#endif
module_param_array(pardev, charp, NULL, 0);
MODULE_PARM_DESC(pardev, "pardev: where to search for\n"
- "\teach camera. 'aggressive' means brute-force search.\n"
- "\tEg: >pardev=parport3,aggressive,parport2,parport1< would assign\n"
- "\tcam 1 to parport3 and search every parport for cam 2 etc...");
+ "\teach camera. 'aggressive' means brute-force search.\n"
+ "\tEg: >pardev=parport3,aggressive,parport2,parport1< would assign\n"
+ "\tcam 1 to parport3 and search every parport for cam 2 etc...");
static int parmode;
module_param(parmode, int, 0);
/* Set camera phase flags, so we know what to uninit when terminating */
-static inline void w9966_setState(struct w9966_dev *cam, int mask, int val)
+static inline void w9966_set_state(struct w9966_dev *cam, int mask, int val)
{
cam->dev_state = (cam->dev_state & ~mask) ^ val;
}
/* Get camera phase flags */
-static inline int w9966_getState(struct w9966_dev *cam, int mask, int val)
+static inline int w9966_get_state(struct w9966_dev *cam, int mask, int val)
{
return ((cam->dev_state & mask) == val);
}
/* Claim parport for ourself */
static void w9966_pdev_claim(struct w9966_dev *cam)
{
- if (w9966_getState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED))
+ if (w9966_get_state(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED))
return;
parport_claim_or_block(cam->pdev);
- w9966_setState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED);
+ w9966_set_state(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED);
}
/* Release parport for others to use */
static void w9966_pdev_release(struct w9966_dev *cam)
{
- if (w9966_getState(cam, W9966_STATE_CLAIMED, 0))
+ if (w9966_get_state(cam, W9966_STATE_CLAIMED, 0))
return;
parport_release(cam->pdev);
- w9966_setState(cam, W9966_STATE_CLAIMED, 0);
+ w9966_set_state(cam, W9966_STATE_CLAIMED, 0);
}
/* Read register from W9966 interface-chip
Expects a claimed pdev
-1 on error, else register data (byte) */
-static int w9966_rReg(struct w9966_dev *cam, int reg)
+static int w9966_read_reg(struct w9966_dev *cam, int reg)
{
/* ECP, read, regtransfer, REG, REG, REG, REG, REG */
const unsigned char addr = 0x80 | (reg & 0x1f);
/* Write register to W9966 interface-chip
Expects a claimed pdev
-1 on error */
-static int w9966_wReg(struct w9966_dev *cam, int reg, int data)
+static int w9966_write_reg(struct w9966_dev *cam, int reg, int data)
{
/* ECP, write, regtransfer, REG, REG, REG, REG, REG */
const unsigned char addr = 0xc0 | (reg & 0x1f);
else
cam->i2c_state &= ~W9966_I2C_W_DATA;
- w9966_wReg(cam, 0x18, cam->i2c_state);
+ w9966_write_reg(cam, 0x18, cam->i2c_state);
udelay(5);
}
Expects a claimed pdev. */
static int w9966_i2c_getscl(struct w9966_dev *cam)
{
- const unsigned char state = w9966_rReg(cam, 0x18);
+ const unsigned char state = w9966_read_reg(cam, 0x18);
return ((state & W9966_I2C_R_CLOCK) > 0);
}
else
cam->i2c_state &= ~W9966_I2C_W_CLOCK;
- w9966_wReg(cam, 0x18, cam->i2c_state);
+ w9966_write_reg(cam, 0x18, cam->i2c_state);
udelay(5);
/* we go to high, we also expect the peripheral to ack. */
Expects a claimed pdev. */
static int w9966_i2c_getsda(struct w9966_dev *cam)
{
- const unsigned char state = w9966_rReg(cam, 0x18);
+ const unsigned char state = w9966_read_reg(cam, 0x18);
return ((state & W9966_I2C_R_DATA) > 0);
}
#endif
/* Read a register from the i2c device.
Expects claimed pdev. -1 on error */
#if 0
-static int w9966_rReg_i2c(struct w9966_dev *cam, int reg)
+static int w9966_read_reg_i2c(struct w9966_dev *cam, int reg)
{
int data;
/* Write a register to the i2c device.
Expects claimed pdev. -1 on error */
-static int w9966_wReg_i2c(struct w9966_dev *cam, int reg, int data)
+static int w9966_write_reg_i2c(struct w9966_dev *cam, int reg, int data)
{
w9966_i2c_setsda(cam, 0);
w9966_i2c_setscl(cam, 0);
if (w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 ||
- w9966_i2c_wbyte(cam, reg) == -1 ||
- w9966_i2c_wbyte(cam, data) == -1)
+ w9966_i2c_wbyte(cam, reg) == -1 ||
+ w9966_i2c_wbyte(cam, data) == -1)
return -1;
w9966_i2c_setsda(cam, 0);
enh_s = 0;
enh_e = w * h * 2;
-/* Modify capture window if necessary and calculate downscaling */
+ /* Modify capture window if necessary and calculate downscaling */
if (w9966_calcscale(w, W9966_WND_MIN_X, W9966_WND_MAX_X, &x1, &x2, &scale_x) != 0 ||
- w9966_calcscale(h, W9966_WND_MIN_Y, W9966_WND_MAX_Y, &y1, &y2, &scale_y) != 0)
+ w9966_calcscale(h, W9966_WND_MIN_Y, W9966_WND_MAX_Y, &y1, &y2, &scale_y) != 0)
return -1;
DPRINTF("%dx%d, x: %d<->%d, y: %d<->%d, sx: %d/64, sy: %d/64.\n",
- w, h, x1, x2, y1, y2, scale_x & ~0x80, scale_y & ~0x80);
+ w, h, x1, x2, y1, y2, scale_x & ~0x80, scale_y & ~0x80);
-/* Setup registers */
+ /* Setup registers */
regs[0x00] = 0x00; /* Set normal operation */
regs[0x01] = 0x18; /* Capture mode */
regs[0x02] = scale_y; /* V-scaling */
saa7111_regs[0x0c] = cam->color;
saa7111_regs[0x0d] = cam->hue;
-/* Reset (ECP-fifo & serial-bus) */
- if (w9966_wReg(cam, 0x00, 0x03) == -1)
+ /* Reset (ECP-fifo & serial-bus) */
+ if (w9966_write_reg(cam, 0x00, 0x03) == -1)
return -1;
-/* Write regs to w9966cf chip */
+ /* Write regs to w9966cf chip */
for (i = 0; i < 0x1c; i++)
- if (w9966_wReg(cam, i, regs[i]) == -1)
+ if (w9966_write_reg(cam, i, regs[i]) == -1)
return -1;
-/* Write regs to saa7111 chip */
+ /* Write regs to saa7111 chip */
for (i = 0; i < 0x20; i++)
- if (w9966_wReg_i2c(cam, i, saa7111_regs[i]) == -1)
+ if (w9966_write_reg_i2c(cam, i, saa7111_regs[i]) == -1)
return -1;
return 0;
switch (cmd) {
case VIDIOCGCAP:
- {
- static struct video_capability vcap = {
- .name = W9966_DRIVERNAME,
- .type = VID_TYPE_CAPTURE | VID_TYPE_SCALES,
- .channels = 1,
- .maxwidth = W9966_WND_MAX_W,
- .maxheight = W9966_WND_MAX_H,
- .minwidth = 2,
- .minheight = 1,
- };
- struct video_capability *cap = arg;
- *cap = vcap;
- return 0;
- }
+ {
+ static struct video_capability vcap = {
+ .name = W9966_DRIVERNAME,
+ .type = VID_TYPE_CAPTURE | VID_TYPE_SCALES,
+ .channels = 1,
+ .maxwidth = W9966_WND_MAX_W,
+ .maxheight = W9966_WND_MAX_H,
+ .minwidth = 2,
+ .minheight = 1,
+ };
+ struct video_capability *cap = arg;
+ *cap = vcap;
+ return 0;
+ }
case VIDIOCGCHAN:
- {
- struct video_channel *vch = arg;
- if (vch->channel != 0) /* We only support one channel (#0) */
- return -EINVAL;
- memset(vch, 0, sizeof(*vch));
- strcpy(vch->name, "CCD-input");
- vch->type = VIDEO_TYPE_CAMERA;
- return 0;
- }
+ {
+ struct video_channel *vch = arg;
+ if (vch->channel != 0) /* We only support one channel (#0) */
+ return -EINVAL;
+ memset(vch, 0, sizeof(*vch));
+ strcpy(vch->name, "CCD-input");
+ vch->type = VIDEO_TYPE_CAMERA;
+ return 0;
+ }
case VIDIOCSCHAN:
- {
- struct video_channel *vch = arg;
- if (vch->channel != 0)
- return -EINVAL;
- return 0;
- }
+ {
+ struct video_channel *vch = arg;
+ if (vch->channel != 0)
+ return -EINVAL;
+ return 0;
+ }
case VIDIOCGTUNER:
- {
- struct video_tuner *vtune = arg;
- if (vtune->tuner != 0)
- return -EINVAL;
- strcpy(vtune->name, "no tuner");
- vtune->rangelow = 0;
- vtune->rangehigh = 0;
- vtune->flags = VIDEO_TUNER_NORM;
- vtune->mode = VIDEO_MODE_AUTO;
- vtune->signal = 0xffff;
- return 0;
- }
+ {
+ struct video_tuner *vtune = arg;
+ if (vtune->tuner != 0)
+ return -EINVAL;
+ strcpy(vtune->name, "no tuner");
+ vtune->rangelow = 0;
+ vtune->rangehigh = 0;
+ vtune->flags = VIDEO_TUNER_NORM;
+ vtune->mode = VIDEO_MODE_AUTO;
+ vtune->signal = 0xffff;
+ return 0;
+ }
case VIDIOCSTUNER:
- {
- struct video_tuner *vtune = arg;
- if (vtune->tuner != 0)
- return -EINVAL;
- if (vtune->mode != VIDEO_MODE_AUTO)
- return -EINVAL;
- return 0;
- }
+ {
+ struct video_tuner *vtune = arg;
+ if (vtune->tuner != 0)
+ return -EINVAL;
+ if (vtune->mode != VIDEO_MODE_AUTO)
+ return -EINVAL;
+ return 0;
+ }
case VIDIOCGPICT:
- {
- struct video_picture vpic = {
- cam->brightness << 8, /* brightness */
- (cam->hue + 128) << 8, /* hue */
- cam->color << 9, /* color */
- cam->contrast << 9, /* contrast */
- 0x8000, /* whiteness */
- 16, VIDEO_PALETTE_YUV422/* bpp, palette format */
- };
- struct video_picture *pic = arg;
- *pic = vpic;
- return 0;
- }
+ {
+ struct video_picture vpic = {
+ cam->brightness << 8, /* brightness */
+ (cam->hue + 128) << 8, /* hue */
+ cam->color << 9, /* color */
+ cam->contrast << 9, /* contrast */
+ 0x8000, /* whiteness */
+ 16, VIDEO_PALETTE_YUV422/* bpp, palette format */
+ };
+ struct video_picture *pic = arg;
+ *pic = vpic;
+ return 0;
+ }
case VIDIOCSPICT:
- {
- struct video_picture *vpic = arg;
- if (vpic->depth != 16 || (vpic->palette != VIDEO_PALETTE_YUV422 && vpic->palette != VIDEO_PALETTE_YUYV))
- return -EINVAL;
-
- cam->brightness = vpic->brightness >> 8;
- cam->hue = (vpic->hue >> 8) - 128;
- cam->color = vpic->colour >> 9;
- cam->contrast = vpic->contrast >> 9;
+ {
+ struct video_picture *vpic = arg;
+ if (vpic->depth != 16 || (vpic->palette != VIDEO_PALETTE_YUV422 && vpic->palette != VIDEO_PALETTE_YUYV))
+ return -EINVAL;
+
+ cam->brightness = vpic->brightness >> 8;
+ cam->hue = (vpic->hue >> 8) - 128;
+ cam->color = vpic->colour >> 9;
+ cam->contrast = vpic->contrast >> 9;
+
+ w9966_pdev_claim(cam);
+
+ if (
+ w9966_write_reg_i2c(cam, 0x0a, cam->brightness) == -1 ||
+ w9966_write_reg_i2c(cam, 0x0b, cam->contrast) == -1 ||
+ w9966_write_reg_i2c(cam, 0x0c, cam->color) == -1 ||
+ w9966_write_reg_i2c(cam, 0x0d, cam->hue) == -1
+ ) {
+ w9966_pdev_release(cam);
+ return -EIO;
+ }
- w9966_pdev_claim(cam);
-
- if (
- w9966_wReg_i2c(cam, 0x0a, cam->brightness) == -1 ||
- w9966_wReg_i2c(cam, 0x0b, cam->contrast) == -1 ||
- w9966_wReg_i2c(cam, 0x0c, cam->color) == -1 ||
- w9966_wReg_i2c(cam, 0x0d, cam->hue) == -1
- ) {
w9966_pdev_release(cam);
- return -EIO;
+ return 0;
}
-
- w9966_pdev_release(cam);
- return 0;
- }
case VIDIOCSWIN:
- {
- int ret;
- struct video_window *vwin = arg;
-
- if (vwin->flags != 0)
- return -EINVAL;
- if (vwin->clipcount != 0)
- return -EINVAL;
- if (vwin->width < 2 || vwin->width > W9966_WND_MAX_W)
- return -EINVAL;
- if (vwin->height < 1 || vwin->height > W9966_WND_MAX_H)
- return -EINVAL;
-
- /* Update camera regs */
- w9966_pdev_claim(cam);
- ret = w9966_setup(cam, 0, 0, 1023, 1023, vwin->width, vwin->height);
- w9966_pdev_release(cam);
+ {
+ int ret;
+ struct video_window *vwin = arg;
+
+ if (vwin->flags != 0)
+ return -EINVAL;
+ if (vwin->clipcount != 0)
+ return -EINVAL;
+ if (vwin->width < 2 || vwin->width > W9966_WND_MAX_W)
+ return -EINVAL;
+ if (vwin->height < 1 || vwin->height > W9966_WND_MAX_H)
+ return -EINVAL;
+
+ /* Update camera regs */
+ w9966_pdev_claim(cam);
+ ret = w9966_setup(cam, 0, 0, 1023, 1023, vwin->width, vwin->height);
+ w9966_pdev_release(cam);
- if (ret != 0) {
- DPRINTF("VIDIOCSWIN: w9966_setup() failed.\n");
- return -EIO;
- }
+ if (ret != 0) {
+ DPRINTF("VIDIOCSWIN: w9966_setup() failed.\n");
+ return -EIO;
+ }
- return 0;
- }
+ return 0;
+ }
case VIDIOCGWIN:
- {
- struct video_window *vwin = arg;
- memset(vwin, 0, sizeof(*vwin));
- vwin->width = cam->width;
- vwin->height = cam->height;
- return 0;
- }
- /* Unimplemented */
+ {
+ struct video_window *vwin = arg;
+ memset(vwin, 0, sizeof(*vwin));
+ vwin->width = cam->width;
+ vwin->height = cam->height;
+ return 0;
+ }
+ /* Unimplemented */
case VIDIOCCAPTURE:
case VIDIOCGFBUF:
case VIDIOCSFBUF:
}
static long w9966_v4l_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
return video_usercopy(file, cmd, arg, w9966_v4l_do_ioctl);
}
/* Capture data */
static ssize_t w9966_v4l_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
+ size_t count, loff_t *ppos)
{
struct w9966_dev *cam = video_drvdata(file);
unsigned char addr = 0xa0; /* ECP, read, CCD-transfer, 00000 */
return -EINVAL;
w9966_pdev_claim(cam);
- w9966_wReg(cam, 0x00, 0x02); /* Reset ECP-FIFO buffer */
- w9966_wReg(cam, 0x00, 0x00); /* Return to normal operation */
- w9966_wReg(cam, 0x01, 0x98); /* Enable capture */
+ w9966_write_reg(cam, 0x00, 0x02); /* Reset ECP-FIFO buffer */
+ w9966_write_reg(cam, 0x00, 0x00); /* Return to normal operation */
+ w9966_write_reg(cam, 0x01, 0x98); /* Enable capture */
/* write special capture-addr and negotiate into data transfer */
if ((parport_negotiate(cam->pport, cam->ppmode|IEEE1284_ADDR) != 0) ||
- (parport_write(cam->pport, &addr, 1) != 1) ||
- (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_DATA) != 0)) {
+ (parport_write(cam->pport, &addr, 1) != 1) ||
+ (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_DATA) != 0)) {
w9966_pdev_release(cam);
return -EFAULT;
}
dleft -= tsize;
}
- w9966_wReg(cam, 0x01, 0x18); /* Disable capture */
+ w9966_write_reg(cam, 0x01, 0x18); /* Disable capture */
out:
kfree(tbuf);
cam->color = 64;
cam->hue = 0;
-/* Select requested transfer mode */
+ /* Select requested transfer mode */
switch (parmode) {
default: /* Auto-detect (priority: hw-ecp, hw-epp, sw-ecp) */
case 0:
break;
case 2: /* hw- or sw-epp */
cam->ppmode = IEEE1284_MODE_EPP;
- break;
+ break;
}
-/* Tell the parport driver that we exists */
+ /* Tell the parport driver that we exists */
cam->pdev = parport_register_device(port, "w9966", NULL, NULL, NULL, 0, NULL);
if (cam->pdev == NULL) {
DPRINTF("parport_register_device() failed\n");
return -1;
}
- w9966_setState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV);
+ w9966_set_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV);
w9966_pdev_claim(cam);
-/* Setup a default capture mode */
+ /* Setup a default capture mode */
if (w9966_setup(cam, 0, 0, 1023, 1023, 200, 160) != 0) {
DPRINTF("w9966_setup() failed.\n");
return -1;
w9966_pdev_release(cam);
-/* Fill in the video_device struct and register us to v4l */
+ /* Fill in the video_device struct and register us to v4l */
memcpy(&cam->vdev, &w9966_template, sizeof(struct video_device));
video_set_drvdata(&cam->vdev, cam);
if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0)
return -1;
- w9966_setState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV);
+ w9966_set_state(cam, W9966_STATE_VDEV, W9966_STATE_VDEV);
/* All ok */
printk(KERN_INFO "w9966cf: Found and initialized a webcam on %s.\n",
- cam->pport->name);
+ cam->pport->name);
return 0;
}
/* Terminate everything gracefully */
static void w9966_term(struct w9966_dev *cam)
{
-/* Unregister from v4l */
- if (w9966_getState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV)) {
+ /* Unregister from v4l */
+ if (w9966_get_state(cam, W9966_STATE_VDEV, W9966_STATE_VDEV)) {
video_unregister_device(&cam->vdev);
- w9966_setState(cam, W9966_STATE_VDEV, 0);
+ w9966_set_state(cam, W9966_STATE_VDEV, 0);
}
-/* Terminate from IEEE1284 mode and release pdev block */
- if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
+ /* Terminate from IEEE1284 mode and release pdev block */
+ if (w9966_get_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
w9966_pdev_claim(cam);
parport_negotiate(cam->pport, IEEE1284_MODE_COMPAT);
w9966_pdev_release(cam);
}
-/* Unregister from parport */
- if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
+ /* Unregister from parport */
+ if (w9966_get_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
parport_unregister_device(cam->pdev);
- w9966_setState(cam, W9966_STATE_PDEV, 0);
+ w9966_set_state(cam, W9966_STATE_PDEV, 0);
}
}
OSDN Git Service
