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Diffstat (limited to 'drivers/staging/media/omap24xx/tcm825x.c')
-rw-r--r--drivers/staging/media/omap24xx/tcm825x.c938
1 files changed, 0 insertions, 938 deletions
diff --git a/drivers/staging/media/omap24xx/tcm825x.c b/drivers/staging/media/omap24xx/tcm825x.c
deleted file mode 100644
index 9d9ecf1fc4ae..000000000000
--- a/drivers/staging/media/omap24xx/tcm825x.c
+++ /dev/null
@@ -1,938 +0,0 @@
-/*
- * drivers/media/i2c/tcm825x.c
- *
- * TCM825X camera sensor driver.
- *
- * Copyright (C) 2007 Nokia Corporation.
- *
- * Contact: Sakari Ailus <sakari.ailus@nokia.com>
- *
- * Based on code from David Cohen <david.cohen@indt.org.br>
- *
- * This driver was based on ov9640 sensor driver from MontaVista
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include "v4l2-int-device.h"
-
-#include "tcm825x.h"
-
-/*
- * The sensor has two fps modes: the lower one just gives half the fps
- * at the same xclk than the high one.
- */
-#define MAX_FPS 30
-#define MIN_FPS 8
-#define MAX_HALF_FPS (MAX_FPS / 2)
-#define HIGH_FPS_MODE_LOWER_LIMIT 14
-#define DEFAULT_FPS MAX_HALF_FPS
-
-struct tcm825x_sensor {
- const struct tcm825x_platform_data *platform_data;
- struct v4l2_int_device *v4l2_int_device;
- struct i2c_client *i2c_client;
- struct v4l2_pix_format pix;
- struct v4l2_fract timeperframe;
-};
-
-/* list of image formats supported by TCM825X sensor */
-static const struct v4l2_fmtdesc tcm825x_formats[] = {
- {
- .description = "YUYV (YUV 4:2:2), packed",
- .pixelformat = V4L2_PIX_FMT_UYVY,
- }, {
- /* Note: V4L2 defines RGB565 as:
- *
- * Byte 0 Byte 1
- * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
- *
- * We interpret RGB565 as:
- *
- * Byte 0 Byte 1
- * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
- */
- .description = "RGB565, le",
- .pixelformat = V4L2_PIX_FMT_RGB565,
- },
-};
-
-#define TCM825X_NUM_CAPTURE_FORMATS ARRAY_SIZE(tcm825x_formats)
-
-/*
- * TCM825X register configuration for all combinations of pixel format and
- * image size
- */
-static const struct tcm825x_reg subqcif = { 0x20, TCM825X_PICSIZ };
-static const struct tcm825x_reg qcif = { 0x18, TCM825X_PICSIZ };
-static const struct tcm825x_reg cif = { 0x14, TCM825X_PICSIZ };
-static const struct tcm825x_reg qqvga = { 0x0c, TCM825X_PICSIZ };
-static const struct tcm825x_reg qvga = { 0x04, TCM825X_PICSIZ };
-static const struct tcm825x_reg vga = { 0x00, TCM825X_PICSIZ };
-
-static const struct tcm825x_reg yuv422 = { 0x00, TCM825X_PICFMT };
-static const struct tcm825x_reg rgb565 = { 0x02, TCM825X_PICFMT };
-
-/* Our own specific controls */
-#define V4L2_CID_ALC V4L2_CID_PRIVATE_BASE
-#define V4L2_CID_H_EDGE_EN (V4L2_CID_PRIVATE_BASE + 1)
-#define V4L2_CID_V_EDGE_EN (V4L2_CID_PRIVATE_BASE + 2)
-#define V4L2_CID_LENS (V4L2_CID_PRIVATE_BASE + 3)
-#define V4L2_CID_MAX_EXPOSURE_TIME (V4L2_CID_PRIVATE_BASE + 4)
-#define V4L2_CID_LAST_PRIV V4L2_CID_MAX_EXPOSURE_TIME
-
-/* Video controls */
-static struct vcontrol {
- struct v4l2_queryctrl qc;
- u16 reg;
- u16 start_bit;
-} video_control[] = {
- {
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 63,
- .step = 1,
- },
- .reg = TCM825X_AG,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_RED_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Red Balance",
- .minimum = 0,
- .maximum = 255,
- .step = 1,
- },
- .reg = TCM825X_MRG,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_BLUE_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Blue Balance",
- .minimum = 0,
- .maximum = 255,
- .step = 1,
- },
- .reg = TCM825X_MBG,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto White Balance",
- .minimum = 0,
- .maximum = 1,
- .step = 0,
- },
- .reg = TCM825X_AWBSW,
- .start_bit = 7,
- },
- {
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure Time",
- .minimum = 0,
- .maximum = 0x1fff,
- .step = 1,
- },
- .reg = TCM825X_ESRSPD_U,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Mirror Image",
- .minimum = 0,
- .maximum = 1,
- .step = 0,
- },
- .reg = TCM825X_H_INV,
- .start_bit = 6,
- },
- {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Vertical Flip",
- .minimum = 0,
- .maximum = 1,
- .step = 0,
- },
- .reg = TCM825X_V_INV,
- .start_bit = 7,
- },
- /* Private controls */
- {
- {
- .id = V4L2_CID_ALC,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto Luminance Control",
- .minimum = 0,
- .maximum = 1,
- .step = 0,
- },
- .reg = TCM825X_ALCSW,
- .start_bit = 7,
- },
- {
- {
- .id = V4L2_CID_H_EDGE_EN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Horizontal Edge Enhancement",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- },
- .reg = TCM825X_HDTG,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_V_EDGE_EN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Vertical Edge Enhancement",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- },
- .reg = TCM825X_VDTG,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_LENS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Lens Shading Compensation",
- .minimum = 0,
- .maximum = 0x3f,
- .step = 1,
- },
- .reg = TCM825X_LENS,
- .start_bit = 0,
- },
- {
- {
- .id = V4L2_CID_MAX_EXPOSURE_TIME,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Maximum Exposure Time",
- .minimum = 0,
- .maximum = 0x3,
- .step = 1,
- },
- .reg = TCM825X_ESRLIM,
- .start_bit = 5,
- },
-};
-
-
-static const struct tcm825x_reg *tcm825x_siz_reg[NUM_IMAGE_SIZES] = {
- &subqcif, &qqvga, &qcif, &qvga, &cif, &vga };
-
-static const struct tcm825x_reg *tcm825x_fmt_reg[NUM_PIXEL_FORMATS] = {
- &yuv422, &rgb565 };
-
-/*
- * Read a value from a register in an TCM825X sensor device. The value is
- * returned in 'val'.
- * Returns zero if successful, or non-zero otherwise.
- */
-static int tcm825x_read_reg(struct i2c_client *client, int reg)
-{
- int err;
- struct i2c_msg msg[2];
- u8 reg_buf, data_buf = 0;
-
- if (!client->adapter)
- return -ENODEV;
-
- msg[0].addr = client->addr;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = &reg_buf;
- msg[1].addr = client->addr;
- msg[1].flags = I2C_M_RD;
- msg[1].len = 1;
- msg[1].buf = &data_buf;
-
- reg_buf = reg;
-
- err = i2c_transfer(client->adapter, msg, 2);
- if (err < 0)
- return err;
- return data_buf;
-}
-
-/*
- * Write a value to a register in an TCM825X sensor device.
- * Returns zero if successful, or non-zero otherwise.
- */
-static int tcm825x_write_reg(struct i2c_client *client, u8 reg, u8 val)
-{
- int err;
- struct i2c_msg msg[1];
- unsigned char data[2];
-
- if (!client->adapter)
- return -ENODEV;
-
- msg->addr = client->addr;
- msg->flags = 0;
- msg->len = 2;
- msg->buf = data;
- data[0] = reg;
- data[1] = val;
- err = i2c_transfer(client->adapter, msg, 1);
- if (err >= 0)
- return 0;
- return err;
-}
-
-static int __tcm825x_write_reg_mask(struct i2c_client *client,
- u8 reg, u8 val, u8 mask)
-{
- int rc;
-
- /* need to do read - modify - write */
- rc = tcm825x_read_reg(client, reg);
- if (rc < 0)
- return rc;
-
- rc &= (~mask); /* Clear the masked bits */
- val &= mask; /* Enforce mask on value */
- val |= rc;
-
- /* write the new value to the register */
- rc = tcm825x_write_reg(client, reg, val);
- if (rc)
- return rc;
-
- return 0;
-}
-
-#define tcm825x_write_reg_mask(client, regmask, val) \
- __tcm825x_write_reg_mask(client, TCM825X_ADDR((regmask)), val, \
- TCM825X_MASK((regmask)))
-
-
-/*
- * Initialize a list of TCM825X registers.
- * The list of registers is terminated by the pair of values
- * { TCM825X_REG_TERM, TCM825X_VAL_TERM }.
- * Returns zero if successful, or non-zero otherwise.
- */
-static int tcm825x_write_default_regs(struct i2c_client *client,
- const struct tcm825x_reg *reglist)
-{
- int err;
- const struct tcm825x_reg *next = reglist;
-
- while (!((next->reg == TCM825X_REG_TERM)
- && (next->val == TCM825X_VAL_TERM))) {
- err = tcm825x_write_reg(client, next->reg, next->val);
- if (err) {
- dev_err(&client->dev, "register writing failed\n");
- return err;
- }
- next++;
- }
-
- return 0;
-}
-
-static struct vcontrol *find_vctrl(int id)
-{
- int i;
-
- if (id < V4L2_CID_BASE)
- return NULL;
-
- for (i = 0; i < ARRAY_SIZE(video_control); i++)
- if (video_control[i].qc.id == id)
- return &video_control[i];
-
- return NULL;
-}
-
-/*
- * Find the best match for a requested image capture size. The best match
- * is chosen as the nearest match that has the same number or fewer pixels
- * as the requested size, or the smallest image size if the requested size
- * has fewer pixels than the smallest image.
- */
-static enum image_size tcm825x_find_size(struct v4l2_int_device *s,
- unsigned int width,
- unsigned int height)
-{
- enum image_size isize;
- unsigned long pixels = width * height;
- struct tcm825x_sensor *sensor = s->priv;
-
- for (isize = subQCIF; isize < VGA; isize++) {
- if (tcm825x_sizes[isize + 1].height
- * tcm825x_sizes[isize + 1].width > pixels) {
- dev_dbg(&sensor->i2c_client->dev, "size %d\n", isize);
-
- return isize;
- }
- }
-
- dev_dbg(&sensor->i2c_client->dev, "format default VGA\n");
-
- return VGA;
-}
-
-/*
- * Configure the TCM825X for current image size, pixel format, and
- * frame period. fper is the frame period (in seconds) expressed as a
- * fraction. Returns zero if successful, or non-zero otherwise. The
- * actual frame period is returned in fper.
- */
-static int tcm825x_configure(struct v4l2_int_device *s)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct v4l2_pix_format *pix = &sensor->pix;
- enum image_size isize = tcm825x_find_size(s, pix->width, pix->height);
- struct v4l2_fract *fper = &sensor->timeperframe;
- enum pixel_format pfmt;
- int err;
- u32 tgt_fps;
- u8 val;
-
- /* common register initialization */
- err = tcm825x_write_default_regs(
- sensor->i2c_client, sensor->platform_data->default_regs());
- if (err)
- return err;
-
- /* configure image size */
- val = tcm825x_siz_reg[isize]->val;
- dev_dbg(&sensor->i2c_client->dev,
- "configuring image size %d\n", isize);
- err = tcm825x_write_reg_mask(sensor->i2c_client,
- tcm825x_siz_reg[isize]->reg, val);
- if (err)
- return err;
-
- /* configure pixel format */
- switch (pix->pixelformat) {
- default:
- case V4L2_PIX_FMT_RGB565:
- pfmt = RGB565;
- break;
- case V4L2_PIX_FMT_UYVY:
- pfmt = YUV422;
- break;
- }
-
- dev_dbg(&sensor->i2c_client->dev,
- "configuring pixel format %d\n", pfmt);
- val = tcm825x_fmt_reg[pfmt]->val;
-
- err = tcm825x_write_reg_mask(sensor->i2c_client,
- tcm825x_fmt_reg[pfmt]->reg, val);
- if (err)
- return err;
-
- /*
- * For frame rate < 15, the FPS reg (addr 0x02, bit 7) must be
- * set. Frame rate will be halved from the normal.
- */
- tgt_fps = fper->denominator / fper->numerator;
- if (tgt_fps <= HIGH_FPS_MODE_LOWER_LIMIT) {
- val = tcm825x_read_reg(sensor->i2c_client, 0x02);
- val |= 0x80;
- tcm825x_write_reg(sensor->i2c_client, 0x02, val);
- }
-
- return 0;
-}
-
-static int ioctl_queryctrl(struct v4l2_int_device *s,
- struct v4l2_queryctrl *qc)
-{
- struct vcontrol *control;
-
- control = find_vctrl(qc->id);
-
- if (control == NULL)
- return -EINVAL;
-
- *qc = control->qc;
-
- return 0;
-}
-
-static int ioctl_g_ctrl(struct v4l2_int_device *s,
- struct v4l2_control *vc)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct i2c_client *client = sensor->i2c_client;
- int val, r;
- struct vcontrol *lvc;
-
- /* exposure time is special, spread across 2 registers */
- if (vc->id == V4L2_CID_EXPOSURE) {
- int val_lower, val_upper;
-
- val_upper = tcm825x_read_reg(client,
- TCM825X_ADDR(TCM825X_ESRSPD_U));
- if (val_upper < 0)
- return val_upper;
- val_lower = tcm825x_read_reg(client,
- TCM825X_ADDR(TCM825X_ESRSPD_L));
- if (val_lower < 0)
- return val_lower;
-
- vc->value = ((val_upper & 0x1f) << 8) | (val_lower);
- return 0;
- }
-
- lvc = find_vctrl(vc->id);
- if (lvc == NULL)
- return -EINVAL;
-
- r = tcm825x_read_reg(client, TCM825X_ADDR(lvc->reg));
- if (r < 0)
- return r;
- val = r & TCM825X_MASK(lvc->reg);
- val >>= lvc->start_bit;
-
- if (val < 0)
- return val;
-
- if (vc->id == V4L2_CID_HFLIP || vc->id == V4L2_CID_VFLIP)
- val ^= sensor->platform_data->is_upside_down();
-
- vc->value = val;
- return 0;
-}
-
-static int ioctl_s_ctrl(struct v4l2_int_device *s,
- struct v4l2_control *vc)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct i2c_client *client = sensor->i2c_client;
- struct vcontrol *lvc;
- int val = vc->value;
-
- /* exposure time is special, spread across 2 registers */
- if (vc->id == V4L2_CID_EXPOSURE) {
- int val_lower, val_upper;
-
- val_lower = val & TCM825X_MASK(TCM825X_ESRSPD_L);
- val_upper = (val >> 8) & TCM825X_MASK(TCM825X_ESRSPD_U);
-
- if (tcm825x_write_reg_mask(client,
- TCM825X_ESRSPD_U, val_upper))
- return -EIO;
-
- if (tcm825x_write_reg_mask(client,
- TCM825X_ESRSPD_L, val_lower))
- return -EIO;
-
- return 0;
- }
-
- lvc = find_vctrl(vc->id);
- if (lvc == NULL)
- return -EINVAL;
-
- if (vc->id == V4L2_CID_HFLIP || vc->id == V4L2_CID_VFLIP)
- val ^= sensor->platform_data->is_upside_down();
-
- val = val << lvc->start_bit;
- if (tcm825x_write_reg_mask(client, lvc->reg, val))
- return -EIO;
-
- return 0;
-}
-
-static int ioctl_enum_fmt_cap(struct v4l2_int_device *s,
- struct v4l2_fmtdesc *fmt)
-{
- int index = fmt->index;
-
- switch (fmt->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (index >= TCM825X_NUM_CAPTURE_FORMATS)
- return -EINVAL;
- break;
-
- default:
- return -EINVAL;
- }
-
- fmt->flags = tcm825x_formats[index].flags;
- strlcpy(fmt->description, tcm825x_formats[index].description,
- sizeof(fmt->description));
- fmt->pixelformat = tcm825x_formats[index].pixelformat;
-
- return 0;
-}
-
-static int ioctl_try_fmt_cap(struct v4l2_int_device *s,
- struct v4l2_format *f)
-{
- struct tcm825x_sensor *sensor = s->priv;
- enum image_size isize;
- int ifmt;
- struct v4l2_pix_format *pix = &f->fmt.pix;
-
- isize = tcm825x_find_size(s, pix->width, pix->height);
- dev_dbg(&sensor->i2c_client->dev, "isize = %d num_capture = %lu\n",
- isize, (unsigned long)TCM825X_NUM_CAPTURE_FORMATS);
-
- pix->width = tcm825x_sizes[isize].width;
- pix->height = tcm825x_sizes[isize].height;
-
- for (ifmt = 0; ifmt < TCM825X_NUM_CAPTURE_FORMATS; ifmt++)
- if (pix->pixelformat == tcm825x_formats[ifmt].pixelformat)
- break;
-
- if (ifmt == TCM825X_NUM_CAPTURE_FORMATS)
- ifmt = 0; /* Default = YUV 4:2:2 */
-
- pix->pixelformat = tcm825x_formats[ifmt].pixelformat;
- pix->field = V4L2_FIELD_NONE;
- pix->bytesperline = pix->width * TCM825X_BYTES_PER_PIXEL;
- pix->sizeimage = pix->bytesperline * pix->height;
- pix->priv = 0;
- dev_dbg(&sensor->i2c_client->dev, "format = 0x%08x\n",
- pix->pixelformat);
-
- switch (pix->pixelformat) {
- case V4L2_PIX_FMT_UYVY:
- default:
- pix->colorspace = V4L2_COLORSPACE_JPEG;
- break;
- case V4L2_PIX_FMT_RGB565:
- pix->colorspace = V4L2_COLORSPACE_SRGB;
- break;
- }
-
- return 0;
-}
-
-static int ioctl_s_fmt_cap(struct v4l2_int_device *s,
- struct v4l2_format *f)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct v4l2_pix_format *pix = &f->fmt.pix;
- int rval;
-
- rval = ioctl_try_fmt_cap(s, f);
- if (rval)
- return rval;
-
- rval = tcm825x_configure(s);
-
- sensor->pix = *pix;
-
- return rval;
-}
-
-static int ioctl_g_fmt_cap(struct v4l2_int_device *s,
- struct v4l2_format *f)
-{
- struct tcm825x_sensor *sensor = s->priv;
-
- f->fmt.pix = sensor->pix;
-
- return 0;
-}
-
-static int ioctl_g_parm(struct v4l2_int_device *s,
- struct v4l2_streamparm *a)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct v4l2_captureparm *cparm = &a->parm.capture;
-
- if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- memset(a, 0, sizeof(*a));
- a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- cparm->capability = V4L2_CAP_TIMEPERFRAME;
- cparm->timeperframe = sensor->timeperframe;
-
- return 0;
-}
-
-static int ioctl_s_parm(struct v4l2_int_device *s,
- struct v4l2_streamparm *a)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct v4l2_fract *timeperframe = &a->parm.capture.timeperframe;
- u32 tgt_fps; /* target frames per secound */
- int rval;
-
- if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- if ((timeperframe->numerator == 0)
- || (timeperframe->denominator == 0)) {
- timeperframe->denominator = DEFAULT_FPS;
- timeperframe->numerator = 1;
- }
-
- tgt_fps = timeperframe->denominator / timeperframe->numerator;
-
- if (tgt_fps > MAX_FPS) {
- timeperframe->denominator = MAX_FPS;
- timeperframe->numerator = 1;
- } else if (tgt_fps < MIN_FPS) {
- timeperframe->denominator = MIN_FPS;
- timeperframe->numerator = 1;
- }
-
- sensor->timeperframe = *timeperframe;
-
- rval = tcm825x_configure(s);
-
- return rval;
-}
-
-static int ioctl_s_power(struct v4l2_int_device *s, int on)
-{
- struct tcm825x_sensor *sensor = s->priv;
-
- return sensor->platform_data->power_set(on);
-}
-
-/*
- * Given the image capture format in pix, the nominal frame period in
- * timeperframe, calculate the required xclk frequency.
- *
- * TCM825X input frequency characteristics are:
- * Minimum 11.9 MHz, Typical 24.57 MHz and maximum 25/27 MHz
- */
-
-static int ioctl_g_ifparm(struct v4l2_int_device *s, struct v4l2_ifparm *p)
-{
- struct tcm825x_sensor *sensor = s->priv;
- struct v4l2_fract *timeperframe = &sensor->timeperframe;
- u32 tgt_xclk; /* target xclk */
- u32 tgt_fps; /* target frames per secound */
- int rval;
-
- rval = sensor->platform_data->ifparm(p);
- if (rval)
- return rval;
-
- tgt_fps = timeperframe->denominator / timeperframe->numerator;
-
- tgt_xclk = (tgt_fps <= HIGH_FPS_MODE_LOWER_LIMIT) ?
- (2457 * tgt_fps) / MAX_HALF_FPS :
- (2457 * tgt_fps) / MAX_FPS;
- tgt_xclk *= 10000;
-
- tgt_xclk = min(tgt_xclk, (u32)TCM825X_XCLK_MAX);
- tgt_xclk = max(tgt_xclk, (u32)TCM825X_XCLK_MIN);
-
- p->u.bt656.clock_curr = tgt_xclk;
-
- return 0;
-}
-
-static int ioctl_g_needs_reset(struct v4l2_int_device *s, void *buf)
-{
- struct tcm825x_sensor *sensor = s->priv;
-
- return sensor->platform_data->needs_reset(s, buf, &sensor->pix);
-}
-
-static int ioctl_reset(struct v4l2_int_device *s)
-{
- return -EBUSY;
-}
-
-static int ioctl_init(struct v4l2_int_device *s)
-{
- return tcm825x_configure(s);
-}
-
-static int ioctl_dev_exit(struct v4l2_int_device *s)
-{
- return 0;
-}
-
-static int ioctl_dev_init(struct v4l2_int_device *s)
-{
- struct tcm825x_sensor *sensor = s->priv;
- int r;
-
- r = tcm825x_read_reg(sensor->i2c_client, 0x01);
- if (r < 0)
- return r;
- if (r == 0) {
- dev_err(&sensor->i2c_client->dev, "device not detected\n");
- return -EIO;
- }
- return 0;
-}
-
-static struct v4l2_int_ioctl_desc tcm825x_ioctl_desc[] = {
- { vidioc_int_dev_init_num,
- (v4l2_int_ioctl_func *)ioctl_dev_init },
- { vidioc_int_dev_exit_num,
- (v4l2_int_ioctl_func *)ioctl_dev_exit },
- { vidioc_int_s_power_num,
- (v4l2_int_ioctl_func *)ioctl_s_power },
- { vidioc_int_g_ifparm_num,
- (v4l2_int_ioctl_func *)ioctl_g_ifparm },
- { vidioc_int_g_needs_reset_num,
- (v4l2_int_ioctl_func *)ioctl_g_needs_reset },
- { vidioc_int_reset_num,
- (v4l2_int_ioctl_func *)ioctl_reset },
- { vidioc_int_init_num,
- (v4l2_int_ioctl_func *)ioctl_init },
- { vidioc_int_enum_fmt_cap_num,
- (v4l2_int_ioctl_func *)ioctl_enum_fmt_cap },
- { vidioc_int_try_fmt_cap_num,
- (v4l2_int_ioctl_func *)ioctl_try_fmt_cap },
- { vidioc_int_g_fmt_cap_num,
- (v4l2_int_ioctl_func *)ioctl_g_fmt_cap },
- { vidioc_int_s_fmt_cap_num,
- (v4l2_int_ioctl_func *)ioctl_s_fmt_cap },
- { vidioc_int_g_parm_num,
- (v4l2_int_ioctl_func *)ioctl_g_parm },
- { vidioc_int_s_parm_num,
- (v4l2_int_ioctl_func *)ioctl_s_parm },
- { vidioc_int_queryctrl_num,
- (v4l2_int_ioctl_func *)ioctl_queryctrl },
- { vidioc_int_g_ctrl_num,
- (v4l2_int_ioctl_func *)ioctl_g_ctrl },
- { vidioc_int_s_ctrl_num,
- (v4l2_int_ioctl_func *)ioctl_s_ctrl },
-};
-
-static struct v4l2_int_slave tcm825x_slave = {
- .ioctls = tcm825x_ioctl_desc,
- .num_ioctls = ARRAY_SIZE(tcm825x_ioctl_desc),
-};
-
-static struct tcm825x_sensor tcm825x;
-
-static struct v4l2_int_device tcm825x_int_device = {
- .module = THIS_MODULE,
- .name = TCM825X_NAME,
- .priv = &tcm825x,
- .type = v4l2_int_type_slave,
- .u = {
- .slave = &tcm825x_slave,
- },
-};
-
-static int tcm825x_probe(struct i2c_client *client,
- const struct i2c_device_id *did)
-{
- struct tcm825x_sensor *sensor = &tcm825x;
-
- if (i2c_get_clientdata(client))
- return -EBUSY;
-
- sensor->platform_data = client->dev.platform_data;
-
- if (sensor->platform_data == NULL
- || !sensor->platform_data->is_okay())
- return -ENODEV;
-
- sensor->v4l2_int_device = &tcm825x_int_device;
-
- sensor->i2c_client = client;
- i2c_set_clientdata(client, sensor);
-
- /* Make the default capture format QVGA RGB565 */
- sensor->pix.width = tcm825x_sizes[QVGA].width;
- sensor->pix.height = tcm825x_sizes[QVGA].height;
- sensor->pix.pixelformat = V4L2_PIX_FMT_RGB565;
-
- return v4l2_int_device_register(sensor->v4l2_int_device);
-}
-
-static int tcm825x_remove(struct i2c_client *client)
-{
- struct tcm825x_sensor *sensor = i2c_get_clientdata(client);
-
- if (!client->adapter)
- return -ENODEV; /* our client isn't attached */
-
- v4l2_int_device_unregister(sensor->v4l2_int_device);
-
- return 0;
-}
-
-static const struct i2c_device_id tcm825x_id[] = {
- { "tcm825x", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tcm825x_id);
-
-static struct i2c_driver tcm825x_i2c_driver = {
- .driver = {
- .name = TCM825X_NAME,
- },
- .probe = tcm825x_probe,
- .remove = tcm825x_remove,
- .id_table = tcm825x_id,
-};
-
-static struct tcm825x_sensor tcm825x = {
- .timeperframe = {
- .numerator = 1,
- .denominator = DEFAULT_FPS,
- },
-};
-
-static int __init tcm825x_init(void)
-{
- int rval;
-
- rval = i2c_add_driver(&tcm825x_i2c_driver);
- if (rval)
- pr_info("%s: failed registering " TCM825X_NAME "\n",
- __func__);
-
- return rval;
-}
-
-static void __exit tcm825x_exit(void)
-{
- i2c_del_driver(&tcm825x_i2c_driver);
-}
-
-/*
- * FIXME: Menelaus isn't ready (?) at module_init stage, so use
- * late_initcall for now.
- */
-late_initcall(tcm825x_init);
-module_exit(tcm825x_exit);
-
-MODULE_AUTHOR("Sakari Ailus <sakari.ailus@nokia.com>");
-MODULE_DESCRIPTION("TCM825x camera sensor driver");
-MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.