
,
379 next
->reg
, next
->val
,
382 dev_err(&client
->dev
, "%s read err. aborted\n",
389 * If next address is not consecutive, data needs to be
390 * flushed before proceed.
392 if (!__mt9m114_write_reg_is_consecutive(client
, &ctrl
,
394 err
= __mt9m114_flush_reg_array(client
, &ctrl
);
398 err
= __mt9m114_buf_reg_array(client
, &ctrl
, next
);
400 v4l2_err(client
, "%s: write error, aborted\n",
408 err
= __mt9m114_flush_reg_array(client
, &ctrl
);
412 if (poll
== POST_POLLING
)
413 return mt9m114_wait_state(client
, MT9M114_WAIT_STAT_TIMEOUT
);
418 static int mt9m114_wait_state(struct i2c_client
*client
, int timeout
)
423 while (timeout
-- > 0) {
424 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
, 0x0080, &val
);
427 if ((val
& 0x2) == 0)
436 static int mt9m114_set_suspend(struct v4l2_subdev
*sd
)
438 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
439 return mt9m114_write_reg_array(client
,
440 mt9m114_standby_reg
, POST_POLLING
);
443 static int mt9m114_init_common(struct v4l2_subdev
*sd
)
445 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
447 return mt9m114_write_reg_array(client
, mt9m114_common
, PRE_POLLING
);
450 static int power_ctrl(struct v4l2_subdev
*sd
, bool flag
)
453 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
455 if (!dev
|| !dev
->platform_data
)
458 /* Non-gmin platforms use the legacy callback */
459 if (dev
->platform_data
->power_ctrl
)
460 return dev
->platform_data
->power_ctrl(sd
, flag
);
463 ret
= dev
->platform_data
->v2p8_ctrl(sd
, 1);
465 ret
= dev
->platform_data
->v1p8_ctrl(sd
, 1);
467 ret
= dev
->platform_data
->v2p8_ctrl(sd
, 0);
470 ret
= dev
->platform_data
->v2p8_ctrl(sd
, 0);
471 ret
= dev
->platform_data
->v1p8_ctrl(sd
, 0);
476 static int gpio_ctrl(struct v4l2_subdev
*sd
, bool flag
)
479 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
481 if (!dev
|| !dev
->platform_data
)
484 /* Non-gmin platforms use the legacy callback */
485 if (dev
->platform_data
->gpio_ctrl
)
486 return dev
->platform_data
->gpio_ctrl(sd
, flag
);
488 /* Note: current modules wire only one GPIO signal (RESET#),
489 * but the schematic wires up two to the connector. BIOS
490 * versions have been unfortunately inconsistent with which
491 * ACPI index RESET# is on, so hit both */
494 ret
= dev
->platform_data
->gpio0_ctrl(sd
, 0);
495 ret
= dev
->platform_data
->gpio1_ctrl(sd
, 0);
497 ret
|= dev
->platform_data
->gpio0_ctrl(sd
, 1);
498 ret
|= dev
->platform_data
->gpio1_ctrl(sd
, 1);
500 ret
= dev
->platform_data
->gpio0_ctrl(sd
, 0);
501 ret
= dev
->platform_data
->gpio1_ctrl(sd
, 0);
506 static int power_up(struct v4l2_subdev
*sd
)
508 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
509 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
512 if (NULL
== dev
->platform_data
) {
513 dev_err(&client
->dev
, "no camera_sensor_platform_data");
518 ret
= power_ctrl(sd
, 1);
522 /* flis clock control */
523 ret
= dev
->platform_data
->flisclk_ctrl(sd
, 1);
528 ret
= gpio_ctrl(sd
, 1);
530 dev_err(&client
->dev
, "gpio failed 1\n");
532 * according to DS, 44ms is needed between power up and first i2c
540 dev
->platform_data
->flisclk_ctrl(sd
, 0);
543 dev_err(&client
->dev
, "sensor power-up failed\n");
548 static int power_down(struct v4l2_subdev
*sd
)
550 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
551 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
554 if (NULL
== dev
->platform_data
) {
555 dev_err(&client
->dev
, "no camera_sensor_platform_data");
559 ret
= dev
->platform_data
->flisclk_ctrl(sd
, 0);
561 dev_err(&client
->dev
, "flisclk failed\n");
564 ret
= gpio_ctrl(sd
, 0);
566 dev_err(&client
->dev
, "gpio failed 1\n");
569 ret
= power_ctrl(sd
, 0);
571 dev_err(&client
->dev
, "vprog failed.\n");
573 /*according to DS, 20ms is needed after power down*/
579 static int mt9m114_s_power(struct v4l2_subdev
*sd
, int power
)
582 return power_down(sd
);
587 return mt9m114_init_common(sd
);
592 * distance - calculate the distance
597 * Get the gap between resolution and w/h.
598 * res->width/height smaller than w/h wouldn't be considered.
599 * Returns the value of gap or -1 if fail.
601 #define LARGEST_ALLOWED_RATIO_MISMATCH 600
602 static int distance(struct mt9m114_res_struct
const *res
, u32 w
, u32 h
)
604 unsigned int w_ratio
;
605 unsigned int h_ratio
;
610 w_ratio
= (res
->width
<< 13) / w
;
613 h_ratio
= (res
->height
<< 13) / h
;
616 match
= abs(((w_ratio
<< 13) / h_ratio
) - 8192);
618 if ((w_ratio
< 8192) || (h_ratio
< 8192) ||
619 (match
> LARGEST_ALLOWED_RATIO_MISMATCH
))
622 return w_ratio
+ h_ratio
;
625 /* Return the nearest higher resolution index */
626 static int nearest_resolution_index(int w
, int h
)
631 int min_dist
= INT_MAX
;
632 const struct mt9m114_res_struct
*tmp_res
= NULL
;
634 for (i
= 0; i
< ARRAY_SIZE(mt9m114_res
); i
++) {
635 tmp_res
= &mt9m114_res
[i
];
636 dist
= distance(tmp_res
, w
, h
);
639 if (dist
< min_dist
) {
648 static int mt9m114_try_res(u32
*w
, u32
*h
)
652 if ((*w
> MT9M114_RES_960P_SIZE_H
)
653 || (*h
> MT9M114_RES_960P_SIZE_V
)) {
654 *w
= MT9M114_RES_960P_SIZE_H
;
655 *h
= MT9M114_RES_960P_SIZE_V
;
657 idx
= nearest_resolution_index(*w
, *h
);
660 * nearest_resolution_index() doesn't return smaller
661 * resolutions. If it fails, it means the requested
662 * resolution is higher than wecan support. Fallback
663 * to highest possible resolution in this case.
666 idx
= ARRAY_SIZE(mt9m114_res
) - 1;
668 *w
= mt9m114_res
[idx
].width
;
669 *h
= mt9m114_res
[idx
].height
;
675 static struct mt9m114_res_struct
*mt9m114_to_res(u32 w
, u32 h
)
679 for (index
= 0; index
< N_RES
; index
++) {
680 if ((mt9m114_res
[index
].width
== w
) &&
681 (mt9m114_res
[index
].height
== h
))
689 return &mt9m114_res
[index
];
692 static int mt9m114_res2size(struct v4l2_subdev
*sd
, int *h_size
, int *v_size
)
694 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
695 unsigned short hsize
;
696 unsigned short vsize
;
699 case MT9M114_RES_736P
:
700 hsize
= MT9M114_RES_736P_SIZE_H
;
701 vsize
= MT9M114_RES_736P_SIZE_V
;
703 case MT9M114_RES_864P
:
704 hsize
= MT9M114_RES_864P_SIZE_H
;
705 vsize
= MT9M114_RES_864P_SIZE_V
;
707 case MT9M114_RES_960P
:
708 hsize
= MT9M114_RES_960P_SIZE_H
;
709 vsize
= MT9M114_RES_960P_SIZE_V
;
712 v4l2_err(sd
, "%s: Resolution 0x%08x unknown\n", __func__
,
725 static int mt9m114_get_intg_factor(struct i2c_client
*client
,
726 struct camera_mipi_info
*info
,
727 const struct mt9m114_res_struct
*res
)
729 struct atomisp_sensor_mode_data
*buf
= &info
->data
;
736 ret
= mt9m114_read_reg(client
, MISENSOR_32BIT
,
737 REG_PIXEL_CLK
, ®_val
);
740 buf
->vt_pix_clk_freq_mhz
= reg_val
;
742 /* get integration time */
743 buf
->coarse_integration_time_min
= MT9M114_COARSE_INTG_TIME_MIN
;
744 buf
->coarse_integration_time_max_margin
=
745 MT9M114_COARSE_INTG_TIME_MAX_MARGIN
;
747 buf
->fine_integration_time_min
= MT9M114_FINE_INTG_TIME_MIN
;
748 buf
->fine_integration_time_max_margin
=
749 MT9M114_FINE_INTG_TIME_MAX_MARGIN
;
751 buf
->fine_integration_time_def
= MT9M114_FINE_INTG_TIME_MIN
;
753 buf
->frame_length_lines
= res
->lines_per_frame
;
754 buf
->line_length_pck
= res
->pixels_per_line
;
755 buf
->read_mode
= res
->bin_mode
;
757 /* get the cropping and output resolution to ISP for this mode. */
758 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
759 REG_H_START
, ®_val
);
762 buf
->crop_horizontal_start
= reg_val
;
764 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
765 REG_V_START
, ®_val
);
768 buf
->crop_vertical_start
= reg_val
;
770 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
771 REG_H_END
, ®_val
);
774 buf
->crop_horizontal_end
= reg_val
;
776 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
777 REG_V_END
, ®_val
);
780 buf
->crop_vertical_end
= reg_val
;
782 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
783 REG_WIDTH
, ®_val
);
786 buf
->output_width
= reg_val
;
788 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
789 REG_HEIGHT
, ®_val
);
792 buf
->output_height
= reg_val
;
794 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
795 REG_TIMING_HTS
, ®_val
);
798 buf
->line_length_pck
= reg_val
;
800 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
801 REG_TIMING_VTS
, ®_val
);
804 buf
->frame_length_lines
= reg_val
;
806 buf
->binning_factor_x
= res
->bin_factor_x
?
807 res
->bin_factor_x
: 1;
808 buf
->binning_factor_y
= res
->bin_factor_y
?
809 res
->bin_factor_y
: 1;
813 static int mt9m114_get_fmt(struct v4l2_subdev
*sd
,
814 struct v4l2_subdev_pad_config
*cfg
,
815 struct v4l2_subdev_format
*format
)
817 struct v4l2_mbus_framefmt
*fmt
= &format
->format
;
822 fmt
->code
= MEDIA_BUS_FMT_SGRBG10_1X10
;
824 ret
= mt9m114_res2size(sd
, &width
, &height
);
828 fmt
->height
= height
;
833 static int mt9m114_set_fmt(struct v4l2_subdev
*sd
,
834 struct v4l2_subdev_pad_config
*cfg
,
835 struct v4l2_subdev_format
*format
)
837 struct v4l2_mbus_framefmt
*fmt
= &format
->format
;
838 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
839 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
840 struct mt9m114_res_struct
*res_index
;
841 u32 width
= fmt
->width
;
842 u32 height
= fmt
->height
;
843 struct camera_mipi_info
*mt9m114_info
= NULL
;
849 dev
->first_exp
= MT9M114_DEFAULT_FIRST_EXP
;
851 mt9m114_info
= v4l2_get_subdev_hostdata(sd
);
852 if (mt9m114_info
== NULL
)
855 mt9m114_try_res(&width
, &height
);
856 if (format
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
860 res_index
= mt9m114_to_res(width
, height
);
863 if (unlikely(!res_index
)) {
868 switch (res_index
->res
) {
869 case MT9M114_RES_736P
:
870 ret
= mt9m114_write_reg_array(c
, mt9m114_736P_init
, NO_POLLING
);
871 ret
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
872 MISENSOR_R_MODE_MASK
, MISENSOR_NORMAL_SET
);
874 case MT9M114_RES_864P
:
875 ret
= mt9m114_write_reg_array(c
, mt9m114_864P_init
, NO_POLLING
);
876 ret
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
877 MISENSOR_R_MODE_MASK
, MISENSOR_NORMAL_SET
);
879 case MT9M114_RES_960P
:
880 ret
= mt9m114_write_reg_array(c
, mt9m114_976P_init
, NO_POLLING
);
881 /* set sensor read_mode to Normal */
882 ret
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
883 MISENSOR_R_MODE_MASK
, MISENSOR_NORMAL_SET
);
886 v4l2_err(sd
, "set resolution: %d failed!\n", res_index
->res
);
893 ret
= mt9m114_write_reg_array(c
, mt9m114_chgstat_reg
, POST_POLLING
);
897 if (mt9m114_set_suspend(sd
))
900 if (dev
->res
!= res_index
->res
) {
903 /* Switch to different size */
905 dev
->nctx
= 0x00; /* Set for context A */
908 * Context B is used for resolutions larger than 640x480
909 * Using YUV for Context B.
911 dev
->nctx
= 0x01; /* set for context B */
915 * Marked current sensor res as being "used"
917 * REVISIT: We don't need to use an "used" field on each mode
918 * list entry to know which mode is selected. If this
919 * information is really necessary, how about to use a single
920 * variable on sensor dev struct?
922 for (index
= 0; index
< N_RES
; index
++) {
923 if ((width
== mt9m114_res
[index
].width
) &&
924 (height
== mt9m114_res
[index
].height
)) {
925 mt9m114_res
[index
].used
= true;
928 mt9m114_res
[index
].used
= false;
931 ret
= mt9m114_get_intg_factor(c
, mt9m114_info
,
932 &mt9m114_res
[res_index
->res
]);
934 dev_err(&c
->dev
, "failed to get integration_factor\n");
938 * mt9m114 - we don't poll for context switch
939 * because it does not happen with streaming disabled.
941 dev
->res
= res_index
->res
;
944 fmt
->height
= height
;
945 fmt
->code
= MEDIA_BUS_FMT_SGRBG10_1X10
;
949 /* TODO: Update to SOC functions, remove exposure and gain */
950 static int mt9m114_g_focal(struct v4l2_subdev
*sd
, s32
*val
)
952 *val
= (MT9M114_FOCAL_LENGTH_NUM
<< 16) | MT9M114_FOCAL_LENGTH_DEM
;
956 static int mt9m114_g_fnumber(struct v4l2_subdev
*sd
, s32
*val
)
958 /*const f number for mt9m114*/
959 *val
= (MT9M114_F_NUMBER_DEFAULT_NUM
<< 16) | MT9M114_F_NUMBER_DEM
;
963 static int mt9m114_g_fnumber_range(struct v4l2_subdev
*sd
, s32
*val
)
965 *val
= (MT9M114_F_NUMBER_DEFAULT_NUM
<< 24) |
966 (MT9M114_F_NUMBER_DEM
<< 16) |
967 (MT9M114_F_NUMBER_DEFAULT_NUM
<< 8) | MT9M114_F_NUMBER_DEM
;
971 /* Horizontal flip the image. */
972 static int mt9m114_g_hflip(struct v4l2_subdev
*sd
, s32
*val
)
974 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
977 ret
= mt9m114_read_reg(c
, MISENSOR_16BIT
,
978 (u32
)MISENSOR_READ_MODE
, &data
);
981 *val
= !!(data
& MISENSOR_HFLIP_MASK
);
986 static int mt9m114_g_vflip(struct v4l2_subdev
*sd
, s32
*val
)
988 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
992 ret
= mt9m114_read_reg(c
, MISENSOR_16BIT
,
993 (u32
)MISENSOR_READ_MODE
, &data
);
996 *val
= !!(data
& MISENSOR_VFLIP_MASK
);
1001 static long mt9m114_s_exposure(struct v4l2_subdev
*sd
,
1002 struct atomisp_exposure
*exposure
)
1004 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
1005 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1007 unsigned int coarse_integration
= 0;
1008 unsigned int fine_integration
= 0;
1009 unsigned int FLines
= 0;
1010 unsigned int FrameLengthLines
= 0; /* ExposureTime.FrameLengthLines; */
1011 unsigned int AnalogGain
, DigitalGain
;
1012 u32 AnalogGainToWrite
= 0;
1013 u16 exposure_local
[3];
1015 dev_dbg(&client
->dev
, "%s(0x%X 0x%X 0x%X)\n", __func__
,
1016 exposure
->integration_time
[0], exposure
->gain
[0],
1019 coarse_integration
= exposure
->integration_time
[0];
1020 /* fine_integration = ExposureTime.FineIntegrationTime; */
1021 /* FrameLengthLines = ExposureTime.FrameLengthLines; */
1022 FLines
= mt9m114_res
[dev
->res
].lines_per_frame
;
1023 AnalogGain
= exposure
->gain
[0];
1024 DigitalGain
= exposure
->gain
[1];
1025 if (!dev
->streamon
) {
1026 /*Save the first exposure values while stream is off*/
1027 dev
->first_exp
= coarse_integration
;
1028 dev
->first_gain
= AnalogGain
;
1029 dev
->first_diggain
= DigitalGain
;
1031 /* DigitalGain = 0x400 * (((u16) DigitalGain) >> 8) +
1032 ((unsigned int)(0x400 * (((u16) DigitalGain) & 0xFF)) >>8); */
1034 /* set frame length */
1035 if (FLines
< coarse_integration
+ 6)
1036 FLines
= coarse_integration
+ 6;
1037 if (FLines
< FrameLengthLines
)
1038 FLines
= FrameLengthLines
;
1039 ret
= mt9m114_write_reg(client
, MISENSOR_16BIT
, 0x300A, FLines
);
1041 v4l2_err(client
, "%s: fail to set FLines\n", __func__
);
1045 /* set coarse/fine integration */
1046 exposure_local
[0] = REG_EXPO_COARSE
;
1047 exposure_local
[1] = (u16
)coarse_integration
;
1048 exposure_local
[2] = (u16
)fine_integration
;
1049 /* 3A provide real exposure time.
1050 should not translate to any value here. */
1051 ret
= mt9m114_write_reg(client
, MISENSOR_16BIT
,
1052 REG_EXPO_COARSE
, (u16
)(coarse_integration
));
1054 v4l2_err(client
, "%s: fail to set exposure time\n", __func__
);
1059 // set analog/digital gain
1063 AnalogGainToWrite = 0x0;
1066 AnalogGainToWrite = 0x20;
1069 AnalogGainToWrite = 0x60;
1072 AnalogGainToWrite = 0xA0;
1075 AnalogGainToWrite = 0xE0;
1078 AnalogGainToWrite = 0x20;
1082 if (DigitalGain
>= 16 || DigitalGain
<= 1)
1084 /* AnalogGainToWrite =
1085 (u16)((DigitalGain << 12) | AnalogGainToWrite); */
1086 AnalogGainToWrite
= (u16
)((DigitalGain
<< 12) | (u16
)AnalogGain
);
1087 ret
= mt9m114_write_reg(client
, MISENSOR_16BIT
,
1088 REG_GAIN
, AnalogGainToWrite
);
1090 v4l2_err(client
, "%s: fail to set AnalogGainToWrite\n",
1098 static long mt9m114_ioctl(struct v4l2_subdev
*sd
, unsigned int cmd
, void *arg
)
1102 case ATOMISP_IOC_S_EXPOSURE
:
1103 return mt9m114_s_exposure(sd
, arg
);
1111 /* This returns the exposure time being used. This should only be used
1112 for filling in EXIF data, not for actual image processing. */
1113 static int mt9m114_g_exposure(struct v4l2_subdev
*sd
, s32
*value
)
1115 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
1119 /* the fine integration time is currently not calculated */
1120 ret
= mt9m114_read_reg(client
, MISENSOR_16BIT
,
1121 REG_EXPO_COARSE
, &coarse
);
1130 * This function will return the sensor supported max exposure zone number.
1131 * the sensor which supports max exposure zone number is 1.
1133 static int mt9m114_g_exposure_zone_num(struct v4l2_subdev
*sd
, s32
*val
)
1141 * set exposure metering, average/center_weighted/spot/matrix.
1143 static int mt9m114_s_exposure_metering(struct v4l2_subdev
*sd
, s32 val
)
1145 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
1149 case V4L2_EXPOSURE_METERING_SPOT
:
1150 ret
= mt9m114_write_reg_array(client
, mt9m114_exp_average
,
1153 dev_err(&client
->dev
, "write exp_average reg err.\n");
1157 case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED
:
1159 ret
= mt9m114_write_reg_array(client
, mt9m114_exp_center
,
1162 dev_err(&client
->dev
, "write exp_default reg err");
1171 * This function is for touch exposure feature.
1173 static int mt9m114_s_exposure_selection(struct v4l2_subdev
*sd
,
1174 struct v4l2_subdev_pad_config
*cfg
,
1175 struct v4l2_subdev_selection
*sel
)
1177 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
1178 struct misensor_reg exp_reg
;
1180 int grid_width
, grid_height
;
1181 int grid_left
, grid_top
, grid_right
, grid_bottom
;
1182 int win_left
, win_top
, win_right
, win_bottom
;
1186 if (sel
->which
!= V4L2_SUBDEV_FORMAT_TRY
&&
1187 sel
->which
!= V4L2_SUBDEV_FORMAT_ACTIVE
)
1190 grid_left
= sel
->r
.left
;
1191 grid_top
= sel
->r
.top
;
1192 grid_right
= sel
->r
.left
+ sel
->r
.width
- 1;
1193 grid_bottom
= sel
->r
.top
+ sel
->r
.height
- 1;
1195 ret
= mt9m114_res2size(sd
, &width
, &height
);
1199 grid_width
= width
/ 5;
1200 grid_height
= height
/ 5;
1202 if (grid_width
&& grid_height
) {
1203 win_left
= grid_left
/ grid_width
;
1204 win_top
= grid_top
/ grid_height
;
1205 win_right
= grid_right
/ grid_width
;
1206 win_bottom
= grid_bottom
/ grid_height
;
1208 dev_err(&client
->dev
, "Incorrect exp grid.\n");
1212 win_left
= clamp_t(int, win_left
, 0, 4);
1213 win_top
= clamp_t(int, win_top
, 0, 4);
1214 win_right
= clamp_t(int, win_right
, 0, 4);
1215 win_bottom
= clamp_t(int, win_bottom
, 0, 4);
1217 ret
= mt9m114_write_reg_array(client
, mt9m114_exp_average
, NO_POLLING
);
1219 dev_err(&client
->dev
, "write exp_average reg err.\n");
1223 for (i
= win_top
; i
<= win_bottom
; i
++) {
1224 for (j
= win_left
; j
<= win_right
; j
++) {
1225 exp_reg
= mt9m114_exp_win
[i
][j
];
1227 ret
= mt9m114_write_reg(client
, exp_reg
.length
,
1228 exp_reg
.reg
, exp_reg
.val
);
1230 dev_err(&client
->dev
, "write exp_reg err.\n");
1240 static int mt9m114_g_bin_factor_x(struct v4l2_subdev
*sd
, s32
*val
)
1242 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1244 *val
= mt9m114_res
[dev
->res
].bin_factor_x
;
1249 static int mt9m114_g_bin_factor_y(struct v4l2_subdev
*sd
, s32
*val
)
1251 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1253 *val
= mt9m114_res
[dev
->res
].bin_factor_y
;
1258 static int mt9m114_s_ev(struct v4l2_subdev
*sd
, s32 val
)
1260 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
1264 /* EV value only support -2 to 2
1265 * 0: 0x37, 1:0x47, 2:0x57, -1:0x27, -2:0x17
1267 if (val
< -2 || val
> 2)
1270 dev_dbg(&c
->dev
, "%s val:%d luma:0x%x\n", __func__
, val
, luma
);
1271 err
= mt9m114_write_reg(c
, MISENSOR_16BIT
, 0x098E, 0xC87A);
1273 dev_err(&c
->dev
, "%s logic addr access error\n", __func__
);
1276 err
= mt9m114_write_reg(c
, MISENSOR_8BIT
, 0xC87A, (u32
)luma
);
1278 dev_err(&c
->dev
, "%s write target_average_luma failed\n",
1287 static int mt9m114_g_ev(struct v4l2_subdev
*sd
, s32
*val
)
1289 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
1293 err
= mt9m114_write_reg(c
, MISENSOR_16BIT
, 0x098E, 0xC87A);
1295 dev_err(&c
->dev
, "%s logic addr access error\n", __func__
);
1298 err
= mt9m114_read_reg(c
, MISENSOR_8BIT
, 0xC87A, &luma
);
1300 dev_err(&c
->dev
, "%s read target_average_luma failed\n",
1306 *val
= (s32
)luma
- 2;
1307 dev_dbg(&c
->dev
, "%s val:%d\n", __func__
, *val
);
1313 * mt9m114 now can not support 3a_lock
1315 static int mt9m114_s_3a_lock(struct v4l2_subdev
*sd
, s32 val
)
1321 static int mt9m114_g_3a_lock(struct v4l2_subdev
*sd
, s32
*val
)
1324 return V4L2_LOCK_EXPOSURE
| V4L2_LOCK_WHITE_BALANCE
1329 static int mt9m114_s_ctrl(struct v4l2_ctrl
*ctrl
)
1331 struct mt9m114_device
*dev
=
1332 container_of(ctrl
->handler
, struct mt9m114_device
, ctrl_handler
);
1333 struct i2c_client
*client
= v4l2_get_subdevdata(&dev
->sd
);
1337 case V4L2_CID_VFLIP
:
1338 dev_dbg(&client
->dev
, "%s: CID_VFLIP:%d.\n",
1339 __func__
, ctrl
->val
);
1340 ret
= mt9m114_t_vflip(&dev
->sd
, ctrl
->val
);
1342 case V4L2_CID_HFLIP
:
1343 dev_dbg(&client
->dev
, "%s: CID_HFLIP:%d.\n",
1344 __func__
, ctrl
->val
);
1345 ret
= mt9m114_t_hflip(&dev
->sd
, ctrl
->val
);
1348 case V4L2_CID_EXPOSURE_METERING
:
1349 ret
= mt9m114_s_exposure_metering(&dev
->sd
, ctrl
->val
);
1352 case V4L2_CID_EXPOSURE
:
1353 ret
= mt9m114_s_ev(&dev
->sd
, ctrl
->val
);
1355 case V4L2_CID_3A_LOCK
:
1356 ret
= mt9m114_s_3a_lock(&dev
->sd
, ctrl
->val
);
1364 static int mt9m114_g_volatile_ctrl(struct v4l2_ctrl
*ctrl
)
1366 struct mt9m114_device
*dev
=
1367 container_of(ctrl
->handler
, struct mt9m114_device
, ctrl_handler
);
1371 case V4L2_CID_VFLIP
:
1372 ret
= mt9m114_g_vflip(&dev
->sd
, &ctrl
->val
);
1374 case V4L2_CID_HFLIP
:
1375 ret
= mt9m114_g_hflip(&dev
->sd
, &ctrl
->val
);
1377 case V4L2_CID_FOCAL_ABSOLUTE
:
1378 ret
= mt9m114_g_focal(&dev
->sd
, &ctrl
->val
);
1380 case V4L2_CID_FNUMBER_ABSOLUTE
:
1381 ret
= mt9m114_g_fnumber(&dev
->sd
, &ctrl
->val
);
1383 case V4L2_CID_FNUMBER_RANGE
:
1384 ret
= mt9m114_g_fnumber_range(&dev
->sd
, &ctrl
->val
);
1386 case V4L2_CID_EXPOSURE_ABSOLUTE
:
1387 ret
= mt9m114_g_exposure(&dev
->sd
, &ctrl
->val
);
1390 case V4L2_CID_EXPOSURE_ZONE_NUM
:
1391 ret
= mt9m114_g_exposure_zone_num(&dev
->sd
, &ctrl
->val
);
1394 case V4L2_CID_BIN_FACTOR_HORZ
:
1395 ret
= mt9m114_g_bin_factor_x(&dev
->sd
, &ctrl
->val
);
1397 case V4L2_CID_BIN_FACTOR_VERT
:
1398 ret
= mt9m114_g_bin_factor_y(&dev
->sd
, &ctrl
->val
);
1400 case V4L2_CID_EXPOSURE
:
1401 ret
= mt9m114_g_ev(&dev
->sd
, &ctrl
->val
);
1403 case V4L2_CID_3A_LOCK
:
1404 ret
= mt9m114_g_3a_lock(&dev
->sd
, &ctrl
->val
);
1413 static const struct v4l2_ctrl_ops ctrl_ops
= {
1414 .s_ctrl
= mt9m114_s_ctrl
,
1415 .g_volatile_ctrl
= mt9m114_g_volatile_ctrl
1418 static struct v4l2_ctrl_config mt9m114_controls
[] = {
1421 .id
= V4L2_CID_VFLIP
,
1422 .name
= "Image v-Flip",
1423 .type
= V4L2_CTRL_TYPE_INTEGER
,
1431 .id
= V4L2_CID_HFLIP
,
1432 .name
= "Image h-Flip",
1433 .type
= V4L2_CTRL_TYPE_INTEGER
,
1441 .id
= V4L2_CID_FOCAL_ABSOLUTE
,
1442 .name
= "focal length",
1443 .type
= V4L2_CTRL_TYPE_INTEGER
,
1444 .min
= MT9M114_FOCAL_LENGTH_DEFAULT
,
1445 .max
= MT9M114_FOCAL_LENGTH_DEFAULT
,
1447 .def
= MT9M114_FOCAL_LENGTH_DEFAULT
,
1452 .id
= V4L2_CID_FNUMBER_ABSOLUTE
,
1454 .type
= V4L2_CTRL_TYPE_INTEGER
,
1455 .min
= MT9M114_F_NUMBER_DEFAULT
,
1456 .max
= MT9M114_F_NUMBER_DEFAULT
,
1458 .def
= MT9M114_F_NUMBER_DEFAULT
,
1463 .id
= V4L2_CID_FNUMBER_RANGE
,
1464 .name
= "f-number range",
1465 .type
= V4L2_CTRL_TYPE_INTEGER
,
1466 .min
= MT9M114_F_NUMBER_RANGE
,
1467 .max
= MT9M114_F_NUMBER_RANGE
,
1469 .def
= MT9M114_F_NUMBER_RANGE
,
1474 .id
= V4L2_CID_EXPOSURE_ABSOLUTE
,
1476 .type
= V4L2_CTRL_TYPE_INTEGER
,
1486 .id
= V4L2_CID_EXPOSURE_ZONE_NUM
,
1487 .name
= "one-time exposure zone number",
1488 .type
= V4L2_CTRL_TYPE_INTEGER
,
1497 .id
= V4L2_CID_EXPOSURE_METERING
,
1499 .type
= V4L2_CTRL_TYPE_MENU
,
1509 .id
= V4L2_CID_BIN_FACTOR_HORZ
,
1510 .name
= "horizontal binning factor",
1511 .type
= V4L2_CTRL_TYPE_INTEGER
,
1513 .max
= MT9M114_BIN_FACTOR_MAX
,
1520 .id
= V4L2_CID_BIN_FACTOR_VERT
,
1521 .name
= "vertical binning factor",
1522 .type
= V4L2_CTRL_TYPE_INTEGER
,
1524 .max
= MT9M114_BIN_FACTOR_MAX
,
1531 .id
= V4L2_CID_EXPOSURE
,
1532 .name
= "exposure biasx",
1533 .type
= V4L2_CTRL_TYPE_INTEGER
,
1542 .id
= V4L2_CID_3A_LOCK
,
1544 .type
= V4L2_CTRL_TYPE_BITMASK
,
1546 .max
= V4L2_LOCK_EXPOSURE
| V4L2_LOCK_WHITE_BALANCE
| V4L2_LOCK_FOCUS
,
1553 static int mt9m114_detect(struct mt9m114_device
*dev
, struct i2c_client
*client
)
1555 struct i2c_adapter
*adapter
= client
->adapter
;
1558 if (!i2c_check_functionality(adapter
, I2C_FUNC_I2C
)) {
1559 dev_err(&client
->dev
, "%s: i2c error", __func__
);
1562 mt9m114_read_reg(client
, MISENSOR_16BIT
, (u32
)MT9M114_PID
, &retvalue
);
1563 dev
->real_model_id
= retvalue
;
1565 if (retvalue
!= MT9M114_MOD_ID
) {
1566 dev_err(&client
->dev
, "%s: failed: client->addr = %x\n",
1567 __func__
, client
->addr
);
1575 mt9m114_s_config(struct v4l2_subdev
*sd
, int irq
, void *platform_data
)
1577 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1578 struct i2c_client
*client
= v4l2_get_subdevdata(sd
);
1581 if (NULL
== platform_data
)
1584 dev
->platform_data
=
1585 (struct camera_sensor_platform_data
*)platform_data
;
1587 if (dev
->platform_data
->platform_init
) {
1588 ret
= dev
->platform_data
->platform_init(client
);
1590 v4l2_err(client
, "mt9m114 platform init err\n");
1596 v4l2_err(client
, "mt9m114 power-up err");
1600 /* config & detect sensor */
1601 ret
= mt9m114_detect(dev
, client
);
1603 v4l2_err(client
, "mt9m114_detect err s_config.\n");
1607 ret
= dev
->platform_data
->csi_cfg(sd
, 1);
1611 ret
= mt9m114_set_suspend(sd
);
1613 v4l2_err(client
, "mt9m114 suspend err");
1617 ret
= power_down(sd
);
1619 v4l2_err(client
, "mt9m114 power down err");
1626 dev
->platform_data
->csi_cfg(sd
, 0);
1629 dev_err(&client
->dev
, "sensor power-gating failed\n");
1633 /* Horizontal flip the image. */
1634 static int mt9m114_t_hflip(struct v4l2_subdev
*sd
, int value
)
1636 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
1637 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1639 /* set for direct mode */
1640 err
= mt9m114_write_reg(c
, MISENSOR_16BIT
, 0x098E, 0xC850);
1642 /* enable H flip ctx A */
1643 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC850, 0x01, 0x01);
1644 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC851, 0x01, 0x01);
1646 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC888, 0x01, 0x01);
1647 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC889, 0x01, 0x01);
1649 err
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
1650 MISENSOR_HFLIP_MASK
, MISENSOR_FLIP_EN
);
1652 dev
->bpat
= MT9M114_BPAT_GRGRBGBG
;
1654 /* disable H flip ctx A */
1655 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC850, 0x01, 0x00);
1656 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC851, 0x01, 0x00);
1658 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC888, 0x01, 0x00);
1659 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC889, 0x01, 0x00);
1661 err
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
1662 MISENSOR_HFLIP_MASK
, MISENSOR_FLIP_DIS
);
1664 dev
->bpat
= MT9M114_BPAT_BGBGGRGR
;
1667 err
+= mt9m114_write_reg(c
, MISENSOR_8BIT
, 0x8404, 0x06);
1673 /* Vertically flip the image */
1674 static int mt9m114_t_vflip(struct v4l2_subdev
*sd
, int value
)
1676 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
1678 /* set for direct mode */
1679 err
= mt9m114_write_reg(c
, MISENSOR_16BIT
, 0x098E, 0xC850);
1681 /* enable H flip - ctx A */
1682 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC850, 0x02, 0x01);
1683 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC851, 0x02, 0x01);
1685 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC888, 0x02, 0x01);
1686 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC889, 0x02, 0x01);
1688 err
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
1689 MISENSOR_VFLIP_MASK
, MISENSOR_FLIP_EN
);
1691 /* disable H flip - ctx A */
1692 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC850, 0x02, 0x00);
1693 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC851, 0x02, 0x00);
1695 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC888, 0x02, 0x00);
1696 err
+= misensor_rmw_reg(c
, MISENSOR_8BIT
, 0xC889, 0x02, 0x00);
1698 err
+= misensor_rmw_reg(c
, MISENSOR_16BIT
, MISENSOR_READ_MODE
,
1699 MISENSOR_VFLIP_MASK
, MISENSOR_FLIP_DIS
);
1702 err
+= mt9m114_write_reg(c
, MISENSOR_8BIT
, 0x8404, 0x06);
1707 static int mt9m114_s_parm(struct v4l2_subdev
*sd
,
1708 struct v4l2_streamparm
*param
)
1713 static int mt9m114_g_frame_interval(struct v4l2_subdev
*sd
,
1714 struct v4l2_subdev_frame_interval
*interval
)
1716 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1718 interval
->interval
.numerator
= 1;
1719 interval
->interval
.denominator
= mt9m114_res
[dev
->res
].fps
;
1724 static int mt9m114_s_stream(struct v4l2_subdev
*sd
, int enable
)
1727 struct i2c_client
*c
= v4l2_get_subdevdata(sd
);
1728 struct mt9m114_device
*dev
= to_mt9m114_sensor(sd
);
1729 struct atomisp_exposure exposure
;
1732 ret
= mt9m114_write_reg_array(c
, mt9m114_chgstat_reg
,
1737 if (dev
->first_exp
> MT9M114_MAX_FIRST_EXP
) {
1738 exposure
.integration_time
[0] = dev
->first_exp
;
1739 exposure
.gain
[0] = dev
->first_gain
;
1740 exposure
.gain
[1] = dev
->first_diggain
;
1741 mt9m114_s_exposure(sd
, &exposure
);
1747 ret
= mt9m114_set_suspend(sd
);
1753 static int mt9m114_enum_mbus_code(struct v4l2_subdev
*sd
,
1754 struct v4l2_subdev_pad_config
*cfg
,
1755 struct v4l2_subdev_mbus_code_enum
*code
)
1759 code
->code
= MEDIA_BUS_FMT_SGRBG10_1X10
;
1764 static int mt9m114_enum_frame_size(struct v4l2_subdev
*sd
,
1765 struct v4l2_subdev_pad_config
*cfg
,
1766 struct v4l2_subdev_frame_size_enum
*fse
)
1769 unsigned int index
= fse
->index
;
1774 fse
->min_width
= mt9m114_res
[index
].width
;
1775 fse
->min_height
= mt9m114_res
[index
].height
;
1776 fse
->max_width
= mt9m114_res
[index
].width
;
1777 fse
->max_height
= mt9m114_res
[index
].height
;
1782 static int mt9m114_g_skip_frames(struct v4l2_subdev
*sd
, u32
*frames
)
1785 struct mt9m114_device
*snr
= to_mt9m114_sensor(sd
);
1790 for (index
= 0; index
< N_RES
; index
++) {
1791 if (mt9m114_res
[index
].res
== snr
->res
)
1798 *frames
= mt9m114_res
[index
].skip_frames
;
1803 static const struct v4l2_subdev_video_ops mt9m114_video_ops
= {
1804 .s_parm
= mt9m114_s_parm
,
1805 .s_stream
= mt9m114_s_stream
,
1806 .g_frame_interval
= mt9m114_g_frame_interval
,
1809 static const struct v4l2_subdev_sensor_ops mt9m114_sensor_ops
= {
1810 .g_skip_frames
= mt9m114_g_skip_frames
,
1813 static const struct v4l2_subdev_core_ops mt9m114_core_ops
= {
1814 .s_power
= mt9m114_s_power
,
1815 .ioctl
= mt9m114_ioctl
,
1818 /* REVISIT: Do we need pad operations? */
1819 static const struct v4l2_subdev_pad_ops mt9m114_pad_ops
= {
1820 .enum_mbus_code
= mt9m114_enum_mbus_code
,
1821 .enum_frame_size
= mt9m114_enum_frame_size
,
1822 .get_fmt
= mt9m114_get_fmt
,
1823 .set_fmt
= mt9m114_set_fmt
,
1825 .set_selection
= mt9m114_s_exposure_selection
,
1829 static const struct v4l2_subdev_ops mt9m114_ops
= {
1830 .core
= &mt9m114_core_ops
,
1831 .video
= &mt9m114_video_ops
,
1832 .pad
= &mt9m114_pad_ops
,
1833 .sensor
= &mt9m114_sensor_ops
,
1836 static const struct media_entity_operations mt9m114_entity_ops
= {
1840 static int mt9m114_remove(struct i2c_client
*client
)
1842 struct mt9m114_device
*dev
;
1843 struct v4l2_subdev
*sd
= i2c_get_clientdata(client
);
1845 dev
= container_of(sd
, struct mt9m114_device
, sd
);
1846 dev
->platform_data
->csi_cfg(sd
, 0);
1847 if (dev
->platform_data
->platform_deinit
)
1848 dev
->platform_data
->platform_deinit();
1849 v4l2_device_unregister_subdev(sd
);
1850 media_entity_cleanup(&dev
->sd
.entity
);
1851 v4l2_ctrl_handler_free(&dev
->ctrl_handler
);
1856 static int mt9m114_probe(struct i2c_client
*client
,
1857 const struct i2c_device_id
*id
)
1859 struct mt9m114_device
*dev
;
1864 /* Setup sensor configuration structure */
1865 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
1869 v4l2_i2c_subdev_init(&dev
->sd
, client
, &mt9m114_ops
);
1870 pdata
= client
->dev
.platform_data
;
1871 if (ACPI_COMPANION(&client
->dev
))
1872 pdata
= gmin_camera_platform_data(&dev
->sd
,
1873 ATOMISP_INPUT_FORMAT_RAW_10
,
1874 atomisp_bayer_order_grbg
);
1876 ret
= mt9m114_s_config(&dev
->sd
, client
->irq
, pdata
);
1877 if (!pdata
|| ret
) {
1878 v4l2_device_unregister_subdev(&dev
->sd
);
1883 ret
= atomisp_register_i2c_module(&dev
->sd
, pdata
, RAW_CAMERA
);
1885 v4l2_device_unregister_subdev(&dev
->sd
);
1887 /* Coverity CID 298095 - return on error */
1891 /*TODO add format code here*/
1892 dev
->sd
.flags
|= V4L2_SUBDEV_FL_HAS_DEVNODE
;
1893 dev
->pad
.flags
= MEDIA_PAD_FL_SOURCE
;
1894 dev
->format
.code
= MEDIA_BUS_FMT_SGRBG10_1X10
;
1895 dev
->sd
.entity
.function
= MEDIA_ENT_F_CAM_SENSOR
;
1898 v4l2_ctrl_handler_init(&dev
->ctrl_handler
,
1899 ARRAY_SIZE(mt9m114_controls
));
1901 mt9m114_remove(client
);
1905 for (i
= 0; i
< ARRAY_SIZE(mt9m114_controls
); i
++)
1906 v4l2_ctrl_new_custom(&dev
->ctrl_handler
, &mt9m114_controls
[i
],
1909 if (dev
->ctrl_handler
.error
) {
1910 mt9m114_remove(client
);
1911 return dev
->ctrl_handler
.error
;
1914 /* Use same lock for controls as for everything else. */
1915 dev
->ctrl_handler
.lock
= &dev
->input_lock
;
1916 dev
->sd
.ctrl_handler
= &dev
->ctrl_handler
;
1918 /* REVISIT: Do we need media controller? */
1919 ret
= media_entity_pads_init(&dev
->sd
.entity
, 1, &dev
->pad
);
1921 mt9m114_remove(client
);
1927 MODULE_DEVICE_TABLE(i2c
, mt9m114_id
);
1929 static const struct acpi_device_id mt9m114_acpi_match
[] = {
1935 MODULE_DEVICE_TABLE(acpi
, mt9m114_acpi_match
);
1937 static struct i2c_driver mt9m114_driver
= {
1940 .acpi_match_table
= ACPI_PTR(mt9m114_acpi_match
),
1942 .probe
= mt9m114_probe
,
1943 .remove
= mt9m114_remove
,
1944 .id_table
= mt9m114_id
,
1947 static __init
int init_mt9m114(void)
1949 return i2c_add_driver(&mt9m114_driver
);
1952 static __exit
void exit_mt9m114(void)
1954 i2c_del_driver(&mt9m114_driver
);
1957 module_init(init_mt9m114
);
1958 module_exit(exit_mt9m114
);
1960 MODULE_AUTHOR("Shuguang Gong <Shuguang.gong@intel.com>");
1961 MODULE_LICENSE("GPL");