2 * drivers/media/video/smiapp/smiapp-core.c
4 * Generic driver for SMIA/SMIA++ compliant camera modules
6 * Copyright (C) 2010--2012 Nokia Corporation
7 * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
9 * Based on smiapp driver by Vimarsh Zutshi
10 * Based on jt8ev1.c by Vimarsh Zutshi
11 * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com>
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * version 2 as published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
29 #include <linux/clk.h>
30 #include <linux/delay.h>
31 #include <linux/device.h>
32 #include <linux/gpio.h>
33 #include <linux/module.h>
34 #include <linux/regulator/consumer.h>
35 #include <linux/slab.h>
36 #include <linux/v4l2-mediabus.h>
37 #include <media/v4l2-device.h>
41 #define SMIAPP_ALIGN_DIM(dim, flags) \
42 ((flags) & V4L2_SUBDEV_SEL_FLAG_SIZE_GE \
47 * smiapp_module_idents - supported camera modules
49 static const struct smiapp_module_ident smiapp_module_idents
[] = {
50 SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"),
51 SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"),
52 SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"),
53 SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"),
54 SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"),
55 SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk
),
56 SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"),
57 SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"),
58 SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk
),
59 SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk
),
60 SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk
),
65 * Dynamic Capability Identification
69 static int smiapp_read_frame_fmt(struct smiapp_sensor
*sensor
)
71 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
72 u32 fmt_model_type
, fmt_model_subtype
, ncol_desc
, nrow_desc
;
76 int embedded_start
= -1, embedded_end
= -1;
79 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_TYPE
,
84 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FRAME_FORMAT_MODEL_SUBTYPE
,
89 ncol_desc
= (fmt_model_subtype
90 & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_MASK
)
91 >> SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NCOLS_SHIFT
;
92 nrow_desc
= fmt_model_subtype
93 & SMIAPP_FRAME_FORMAT_MODEL_SUBTYPE_NROWS_MASK
;
95 dev_dbg(&client
->dev
, "format_model_type %s\n",
96 fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE
98 fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE
99 ? "4 byte" : "is simply bad");
101 for (i
= 0; i
< ncol_desc
+ nrow_desc
; i
++) {
108 if (fmt_model_type
== SMIAPP_FRAME_FORMAT_MODEL_TYPE_2BYTE
) {
111 SMIAPP_REG_U16_FRAME_FORMAT_DESCRIPTOR_2(i
),
118 & SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_MASK
)
119 >> SMIAPP_FRAME_FORMAT_DESC_2_PIXELCODE_SHIFT
;
120 pixels
= desc
& SMIAPP_FRAME_FORMAT_DESC_2_PIXELS_MASK
;
121 } else if (fmt_model_type
122 == SMIAPP_FRAME_FORMAT_MODEL_TYPE_4BYTE
) {
125 SMIAPP_REG_U32_FRAME_FORMAT_DESCRIPTOR_4(i
),
132 & SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_MASK
)
133 >> SMIAPP_FRAME_FORMAT_DESC_4_PIXELCODE_SHIFT
;
134 pixels
= desc
& SMIAPP_FRAME_FORMAT_DESC_4_PIXELS_MASK
;
136 dev_dbg(&client
->dev
,
137 "invalid frame format model type %d\n",
148 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED
:
151 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DUMMY
:
154 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_BLACK
:
157 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_DARK
:
160 case SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE
:
165 dev_dbg(&client
->dev
, "pixelcode %d\n", pixelcode
);
169 dev_dbg(&client
->dev
, "%s pixels: %d %s\n",
170 what
, pixels
, which
);
175 /* Handle row descriptors */
177 == SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_EMBEDDED
) {
178 embedded_start
= line_count
;
180 if (pixelcode
== SMIAPP_FRAME_FORMAT_DESC_PIXELCODE_VISIBLE
181 || pixels
>= sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES
] / 2)
182 image_start
= line_count
;
183 if (embedded_start
!= -1 && embedded_end
== -1)
184 embedded_end
= line_count
;
186 line_count
+= pixels
;
189 if (embedded_start
== -1 || embedded_end
== -1) {
194 dev_dbg(&client
->dev
, "embedded data from lines %d to %d\n",
195 embedded_start
, embedded_end
);
196 dev_dbg(&client
->dev
, "image data starts at line %d\n", image_start
);
201 static int smiapp_pll_configure(struct smiapp_sensor
*sensor
)
203 struct smiapp_pll
*pll
= &sensor
->pll
;
207 sensor
, SMIAPP_REG_U16_VT_PIX_CLK_DIV
, pll
->vt_pix_clk_div
);
212 sensor
, SMIAPP_REG_U16_VT_SYS_CLK_DIV
, pll
->vt_sys_clk_div
);
217 sensor
, SMIAPP_REG_U16_PRE_PLL_CLK_DIV
, pll
->pre_pll_clk_div
);
222 sensor
, SMIAPP_REG_U16_PLL_MULTIPLIER
, pll
->pll_multiplier
);
226 /* Lane op clock ratio does not apply here. */
228 sensor
, SMIAPP_REG_U32_REQUESTED_LINK_BIT_RATE_MBPS
,
229 DIV_ROUND_UP(pll
->op_sys_clk_freq_hz
, 1000000 / 256 / 256));
230 if (rval
< 0 || sensor
->minfo
.smiapp_profile
== SMIAPP_PROFILE_0
)
234 sensor
, SMIAPP_REG_U16_OP_PIX_CLK_DIV
, pll
->op_pix_clk_div
);
239 sensor
, SMIAPP_REG_U16_OP_SYS_CLK_DIV
, pll
->op_sys_clk_div
);
242 static int smiapp_pll_update(struct smiapp_sensor
*sensor
)
244 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
245 struct smiapp_pll_limits lim
= {
246 .min_pre_pll_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV
],
247 .max_pre_pll_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV
],
248 .min_pll_ip_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ
],
249 .max_pll_ip_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ
],
250 .min_pll_multiplier
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER
],
251 .max_pll_multiplier
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER
],
252 .min_pll_op_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ
],
253 .max_pll_op_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ
],
255 .min_op_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV
],
256 .max_op_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV
],
257 .min_op_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV
],
258 .max_op_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV
],
259 .min_op_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ
],
260 .max_op_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ
],
261 .min_op_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ
],
262 .max_op_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ
],
264 .min_vt_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV
],
265 .max_vt_sys_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV
],
266 .min_vt_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV
],
267 .max_vt_pix_clk_div
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV
],
268 .min_vt_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ
],
269 .max_vt_sys_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ
],
270 .min_vt_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ
],
271 .max_vt_pix_clk_freq_hz
= sensor
->limits
[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ
],
273 .min_line_length_pck_bin
= sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
],
274 .min_line_length_pck
= sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK
],
276 struct smiapp_pll
*pll
= &sensor
->pll
;
279 memset(&sensor
->pll
, 0, sizeof(sensor
->pll
));
281 pll
->lanes
= sensor
->platform_data
->lanes
;
282 pll
->ext_clk_freq_hz
= sensor
->platform_data
->ext_clk
;
284 if (sensor
->minfo
.smiapp_profile
== SMIAPP_PROFILE_0
) {
286 * Fill in operational clock divisors limits from the
287 * video timing ones. On profile 0 sensors the
288 * requirements regarding them are essentially the
289 * same as on VT ones.
291 lim
.min_op_sys_clk_div
= lim
.min_vt_sys_clk_div
;
292 lim
.max_op_sys_clk_div
= lim
.max_vt_sys_clk_div
;
293 lim
.min_op_pix_clk_div
= lim
.min_vt_pix_clk_div
;
294 lim
.max_op_pix_clk_div
= lim
.max_vt_pix_clk_div
;
295 lim
.min_op_sys_clk_freq_hz
= lim
.min_vt_sys_clk_freq_hz
;
296 lim
.max_op_sys_clk_freq_hz
= lim
.max_vt_sys_clk_freq_hz
;
297 lim
.min_op_pix_clk_freq_hz
= lim
.min_vt_pix_clk_freq_hz
;
298 lim
.max_op_pix_clk_freq_hz
= lim
.max_vt_pix_clk_freq_hz
;
299 /* Profile 0 sensors have no separate OP clock branch. */
300 pll
->flags
|= SMIAPP_PLL_FLAG_NO_OP_CLOCKS
;
303 if (smiapp_needs_quirk(sensor
,
304 SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE
))
305 pll
->flags
|= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE
;
307 pll
->binning_horizontal
= sensor
->binning_horizontal
;
308 pll
->binning_vertical
= sensor
->binning_vertical
;
310 sensor
->link_freq
->qmenu_int
[sensor
->link_freq
->val
];
311 pll
->scale_m
= sensor
->scale_m
;
312 pll
->scale_n
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
313 pll
->bits_per_pixel
= sensor
->csi_format
->compressed
;
315 rval
= smiapp_pll_calculate(&client
->dev
, &lim
, pll
);
319 sensor
->pixel_rate_parray
->cur
.val64
= pll
->vt_pix_clk_freq_hz
;
320 sensor
->pixel_rate_csi
->cur
.val64
= pll
->pixel_rate_csi
;
328 * V4L2 Controls handling
332 static void __smiapp_update_exposure_limits(struct smiapp_sensor
*sensor
)
334 struct v4l2_ctrl
*ctrl
= sensor
->exposure
;
337 max
= sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
338 + sensor
->vblank
->val
339 - sensor
->limits
[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN
];
342 if (ctrl
->default_value
> max
)
343 ctrl
->default_value
= max
;
346 if (ctrl
->cur
.val
> max
)
353 * 1. Bits-per-pixel, descending.
354 * 2. Bits-per-pixel compressed, descending.
355 * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel
356 * orders must be defined.
358 static const struct smiapp_csi_data_format smiapp_csi_data_formats
[] = {
359 { V4L2_MBUS_FMT_SGRBG12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_GRBG
, },
360 { V4L2_MBUS_FMT_SRGGB12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_RGGB
, },
361 { V4L2_MBUS_FMT_SBGGR12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_BGGR
, },
362 { V4L2_MBUS_FMT_SGBRG12_1X12
, 12, 12, SMIAPP_PIXEL_ORDER_GBRG
, },
363 { V4L2_MBUS_FMT_SGRBG10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_GRBG
, },
364 { V4L2_MBUS_FMT_SRGGB10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_RGGB
, },
365 { V4L2_MBUS_FMT_SBGGR10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_BGGR
, },
366 { V4L2_MBUS_FMT_SGBRG10_1X10
, 10, 10, SMIAPP_PIXEL_ORDER_GBRG
, },
367 { V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_GRBG
, },
368 { V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_RGGB
, },
369 { V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_BGGR
, },
370 { V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8
, 10, 8, SMIAPP_PIXEL_ORDER_GBRG
, },
371 { V4L2_MBUS_FMT_SGRBG8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_GRBG
, },
372 { V4L2_MBUS_FMT_SRGGB8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_RGGB
, },
373 { V4L2_MBUS_FMT_SBGGR8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_BGGR
, },
374 { V4L2_MBUS_FMT_SGBRG8_1X8
, 8, 8, SMIAPP_PIXEL_ORDER_GBRG
, },
377 const char *pixel_order_str
[] = { "GRBG", "RGGB", "BGGR", "GBRG" };
379 #define to_csi_format_idx(fmt) (((unsigned long)(fmt) \
380 - (unsigned long)smiapp_csi_data_formats) \
381 / sizeof(*smiapp_csi_data_formats))
383 static u32
smiapp_pixel_order(struct smiapp_sensor
*sensor
)
385 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
389 if (sensor
->hflip
->val
)
390 flip
|= SMIAPP_IMAGE_ORIENTATION_HFLIP
;
392 if (sensor
->vflip
->val
)
393 flip
|= SMIAPP_IMAGE_ORIENTATION_VFLIP
;
396 flip
^= sensor
->hvflip_inv_mask
;
398 dev_dbg(&client
->dev
, "flip %d\n", flip
);
399 return sensor
->default_pixel_order
^ flip
;
402 static void smiapp_update_mbus_formats(struct smiapp_sensor
*sensor
)
404 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
405 unsigned int csi_format_idx
=
406 to_csi_format_idx(sensor
->csi_format
) & ~3;
407 unsigned int internal_csi_format_idx
=
408 to_csi_format_idx(sensor
->internal_csi_format
) & ~3;
409 unsigned int pixel_order
= smiapp_pixel_order(sensor
);
411 sensor
->mbus_frame_fmts
=
412 sensor
->default_mbus_frame_fmts
<< pixel_order
;
414 &smiapp_csi_data_formats
[csi_format_idx
+ pixel_order
];
415 sensor
->internal_csi_format
=
416 &smiapp_csi_data_formats
[internal_csi_format_idx
419 BUG_ON(max(internal_csi_format_idx
, csi_format_idx
) + pixel_order
420 >= ARRAY_SIZE(smiapp_csi_data_formats
));
421 BUG_ON(min(internal_csi_format_idx
, csi_format_idx
) < 0);
423 dev_dbg(&client
->dev
, "new pixel order %s\n",
424 pixel_order_str
[pixel_order
]);
427 static int smiapp_set_ctrl(struct v4l2_ctrl
*ctrl
)
429 struct smiapp_sensor
*sensor
=
430 container_of(ctrl
->handler
, struct smiapp_subdev
, ctrl_handler
)
437 case V4L2_CID_ANALOGUE_GAIN
:
440 SMIAPP_REG_U16_ANALOGUE_GAIN_CODE_GLOBAL
, ctrl
->val
);
442 case V4L2_CID_EXPOSURE
:
445 SMIAPP_REG_U16_COARSE_INTEGRATION_TIME
, ctrl
->val
);
449 if (sensor
->streaming
)
452 if (sensor
->hflip
->val
)
453 orient
|= SMIAPP_IMAGE_ORIENTATION_HFLIP
;
455 if (sensor
->vflip
->val
)
456 orient
|= SMIAPP_IMAGE_ORIENTATION_VFLIP
;
458 orient
^= sensor
->hvflip_inv_mask
;
459 rval
= smiapp_write(sensor
,
460 SMIAPP_REG_U8_IMAGE_ORIENTATION
,
465 smiapp_update_mbus_formats(sensor
);
469 case V4L2_CID_VBLANK
:
470 exposure
= sensor
->exposure
->val
;
472 __smiapp_update_exposure_limits(sensor
);
474 if (exposure
> sensor
->exposure
->maximum
) {
475 sensor
->exposure
->val
=
476 sensor
->exposure
->maximum
;
477 rval
= smiapp_set_ctrl(
484 sensor
, SMIAPP_REG_U16_FRAME_LENGTH_LINES
,
485 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
488 case V4L2_CID_HBLANK
:
490 sensor
, SMIAPP_REG_U16_LINE_LENGTH_PCK
,
491 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
494 case V4L2_CID_LINK_FREQ
:
495 if (sensor
->streaming
)
498 return smiapp_pll_update(sensor
);
505 static const struct v4l2_ctrl_ops smiapp_ctrl_ops
= {
506 .s_ctrl
= smiapp_set_ctrl
,
509 static int smiapp_init_controls(struct smiapp_sensor
*sensor
)
511 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
515 rval
= v4l2_ctrl_handler_init(&sensor
->pixel_array
->ctrl_handler
, 7);
518 sensor
->pixel_array
->ctrl_handler
.lock
= &sensor
->mutex
;
520 sensor
->analog_gain
= v4l2_ctrl_new_std(
521 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
522 V4L2_CID_ANALOGUE_GAIN
,
523 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN
],
524 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX
],
525 max(sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP
], 1U),
526 sensor
->limits
[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN
]);
528 /* Exposure limits will be updated soon, use just something here. */
529 sensor
->exposure
= v4l2_ctrl_new_std(
530 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
531 V4L2_CID_EXPOSURE
, 0, 0, 1, 0);
533 sensor
->hflip
= v4l2_ctrl_new_std(
534 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
535 V4L2_CID_HFLIP
, 0, 1, 1, 0);
536 sensor
->vflip
= v4l2_ctrl_new_std(
537 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
538 V4L2_CID_VFLIP
, 0, 1, 1, 0);
540 sensor
->vblank
= v4l2_ctrl_new_std(
541 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
542 V4L2_CID_VBLANK
, 0, 1, 1, 0);
545 sensor
->vblank
->flags
|= V4L2_CTRL_FLAG_UPDATE
;
547 sensor
->hblank
= v4l2_ctrl_new_std(
548 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
549 V4L2_CID_HBLANK
, 0, 1, 1, 0);
552 sensor
->hblank
->flags
|= V4L2_CTRL_FLAG_UPDATE
;
554 sensor
->pixel_rate_parray
= v4l2_ctrl_new_std(
555 &sensor
->pixel_array
->ctrl_handler
, &smiapp_ctrl_ops
,
556 V4L2_CID_PIXEL_RATE
, 0, 0, 1, 0);
558 if (sensor
->pixel_array
->ctrl_handler
.error
) {
559 dev_err(&client
->dev
,
560 "pixel array controls initialization failed (%d)\n",
561 sensor
->pixel_array
->ctrl_handler
.error
);
562 rval
= sensor
->pixel_array
->ctrl_handler
.error
;
566 sensor
->pixel_array
->sd
.ctrl_handler
=
567 &sensor
->pixel_array
->ctrl_handler
;
569 v4l2_ctrl_cluster(2, &sensor
->hflip
);
571 rval
= v4l2_ctrl_handler_init(&sensor
->src
->ctrl_handler
, 0);
574 sensor
->src
->ctrl_handler
.lock
= &sensor
->mutex
;
576 for (max
= 0; sensor
->platform_data
->op_sys_clock
[max
+ 1]; max
++);
578 sensor
->link_freq
= v4l2_ctrl_new_int_menu(
579 &sensor
->src
->ctrl_handler
, &smiapp_ctrl_ops
,
580 V4L2_CID_LINK_FREQ
, max
, 0,
581 sensor
->platform_data
->op_sys_clock
);
583 sensor
->pixel_rate_csi
= v4l2_ctrl_new_std(
584 &sensor
->src
->ctrl_handler
, &smiapp_ctrl_ops
,
585 V4L2_CID_PIXEL_RATE
, 0, 0, 1, 0);
587 if (sensor
->src
->ctrl_handler
.error
) {
588 dev_err(&client
->dev
,
589 "src controls initialization failed (%d)\n",
590 sensor
->src
->ctrl_handler
.error
);
591 rval
= sensor
->src
->ctrl_handler
.error
;
595 sensor
->src
->sd
.ctrl_handler
=
596 &sensor
->src
->ctrl_handler
;
601 v4l2_ctrl_handler_free(&sensor
->pixel_array
->ctrl_handler
);
602 v4l2_ctrl_handler_free(&sensor
->src
->ctrl_handler
);
607 static void smiapp_free_controls(struct smiapp_sensor
*sensor
)
611 for (i
= 0; i
< sensor
->ssds_used
; i
++)
612 v4l2_ctrl_handler_free(&sensor
->ssds
[i
].ctrl_handler
);
615 static int smiapp_get_limits(struct smiapp_sensor
*sensor
, int const *limit
,
618 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
623 for (i
= 0; i
< n
; i
++) {
625 sensor
, smiapp_reg_limits
[limit
[i
]].addr
, &val
);
628 sensor
->limits
[limit
[i
]] = val
;
629 dev_dbg(&client
->dev
, "0x%8.8x \"%s\" = %d, 0x%x\n",
630 smiapp_reg_limits
[limit
[i
]].addr
,
631 smiapp_reg_limits
[limit
[i
]].what
, val
, val
);
637 static int smiapp_get_all_limits(struct smiapp_sensor
*sensor
)
642 for (i
= 0; i
< SMIAPP_LIMIT_LAST
; i
++) {
643 rval
= smiapp_get_limits(sensor
, &i
, 1);
648 if (sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] == 0)
649 smiapp_replace_limit(sensor
, SMIAPP_LIMIT_SCALER_N_MIN
, 16);
654 static int smiapp_get_limits_binning(struct smiapp_sensor
*sensor
)
656 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
657 static u32
const limits
[] = {
658 SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
,
659 SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN
,
660 SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
,
661 SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN
,
662 SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
,
663 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN_BIN
,
664 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN_BIN
,
666 static u32
const limits_replace
[] = {
667 SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES
,
668 SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES
,
669 SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK
,
670 SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK
,
671 SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK
,
672 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MIN
,
673 SMIAPP_LIMIT_FINE_INTEGRATION_TIME_MAX_MARGIN
,
678 if (sensor
->limits
[SMIAPP_LIMIT_BINNING_CAPABILITY
] ==
679 SMIAPP_BINNING_CAPABILITY_NO
) {
680 for (i
= 0; i
< ARRAY_SIZE(limits
); i
++)
681 sensor
->limits
[limits
[i
]] =
682 sensor
->limits
[limits_replace
[i
]];
687 rval
= smiapp_get_limits(sensor
, limits
, ARRAY_SIZE(limits
));
692 * Sanity check whether the binning limits are valid. If not,
693 * use the non-binning ones.
695 if (sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
]
696 && sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
]
697 && sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
])
700 for (i
= 0; i
< ARRAY_SIZE(limits
); i
++) {
701 dev_dbg(&client
->dev
,
702 "replace limit 0x%8.8x \"%s\" = %d, 0x%x\n",
703 smiapp_reg_limits
[limits
[i
]].addr
,
704 smiapp_reg_limits
[limits
[i
]].what
,
705 sensor
->limits
[limits_replace
[i
]],
706 sensor
->limits
[limits_replace
[i
]]);
707 sensor
->limits
[limits
[i
]] =
708 sensor
->limits
[limits_replace
[i
]];
714 static int smiapp_get_mbus_formats(struct smiapp_sensor
*sensor
)
716 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
717 unsigned int type
, n
;
718 unsigned int i
, pixel_order
;
722 sensor
, SMIAPP_REG_U8_DATA_FORMAT_MODEL_TYPE
, &type
);
726 dev_dbg(&client
->dev
, "data_format_model_type %d\n", type
);
728 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_PIXEL_ORDER
,
733 if (pixel_order
>= ARRAY_SIZE(pixel_order_str
)) {
734 dev_dbg(&client
->dev
, "bad pixel order %d\n", pixel_order
);
738 dev_dbg(&client
->dev
, "pixel order %d (%s)\n", pixel_order
,
739 pixel_order_str
[pixel_order
]);
742 case SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL
:
743 n
= SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N
;
745 case SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED
:
746 n
= SMIAPP_DATA_FORMAT_MODEL_TYPE_EXTENDED_N
;
752 sensor
->default_pixel_order
= pixel_order
;
753 sensor
->mbus_frame_fmts
= 0;
755 for (i
= 0; i
< n
; i
++) {
760 SMIAPP_REG_U16_DATA_FORMAT_DESCRIPTOR(i
), &fmt
);
764 dev_dbg(&client
->dev
, "bpp %d, compressed %d\n",
767 for (j
= 0; j
< ARRAY_SIZE(smiapp_csi_data_formats
); j
++) {
768 const struct smiapp_csi_data_format
*f
=
769 &smiapp_csi_data_formats
[j
];
771 if (f
->pixel_order
!= SMIAPP_PIXEL_ORDER_GRBG
)
774 if (f
->width
!= fmt
>> 8 || f
->compressed
!= (u8
)fmt
)
777 dev_dbg(&client
->dev
, "jolly good! %d\n", j
);
779 sensor
->default_mbus_frame_fmts
|= 1 << j
;
780 if (!sensor
->csi_format
) {
781 sensor
->csi_format
= f
;
782 sensor
->internal_csi_format
= f
;
787 if (!sensor
->csi_format
) {
788 dev_err(&client
->dev
, "no supported mbus code found\n");
792 smiapp_update_mbus_formats(sensor
);
797 static void smiapp_update_blanking(struct smiapp_sensor
*sensor
)
799 struct v4l2_ctrl
*vblank
= sensor
->vblank
;
800 struct v4l2_ctrl
*hblank
= sensor
->hblank
;
804 sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES
],
805 sensor
->limits
[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN
] -
806 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
);
808 sensor
->limits
[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN
] -
809 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
;
811 vblank
->val
= clamp_t(int, vblank
->val
,
812 vblank
->minimum
, vblank
->maximum
);
813 vblank
->default_value
= vblank
->minimum
;
814 vblank
->val
= vblank
->val
;
815 vblank
->cur
.val
= vblank
->val
;
819 sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN
] -
820 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
,
821 sensor
->limits
[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN
]);
823 sensor
->limits
[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN
] -
824 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
;
826 hblank
->val
= clamp_t(int, hblank
->val
,
827 hblank
->minimum
, hblank
->maximum
);
828 hblank
->default_value
= hblank
->minimum
;
829 hblank
->val
= hblank
->val
;
830 hblank
->cur
.val
= hblank
->val
;
832 __smiapp_update_exposure_limits(sensor
);
835 static int smiapp_update_mode(struct smiapp_sensor
*sensor
)
837 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
838 unsigned int binning_mode
;
841 dev_dbg(&client
->dev
, "frame size: %dx%d\n",
842 sensor
->src
->crop
[SMIAPP_PAD_SRC
].width
,
843 sensor
->src
->crop
[SMIAPP_PAD_SRC
].height
);
844 dev_dbg(&client
->dev
, "csi format width: %d\n",
845 sensor
->csi_format
->width
);
847 /* Binning has to be set up here; it affects limits */
848 if (sensor
->binning_horizontal
== 1 &&
849 sensor
->binning_vertical
== 1) {
853 (sensor
->binning_horizontal
<< 4)
854 | sensor
->binning_vertical
;
857 sensor
, SMIAPP_REG_U8_BINNING_TYPE
, binning_type
);
863 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_BINNING_MODE
, binning_mode
);
867 /* Get updated limits due to binning */
868 rval
= smiapp_get_limits_binning(sensor
);
872 rval
= smiapp_pll_update(sensor
);
876 /* Output from pixel array, including blanking */
877 smiapp_update_blanking(sensor
);
879 dev_dbg(&client
->dev
, "vblank\t\t%d\n", sensor
->vblank
->val
);
880 dev_dbg(&client
->dev
, "hblank\t\t%d\n", sensor
->hblank
->val
);
882 dev_dbg(&client
->dev
, "real timeperframe\t100/%d\n",
883 sensor
->pll
.vt_pix_clk_freq_hz
/
884 ((sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
885 + sensor
->hblank
->val
) *
886 (sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
887 + sensor
->vblank
->val
) / 100));
894 * SMIA++ NVM handling
897 static int smiapp_read_nvm(struct smiapp_sensor
*sensor
,
903 np
= sensor
->nvm_size
/ SMIAPP_NVM_PAGE_SIZE
;
904 for (p
= 0; p
< np
; p
++) {
907 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_PAGE_SELECT
, p
);
911 rval
= smiapp_write(sensor
,
912 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL
,
913 SMIAPP_DATA_TRANSFER_IF_1_CTRL_EN
|
914 SMIAPP_DATA_TRANSFER_IF_1_CTRL_RD_EN
);
918 for (i
= 0; i
< 1000; i
++) {
921 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_STATUS
, &s
);
926 if (s
& SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY
)
936 for (i
= 0; i
< SMIAPP_NVM_PAGE_SIZE
; i
++) {
939 SMIAPP_REG_U8_DATA_TRANSFER_IF_1_DATA_0
+ i
,
949 rval2
= smiapp_write(sensor
, SMIAPP_REG_U8_DATA_TRANSFER_IF_1_CTRL
, 0);
958 * SMIA++ CCI address control
961 static int smiapp_change_cci_addr(struct smiapp_sensor
*sensor
)
963 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
967 client
->addr
= sensor
->platform_data
->i2c_addr_dfl
;
969 rval
= smiapp_write(sensor
,
970 SMIAPP_REG_U8_CCI_ADDRESS_CONTROL
,
971 sensor
->platform_data
->i2c_addr_alt
<< 1);
975 client
->addr
= sensor
->platform_data
->i2c_addr_alt
;
977 /* verify addr change went ok */
978 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_CCI_ADDRESS_CONTROL
, &val
);
982 if (val
!= sensor
->platform_data
->i2c_addr_alt
<< 1)
990 * SMIA++ Mode Control
993 static int smiapp_setup_flash_strobe(struct smiapp_sensor
*sensor
)
995 struct smiapp_flash_strobe_parms
*strobe_setup
;
996 unsigned int ext_freq
= sensor
->platform_data
->ext_clk
;
998 u32 strobe_adjustment
;
999 u32 strobe_width_high_rs
;
1002 strobe_setup
= sensor
->platform_data
->strobe_setup
;
1005 * How to calculate registers related to strobe length. Please
1006 * do not change, or if you do at least know what you're
1009 * Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> 2010-10-25
1011 * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl
1012 * / EXTCLK freq [Hz]) * flash_strobe_adjustment
1014 * tFlash_strobe_width_ctrl E N, [1 - 0xffff]
1015 * flash_strobe_adjustment E N, [1 - 0xff]
1017 * The formula above is written as below to keep it on one
1020 * l / 10^6 = w / e * a
1022 * Let's mark w * a by x:
1030 * The strobe width must be at least as long as requested,
1031 * thus rounding upwards is needed.
1033 * x = (l * e + 10^6 - 1) / 10^6
1034 * -----------------------------
1036 * Maximum possible accuracy is wanted at all times. Thus keep
1037 * a as small as possible.
1039 * Calculate a, assuming maximum w, with rounding upwards:
1041 * a = (x + (2^16 - 1) - 1) / (2^16 - 1)
1042 * -------------------------------------
1044 * Thus, we also get w, with that a, with rounding upwards:
1046 * w = (x + a - 1) / a
1047 * -------------------
1051 * x E [1, (2^16 - 1) * (2^8 - 1)]
1053 * Substituting maximum x to the original formula (with rounding),
1054 * the maximum l is thus
1056 * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1
1058 * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e
1059 * --------------------------------------------------
1061 * flash_strobe_length must be clamped between 1 and
1062 * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq.
1066 * flash_strobe_adjustment = ((flash_strobe_length *
1067 * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1)
1069 * tFlash_strobe_width_ctrl = ((flash_strobe_length *
1070 * EXTCLK freq + 10^6 - 1) / 10^6 +
1071 * flash_strobe_adjustment - 1) / flash_strobe_adjustment
1073 tmp
= div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) -
1074 1000000 + 1, ext_freq
);
1075 strobe_setup
->strobe_width_high_us
=
1076 clamp_t(u32
, strobe_setup
->strobe_width_high_us
, 1, tmp
);
1078 tmp
= div_u64(((u64
)strobe_setup
->strobe_width_high_us
* (u64
)ext_freq
+
1079 1000000 - 1), 1000000ULL);
1080 strobe_adjustment
= (tmp
+ (1 << 16) - 1 - 1) / ((1 << 16) - 1);
1081 strobe_width_high_rs
= (tmp
+ strobe_adjustment
- 1) /
1084 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_MODE_RS
,
1085 strobe_setup
->mode
);
1089 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_STROBE_ADJUSTMENT
,
1094 rval
= smiapp_write(
1095 sensor
, SMIAPP_REG_U16_TFLASH_STROBE_WIDTH_HIGH_RS_CTRL
,
1096 strobe_width_high_rs
);
1100 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_TFLASH_STROBE_DELAY_RS_CTRL
,
1101 strobe_setup
->strobe_delay
);
1105 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_FLASH_STROBE_START_POINT
,
1106 strobe_setup
->stobe_start_point
);
1110 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FLASH_TRIGGER_RS
,
1111 strobe_setup
->trigger
);
1114 sensor
->platform_data
->strobe_setup
->trigger
= 0;
1119 /* -----------------------------------------------------------------------------
1123 static int smiapp_power_on(struct smiapp_sensor
*sensor
)
1125 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1129 rval
= regulator_enable(sensor
->vana
);
1131 dev_err(&client
->dev
, "failed to enable vana regulator\n");
1134 usleep_range(1000, 1000);
1136 if (sensor
->platform_data
->set_xclk
)
1137 rval
= sensor
->platform_data
->set_xclk(
1138 &sensor
->src
->sd
, sensor
->platform_data
->ext_clk
);
1140 rval
= clk_enable(sensor
->ext_clk
);
1142 dev_dbg(&client
->dev
, "failed to set xclk\n");
1145 usleep_range(1000, 1000);
1147 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1148 gpio_set_value(sensor
->platform_data
->xshutdown
, 1);
1150 sleep
= SMIAPP_RESET_DELAY(sensor
->platform_data
->ext_clk
);
1151 usleep_range(sleep
, sleep
);
1154 * Failures to respond to the address change command have been noticed.
1155 * Those failures seem to be caused by the sensor requiring a longer
1156 * boot time than advertised. An additional 10ms delay seems to work
1157 * around the issue, but the SMIA++ I2C write retry hack makes the delay
1158 * unnecessary. The failures need to be investigated to find a proper
1159 * fix, and a delay will likely need to be added here if the I2C write
1160 * retry hack is reverted before the root cause of the boot time issue
1164 if (sensor
->platform_data
->i2c_addr_alt
) {
1165 rval
= smiapp_change_cci_addr(sensor
);
1167 dev_err(&client
->dev
, "cci address change error\n");
1168 goto out_cci_addr_fail
;
1172 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_SOFTWARE_RESET
,
1173 SMIAPP_SOFTWARE_RESET
);
1175 dev_err(&client
->dev
, "software reset failed\n");
1176 goto out_cci_addr_fail
;
1179 if (sensor
->platform_data
->i2c_addr_alt
) {
1180 rval
= smiapp_change_cci_addr(sensor
);
1182 dev_err(&client
->dev
, "cci address change error\n");
1183 goto out_cci_addr_fail
;
1187 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_COMPRESSION_MODE
,
1188 SMIAPP_COMPRESSION_MODE_SIMPLE_PREDICTOR
);
1190 dev_err(&client
->dev
, "compression mode set failed\n");
1191 goto out_cci_addr_fail
;
1194 rval
= smiapp_write(
1195 sensor
, SMIAPP_REG_U16_EXTCLK_FREQUENCY_MHZ
,
1196 sensor
->platform_data
->ext_clk
/ (1000000 / (1 << 8)));
1198 dev_err(&client
->dev
, "extclk frequency set failed\n");
1199 goto out_cci_addr_fail
;
1202 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_CSI_LANE_MODE
,
1203 sensor
->platform_data
->lanes
- 1);
1205 dev_err(&client
->dev
, "csi lane mode set failed\n");
1206 goto out_cci_addr_fail
;
1209 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_FAST_STANDBY_CTRL
,
1210 SMIAPP_FAST_STANDBY_CTRL_IMMEDIATE
);
1212 dev_err(&client
->dev
, "fast standby set failed\n");
1213 goto out_cci_addr_fail
;
1216 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_CSI_SIGNALLING_MODE
,
1217 sensor
->platform_data
->csi_signalling_mode
);
1219 dev_err(&client
->dev
, "csi signalling mode set failed\n");
1220 goto out_cci_addr_fail
;
1223 /* DPHY control done by sensor based on requested link rate */
1224 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_DPHY_CTRL
,
1225 SMIAPP_DPHY_CTRL_UI
);
1229 rval
= smiapp_call_quirk(sensor
, post_poweron
);
1231 dev_err(&client
->dev
, "post_poweron quirks failed\n");
1232 goto out_cci_addr_fail
;
1235 /* Are we still initialising...? If yes, return here. */
1236 if (!sensor
->pixel_array
)
1239 rval
= v4l2_ctrl_handler_setup(
1240 &sensor
->pixel_array
->ctrl_handler
);
1242 goto out_cci_addr_fail
;
1244 rval
= v4l2_ctrl_handler_setup(&sensor
->src
->ctrl_handler
);
1246 goto out_cci_addr_fail
;
1248 mutex_lock(&sensor
->mutex
);
1249 rval
= smiapp_update_mode(sensor
);
1250 mutex_unlock(&sensor
->mutex
);
1252 goto out_cci_addr_fail
;
1257 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1258 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
1259 if (sensor
->platform_data
->set_xclk
)
1260 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
1262 clk_disable(sensor
->ext_clk
);
1265 regulator_disable(sensor
->vana
);
1269 static void smiapp_power_off(struct smiapp_sensor
*sensor
)
1272 * Currently power/clock to lens are enable/disabled separately
1273 * but they are essentially the same signals. So if the sensor is
1274 * powered off while the lens is powered on the sensor does not
1275 * really see a power off and next time the cci address change
1276 * will fail. So do a soft reset explicitly here.
1278 if (sensor
->platform_data
->i2c_addr_alt
)
1279 smiapp_write(sensor
,
1280 SMIAPP_REG_U8_SOFTWARE_RESET
,
1281 SMIAPP_SOFTWARE_RESET
);
1283 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
1284 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
1285 if (sensor
->platform_data
->set_xclk
)
1286 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
1288 clk_disable(sensor
->ext_clk
);
1289 usleep_range(5000, 5000);
1290 regulator_disable(sensor
->vana
);
1291 sensor
->streaming
= 0;
1294 static int smiapp_set_power(struct v4l2_subdev
*subdev
, int on
)
1296 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1299 mutex_lock(&sensor
->power_mutex
);
1302 * If the power count is modified from 0 to != 0 or from != 0
1303 * to 0, update the power state.
1305 if (!sensor
->power_count
== !on
)
1309 /* Power on and perform initialisation. */
1310 ret
= smiapp_power_on(sensor
);
1314 smiapp_power_off(sensor
);
1317 /* Update the power count. */
1318 sensor
->power_count
+= on
? 1 : -1;
1319 WARN_ON(sensor
->power_count
< 0);
1322 mutex_unlock(&sensor
->power_mutex
);
1326 /* -----------------------------------------------------------------------------
1327 * Video stream management
1330 static int smiapp_start_streaming(struct smiapp_sensor
*sensor
)
1332 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1335 mutex_lock(&sensor
->mutex
);
1337 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_CSI_DATA_FORMAT
,
1338 (sensor
->csi_format
->width
<< 8) |
1339 sensor
->csi_format
->compressed
);
1343 rval
= smiapp_pll_configure(sensor
);
1347 /* Analog crop start coordinates */
1348 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_X_ADDR_START
,
1349 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].left
);
1353 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_Y_ADDR_START
,
1354 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].top
);
1358 /* Analog crop end coordinates */
1359 rval
= smiapp_write(
1360 sensor
, SMIAPP_REG_U16_X_ADDR_END
,
1361 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].left
1362 + sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].width
- 1);
1366 rval
= smiapp_write(
1367 sensor
, SMIAPP_REG_U16_Y_ADDR_END
,
1368 sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].top
1369 + sensor
->pixel_array
->crop
[SMIAPP_PA_PAD_SRC
].height
- 1);
1374 * Output from pixel array, including blanking, is set using
1375 * controls below. No need to set here.
1379 if (sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
1380 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
) {
1381 rval
= smiapp_write(
1382 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET
,
1383 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].left
);
1387 rval
= smiapp_write(
1388 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_Y_OFFSET
,
1389 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].top
);
1393 rval
= smiapp_write(
1394 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_WIDTH
,
1395 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].width
);
1399 rval
= smiapp_write(
1400 sensor
, SMIAPP_REG_U16_DIGITAL_CROP_IMAGE_HEIGHT
,
1401 sensor
->scaler
->crop
[SMIAPP_PAD_SINK
].height
);
1407 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1408 != SMIAPP_SCALING_CAPABILITY_NONE
) {
1409 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_SCALING_MODE
,
1410 sensor
->scaling_mode
);
1414 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_SCALE_M
,
1420 /* Output size from sensor */
1421 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_X_OUTPUT_SIZE
,
1422 sensor
->src
->crop
[SMIAPP_PAD_SRC
].width
);
1425 rval
= smiapp_write(sensor
, SMIAPP_REG_U16_Y_OUTPUT_SIZE
,
1426 sensor
->src
->crop
[SMIAPP_PAD_SRC
].height
);
1430 if ((sensor
->flash_capability
&
1431 (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE
|
1432 SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE
)) &&
1433 sensor
->platform_data
->strobe_setup
!= NULL
&&
1434 sensor
->platform_data
->strobe_setup
->trigger
!= 0) {
1435 rval
= smiapp_setup_flash_strobe(sensor
);
1440 rval
= smiapp_call_quirk(sensor
, pre_streamon
);
1442 dev_err(&client
->dev
, "pre_streamon quirks failed\n");
1446 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_MODE_SELECT
,
1447 SMIAPP_MODE_SELECT_STREAMING
);
1450 mutex_unlock(&sensor
->mutex
);
1455 static int smiapp_stop_streaming(struct smiapp_sensor
*sensor
)
1457 struct i2c_client
*client
= v4l2_get_subdevdata(&sensor
->src
->sd
);
1460 mutex_lock(&sensor
->mutex
);
1461 rval
= smiapp_write(sensor
, SMIAPP_REG_U8_MODE_SELECT
,
1462 SMIAPP_MODE_SELECT_SOFTWARE_STANDBY
);
1466 rval
= smiapp_call_quirk(sensor
, post_streamoff
);
1468 dev_err(&client
->dev
, "post_streamoff quirks failed\n");
1471 mutex_unlock(&sensor
->mutex
);
1475 /* -----------------------------------------------------------------------------
1476 * V4L2 subdev video operations
1479 static int smiapp_set_stream(struct v4l2_subdev
*subdev
, int enable
)
1481 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1484 if (sensor
->streaming
== enable
)
1488 sensor
->streaming
= 1;
1489 rval
= smiapp_start_streaming(sensor
);
1491 sensor
->streaming
= 0;
1493 rval
= smiapp_stop_streaming(sensor
);
1494 sensor
->streaming
= 0;
1500 static int smiapp_enum_mbus_code(struct v4l2_subdev
*subdev
,
1501 struct v4l2_subdev_fh
*fh
,
1502 struct v4l2_subdev_mbus_code_enum
*code
)
1504 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1505 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1510 mutex_lock(&sensor
->mutex
);
1512 dev_err(&client
->dev
, "subdev %s, pad %d, index %d\n",
1513 subdev
->name
, code
->pad
, code
->index
);
1515 if (subdev
!= &sensor
->src
->sd
|| code
->pad
!= SMIAPP_PAD_SRC
) {
1519 code
->code
= sensor
->internal_csi_format
->code
;
1524 for (i
= 0; i
< ARRAY_SIZE(smiapp_csi_data_formats
); i
++) {
1525 if (sensor
->mbus_frame_fmts
& (1 << i
))
1528 if (idx
== code
->index
) {
1529 code
->code
= smiapp_csi_data_formats
[i
].code
;
1530 dev_err(&client
->dev
, "found index %d, i %d, code %x\n",
1531 code
->index
, i
, code
->code
);
1538 mutex_unlock(&sensor
->mutex
);
1543 static u32
__smiapp_get_mbus_code(struct v4l2_subdev
*subdev
,
1546 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1548 if (subdev
== &sensor
->src
->sd
&& pad
== SMIAPP_PAD_SRC
)
1549 return sensor
->csi_format
->code
;
1551 return sensor
->internal_csi_format
->code
;
1554 static int __smiapp_get_format(struct v4l2_subdev
*subdev
,
1555 struct v4l2_subdev_fh
*fh
,
1556 struct v4l2_subdev_format
*fmt
)
1558 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1560 if (fmt
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1561 fmt
->format
= *v4l2_subdev_get_try_format(fh
, fmt
->pad
);
1563 struct v4l2_rect
*r
;
1565 if (fmt
->pad
== ssd
->source_pad
)
1566 r
= &ssd
->crop
[ssd
->source_pad
];
1570 fmt
->format
.code
= __smiapp_get_mbus_code(subdev
, fmt
->pad
);
1571 fmt
->format
.width
= r
->width
;
1572 fmt
->format
.height
= r
->height
;
1578 static int smiapp_get_format(struct v4l2_subdev
*subdev
,
1579 struct v4l2_subdev_fh
*fh
,
1580 struct v4l2_subdev_format
*fmt
)
1582 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1585 mutex_lock(&sensor
->mutex
);
1586 rval
= __smiapp_get_format(subdev
, fh
, fmt
);
1587 mutex_unlock(&sensor
->mutex
);
1592 static void smiapp_get_crop_compose(struct v4l2_subdev
*subdev
,
1593 struct v4l2_subdev_fh
*fh
,
1594 struct v4l2_rect
**crops
,
1595 struct v4l2_rect
**comps
, int which
)
1597 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1600 if (which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1602 for (i
= 0; i
< subdev
->entity
.num_pads
; i
++)
1603 crops
[i
] = &ssd
->crop
[i
];
1605 *comps
= &ssd
->compose
;
1608 for (i
= 0; i
< subdev
->entity
.num_pads
; i
++) {
1609 crops
[i
] = v4l2_subdev_get_try_crop(fh
, i
);
1614 *comps
= v4l2_subdev_get_try_compose(fh
,
1621 /* Changes require propagation only on sink pad. */
1622 static void smiapp_propagate(struct v4l2_subdev
*subdev
,
1623 struct v4l2_subdev_fh
*fh
, int which
,
1626 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1627 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1628 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
1630 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, which
);
1633 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
1634 comp
->width
= crops
[SMIAPP_PAD_SINK
]->width
;
1635 comp
->height
= crops
[SMIAPP_PAD_SINK
]->height
;
1636 if (which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1637 if (ssd
== sensor
->scaler
) {
1640 SMIAPP_LIMIT_SCALER_N_MIN
];
1641 sensor
->scaling_mode
=
1642 SMIAPP_SCALING_MODE_NONE
;
1643 } else if (ssd
== sensor
->binner
) {
1644 sensor
->binning_horizontal
= 1;
1645 sensor
->binning_vertical
= 1;
1649 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
1650 *crops
[SMIAPP_PAD_SRC
] = *comp
;
1657 static const struct smiapp_csi_data_format
1658 *smiapp_validate_csi_data_format(struct smiapp_sensor
*sensor
, u32 code
)
1660 const struct smiapp_csi_data_format
*csi_format
= sensor
->csi_format
;
1663 for (i
= 0; i
< ARRAY_SIZE(smiapp_csi_data_formats
); i
++) {
1664 if (sensor
->mbus_frame_fmts
& (1 << i
)
1665 && smiapp_csi_data_formats
[i
].code
== code
)
1666 return &smiapp_csi_data_formats
[i
];
1672 static int smiapp_set_format(struct v4l2_subdev
*subdev
,
1673 struct v4l2_subdev_fh
*fh
,
1674 struct v4l2_subdev_format
*fmt
)
1676 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1677 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1678 struct v4l2_rect
*crops
[SMIAPP_PADS
];
1680 mutex_lock(&sensor
->mutex
);
1683 * Media bus code is changeable on src subdev's source pad. On
1684 * other source pads we just get format here.
1686 if (fmt
->pad
== ssd
->source_pad
) {
1687 u32 code
= fmt
->format
.code
;
1688 int rval
= __smiapp_get_format(subdev
, fh
, fmt
);
1690 if (!rval
&& subdev
== &sensor
->src
->sd
) {
1691 const struct smiapp_csi_data_format
*csi_format
=
1692 smiapp_validate_csi_data_format(sensor
, code
);
1693 if (fmt
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1694 sensor
->csi_format
= csi_format
;
1695 fmt
->format
.code
= csi_format
->code
;
1698 mutex_unlock(&sensor
->mutex
);
1702 /* Sink pad. Width and height are changeable here. */
1703 fmt
->format
.code
= __smiapp_get_mbus_code(subdev
, fmt
->pad
);
1704 fmt
->format
.width
&= ~1;
1705 fmt
->format
.height
&= ~1;
1708 clamp(fmt
->format
.width
,
1709 sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
],
1710 sensor
->limits
[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE
]);
1711 fmt
->format
.height
=
1712 clamp(fmt
->format
.height
,
1713 sensor
->limits
[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE
],
1714 sensor
->limits
[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE
]);
1716 smiapp_get_crop_compose(subdev
, fh
, crops
, NULL
, fmt
->which
);
1718 crops
[ssd
->sink_pad
]->left
= 0;
1719 crops
[ssd
->sink_pad
]->top
= 0;
1720 crops
[ssd
->sink_pad
]->width
= fmt
->format
.width
;
1721 crops
[ssd
->sink_pad
]->height
= fmt
->format
.height
;
1722 if (fmt
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1723 ssd
->sink_fmt
= *crops
[ssd
->sink_pad
];
1724 smiapp_propagate(subdev
, fh
, fmt
->which
,
1725 V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
);
1727 mutex_unlock(&sensor
->mutex
);
1733 * Calculate goodness of scaled image size compared to expected image
1734 * size and flags provided.
1736 #define SCALING_GOODNESS 100000
1737 #define SCALING_GOODNESS_EXTREME 100000000
1738 static int scaling_goodness(struct v4l2_subdev
*subdev
, int w
, int ask_w
,
1739 int h
, int ask_h
, u32 flags
)
1741 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1742 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1750 if (flags
& V4L2_SUBDEV_SEL_FLAG_SIZE_GE
) {
1752 val
-= SCALING_GOODNESS
;
1754 val
-= SCALING_GOODNESS
;
1757 if (flags
& V4L2_SUBDEV_SEL_FLAG_SIZE_LE
) {
1759 val
-= SCALING_GOODNESS
;
1761 val
-= SCALING_GOODNESS
;
1764 val
-= abs(w
- ask_w
);
1765 val
-= abs(h
- ask_h
);
1767 if (w
< sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
])
1768 val
-= SCALING_GOODNESS_EXTREME
;
1770 dev_dbg(&client
->dev
, "w %d ask_w %d h %d ask_h %d goodness %d\n",
1771 w
, ask_h
, h
, ask_h
, val
);
1776 static void smiapp_set_compose_binner(struct v4l2_subdev
*subdev
,
1777 struct v4l2_subdev_fh
*fh
,
1778 struct v4l2_subdev_selection
*sel
,
1779 struct v4l2_rect
**crops
,
1780 struct v4l2_rect
*comp
)
1782 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1784 unsigned int binh
= 1, binv
= 1;
1785 unsigned int best
= scaling_goodness(
1787 crops
[SMIAPP_PAD_SINK
]->width
, sel
->r
.width
,
1788 crops
[SMIAPP_PAD_SINK
]->height
, sel
->r
.height
, sel
->flags
);
1790 for (i
= 0; i
< sensor
->nbinning_subtypes
; i
++) {
1791 int this = scaling_goodness(
1793 crops
[SMIAPP_PAD_SINK
]->width
1794 / sensor
->binning_subtypes
[i
].horizontal
,
1796 crops
[SMIAPP_PAD_SINK
]->height
1797 / sensor
->binning_subtypes
[i
].vertical
,
1798 sel
->r
.height
, sel
->flags
);
1801 binh
= sensor
->binning_subtypes
[i
].horizontal
;
1802 binv
= sensor
->binning_subtypes
[i
].vertical
;
1806 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1807 sensor
->binning_vertical
= binv
;
1808 sensor
->binning_horizontal
= binh
;
1811 sel
->r
.width
= (crops
[SMIAPP_PAD_SINK
]->width
/ binh
) & ~1;
1812 sel
->r
.height
= (crops
[SMIAPP_PAD_SINK
]->height
/ binv
) & ~1;
1816 * Calculate best scaling ratio and mode for given output resolution.
1818 * Try all of these: horizontal ratio, vertical ratio and smallest
1819 * size possible (horizontally).
1821 * Also try whether horizontal scaler or full scaler gives a better
1824 static void smiapp_set_compose_scaler(struct v4l2_subdev
*subdev
,
1825 struct v4l2_subdev_fh
*fh
,
1826 struct v4l2_subdev_selection
*sel
,
1827 struct v4l2_rect
**crops
,
1828 struct v4l2_rect
*comp
)
1830 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
1831 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1832 u32 min
, max
, a
, b
, max_m
;
1833 u32 scale_m
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
1834 int mode
= SMIAPP_SCALING_MODE_HORIZONTAL
;
1840 sel
->r
.width
= min_t(unsigned int, sel
->r
.width
,
1841 crops
[SMIAPP_PAD_SINK
]->width
);
1842 sel
->r
.height
= min_t(unsigned int, sel
->r
.height
,
1843 crops
[SMIAPP_PAD_SINK
]->height
);
1845 a
= crops
[SMIAPP_PAD_SINK
]->width
1846 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] / sel
->r
.width
;
1847 b
= crops
[SMIAPP_PAD_SINK
]->height
1848 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
] / sel
->r
.height
;
1849 max_m
= crops
[SMIAPP_PAD_SINK
]->width
1850 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
]
1851 / sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
];
1853 a
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1854 max(a
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1855 b
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1856 max(b
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1857 max_m
= min(sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MAX
],
1858 max(max_m
, sensor
->limits
[SMIAPP_LIMIT_SCALER_M_MIN
]));
1860 dev_dbg(&client
->dev
, "scaling: a %d b %d max_m %d\n", a
, b
, max_m
);
1862 min
= min(max_m
, min(a
, b
));
1863 max
= min(max_m
, max(a
, b
));
1872 try[ntry
] = min
+ 1;
1875 try[ntry
] = max
+ 1;
1880 for (i
= 0; i
< ntry
; i
++) {
1881 int this = scaling_goodness(
1883 crops
[SMIAPP_PAD_SINK
]->width
1885 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1887 crops
[SMIAPP_PAD_SINK
]->height
,
1891 dev_dbg(&client
->dev
, "trying factor %d (%d)\n", try[i
], i
);
1895 mode
= SMIAPP_SCALING_MODE_HORIZONTAL
;
1899 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1900 == SMIAPP_SCALING_CAPABILITY_HORIZONTAL
)
1903 this = scaling_goodness(
1904 subdev
, crops
[SMIAPP_PAD_SINK
]->width
1906 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1908 crops
[SMIAPP_PAD_SINK
]->height
1910 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
],
1916 mode
= SMIAPP_SCALING_MODE_BOTH
;
1922 (crops
[SMIAPP_PAD_SINK
]->width
1924 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
]) & ~1;
1925 if (mode
== SMIAPP_SCALING_MODE_BOTH
)
1927 (crops
[SMIAPP_PAD_SINK
]->height
1929 * sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
])
1932 sel
->r
.height
= crops
[SMIAPP_PAD_SINK
]->height
;
1934 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
1935 sensor
->scale_m
= scale_m
;
1936 sensor
->scaling_mode
= mode
;
1939 /* We're only called on source pads. This function sets scaling. */
1940 static int smiapp_set_compose(struct v4l2_subdev
*subdev
,
1941 struct v4l2_subdev_fh
*fh
,
1942 struct v4l2_subdev_selection
*sel
)
1944 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1945 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1946 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
1948 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, sel
->which
);
1953 if (ssd
== sensor
->binner
)
1954 smiapp_set_compose_binner(subdev
, fh
, sel
, crops
, comp
);
1956 smiapp_set_compose_scaler(subdev
, fh
, sel
, crops
, comp
);
1959 smiapp_propagate(subdev
, fh
, sel
->which
,
1960 V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
);
1962 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
)
1963 return smiapp_update_mode(sensor
);
1968 static int __smiapp_sel_supported(struct v4l2_subdev
*subdev
,
1969 struct v4l2_subdev_selection
*sel
)
1971 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
1972 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
1974 /* We only implement crop in three places. */
1975 switch (sel
->target
) {
1976 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
1977 case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS
:
1978 if (ssd
== sensor
->pixel_array
1979 && sel
->pad
== SMIAPP_PA_PAD_SRC
)
1981 if (ssd
== sensor
->src
1982 && sel
->pad
== SMIAPP_PAD_SRC
)
1984 if (ssd
== sensor
->scaler
1985 && sel
->pad
== SMIAPP_PAD_SINK
1986 && sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
1987 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
)
1990 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
1991 case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS
:
1992 if (sel
->pad
== ssd
->source_pad
)
1994 if (ssd
== sensor
->binner
)
1996 if (ssd
== sensor
->scaler
1997 && sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
1998 != SMIAPP_SCALING_CAPABILITY_NONE
)
2006 static int smiapp_set_crop(struct v4l2_subdev
*subdev
,
2007 struct v4l2_subdev_fh
*fh
,
2008 struct v4l2_subdev_selection
*sel
)
2010 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2011 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
2012 struct v4l2_rect
*src_size
, *crops
[SMIAPP_PADS
];
2013 struct v4l2_rect _r
;
2015 smiapp_get_crop_compose(subdev
, fh
, crops
, NULL
, sel
->which
);
2017 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
2018 if (sel
->pad
== ssd
->sink_pad
)
2019 src_size
= &ssd
->sink_fmt
;
2021 src_size
= &ssd
->compose
;
2023 if (sel
->pad
== ssd
->sink_pad
) {
2026 _r
.width
= v4l2_subdev_get_try_format(fh
, sel
->pad
)
2028 _r
.height
= v4l2_subdev_get_try_format(fh
, sel
->pad
)
2033 v4l2_subdev_get_try_compose(
2038 if (ssd
== sensor
->src
&& sel
->pad
== SMIAPP_PAD_SRC
) {
2043 sel
->r
.width
= min(sel
->r
.width
, src_size
->width
);
2044 sel
->r
.height
= min(sel
->r
.height
, src_size
->height
);
2046 sel
->r
.left
= min(sel
->r
.left
, src_size
->width
- sel
->r
.width
);
2047 sel
->r
.top
= min(sel
->r
.top
, src_size
->height
- sel
->r
.height
);
2049 *crops
[sel
->pad
] = sel
->r
;
2051 if (ssd
!= sensor
->pixel_array
&& sel
->pad
== SMIAPP_PAD_SINK
)
2052 smiapp_propagate(subdev
, fh
, sel
->which
,
2053 V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
);
2058 static int __smiapp_get_selection(struct v4l2_subdev
*subdev
,
2059 struct v4l2_subdev_fh
*fh
,
2060 struct v4l2_subdev_selection
*sel
)
2062 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2063 struct smiapp_subdev
*ssd
= to_smiapp_subdev(subdev
);
2064 struct v4l2_rect
*comp
, *crops
[SMIAPP_PADS
];
2065 struct v4l2_rect sink_fmt
;
2068 ret
= __smiapp_sel_supported(subdev
, sel
);
2072 smiapp_get_crop_compose(subdev
, fh
, crops
, &comp
, sel
->which
);
2074 if (sel
->which
== V4L2_SUBDEV_FORMAT_ACTIVE
) {
2075 sink_fmt
= ssd
->sink_fmt
;
2077 struct v4l2_mbus_framefmt
*fmt
=
2078 v4l2_subdev_get_try_format(fh
, ssd
->sink_pad
);
2082 sink_fmt
.width
= fmt
->width
;
2083 sink_fmt
.height
= fmt
->height
;
2086 switch (sel
->target
) {
2087 case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS
:
2088 if (ssd
== sensor
->pixel_array
) {
2090 sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2092 sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2093 } else if (sel
->pad
== ssd
->sink_pad
) {
2099 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
2100 case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS
:
2101 sel
->r
= *crops
[sel
->pad
];
2103 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
2111 static int smiapp_get_selection(struct v4l2_subdev
*subdev
,
2112 struct v4l2_subdev_fh
*fh
,
2113 struct v4l2_subdev_selection
*sel
)
2115 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2118 mutex_lock(&sensor
->mutex
);
2119 rval
= __smiapp_get_selection(subdev
, fh
, sel
);
2120 mutex_unlock(&sensor
->mutex
);
2124 static int smiapp_set_selection(struct v4l2_subdev
*subdev
,
2125 struct v4l2_subdev_fh
*fh
,
2126 struct v4l2_subdev_selection
*sel
)
2128 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2131 ret
= __smiapp_sel_supported(subdev
, sel
);
2135 mutex_lock(&sensor
->mutex
);
2137 sel
->r
.left
= max(0, sel
->r
.left
& ~1);
2138 sel
->r
.top
= max(0, sel
->r
.top
& ~1);
2139 sel
->r
.width
= max(0, SMIAPP_ALIGN_DIM(sel
->r
.width
, sel
->flags
));
2140 sel
->r
.height
= max(0, SMIAPP_ALIGN_DIM(sel
->r
.height
, sel
->flags
));
2142 sel
->r
.width
= max_t(unsigned int,
2143 sensor
->limits
[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE
],
2145 sel
->r
.height
= max_t(unsigned int,
2146 sensor
->limits
[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE
],
2149 switch (sel
->target
) {
2150 case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL
:
2151 ret
= smiapp_set_crop(subdev
, fh
, sel
);
2153 case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL
:
2154 ret
= smiapp_set_compose(subdev
, fh
, sel
);
2160 mutex_unlock(&sensor
->mutex
);
2164 static int smiapp_get_skip_frames(struct v4l2_subdev
*subdev
, u32
*frames
)
2166 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2168 *frames
= sensor
->frame_skip
;
2172 /* -----------------------------------------------------------------------------
2177 smiapp_sysfs_nvm_read(struct device
*dev
, struct device_attribute
*attr
,
2180 struct v4l2_subdev
*subdev
= i2c_get_clientdata(to_i2c_client(dev
));
2181 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2182 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2183 unsigned int nbytes
;
2185 if (!sensor
->dev_init_done
)
2188 if (!sensor
->nvm_size
) {
2189 /* NVM not read yet - read it now */
2190 sensor
->nvm_size
= sensor
->platform_data
->nvm_size
;
2191 if (smiapp_set_power(subdev
, 1) < 0)
2193 if (smiapp_read_nvm(sensor
, sensor
->nvm
)) {
2194 dev_err(&client
->dev
, "nvm read failed\n");
2197 smiapp_set_power(subdev
, 0);
2200 * NVM is still way below a PAGE_SIZE, so we can safely
2201 * assume this for now.
2203 nbytes
= min_t(unsigned int, sensor
->nvm_size
, PAGE_SIZE
);
2204 memcpy(buf
, sensor
->nvm
, nbytes
);
2208 static DEVICE_ATTR(nvm
, S_IRUGO
, smiapp_sysfs_nvm_read
, NULL
);
2210 /* -----------------------------------------------------------------------------
2211 * V4L2 subdev core operations
2214 static int smiapp_identify_module(struct v4l2_subdev
*subdev
)
2216 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2217 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2218 struct smiapp_module_info
*minfo
= &sensor
->minfo
;
2222 minfo
->name
= SMIAPP_NAME
;
2225 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_MANUFACTURER_ID
,
2226 &minfo
->manufacturer_id
);
2228 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U16_MODEL_ID
,
2231 rval
= smiapp_read_8only(sensor
,
2232 SMIAPP_REG_U8_REVISION_NUMBER_MAJOR
,
2233 &minfo
->revision_number_major
);
2235 rval
= smiapp_read_8only(sensor
,
2236 SMIAPP_REG_U8_REVISION_NUMBER_MINOR
,
2237 &minfo
->revision_number_minor
);
2239 rval
= smiapp_read_8only(sensor
,
2240 SMIAPP_REG_U8_MODULE_DATE_YEAR
,
2241 &minfo
->module_year
);
2243 rval
= smiapp_read_8only(sensor
,
2244 SMIAPP_REG_U8_MODULE_DATE_MONTH
,
2245 &minfo
->module_month
);
2247 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_MODULE_DATE_DAY
,
2248 &minfo
->module_day
);
2252 rval
= smiapp_read_8only(sensor
,
2253 SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID
,
2254 &minfo
->sensor_manufacturer_id
);
2256 rval
= smiapp_read_8only(sensor
,
2257 SMIAPP_REG_U16_SENSOR_MODEL_ID
,
2258 &minfo
->sensor_model_id
);
2260 rval
= smiapp_read_8only(sensor
,
2261 SMIAPP_REG_U8_SENSOR_REVISION_NUMBER
,
2262 &minfo
->sensor_revision_number
);
2264 rval
= smiapp_read_8only(sensor
,
2265 SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION
,
2266 &minfo
->sensor_firmware_version
);
2270 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_SMIA_VERSION
,
2271 &minfo
->smia_version
);
2273 rval
= smiapp_read_8only(sensor
, SMIAPP_REG_U8_SMIAPP_VERSION
,
2274 &minfo
->smiapp_version
);
2277 dev_err(&client
->dev
, "sensor detection failed\n");
2281 dev_dbg(&client
->dev
, "module 0x%2.2x-0x%4.4x\n",
2282 minfo
->manufacturer_id
, minfo
->model_id
);
2284 dev_dbg(&client
->dev
,
2285 "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n",
2286 minfo
->revision_number_major
, minfo
->revision_number_minor
,
2287 minfo
->module_year
, minfo
->module_month
, minfo
->module_day
);
2289 dev_dbg(&client
->dev
, "sensor 0x%2.2x-0x%4.4x\n",
2290 minfo
->sensor_manufacturer_id
, minfo
->sensor_model_id
);
2292 dev_dbg(&client
->dev
,
2293 "sensor revision 0x%2.2x firmware version 0x%2.2x\n",
2294 minfo
->sensor_revision_number
, minfo
->sensor_firmware_version
);
2296 dev_dbg(&client
->dev
, "smia version %2.2d smiapp version %2.2d\n",
2297 minfo
->smia_version
, minfo
->smiapp_version
);
2300 * Some modules have bad data in the lvalues below. Hope the
2301 * rvalues have better stuff. The lvalues are module
2302 * parameters whereas the rvalues are sensor parameters.
2304 if (!minfo
->manufacturer_id
&& !minfo
->model_id
) {
2305 minfo
->manufacturer_id
= minfo
->sensor_manufacturer_id
;
2306 minfo
->model_id
= minfo
->sensor_model_id
;
2307 minfo
->revision_number_major
= minfo
->sensor_revision_number
;
2310 for (i
= 0; i
< ARRAY_SIZE(smiapp_module_idents
); i
++) {
2311 if (smiapp_module_idents
[i
].manufacturer_id
2312 != minfo
->manufacturer_id
)
2314 if (smiapp_module_idents
[i
].model_id
!= minfo
->model_id
)
2316 if (smiapp_module_idents
[i
].flags
2317 & SMIAPP_MODULE_IDENT_FLAG_REV_LE
) {
2318 if (smiapp_module_idents
[i
].revision_number_major
2319 < minfo
->revision_number_major
)
2322 if (smiapp_module_idents
[i
].revision_number_major
2323 != minfo
->revision_number_major
)
2327 minfo
->name
= smiapp_module_idents
[i
].name
;
2328 minfo
->quirk
= smiapp_module_idents
[i
].quirk
;
2332 if (i
>= ARRAY_SIZE(smiapp_module_idents
))
2333 dev_warn(&client
->dev
,
2334 "no quirks for this module; let's hope it's fully compliant\n");
2336 dev_dbg(&client
->dev
, "the sensor is called %s, ident %2.2x%4.4x%2.2x\n",
2337 minfo
->name
, minfo
->manufacturer_id
, minfo
->model_id
,
2338 minfo
->revision_number_major
);
2340 strlcpy(subdev
->name
, sensor
->minfo
.name
, sizeof(subdev
->name
));
2345 static const struct v4l2_subdev_ops smiapp_ops
;
2346 static const struct v4l2_subdev_internal_ops smiapp_internal_ops
;
2347 static const struct media_entity_operations smiapp_entity_ops
;
2349 static int smiapp_registered(struct v4l2_subdev
*subdev
)
2351 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2352 struct i2c_client
*client
= v4l2_get_subdevdata(subdev
);
2353 struct smiapp_subdev
*last
= NULL
;
2358 sensor
->vana
= regulator_get(&client
->dev
, "VANA");
2359 if (IS_ERR(sensor
->vana
)) {
2360 dev_err(&client
->dev
, "could not get regulator for vana\n");
2364 if (!sensor
->platform_data
->set_xclk
) {
2365 sensor
->ext_clk
= clk_get(&client
->dev
,
2366 sensor
->platform_data
->ext_clk_name
);
2367 if (IS_ERR(sensor
->ext_clk
)) {
2368 dev_err(&client
->dev
, "could not get clock %s\n",
2369 sensor
->platform_data
->ext_clk_name
);
2374 rval
= clk_set_rate(sensor
->ext_clk
,
2375 sensor
->platform_data
->ext_clk
);
2377 dev_err(&client
->dev
,
2378 "unable to set clock %s freq to %u\n",
2379 sensor
->platform_data
->ext_clk_name
,
2380 sensor
->platform_data
->ext_clk
);
2382 goto out_clk_set_rate
;
2386 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
) {
2387 if (gpio_request_one(sensor
->platform_data
->xshutdown
, 0,
2388 "SMIA++ xshutdown") != 0) {
2389 dev_err(&client
->dev
,
2390 "unable to acquire reset gpio %d\n",
2391 sensor
->platform_data
->xshutdown
);
2393 goto out_clk_set_rate
;
2397 rval
= smiapp_power_on(sensor
);
2400 goto out_smiapp_power_on
;
2403 rval
= smiapp_identify_module(subdev
);
2409 rval
= smiapp_get_all_limits(sensor
);
2416 * Handle Sensor Module orientation on the board.
2418 * The application of H-FLIP and V-FLIP on the sensor is modified by
2419 * the sensor orientation on the board.
2421 * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set
2422 * both H-FLIP and V-FLIP for normal operation which also implies
2423 * that a set/unset operation for user space HFLIP and VFLIP v4l2
2424 * controls will need to be internally inverted.
2426 * Rotation also changes the bayer pattern.
2428 if (sensor
->platform_data
->module_board_orient
==
2429 SMIAPP_MODULE_BOARD_ORIENT_180
)
2430 sensor
->hvflip_inv_mask
= SMIAPP_IMAGE_ORIENTATION_HFLIP
|
2431 SMIAPP_IMAGE_ORIENTATION_VFLIP
;
2433 rval
= smiapp_get_mbus_formats(sensor
);
2439 if (sensor
->limits
[SMIAPP_LIMIT_BINNING_CAPABILITY
]) {
2442 rval
= smiapp_read(sensor
,
2443 SMIAPP_REG_U8_BINNING_SUBTYPES
, &val
);
2448 sensor
->nbinning_subtypes
= min_t(u8
, val
,
2449 SMIAPP_BINNING_SUBTYPES
);
2451 for (i
= 0; i
< sensor
->nbinning_subtypes
; i
++) {
2453 sensor
, SMIAPP_REG_U8_BINNING_TYPE_n(i
), &val
);
2458 sensor
->binning_subtypes
[i
] =
2459 *(struct smiapp_binning_subtype
*)&val
;
2461 dev_dbg(&client
->dev
, "binning %xx%x\n",
2462 sensor
->binning_subtypes
[i
].horizontal
,
2463 sensor
->binning_subtypes
[i
].vertical
);
2466 sensor
->binning_horizontal
= 1;
2467 sensor
->binning_vertical
= 1;
2469 /* SMIA++ NVM initialization - it will be read from the sensor
2470 * when it is first requested by userspace.
2472 if (sensor
->minfo
.smiapp_version
&& sensor
->platform_data
->nvm_size
) {
2473 sensor
->nvm
= kzalloc(sensor
->platform_data
->nvm_size
,
2475 if (sensor
->nvm
== NULL
) {
2476 dev_err(&client
->dev
, "nvm buf allocation failed\n");
2481 if (device_create_file(&client
->dev
, &dev_attr_nvm
) != 0) {
2482 dev_err(&client
->dev
, "sysfs nvm entry failed\n");
2488 rval
= smiapp_call_quirk(sensor
, limits
);
2490 dev_err(&client
->dev
, "limits quirks failed\n");
2491 goto out_nvm_release
;
2494 /* We consider this as profile 0 sensor if any of these are zero. */
2495 if (!sensor
->limits
[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV
] ||
2496 !sensor
->limits
[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV
] ||
2497 !sensor
->limits
[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV
] ||
2498 !sensor
->limits
[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV
]) {
2499 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_0
;
2500 } else if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
2501 != SMIAPP_SCALING_CAPABILITY_NONE
) {
2502 if (sensor
->limits
[SMIAPP_LIMIT_SCALING_CAPABILITY
]
2503 == SMIAPP_SCALING_CAPABILITY_HORIZONTAL
)
2504 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_1
;
2506 sensor
->minfo
.smiapp_profile
= SMIAPP_PROFILE_2
;
2507 sensor
->scaler
= &sensor
->ssds
[sensor
->ssds_used
];
2508 sensor
->ssds_used
++;
2509 } else if (sensor
->limits
[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY
]
2510 == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP
) {
2511 sensor
->scaler
= &sensor
->ssds
[sensor
->ssds_used
];
2512 sensor
->ssds_used
++;
2514 sensor
->binner
= &sensor
->ssds
[sensor
->ssds_used
];
2515 sensor
->ssds_used
++;
2516 sensor
->pixel_array
= &sensor
->ssds
[sensor
->ssds_used
];
2517 sensor
->ssds_used
++;
2519 sensor
->scale_m
= sensor
->limits
[SMIAPP_LIMIT_SCALER_N_MIN
];
2521 for (i
= 0; i
< SMIAPP_SUBDEVS
; i
++) {
2523 struct smiapp_subdev
*ssd
;
2525 } const __this
[] = {
2526 { sensor
->scaler
, "scaler", },
2527 { sensor
->binner
, "binner", },
2528 { sensor
->pixel_array
, "pixel array", },
2529 }, *_this
= &__this
[i
];
2530 struct smiapp_subdev
*this = _this
->ssd
;
2535 if (this != sensor
->src
)
2536 v4l2_subdev_init(&this->sd
, &smiapp_ops
);
2538 this->sensor
= sensor
;
2540 if (this == sensor
->pixel_array
) {
2544 this->source_pad
= 1;
2547 snprintf(this->sd
.name
,
2548 sizeof(this->sd
.name
), "%s %s",
2549 sensor
->minfo
.name
, _this
->name
);
2551 this->sink_fmt
.width
=
2552 sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2553 this->sink_fmt
.height
=
2554 sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2555 this->compose
.width
= this->sink_fmt
.width
;
2556 this->compose
.height
= this->sink_fmt
.height
;
2557 this->crop
[this->source_pad
] = this->compose
;
2558 this->pads
[this->source_pad
].flags
= MEDIA_PAD_FL_SOURCE
;
2559 if (this != sensor
->pixel_array
) {
2560 this->crop
[this->sink_pad
] = this->compose
;
2561 this->pads
[this->sink_pad
].flags
= MEDIA_PAD_FL_SINK
;
2564 this->sd
.entity
.ops
= &smiapp_entity_ops
;
2571 this->sd
.flags
|= V4L2_SUBDEV_FL_HAS_DEVNODE
;
2572 this->sd
.internal_ops
= &smiapp_internal_ops
;
2573 this->sd
.owner
= NULL
;
2574 v4l2_set_subdevdata(&this->sd
, client
);
2576 rval
= media_entity_init(&this->sd
.entity
,
2577 this->npads
, this->pads
, 0);
2579 dev_err(&client
->dev
,
2580 "media_entity_init failed\n");
2581 goto out_nvm_release
;
2584 rval
= media_entity_create_link(&this->sd
.entity
,
2588 MEDIA_LNK_FL_ENABLED
|
2589 MEDIA_LNK_FL_IMMUTABLE
);
2591 dev_err(&client
->dev
,
2592 "media_entity_create_link failed\n");
2593 goto out_nvm_release
;
2596 rval
= v4l2_device_register_subdev(sensor
->src
->sd
.v4l2_dev
,
2599 dev_err(&client
->dev
,
2600 "v4l2_device_register_subdev failed\n");
2601 goto out_nvm_release
;
2607 dev_dbg(&client
->dev
, "profile %d\n", sensor
->minfo
.smiapp_profile
);
2609 sensor
->pixel_array
->sd
.entity
.type
= MEDIA_ENT_T_V4L2_SUBDEV_SENSOR
;
2612 smiapp_read_frame_fmt(sensor
);
2613 rval
= smiapp_init_controls(sensor
);
2615 goto out_nvm_release
;
2617 rval
= smiapp_update_mode(sensor
);
2619 dev_err(&client
->dev
, "update mode failed\n");
2620 goto out_nvm_release
;
2623 sensor
->streaming
= false;
2624 sensor
->dev_init_done
= true;
2626 /* check flash capability */
2627 rval
= smiapp_read(sensor
, SMIAPP_REG_U8_FLASH_MODE_CAPABILITY
, &tmp
);
2628 sensor
->flash_capability
= tmp
;
2630 goto out_nvm_release
;
2632 smiapp_power_off(sensor
);
2637 device_remove_file(&client
->dev
, &dev_attr_nvm
);
2642 smiapp_power_off(sensor
);
2644 out_smiapp_power_on
:
2645 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2646 gpio_free(sensor
->platform_data
->xshutdown
);
2649 clk_put(sensor
->ext_clk
);
2650 sensor
->ext_clk
= NULL
;
2653 regulator_put(sensor
->vana
);
2654 sensor
->vana
= NULL
;
2658 static int smiapp_open(struct v4l2_subdev
*sd
, struct v4l2_subdev_fh
*fh
)
2660 struct smiapp_subdev
*ssd
= to_smiapp_subdev(sd
);
2661 struct smiapp_sensor
*sensor
= ssd
->sensor
;
2663 smiapp_csi_data_formats
[smiapp_pixel_order(sensor
)].code
;
2666 mutex_lock(&sensor
->mutex
);
2668 for (i
= 0; i
< ssd
->npads
; i
++) {
2669 struct v4l2_mbus_framefmt
*try_fmt
=
2670 v4l2_subdev_get_try_format(fh
, i
);
2671 struct v4l2_rect
*try_crop
= v4l2_subdev_get_try_crop(fh
, i
);
2672 struct v4l2_rect
*try_comp
;
2674 try_fmt
->width
= sensor
->limits
[SMIAPP_LIMIT_X_ADDR_MAX
] + 1;
2675 try_fmt
->height
= sensor
->limits
[SMIAPP_LIMIT_Y_ADDR_MAX
] + 1;
2676 try_fmt
->code
= mbus_code
;
2680 try_crop
->width
= try_fmt
->width
;
2681 try_crop
->height
= try_fmt
->height
;
2683 if (ssd
!= sensor
->pixel_array
)
2686 try_comp
= v4l2_subdev_get_try_compose(fh
, i
);
2687 *try_comp
= *try_crop
;
2690 mutex_unlock(&sensor
->mutex
);
2692 return smiapp_set_power(sd
, 1);
2695 static int smiapp_close(struct v4l2_subdev
*sd
, struct v4l2_subdev_fh
*fh
)
2697 return smiapp_set_power(sd
, 0);
2700 static const struct v4l2_subdev_video_ops smiapp_video_ops
= {
2701 .s_stream
= smiapp_set_stream
,
2704 static const struct v4l2_subdev_core_ops smiapp_core_ops
= {
2705 .s_power
= smiapp_set_power
,
2708 static const struct v4l2_subdev_pad_ops smiapp_pad_ops
= {
2709 .enum_mbus_code
= smiapp_enum_mbus_code
,
2710 .get_fmt
= smiapp_get_format
,
2711 .set_fmt
= smiapp_set_format
,
2712 .get_selection
= smiapp_get_selection
,
2713 .set_selection
= smiapp_set_selection
,
2716 static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops
= {
2717 .g_skip_frames
= smiapp_get_skip_frames
,
2720 static const struct v4l2_subdev_ops smiapp_ops
= {
2721 .core
= &smiapp_core_ops
,
2722 .video
= &smiapp_video_ops
,
2723 .pad
= &smiapp_pad_ops
,
2724 .sensor
= &smiapp_sensor_ops
,
2727 static const struct media_entity_operations smiapp_entity_ops
= {
2728 .link_validate
= v4l2_subdev_link_validate
,
2731 static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops
= {
2732 .registered
= smiapp_registered
,
2733 .open
= smiapp_open
,
2734 .close
= smiapp_close
,
2737 static const struct v4l2_subdev_internal_ops smiapp_internal_ops
= {
2738 .open
= smiapp_open
,
2739 .close
= smiapp_close
,
2742 /* -----------------------------------------------------------------------------
2748 static int smiapp_suspend(struct device
*dev
)
2750 struct i2c_client
*client
= to_i2c_client(dev
);
2751 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2752 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2755 BUG_ON(mutex_is_locked(&sensor
->mutex
));
2757 if (sensor
->power_count
== 0)
2760 if (sensor
->streaming
)
2761 smiapp_stop_streaming(sensor
);
2763 streaming
= sensor
->streaming
;
2765 smiapp_power_off(sensor
);
2767 /* save state for resume */
2768 sensor
->streaming
= streaming
;
2773 static int smiapp_resume(struct device
*dev
)
2775 struct i2c_client
*client
= to_i2c_client(dev
);
2776 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2777 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2780 if (sensor
->power_count
== 0)
2783 rval
= smiapp_power_on(sensor
);
2787 if (sensor
->streaming
)
2788 rval
= smiapp_start_streaming(sensor
);
2795 #define smiapp_suspend NULL
2796 #define smiapp_resume NULL
2798 #endif /* CONFIG_PM */
2800 static int smiapp_probe(struct i2c_client
*client
,
2801 const struct i2c_device_id
*devid
)
2803 struct smiapp_sensor
*sensor
;
2806 if (client
->dev
.platform_data
== NULL
)
2809 sensor
= kzalloc(sizeof(*sensor
), GFP_KERNEL
);
2813 sensor
->platform_data
= client
->dev
.platform_data
;
2814 mutex_init(&sensor
->mutex
);
2815 mutex_init(&sensor
->power_mutex
);
2816 sensor
->src
= &sensor
->ssds
[sensor
->ssds_used
];
2818 v4l2_i2c_subdev_init(&sensor
->src
->sd
, client
, &smiapp_ops
);
2819 sensor
->src
->sd
.internal_ops
= &smiapp_internal_src_ops
;
2820 sensor
->src
->sd
.flags
|= V4L2_SUBDEV_FL_HAS_DEVNODE
;
2821 sensor
->src
->sensor
= sensor
;
2823 sensor
->src
->pads
[0].flags
= MEDIA_PAD_FL_SOURCE
;
2824 rval
= media_entity_init(&sensor
->src
->sd
.entity
, 2,
2825 sensor
->src
->pads
, 0);
2832 static int __exit
smiapp_remove(struct i2c_client
*client
)
2834 struct v4l2_subdev
*subdev
= i2c_get_clientdata(client
);
2835 struct smiapp_sensor
*sensor
= to_smiapp_sensor(subdev
);
2838 if (sensor
->power_count
) {
2839 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2840 gpio_set_value(sensor
->platform_data
->xshutdown
, 0);
2841 if (sensor
->platform_data
->set_xclk
)
2842 sensor
->platform_data
->set_xclk(&sensor
->src
->sd
, 0);
2844 clk_disable(sensor
->ext_clk
);
2845 sensor
->power_count
= 0;
2849 device_remove_file(&client
->dev
, &dev_attr_nvm
);
2853 for (i
= 0; i
< sensor
->ssds_used
; i
++) {
2854 media_entity_cleanup(&sensor
->ssds
[i
].sd
.entity
);
2855 v4l2_device_unregister_subdev(&sensor
->ssds
[i
].sd
);
2857 smiapp_free_controls(sensor
);
2858 if (sensor
->platform_data
->xshutdown
!= SMIAPP_NO_XSHUTDOWN
)
2859 gpio_free(sensor
->platform_data
->xshutdown
);
2860 if (sensor
->ext_clk
)
2861 clk_put(sensor
->ext_clk
);
2863 regulator_put(sensor
->vana
);
2870 static const struct i2c_device_id smiapp_id_table
[] = {
2874 MODULE_DEVICE_TABLE(i2c
, smiapp_id_table
);
2876 static const struct dev_pm_ops smiapp_pm_ops
= {
2877 .suspend
= smiapp_suspend
,
2878 .resume
= smiapp_resume
,
2881 static struct i2c_driver smiapp_i2c_driver
= {
2883 .name
= SMIAPP_NAME
,
2884 .pm
= &smiapp_pm_ops
,
2886 .probe
= smiapp_probe
,
2887 .remove
= __exit_p(smiapp_remove
),
2888 .id_table
= smiapp_id_table
,
2891 module_i2c_driver(smiapp_i2c_driver
);
2893 MODULE_AUTHOR("Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>");
2894 MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver");
2895 MODULE_LICENSE("GPL");