diff options
Diffstat (limited to 'drivers/media/i2c/vs6624.c')
| -rw-r--r-- | drivers/media/i2c/vs6624.c | 928 |
1 files changed, 928 insertions, 0 deletions
diff --git a/drivers/media/i2c/vs6624.c b/drivers/media/i2c/vs6624.c new file mode 100644 index 000000000000..42ae9dc9c574 --- /dev/null +++ b/drivers/media/i2c/vs6624.c @@ -0,0 +1,928 @@ +/* + * vs6624.c ST VS6624 CMOS image sensor driver + * + * Copyright (c) 2011 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/videodev2.h> + +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mediabus.h> + +#include "vs6624_regs.h" + +#define VGA_WIDTH 640 +#define VGA_HEIGHT 480 +#define QVGA_WIDTH 320 +#define QVGA_HEIGHT 240 +#define QQVGA_WIDTH 160 +#define QQVGA_HEIGHT 120 +#define CIF_WIDTH 352 +#define CIF_HEIGHT 288 +#define QCIF_WIDTH 176 +#define QCIF_HEIGHT 144 +#define QQCIF_WIDTH 88 +#define QQCIF_HEIGHT 72 + +#define MAX_FRAME_RATE 30 + +struct vs6624 { + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; + struct v4l2_fract frame_rate; + struct v4l2_mbus_framefmt fmt; + unsigned ce_pin; +}; + +static const struct vs6624_format { + enum v4l2_mbus_pixelcode mbus_code; + enum v4l2_colorspace colorspace; +} vs6624_formats[] = { + { + .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + }, + { + .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + }, + { + .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE, + .colorspace = V4L2_COLORSPACE_SRGB, + }, +}; + +static struct v4l2_mbus_framefmt vs6624_default_fmt = { + .width = VGA_WIDTH, + .height = VGA_HEIGHT, + .code = V4L2_MBUS_FMT_UYVY8_2X8, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_JPEG, +}; + +static const u16 vs6624_p1[] = { + 0x8104, 0x03, + 0x8105, 0x01, + 0xc900, 0x03, + 0xc904, 0x47, + 0xc905, 0x10, + 0xc906, 0x80, + 0xc907, 0x3a, + 0x903a, 0x02, + 0x903b, 0x47, + 0x903c, 0x15, + 0xc908, 0x31, + 0xc909, 0xdc, + 0xc90a, 0x80, + 0xc90b, 0x44, + 0x9044, 0x02, + 0x9045, 0x31, + 0x9046, 0xe2, + 0xc90c, 0x07, + 0xc90d, 0xe0, + 0xc90e, 0x80, + 0xc90f, 0x47, + 0x9047, 0x90, + 0x9048, 0x83, + 0x9049, 0x81, + 0x904a, 0xe0, + 0x904b, 0x60, + 0x904c, 0x08, + 0x904d, 0x90, + 0x904e, 0xc0, + 0x904f, 0x43, + 0x9050, 0x74, + 0x9051, 0x01, + 0x9052, 0xf0, + 0x9053, 0x80, + 0x9054, 0x05, + 0x9055, 0xE4, + 0x9056, 0x90, + 0x9057, 0xc0, + 0x9058, 0x43, + 0x9059, 0xf0, + 0x905a, 0x02, + 0x905b, 0x07, + 0x905c, 0xec, + 0xc910, 0x5d, + 0xc911, 0xca, + 0xc912, 0x80, + 0xc913, 0x5d, + 0x905d, 0xa3, + 0x905e, 0x04, + 0x905f, 0xf0, + 0x9060, 0xa3, + 0x9061, 0x04, + 0x9062, 0xf0, + 0x9063, 0x22, + 0xc914, 0x72, + 0xc915, 0x92, + 0xc916, 0x80, + 0xc917, 0x64, + 0x9064, 0x74, + 0x9065, 0x01, + 0x9066, 0x02, + 0x9067, 0x72, + 0x9068, 0x95, + 0xc918, 0x47, + 0xc919, 0xf2, + 0xc91a, 0x81, + 0xc91b, 0x69, + 0x9169, 0x74, + 0x916a, 0x02, + 0x916b, 0xf0, + 0x916c, 0xec, + 0x916d, 0xb4, + 0x916e, 0x10, + 0x916f, 0x0a, + 0x9170, 0x90, + 0x9171, 0x80, + 0x9172, 0x16, + 0x9173, 0xe0, + 0x9174, 0x70, + 0x9175, 0x04, + 0x9176, 0x90, + 0x9177, 0xd3, + 0x9178, 0xc4, + 0x9179, 0xf0, + 0x917a, 0x22, + 0xc91c, 0x0a, + 0xc91d, 0xbe, + 0xc91e, 0x80, + 0xc91f, 0x73, + 0x9073, 0xfc, + 0x9074, 0xa3, + 0x9075, 0xe0, + 0x9076, 0xf5, + 0x9077, 0x82, + 0x9078, 0x8c, + 0x9079, 0x83, + 0x907a, 0xa3, + 0x907b, 0xa3, + 0x907c, 0xe0, + 0x907d, 0xfc, + 0x907e, 0xa3, + 0x907f, 0xe0, + 0x9080, 0xc3, + 0x9081, 0x9f, + 0x9082, 0xff, + 0x9083, 0xec, + 0x9084, 0x9e, + 0x9085, 0xfe, + 0x9086, 0x02, + 0x9087, 0x0a, + 0x9088, 0xea, + 0xc920, 0x47, + 0xc921, 0x38, + 0xc922, 0x80, + 0xc923, 0x89, + 0x9089, 0xec, + 0x908a, 0xd3, + 0x908b, 0x94, + 0x908c, 0x20, + 0x908d, 0x40, + 0x908e, 0x01, + 0x908f, 0x1c, + 0x9090, 0x90, + 0x9091, 0xd3, + 0x9092, 0xd4, + 0x9093, 0xec, + 0x9094, 0xf0, + 0x9095, 0x02, + 0x9096, 0x47, + 0x9097, 0x3d, + 0xc924, 0x45, + 0xc925, 0xca, + 0xc926, 0x80, + 0xc927, 0x98, + 0x9098, 0x12, + 0x9099, 0x77, + 0x909a, 0xd6, + 0x909b, 0x02, + 0x909c, 0x45, + 0x909d, 0xcd, + 0xc928, 0x20, + 0xc929, 0xd5, + 0xc92a, 0x80, + 0xc92b, 0x9e, + 0x909e, 0x90, + 0x909f, 0x82, + 0x90a0, 0x18, + 0x90a1, 0xe0, + 0x90a2, 0xb4, + 0x90a3, 0x03, + 0x90a4, 0x0e, + 0x90a5, 0x90, + 0x90a6, 0x83, + 0x90a7, 0xbf, + 0x90a8, 0xe0, + 0x90a9, 0x60, + 0x90aa, 0x08, + 0x90ab, 0x90, + 0x90ac, 0x81, + 0x90ad, 0xfc, + 0x90ae, 0xe0, + 0x90af, 0xff, + 0x90b0, 0xc3, + 0x90b1, 0x13, + 0x90b2, 0xf0, + 0x90b3, 0x90, + 0x90b4, 0x81, + 0x90b5, 0xfc, + 0x90b6, 0xe0, + 0x90b7, 0xff, + 0x90b8, 0x02, + 0x90b9, 0x20, + 0x90ba, 0xda, + 0xc92c, 0x70, + 0xc92d, 0xbc, + 0xc92e, 0x80, + 0xc92f, 0xbb, + 0x90bb, 0x90, + 0x90bc, 0x82, + 0x90bd, 0x18, + 0x90be, 0xe0, + 0x90bf, 0xb4, + 0x90c0, 0x03, + 0x90c1, 0x06, + 0x90c2, 0x90, + 0x90c3, 0xc1, + 0x90c4, 0x06, + 0x90c5, 0x74, + 0x90c6, 0x05, + 0x90c7, 0xf0, + 0x90c8, 0x90, + 0x90c9, 0xd3, + 0x90ca, 0xa0, + 0x90cb, 0x02, + 0x90cc, 0x70, + 0x90cd, 0xbf, + 0xc930, 0x72, + 0xc931, 0x21, + 0xc932, 0x81, + 0xc933, 0x3b, + 0x913b, 0x7d, + 0x913c, 0x02, + 0x913d, 0x7f, + 0x913e, 0x7b, + 0x913f, 0x02, + 0x9140, 0x72, + 0x9141, 0x25, + 0xc934, 0x28, + 0xc935, 0xae, + 0xc936, 0x80, + 0xc937, 0xd2, + 0x90d2, 0xf0, + 0x90d3, 0x90, + 0x90d4, 0xd2, + 0x90d5, 0x0a, + 0x90d6, 0x02, + 0x90d7, 0x28, + 0x90d8, 0xb4, + 0xc938, 0x28, + 0xc939, 0xb1, + 0xc93a, 0x80, + 0xc93b, 0xd9, + 0x90d9, 0x90, + 0x90da, 0x83, + 0x90db, 0xba, + 0x90dc, 0xe0, + 0x90dd, 0xff, + 0x90de, 0x90, + 0x90df, 0xd2, + 0x90e0, 0x08, + 0x90e1, 0xe0, + 0x90e2, 0xe4, + 0x90e3, 0xef, + 0x90e4, 0xf0, + 0x90e5, 0xa3, + 0x90e6, 0xe0, + 0x90e7, 0x74, + 0x90e8, 0xff, + 0x90e9, 0xf0, + 0x90ea, 0x90, + 0x90eb, 0xd2, + 0x90ec, 0x0a, + 0x90ed, 0x02, + 0x90ee, 0x28, + 0x90ef, 0xb4, + 0xc93c, 0x29, + 0xc93d, 0x79, + 0xc93e, 0x80, + 0xc93f, 0xf0, + 0x90f0, 0xf0, + 0x90f1, 0x90, + 0x90f2, 0xd2, + 0x90f3, 0x0e, + 0x90f4, 0x02, + 0x90f5, 0x29, + 0x90f6, 0x7f, + 0xc940, 0x29, + 0xc941, 0x7c, + 0xc942, 0x80, + 0xc943, 0xf7, + 0x90f7, 0x90, + 0x90f8, 0x83, + 0x90f9, 0xba, + 0x90fa, 0xe0, + 0x90fb, 0xff, + 0x90fc, 0x90, + 0x90fd, 0xd2, + 0x90fe, 0x0c, + 0x90ff, 0xe0, + 0x9100, 0xe4, + 0x9101, 0xef, + 0x9102, 0xf0, + 0x9103, 0xa3, + 0x9104, 0xe0, + 0x9105, 0x74, + 0x9106, 0xff, + 0x9107, 0xf0, + 0x9108, 0x90, + 0x9109, 0xd2, + 0x910a, 0x0e, + 0x910b, 0x02, + 0x910c, 0x29, + 0x910d, 0x7f, + 0xc944, 0x2a, + 0xc945, 0x42, + 0xc946, 0x81, + 0xc947, 0x0e, + 0x910e, 0xf0, + 0x910f, 0x90, + 0x9110, 0xd2, + 0x9111, 0x12, + 0x9112, 0x02, + 0x9113, 0x2a, + 0x9114, 0x48, + 0xc948, 0x2a, + 0xc949, 0x45, + 0xc94a, 0x81, + 0xc94b, 0x15, + 0x9115, 0x90, + 0x9116, 0x83, + 0x9117, 0xba, + 0x9118, 0xe0, + 0x9119, 0xff, + 0x911a, 0x90, + 0x911b, 0xd2, + 0x911c, 0x10, + 0x911d, 0xe0, + 0x911e, 0xe4, + 0x911f, 0xef, + 0x9120, 0xf0, + 0x9121, 0xa3, + 0x9122, 0xe0, + 0x9123, 0x74, + 0x9124, 0xff, + 0x9125, 0xf0, + 0x9126, 0x90, + 0x9127, 0xd2, + 0x9128, 0x12, + 0x9129, 0x02, + 0x912a, 0x2a, + 0x912b, 0x48, + 0xc900, 0x01, + 0x0000, 0x00, +}; + +static const u16 vs6624_p2[] = { + 0x806f, 0x01, + 0x058c, 0x01, + 0x0000, 0x00, +}; + +static const u16 vs6624_run_setup[] = { + 0x1d18, 0x00, /* Enableconstrainedwhitebalance */ + VS6624_PEAK_MIN_OUT_G_MSB, 0x3c, /* Damper PeakGain Output MSB */ + VS6624_PEAK_MIN_OUT_G_LSB, 0x66, /* Damper PeakGain Output LSB */ + VS6624_CM_LOW_THR_MSB, 0x65, /* Damper Low MSB */ + VS6624_CM_LOW_THR_LSB, 0xd1, /* Damper Low LSB */ + VS6624_CM_HIGH_THR_MSB, 0x66, /* Damper High MSB */ + VS6624_CM_HIGH_THR_LSB, 0x62, /* Damper High LSB */ + VS6624_CM_MIN_OUT_MSB, 0x00, /* Damper Min output MSB */ + VS6624_CM_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */ + VS6624_NORA_DISABLE, 0x00, /* Nora fDisable */ + VS6624_NORA_USAGE, 0x04, /* Nora usage */ + VS6624_NORA_LOW_THR_MSB, 0x63, /* Damper Low MSB Changed 0x63 to 0x65 */ + VS6624_NORA_LOW_THR_LSB, 0xd1, /* Damper Low LSB */ + VS6624_NORA_HIGH_THR_MSB, 0x68, /* Damper High MSB */ + VS6624_NORA_HIGH_THR_LSB, 0xdd, /* Damper High LSB */ + VS6624_NORA_MIN_OUT_MSB, 0x3a, /* Damper Min output MSB */ + VS6624_NORA_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */ + VS6624_F2B_DISABLE, 0x00, /* Disable */ + 0x1d8a, 0x30, /* MAXWeightHigh */ + 0x1d91, 0x62, /* fpDamperLowThresholdHigh MSB */ + 0x1d92, 0x4a, /* fpDamperLowThresholdHigh LSB */ + 0x1d95, 0x65, /* fpDamperHighThresholdHigh MSB */ + 0x1d96, 0x0e, /* fpDamperHighThresholdHigh LSB */ + 0x1da1, 0x3a, /* fpMinimumDamperOutputLow MSB */ + 0x1da2, 0xb8, /* fpMinimumDamperOutputLow LSB */ + 0x1e08, 0x06, /* MAXWeightLow */ + 0x1e0a, 0x0a, /* MAXWeightHigh */ + 0x1601, 0x3a, /* Red A MSB */ + 0x1602, 0x14, /* Red A LSB */ + 0x1605, 0x3b, /* Blue A MSB */ + 0x1606, 0x85, /* BLue A LSB */ + 0x1609, 0x3b, /* RED B MSB */ + 0x160a, 0x85, /* RED B LSB */ + 0x160d, 0x3a, /* Blue B MSB */ + 0x160e, 0x14, /* Blue B LSB */ + 0x1611, 0x30, /* Max Distance from Locus MSB */ + 0x1612, 0x8f, /* Max Distance from Locus MSB */ + 0x1614, 0x01, /* Enable constrainer */ + 0x0000, 0x00, +}; + +static const u16 vs6624_default[] = { + VS6624_CONTRAST0, 0x84, + VS6624_SATURATION0, 0x75, + VS6624_GAMMA0, 0x11, + VS6624_CONTRAST1, 0x84, + VS6624_SATURATION1, 0x75, + VS6624_GAMMA1, 0x11, + VS6624_MAN_RG, 0x80, + VS6624_MAN_GG, 0x80, + VS6624_MAN_BG, 0x80, + VS6624_WB_MODE, 0x1, + VS6624_EXPO_COMPENSATION, 0xfe, + VS6624_EXPO_METER, 0x0, + VS6624_LIGHT_FREQ, 0x64, + VS6624_PEAK_GAIN, 0xe, + VS6624_PEAK_LOW_THR, 0x28, + VS6624_HMIRROR0, 0x0, + VS6624_VFLIP0, 0x0, + VS6624_ZOOM_HSTEP0_MSB, 0x0, + VS6624_ZOOM_HSTEP0_LSB, 0x1, + VS6624_ZOOM_VSTEP0_MSB, 0x0, + VS6624_ZOOM_VSTEP0_LSB, 0x1, + VS6624_PAN_HSTEP0_MSB, 0x0, + VS6624_PAN_HSTEP0_LSB, 0xf, + VS6624_PAN_VSTEP0_MSB, 0x0, + VS6624_PAN_VSTEP0_LSB, 0xf, + VS6624_SENSOR_MODE, 0x1, + VS6624_SYNC_CODE_SETUP, 0x21, + VS6624_DISABLE_FR_DAMPER, 0x0, + VS6624_FR_DEN, 0x1, + VS6624_FR_NUM_LSB, 0xf, + VS6624_INIT_PIPE_SETUP, 0x0, + VS6624_IMG_FMT0, 0x0, + VS6624_YUV_SETUP, 0x1, + VS6624_IMAGE_SIZE0, 0x2, + 0x0000, 0x00, +}; + +static inline struct vs6624 *to_vs6624(struct v4l2_subdev *sd) +{ + return container_of(sd, struct vs6624, sd); +} +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct vs6624, hdl)->sd; +} + +static int vs6624_read(struct v4l2_subdev *sd, u16 index) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buf[2]; + + buf[0] = index >> 8; + buf[1] = index; + i2c_master_send(client, buf, 2); + i2c_master_recv(client, buf, 1); + + return buf[0]; +} + +static int vs6624_write(struct v4l2_subdev *sd, u16 index, + u8 value) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buf[3]; + + buf[0] = index >> 8; + buf[1] = index; + buf[2] = value; + + return i2c_master_send(client, buf, 3); +} + +static int vs6624_writeregs(struct v4l2_subdev *sd, const u16 *regs) +{ + u16 reg; + u8 data; + + while (*regs != 0x00) { + reg = *regs++; + data = *regs++; + + vs6624_write(sd, reg, data); + } + return 0; +} + +static int vs6624_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + + switch (ctrl->id) { + case V4L2_CID_CONTRAST: + vs6624_write(sd, VS6624_CONTRAST0, ctrl->val); + break; + case V4L2_CID_SATURATION: + vs6624_write(sd, VS6624_SATURATION0, ctrl->val); + break; + case V4L2_CID_HFLIP: + vs6624_write(sd, VS6624_HMIRROR0, ctrl->val); + break; + case V4L2_CID_VFLIP: + vs6624_write(sd, VS6624_VFLIP0, ctrl->val); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int vs6624_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, + enum v4l2_mbus_pixelcode *code) +{ + if (index >= ARRAY_SIZE(vs6624_formats)) + return -EINVAL; + + *code = vs6624_formats[index].mbus_code; + return 0; +} + +static int vs6624_try_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) +{ + int index; + + for (index = 0; index < ARRAY_SIZE(vs6624_formats); index++) + if (vs6624_formats[index].mbus_code == fmt->code) + break; + if (index >= ARRAY_SIZE(vs6624_formats)) { + /* default to first format */ + index = 0; + fmt->code = vs6624_formats[0].mbus_code; + } + + /* sensor mode is VGA */ + if (fmt->width > VGA_WIDTH) + fmt->width = VGA_WIDTH; + if (fmt->height > VGA_HEIGHT) + fmt->height = VGA_HEIGHT; + fmt->width = fmt->width & (~3); + fmt->height = fmt->height & (~3); + fmt->field = V4L2_FIELD_NONE; + fmt->colorspace = vs6624_formats[index].colorspace; + return 0; +} + +static int vs6624_s_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) +{ + struct vs6624 *sensor = to_vs6624(sd); + int ret; + + ret = vs6624_try_mbus_fmt(sd, fmt); + if (ret) + return ret; + + /* set image format */ + switch (fmt->code) { + case V4L2_MBUS_FMT_UYVY8_2X8: + vs6624_write(sd, VS6624_IMG_FMT0, 0x0); + vs6624_write(sd, VS6624_YUV_SETUP, 0x1); + break; + case V4L2_MBUS_FMT_YUYV8_2X8: + vs6624_write(sd, VS6624_IMG_FMT0, 0x0); + vs6624_write(sd, VS6624_YUV_SETUP, 0x3); + break; + case V4L2_MBUS_FMT_RGB565_2X8_LE: + vs6624_write(sd, VS6624_IMG_FMT0, 0x4); + vs6624_write(sd, VS6624_RGB_SETUP, 0x0); + break; + default: + return -EINVAL; + } + + /* set image size */ + if ((fmt->width == VGA_WIDTH) && (fmt->height == VGA_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x2); + else if ((fmt->width == QVGA_WIDTH) && (fmt->height == QVGA_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x4); + else if ((fmt->width == QQVGA_WIDTH) && (fmt->height == QQVGA_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x6); + else if ((fmt->width == CIF_WIDTH) && (fmt->height == CIF_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x3); + else if ((fmt->width == QCIF_WIDTH) && (fmt->height == QCIF_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x5); + else if ((fmt->width == QQCIF_WIDTH) && (fmt->height == QQCIF_HEIGHT)) + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x7); + else { + vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x8); + vs6624_write(sd, VS6624_MAN_HSIZE0_MSB, fmt->width >> 8); + vs6624_write(sd, VS6624_MAN_HSIZE0_LSB, fmt->width & 0xFF); + vs6624_write(sd, VS6624_MAN_VSIZE0_MSB, fmt->height >> 8); + vs6624_write(sd, VS6624_MAN_VSIZE0_LSB, fmt->height & 0xFF); + vs6624_write(sd, VS6624_CROP_CTRL0, 0x1); + } + + sensor->fmt = *fmt; + + return 0; +} + +static int vs6624_g_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) +{ + struct vs6624 *sensor = to_vs6624(sd); + + *fmt = sensor->fmt; + return 0; +} + +static int vs6624_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +{ + struct vs6624 *sensor = to_vs6624(sd); + struct v4l2_captureparm *cp = &parms->parm.capture; + + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + memset(cp, 0, sizeof(*cp)); + cp->capability = V4L2_CAP_TIMEPERFRAME; + cp->timeperframe.numerator = sensor->frame_rate.denominator; + cp->timeperframe.denominator = sensor->frame_rate.numerator; + return 0; +} + +static int vs6624_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +{ + struct vs6624 *sensor = to_vs6624(sd); + struct v4l2_captureparm *cp = &parms->parm.capture; + struct v4l2_fract *tpf = &cp->timeperframe; + + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (cp->extendedmode != 0) + return -EINVAL; + + if (tpf->numerator == 0 || tpf->denominator == 0 + || (tpf->denominator > tpf->numerator * MAX_FRAME_RATE)) { + /* reset to max frame rate */ + tpf->numerator = 1; + tpf->denominator = MAX_FRAME_RATE; + } + sensor->frame_rate.numerator = tpf->denominator; + sensor->frame_rate.denominator = tpf->numerator; + vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0); + vs6624_write(sd, VS6624_FR_NUM_MSB, + sensor->frame_rate.numerator >> 8); + vs6624_write(sd, VS6624_FR_NUM_LSB, + sensor->frame_rate.numerator & 0xFF); + vs6624_write(sd, VS6624_FR_DEN, + sensor->frame_rate.denominator & 0xFF); + return 0; +} + +static int vs6624_s_stream(struct v4l2_subdev *sd, int enable) +{ + if (enable) + vs6624_write(sd, VS6624_USER_CMD, 0x2); + else + vs6624_write(sd, VS6624_USER_CMD, 0x4); + udelay(100); + return 0; +} + +static int vs6624_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) +{ + int rev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + + rev = (vs6624_read(sd, VS6624_FW_VSN_MAJOR) << 8) + | vs6624_read(sd, VS6624_FW_VSN_MINOR); + + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VS6624, rev); +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int vs6624_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + reg->val = vs6624_read(sd, reg->reg & 0xffff); + reg->size = 1; + return 0; +} + +static int vs6624_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + vs6624_write(sd, reg->reg & 0xffff, reg->val & 0xff); + return 0; +} +#endif + +static const struct v4l2_ctrl_ops vs6624_ctrl_ops = { + .s_ctrl = vs6624_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops vs6624_core_ops = { + .g_chip_ident = vs6624_g_chip_ident, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = vs6624_g_register, + .s_register = vs6624_s_register, +#endif +}; + +static const struct v4l2_subdev_video_ops vs6624_video_ops = { + .enum_mbus_fmt = vs6624_enum_mbus_fmt, + .try_mbus_fmt = vs6624_try_mbus_fmt, + .s_mbus_fmt = vs6624_s_mbus_fmt, + .g_mbus_fmt = vs6624_g_mbus_fmt, + .s_parm = vs6624_s_parm, + .g_parm = vs6624_g_parm, + .s_stream = vs6624_s_stream, +}; + +static const struct v4l2_subdev_ops vs6624_ops = { + .core = &vs6624_core_ops, + .video = &vs6624_video_ops, +}; + +static int __devinit vs6624_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct vs6624 *sensor; + struct v4l2_subdev *sd; + struct v4l2_ctrl_handler *hdl; + const unsigned *ce; + int ret; + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -EIO; + + ce = client->dev.platform_data; + if (ce == NULL) + return -EINVAL; + + ret = gpio_request(*ce, "VS6624 Chip Enable"); + if (ret) { + v4l_err(client, "failed to request GPIO %d\n", *ce); + return ret; + } + gpio_direction_output(*ce, 1); + /* wait 100ms before any further i2c writes are performed */ + mdelay(100); + + sensor = kzalloc(sizeof(*sensor), GFP_KERNEL); + if (sensor == NULL) { + gpio_free(*ce); + return -ENOMEM; + } + + sd = &sensor->sd; + v4l2_i2c_subdev_init(sd, client, &vs6624_ops); + + vs6624_writeregs(sd, vs6624_p1); + vs6624_write(sd, VS6624_MICRO_EN, 0x2); + vs6624_write(sd, VS6624_DIO_EN, 0x1); + mdelay(10); + vs6624_writeregs(sd, vs6624_p2); + + vs6624_writeregs(sd, vs6624_default); + vs6624_write(sd, VS6624_HSYNC_SETUP, 0xF); + vs6624_writeregs(sd, vs6624_run_setup); + + /* set frame rate */ + sensor->frame_rate.numerator = MAX_FRAME_RATE; + sensor->frame_rate.denominator = 1; + vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0); + vs6624_write(sd, VS6624_FR_NUM_MSB, + sensor->frame_rate.numerator >> 8); + vs6624_write(sd, VS6624_FR_NUM_LSB, + sensor->frame_rate.numerator & 0xFF); + vs6624_write(sd, VS6624_FR_DEN, + sensor->frame_rate.denominator & 0xFF); + + sensor->fmt = vs6624_default_fmt; + sensor->ce_pin = *ce; + + v4l_info(client, "chip found @ 0x%02x (%s)\n", + client->addr << 1, client->adapter->name); + + hdl = &sensor->hdl; + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, + V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x87); + v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, + V4L2_CID_SATURATION, 0, 0xFF, 1, 0x78); + v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + /* hook the control handler into the driver */ + sd->ctrl_handler = hdl; + if (hdl->error) { + int err = hdl->error; + + v4l2_ctrl_handler_free(hdl); + kfree(sensor); + gpio_free(*ce); + return err; + } + + /* initialize the hardware to the default control values */ + ret = v4l2_ctrl_handler_setup(hdl); + if (ret) { + v4l2_ctrl_handler_free(hdl); + kfree(sensor); + gpio_free(*ce); + } + return ret; +} + +static int __devexit vs6624_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct vs6624 *sensor = to_vs6624(sd); + + v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(sd->ctrl_handler); + gpio_free(sensor->ce_pin); + kfree(sensor); + return 0; +} + +static const struct i2c_device_id vs6624_id[] = { + {"vs6624", 0}, + {}, +}; + +MODULE_DEVICE_TABLE(i2c, vs6624_id); + +static struct i2c_driver vs6624_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "vs6624", + }, + .probe = vs6624_probe, + .remove = __devexit_p(vs6624_remove), + .id_table = vs6624_id, +}; + +static __init int vs6624_init(void) +{ + return i2c_add_driver(&vs6624_driver); +} + +static __exit void vs6624_exit(void) +{ + i2c_del_driver(&vs6624_driver); +} + +module_init(vs6624_init); +module_exit(vs6624_exit); + +MODULE_DESCRIPTION("VS6624 sensor driver"); +MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); +MODULE_LICENSE("GPL v2"); |