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path: root/drivers/usb/media/sn9c102_core.c
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Diffstat (limited to 'drivers/usb/media/sn9c102_core.c')
-rw-r--r--drivers/usb/media/sn9c102_core.c1681
1 files changed, 915 insertions, 766 deletions
diff --git a/drivers/usb/media/sn9c102_core.c b/drivers/usb/media/sn9c102_core.c
index 8d1a1c357d5..c81397e4714 100644
--- a/drivers/usb/media/sn9c102_core.c
+++ b/drivers/usb/media/sn9c102_core.c
@@ -1,7 +1,7 @@
/***************************************************************************
* V4L2 driver for SN9C10x PC Camera Controllers *
* *
- * Copyright (C) 2004-2005 by Luca Risolia <luca.risolia@studio.unibo.it> *
+ * Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@@ -45,6 +45,15 @@
/*****************************************************************************/
+#define SN9C102_MODULE_NAME "V4L2 driver for SN9C10x PC Camera Controllers"
+#define SN9C102_MODULE_AUTHOR "(C) 2004-2006 Luca Risolia"
+#define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
+#define SN9C102_MODULE_LICENSE "GPL"
+#define SN9C102_MODULE_VERSION "1:1.26"
+#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 26)
+
+/*****************************************************************************/
+
MODULE_DEVICE_TABLE(usb, sn9c102_id_table);
MODULE_AUTHOR(SN9C102_MODULE_AUTHOR " " SN9C102_AUTHOR_EMAIL);
@@ -70,10 +79,10 @@ static short force_munmap[] = {[0 ... SN9C102_MAX_DEVICES-1] =
SN9C102_FORCE_MUNMAP};
module_param_array(force_munmap, bool, NULL, 0444);
MODULE_PARM_DESC(force_munmap,
- "\n<0|1[,...]> Force the application to unmap previously "
- "\nmapped buffer memory before calling any VIDIOC_S_CROP or "
- "\nVIDIOC_S_FMT ioctl's. Not all the applications support "
- "\nthis feature. This parameter is specific for each "
+ "\n<0|1[,...]> Force the application to unmap previously"
+ "\nmapped buffer memory before calling any VIDIOC_S_CROP or"
+ "\nVIDIOC_S_FMT ioctl's. Not all the applications support"
+ "\nthis feature. This parameter is specific for each"
"\ndetected camera."
"\n 0 = do not force memory unmapping"
"\n 1 = force memory unmapping (save memory)"
@@ -102,6 +111,9 @@ static sn9c102_sof_header_t sn9c102_sof_header[] = {
{0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x01},
};
+static sn9c103_sof_header_t sn9c103_sof_header[] = {
+ {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x20},
+};
static sn9c102_eof_header_t sn9c102_eof_header[] = {
{0x00, 0x00, 0x00, 0x00},
@@ -112,50 +124,6 @@ static sn9c102_eof_header_t sn9c102_eof_header[] = {
/*****************************************************************************/
-static void* rvmalloc(size_t size)
-{
- void* mem;
- unsigned long adr;
-
- size = PAGE_ALIGN(size);
-
- mem = vmalloc_32((unsigned long)size);
- if (!mem)
- return NULL;
-
- memset(mem, 0, size);
-
- adr = (unsigned long)mem;
- while (size > 0) {
- SetPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- return mem;
-}
-
-
-static void rvfree(void* mem, size_t size)
-{
- unsigned long adr;
-
- if (!mem)
- return;
-
- size = PAGE_ALIGN(size);
-
- adr = (unsigned long)mem;
- while (size > 0) {
- ClearPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- vfree(mem);
-}
-
-
static u32
sn9c102_request_buffers(struct sn9c102_device* cam, u32 count,
enum sn9c102_io_method io)
@@ -174,7 +142,7 @@ sn9c102_request_buffers(struct sn9c102_device* cam, u32 count,
cam->nbuffers = count;
while (cam->nbuffers > 0) {
- if ((buff = rvmalloc(cam->nbuffers * PAGE_ALIGN(imagesize))))
+ if ((buff = vmalloc_32(cam->nbuffers * PAGE_ALIGN(imagesize))))
break;
cam->nbuffers--;
}
@@ -198,10 +166,10 @@ sn9c102_request_buffers(struct sn9c102_device* cam, u32 count,
static void sn9c102_release_buffers(struct sn9c102_device* cam)
{
if (cam->nbuffers) {
- rvfree(cam->frame[0].bufmem,
- cam->nbuffers * PAGE_ALIGN(cam->frame[0].buf.length));
+ vfree(cam->frame[0].bufmem);
cam->nbuffers = 0;
}
+ cam->frame_current = NULL;
}
@@ -219,6 +187,19 @@ static void sn9c102_empty_framequeues(struct sn9c102_device* cam)
}
+static void sn9c102_requeue_outqueue(struct sn9c102_device* cam)
+{
+ struct sn9c102_frame_t *i;
+
+ list_for_each_entry(i, &cam->outqueue, frame) {
+ i->state = F_QUEUED;
+ list_add(&i->frame, &cam->inqueue);
+ }
+
+ INIT_LIST_HEAD(&cam->outqueue);
+}
+
+
static void sn9c102_queue_unusedframes(struct sn9c102_device* cam)
{
unsigned long lock_flags;
@@ -235,19 +216,46 @@ static void sn9c102_queue_unusedframes(struct sn9c102_device* cam)
/*****************************************************************************/
+int sn9c102_write_regs(struct sn9c102_device* cam, u8* buff, u16 index)
+{
+ struct usb_device* udev = cam->usbdev;
+ int i, res;
+
+ if (index + sizeof(buff) >= ARRAY_SIZE(cam->reg))
+ return -1;
+
+ res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
+ index, 0, buff, sizeof(buff),
+ SN9C102_CTRL_TIMEOUT*sizeof(buff));
+ if (res < 0) {
+ DBG(3, "Failed to write registers (index 0x%02X, error %d)",
+ index, res);
+ return -1;
+ }
+
+ for (i = 0; i < sizeof(buff); i++)
+ cam->reg[index+i] = buff[i];
+
+ return 0;
+}
+
+
int sn9c102_write_reg(struct sn9c102_device* cam, u8 value, u16 index)
{
struct usb_device* udev = cam->usbdev;
u8* buff = cam->control_buffer;
int res;
+ if (index >= ARRAY_SIZE(cam->reg))
+ return -1;
+
*buff = value;
res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
if (res < 0) {
DBG(3, "Failed to write a register (value 0x%02X, index "
- "0x%02X, error %d)", value, index, res)
+ "0x%02X, error %d)", value, index, res);
return -1;
}
@@ -268,7 +276,7 @@ static int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
if (res < 0)
DBG(3, "Failed to read a register (index 0x%02X, error %d)",
- index, res)
+ index, res);
return (res >= 0) ? (int)(*buff) : -1;
}
@@ -276,8 +284,8 @@ static int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
int sn9c102_pread_reg(struct sn9c102_device* cam, u16 index)
{
- if (index > 0x1f)
- return -EINVAL;
+ if (index >= ARRAY_SIZE(cam->reg))
+ return -1;
return cam->reg[index];
}
@@ -367,10 +375,10 @@ sn9c102_i2c_try_raw_read(struct sn9c102_device* cam,
err += sn9c102_i2c_detect_read_error(cam, sensor);
PDBGG("I2C read: address 0x%02X, first read byte: 0x%02X", data1,
- data[4])
+ data[4]);
if (err) {
- DBG(3, "I2C read failed for %s image sensor", sensor->name)
+ DBG(3, "I2C read failed for %s image sensor", sensor->name);
return -1;
}
@@ -410,11 +418,11 @@ sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
err += sn9c102_i2c_detect_write_error(cam, sensor);
if (err)
- DBG(3, "I2C write failed for %s image sensor", sensor->name)
+ DBG(3, "I2C write failed for %s image sensor", sensor->name);
PDBGG("I2C raw write: %u bytes, data0 = 0x%02X, data1 = 0x%02X, "
"data2 = 0x%02X, data3 = 0x%02X, data4 = 0x%02X, data5 = 0x%02X",
- n, data0, data1, data2, data3, data4, data5)
+ n, data0, data1, data2, data3, data4, data5);
return err ? -1 : 0;
}
@@ -461,13 +469,27 @@ int sn9c102_i2c_write(struct sn9c102_device* cam, u8 address, u8 value)
static void*
sn9c102_find_sof_header(struct sn9c102_device* cam, void* mem, size_t len)
{
- size_t soflen = sizeof(sn9c102_sof_header_t), i;
- u8 j, n = sizeof(sn9c102_sof_header) / soflen;
+ size_t soflen = 0, i;
+ u8 j, n = 0;
- for (i = 0; (len >= soflen) && (i <= len - soflen); i++)
+ switch (cam->bridge) {
+ case BRIDGE_SN9C101:
+ case BRIDGE_SN9C102:
+ soflen = sizeof(sn9c102_sof_header_t);
+ n = sizeof(sn9c102_sof_header) / soflen;
+ break;
+ case BRIDGE_SN9C103:
+ soflen = sizeof(sn9c103_sof_header_t);
+ n = sizeof(sn9c103_sof_header) / soflen;
+ }
+
+ for (i = 0; (len >= soflen) && (i <= len - soflen); i++)
for (j = 0; j < n; j++)
- /* It's enough to compare 7 bytes */
- if (!memcmp(mem + i, sn9c102_sof_header[j], 7)) {
+ /* The invariable part of the header is 6 bytes long */
+ if ((cam->bridge != BRIDGE_SN9C103 &&
+ !memcmp(mem + i, sn9c102_sof_header[j], 6)) ||
+ (cam->bridge == BRIDGE_SN9C103 &&
+ !memcmp(mem + i, sn9c103_sof_header[j], 6))) {
memcpy(cam->sof_header, mem + i, soflen);
/* Skip the header */
return mem + i + soflen;
@@ -499,8 +521,7 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
{
struct sn9c102_device* cam = urb->context;
struct sn9c102_frame_t** f;
- size_t imagesize;
- unsigned long lock_flags;
+ size_t imagesize, soflen;
u8 i;
int err = 0;
@@ -513,7 +534,7 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
cam->stream = STREAM_OFF;
if ((*f))
(*f)->state = F_QUEUED;
- DBG(3, "Stream interrupted")
+ DBG(3, "Stream interrupted");
wake_up_interruptible(&cam->wait_stream);
}
@@ -536,6 +557,10 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
cam->sensor->pix_format.height *
cam->sensor->pix_format.priv) / 8;
+ soflen = (cam->bridge) == BRIDGE_SN9C103 ?
+ sizeof(sn9c103_sof_header_t) :
+ sizeof(sn9c102_sof_header_t);
+
for (i = 0; i < urb->number_of_packets; i++) {
unsigned int img, len, status;
void *pos, *sof, *eof;
@@ -545,19 +570,12 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
pos = urb->iso_frame_desc[i].offset + urb->transfer_buffer;
if (status) {
- DBG(3, "Error in isochronous frame")
+ DBG(3, "Error in isochronous frame");
(*f)->state = F_ERROR;
continue;
}
- PDBGG("Isochrnous frame: length %u, #%u i", len, i)
-
- /*
- NOTE: It is probably correct to assume that SOF and EOF
- headers do not occur between two consecutive packets,
- but who knows..Whatever is the truth, this assumption
- doesn't introduce bugs.
- */
+ PDBGG("Isochrnous frame: length %u, #%u i", len, i);
redo:
sof = sn9c102_find_sof_header(cam, pos, len);
@@ -575,10 +593,10 @@ end_of_frame:
imagesize;
img = imagesize - (*f)->buf.bytesused;
DBG(3, "Expected EOF not found: "
- "video frame cut")
+ "video frame cut");
if (eof)
DBG(3, "Exceeded limit: +%u "
- "bytes", (unsigned)(b))
+ "bytes", (unsigned)(b));
}
memcpy((*f)->bufmem + (*f)->buf.bytesused, pos,
@@ -595,8 +613,7 @@ end_of_frame:
u32 b = (*f)->buf.bytesused;
(*f)->state = F_DONE;
(*f)->buf.sequence= ++cam->frame_count;
- spin_lock_irqsave(&cam->queue_lock,
- lock_flags);
+ spin_lock(&cam->queue_lock);
list_move_tail(&(*f)->frame,
&cam->outqueue);
if (!list_empty(&cam->inqueue))
@@ -606,13 +623,11 @@ end_of_frame:
frame );
else
(*f) = NULL;
- spin_unlock_irqrestore(&cam->queue_lock
- , lock_flags);
+ spin_unlock(&cam->queue_lock);
memcpy(cam->sysfs.frame_header,
- cam->sof_header,
- sizeof(sn9c102_sof_header_t));
- DBG(3, "Video frame captured: "
- "%lu bytes", (unsigned long)(b))
+ cam->sof_header, soflen);
+ DBG(3, "Video frame captured: %lu "
+ "bytes", (unsigned long)(b));
if (!(*f))
goto resubmit_urb;
@@ -621,18 +636,19 @@ end_of_frame:
(*f)->state = F_ERROR;
DBG(3, "Not expected EOF after %lu "
"bytes of image data",
- (unsigned long)((*f)->buf.bytesused))
+ (unsigned long)
+ ((*f)->buf.bytesused));
}
if (sof) /* (1) */
goto start_of_frame;
} else if (eof) {
- DBG(3, "EOF without SOF")
+ DBG(3, "EOF without SOF");
continue;
} else {
- PDBGG("Ignoring pointless isochronous frame")
+ PDBGG("Ignoring pointless isochronous frame");
continue;
}
@@ -642,7 +658,7 @@ start_of_frame:
(*f)->buf.bytesused = 0;
len -= (sof - pos);
pos = sof;
- DBG(3, "SOF detected: new video frame")
+ DBG(3, "SOF detected: new video frame");
if (len)
goto redo;
@@ -653,12 +669,13 @@ start_of_frame:
else {
if (cam->sensor->pix_format.pixelformat ==
V4L2_PIX_FMT_SN9C10X) {
- eof = sof-sizeof(sn9c102_sof_header_t);
+ eof = sof - soflen;
goto end_of_frame;
} else {
DBG(3, "SOF before expected EOF after "
"%lu bytes of image data",
- (unsigned long)((*f)->buf.bytesused))
+ (unsigned long)
+ ((*f)->buf.bytesused));
goto start_of_frame;
}
}
@@ -670,7 +687,7 @@ resubmit_urb:
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0 && err != -EPERM) {
cam->state |= DEV_MISCONFIGURED;
- DBG(1, "usb_submit_urb() failed")
+ DBG(1, "usb_submit_urb() failed");
}
wake_up_interruptible(&cam->wait_frame);
@@ -681,18 +698,22 @@ static int sn9c102_start_transfer(struct sn9c102_device* cam)
{
struct usb_device *udev = cam->usbdev;
struct urb* urb;
- const unsigned int wMaxPacketSize[] = {0, 128, 256, 384, 512,
- 680, 800, 900, 1023};
- const unsigned int psz = wMaxPacketSize[SN9C102_ALTERNATE_SETTING];
+ const unsigned int sn9c102_wMaxPacketSize[] = {0, 128, 256, 384, 512,
+ 680, 800, 900, 1023};
+ const unsigned int sn9c103_wMaxPacketSize[] = {0, 128, 256, 384, 512,
+ 680, 800, 900, 1003};
+ const unsigned int psz = (cam->bridge == BRIDGE_SN9C103) ?
+ sn9c103_wMaxPacketSize[SN9C102_ALTERNATE_SETTING] :
+ sn9c102_wMaxPacketSize[SN9C102_ALTERNATE_SETTING];
s8 i, j;
int err = 0;
for (i = 0; i < SN9C102_URBS; i++) {
- cam->transfer_buffer[i] = kmalloc(SN9C102_ISO_PACKETS * psz,
+ cam->transfer_buffer[i] = kzalloc(SN9C102_ISO_PACKETS * psz,
GFP_KERNEL);
if (!cam->transfer_buffer[i]) {
err = -ENOMEM;
- DBG(1, "Not enough memory")
+ DBG(1, "Not enough memory");
goto free_buffers;
}
}
@@ -702,7 +723,7 @@ static int sn9c102_start_transfer(struct sn9c102_device* cam)
cam->urb[i] = urb;
if (!urb) {
err = -ENOMEM;
- DBG(1, "usb_alloc_urb() failed")
+ DBG(1, "usb_alloc_urb() failed");
goto free_urbs;
}
urb->dev = udev;
@@ -725,14 +746,14 @@ static int sn9c102_start_transfer(struct sn9c102_device* cam)
err = sn9c102_write_reg(cam, cam->reg[0x01] | 0x04, 0x01);
if (err) {
err = -EIO;
- DBG(1, "I/O hardware error")
+ DBG(1, "I/O hardware error");
goto free_urbs;
}
}
err = usb_set_interface(udev, 0, SN9C102_ALTERNATE_SETTING);
if (err) {
- DBG(1, "usb_set_interface() failed")
+ DBG(1, "usb_set_interface() failed");
goto free_urbs;
}
@@ -743,7 +764,7 @@ static int sn9c102_start_transfer(struct sn9c102_device* cam)
if (err) {
for (j = i-1; j >= 0; j--)
usb_kill_urb(cam->urb[j]);
- DBG(1, "usb_submit_urb() failed, error %d", err)
+ DBG(1, "usb_submit_urb() failed, error %d", err);
goto free_urbs;
}
}
@@ -779,7 +800,7 @@ static int sn9c102_stop_transfer(struct sn9c102_device* cam)
err = usb_set_interface(udev, 0, 0); /* 0 Mb/s */
if (err)
- DBG(3, "usb_set_interface() failed")
+ DBG(3, "usb_set_interface() failed");
return err;
}
@@ -799,7 +820,7 @@ static int sn9c102_stream_interrupt(struct sn9c102_device* cam)
else if (err) {
cam->state |= DEV_MISCONFIGURED;
DBG(1, "The camera is misconfigured. To use it, close and "
- "open /dev/video%d again.", cam->v4ldev->minor)
+ "open /dev/video%d again.", cam->v4ldev->minor);
return err;
}
@@ -808,6 +829,7 @@ static int sn9c102_stream_interrupt(struct sn9c102_device* cam)
/*****************************************************************************/
+#ifdef CONFIG_VIDEO_ADV_DEBUG
static u8 sn9c102_strtou8(const char* buff, size_t len, ssize_t* count)
{
char str[5];
@@ -885,8 +907,8 @@ sn9c102_store_reg(struct class_device* cd, const char* buf, size_t len)
cam->sysfs.reg = index;
- DBG(2, "Moved SN9C10X register index to 0x%02X", cam->sysfs.reg)
- DBG(3, "Written bytes: %zd", count)
+ DBG(2, "Moved SN9C10X register index to 0x%02X", cam->sysfs.reg);
+ DBG(3, "Written bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -916,7 +938,7 @@ static ssize_t sn9c102_show_val(struct class_device* cd, char* buf)
count = sprintf(buf, "%d\n", val);
- DBG(3, "Read bytes: %zd", count)
+ DBG(3, "Read bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -954,8 +976,8 @@ sn9c102_store_val(struct class_device* cd, const char* buf, size_t len)
}
DBG(2, "Written SN9C10X reg. 0x%02X, val. 0x%02X",
- cam->sysfs.reg, value)
- DBG(3, "Written bytes: %zd", count)
+ cam->sysfs.reg, value);
+ DBG(3, "Written bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -979,7 +1001,7 @@ static ssize_t sn9c102_show_i2c_reg(struct class_device* cd, char* buf)
count = sprintf(buf, "%u\n", cam->sysfs.i2c_reg);
- DBG(3, "Read bytes: %zd", count)
+ DBG(3, "Read bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -1011,8 +1033,8 @@ sn9c102_store_i2c_reg(struct class_device* cd, const char* buf, size_t len)
cam->sysfs.i2c_reg = index;
- DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg)
- DBG(3, "Written bytes: %zd", count)
+ DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg);
+ DBG(3, "Written bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -1047,7 +1069,7 @@ static ssize_t sn9c102_show_i2c_val(struct class_device* cd, char* buf)
count = sprintf(buf, "%d\n", val);
- DBG(3, "Read bytes: %zd", count)
+ DBG(3, "Read bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -1090,8 +1112,8 @@ sn9c102_store_i2c_val(struct class_device* cd, const char* buf, size_t len)
}
DBG(2, "Written sensor reg. 0x%02X, val. 0x%02X",
- cam->sysfs.i2c_reg, value)
- DBG(3, "Written bytes: %zd", count)
+ cam->sysfs.i2c_reg, value);
+ DBG(3, "Written bytes: %zd", count);
up(&sn9c102_sysfs_lock);
@@ -1193,7 +1215,7 @@ static ssize_t sn9c102_show_frame_header(struct class_device* cd, char* buf)
count = sizeof(cam->sysfs.frame_header);
memcpy(buf, cam->sysfs.frame_header, count);
- DBG(3, "Frame header, read bytes: %zd", count)
+ DBG(3, "Frame header, read bytes: %zd", count);
return count;
}
@@ -1227,11 +1249,12 @@ static void sn9c102_create_sysfs(struct sn9c102_device* cam)
video_device_create_file(v4ldev, &class_device_attr_blue);
video_device_create_file(v4ldev, &class_device_attr_red);
}
- if (cam->sensor->sysfs_ops) {
+ if (cam->sensor && cam->sensor->sysfs_ops) {
video_device_create_file(v4ldev, &class_device_attr_i2c_reg);
video_device_create_file(v4ldev, &class_device_attr_i2c_val);
}
}
+#endif /* CONFIG_VIDEO_ADV_DEBUG */
/*****************************************************************************/
@@ -1281,7 +1304,7 @@ static int sn9c102_set_scale(struct sn9c102_device* cam, u8 scale)
if (err)
return -EIO;
- PDBGG("Scaling factor: %u", scale)
+ PDBGG("Scaling factor: %u", scale);
return 0;
}
@@ -1304,7 +1327,7 @@ static int sn9c102_set_crop(struct sn9c102_device* cam, struct v4l2_rect* rect)
return -EIO;
PDBGG("h_start, v_start, h_size, v_size, ho_size, vo_size "
- "%u %u %u %u", h_start, v_start, h_size, v_size)
+ "%u %u %u %u", h_start, v_start, h_size, v_size);
return 0;
}
@@ -1336,7 +1359,7 @@ static int sn9c102_init(struct sn9c102_device* cam)
if (s->init) {
err = s->init(cam);
if (err) {
- DBG(3, "Sensor initialization failed")
+ DBG(3, "Sensor initialization failed");
return err;
}
}
@@ -1353,13 +1376,13 @@ static int sn9c102_init(struct sn9c102_device* cam)
if (s->pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X)
DBG(3, "Compressed video format is active, quality %d",
- cam->compression.quality)
+ cam->compression.quality);
else
- DBG(3, "Uncompressed video format is active")
+ DBG(3, "Uncompressed video format is active");
if (s->set_crop)
if ((err = s->set_crop(cam, rect))) {
- DBG(3, "set_crop() failed")
+ DBG(3, "set_crop() failed");
return err;
}
@@ -1372,11 +1395,11 @@ static int sn9c102_init(struct sn9c102_device* cam)
err = s->set_ctrl(cam, &ctrl);
if (err) {
DBG(3, "Set %s control failed",
- s->qctrl[i].name)
+ s->qctrl[i].name);
return err;
}
DBG(3, "Image sensor supports '%s' control",
- s->qctrl[i].name)
+ s->qctrl[i].name);
}
}
@@ -1392,7 +1415,7 @@ static int sn9c102_init(struct sn9c102_device* cam)
cam->state |= DEV_INITIALIZED;
}
- DBG(2, "Initialization succeeded")
+ DBG(2, "Initialization succeeded");
return 0;
}
@@ -1401,7 +1424,7 @@ static void sn9c102_release_resources(struct sn9c102_device* cam)
{
down(&sn9c102_sysfs_lock);
- DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor)
+ DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor);
video_set_drvdata(cam->v4ldev, NULL);
video_unregister_device(cam->v4ldev);
@@ -1432,7 +1455,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp)
}
if (cam->users) {
- DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor)
+ DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor);
if ((filp->f_flags & O_NONBLOCK) ||
(filp->f_flags & O_NDELAY)) {
err = -EWOULDBLOCK;
@@ -1458,7 +1481,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp)
err = sn9c102_init(cam);
if (err) {
DBG(1, "Initialization failed again. "
- "I will retry on next open().")
+ "I will retry on next open().");
goto out;
}
cam->state &= ~DEV_MISCONFIGURED;
@@ -1475,7 +1498,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp)
cam->frame_count = 0;
sn9c102_empty_framequeues(cam);
- DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor)
+ DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor);
out:
up(&cam->dev_sem);
@@ -1504,7 +1527,7 @@ static int sn9c102_release(struct inode* inode, struct file* filp)
cam->users--;
wake_up_interruptible_nr(&cam->open, 1);
- DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor)
+ DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor);
up(&cam->dev_sem);
@@ -1524,32 +1547,38 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
return -ERESTARTSYS;
if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
+ DBG(1, "Device not present");
up(&cam->fileop_sem);
return -ENODEV;
}
if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
up(&cam->fileop_sem);
return -EIO;
}
if (cam->io == IO_MMAP) {
DBG(3, "Close and open the device again to choose "
- "the read method")
+ "the read method");
up(&cam->fileop_sem);
return -EINVAL;
}
if (cam->io == IO_NONE) {
if (!sn9c102_request_buffers(cam,cam->nreadbuffers, IO_READ)) {
- DBG(1, "read() failed, not enough memory")
+ DBG(1, "read() failed, not enough memory");
up(&cam->fileop_sem);
return -ENOMEM;
}
cam->io = IO_READ;
cam->stream = STREAM_ON;
+ }
+
+ if (list_empty(&cam->inqueue)) {
+ if (!list_empty(&cam->outqueue))
+ sn9c102_empty_framequeues(cam);
sn9c102_queue_unusedframes(cam);
}
@@ -1584,6 +1613,16 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
f = list_entry(cam->outqueue.prev, struct sn9c102_frame_t, frame);
+ if (count > f->buf.bytesused)
+ count = f->buf.bytesused;
+
+ if (copy_to_user(buf, f->bufmem, count)) {
+ err = -EFAULT;
+ goto exit;
+ }
+ *f_pos += count;
+
+exit:
spin_lock_irqsave(&cam->queue_lock, lock_flags);
list_for_each_entry(i, &cam->outqueue, frame)
i->state = F_UNUSED;
@@ -1592,16 +1631,8 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
sn9c102_queue_unusedframes(cam);
- if (count > f->buf.bytesused)
- count = f->buf.bytesused;
-
- if (copy_to_user(buf, f->bufmem, count)) {
- up(&cam->fileop_sem);
- return -EFAULT;
- }
- *f_pos += count;
-
- PDBGG("Frame #%lu, bytes read: %zu", (unsigned long)f->buf.index,count)
+ PDBGG("Frame #%lu, bytes read: %zu",
+ (unsigned long)f->buf.index, count);
up(&cam->fileop_sem);
@@ -1612,33 +1643,42 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
static unsigned int sn9c102_poll(struct file *filp, poll_table *wait)
{
struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ struct sn9c102_frame_t* f;
+ unsigned long lock_flags;
unsigned int mask = 0;
if (down_interruptible(&cam->fileop_sem))
return POLLERR;
if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
+ DBG(1, "Device not present");
goto error;
}
if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
goto error;
}
if (cam->io == IO_NONE) {
if (!sn9c102_request_buffers(cam, cam->nreadbuffers,
IO_READ)) {
- DBG(1, "poll() failed, not enough memory")
+ DBG(1, "poll() failed, not enough memory");
goto error;
}
cam->io = IO_READ;
cam->stream = STREAM_ON;
}
- if (cam->io == IO_READ)
+ if (cam->io == IO_READ) {
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_for_each_entry(f, &cam->outqueue, frame)
+ f->state = F_UNUSED;
+ INIT_LIST_HEAD(&cam->outqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
sn9c102_queue_unusedframes(cam);
+ }
poll_wait(filp, &cam->wait_frame, wait);
@@ -1680,22 +1720,22 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
{
struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
unsigned long size = vma->vm_end - vma->vm_start,
- start = vma->vm_start,
- pos,
- page;
+ start = vma->vm_start;
+ void *pos;
u32 i;
if (down_interruptible(&cam->fileop_sem))
return -ERESTARTSYS;
if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
+ DBG(1, "Device not present");
up(&cam->fileop_sem);
return -ENODEV;
}
if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
up(&cam->fileop_sem);
return -EIO;
}
@@ -1715,15 +1755,12 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
return -EINVAL;
}
- /* VM_IO is eventually going to replace PageReserved altogether */
vma->vm_flags |= VM_IO;
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+ vma->vm_flags |= VM_RESERVED;
- pos = (unsigned long)cam->frame[i].bufmem;
+ pos = cam->frame[i].bufmem;
while (size > 0) { /* size is page-aligned */
- page = vmalloc_to_pfn((void *)pos);
- if (remap_pfn_range(vma, start, page, PAGE_SIZE,
- vma->vm_page_prot)) {
+ if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
up(&cam->fileop_sem);
return -EAGAIN;
}
@@ -1742,738 +1779,861 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
return 0;
}
+/*****************************************************************************/
-static int sn9c102_ioctl_v4l2(struct inode* inode, struct file* filp,
- unsigned int cmd, void __user * arg)
+static int
+sn9c102_vidioc_querycap(struct sn9c102_device* cam, void __user * arg)
{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+ struct v4l2_capability cap = {
+ .driver = "sn9c102",
+ .version = SN9C102_MODULE_VERSION_CODE,
+ .capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING,
+ };
+
+ strlcpy(cap.card, cam->v4ldev->name, sizeof(cap.card));
+ if (usb_make_path(cam->usbdev, cap.bus_info, sizeof(cap.bus_info)) < 0)
+ strlcpy(cap.bus_info, cam->usbdev->dev.bus_id,
+ sizeof(cap.bus_info));
+
+ if (copy_to_user(arg, &cap, sizeof(cap)))
+ return -EFAULT;
- switch (cmd) {
+ return 0;
+}
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability cap = {
- .driver = "sn9c102",
- .version = SN9C102_MODULE_VERSION_CODE,
- .capabilities = V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_READWRITE |
- V4L2_CAP_STREAMING,
- };
-
- strlcpy(cap.card, cam->v4ldev->name, sizeof(cap.card));
- if (usb_make_path(cam->usbdev, cap.bus_info,
- sizeof(cap.bus_info)) < 0)
- strlcpy(cap.bus_info, cam->dev.bus_id,
- sizeof(cap.bus_info));
-
- if (copy_to_user(arg, &cap, sizeof(cap)))
- return -EFAULT;
- return 0;
- }
+static int
+sn9c102_vidioc_enuminput(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_input i;
- case VIDIOC_ENUMINPUT:
- {
- struct v4l2_input i;
+ if (copy_from_user(&i, arg, sizeof(i)))
+ return -EFAULT;
- if (copy_from_user(&i, arg, sizeof(i)))
- return -EFAULT;
+ if (i.index)
+ return -EINVAL;
- if (i.index)
- return -EINVAL;
+ memset(&i, 0, sizeof(i));
+ strcpy(i.name, "Camera");
- memset(&i, 0, sizeof(i));
- strcpy(i.name, "USB");
+ if (copy_to_user(arg, &i, sizeof(i)))
+ return -EFAULT;
- if (copy_to_user(arg, &i, sizeof(i)))
- return -EFAULT;
+ return 0;
+}
- return 0;
- }
- case VIDIOC_G_INPUT:
- case VIDIOC_S_INPUT:
- {
- int index;
+static int
+sn9c102_vidioc_gs_input(struct sn9c102_device* cam, void __user * arg)
+{
+ int index;
- if (copy_from_user(&index, arg, sizeof(index)))
- return -EFAULT;
+ if (copy_from_user(&index, arg, sizeof(index)))
+ return -EFAULT;
- if (index != 0)
- return -EINVAL;
+ if (index != 0)
+ return -EINVAL;
- return 0;
- }
+ return 0;
+}
- case VIDIOC_QUERYCTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_queryctrl qc;
- u8 i;
- if (copy_from_user(&qc, arg, sizeof(qc)))
- return -EFAULT;
+static int
+sn9c102_vidioc_query_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_queryctrl qc;
+ u8 i;
+ if (copy_from_user(&qc, arg, sizeof(qc)))
+ return -EFAULT;
+
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (qc.id && qc.id == s->qctrl[i].id) {
+ memcpy(&qc, &(s->qctrl[i]), sizeof(qc));
+ if (copy_to_user(arg, &qc, sizeof(qc)))
+ return -EFAULT;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+
+static int
+sn9c102_vidioc_g_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_control ctrl;
+ int err = 0;
+ u8 i;
+
+ if (!s->get_ctrl && !s->set_ctrl)
+ return -EINVAL;
+
+ if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
+ return -EFAULT;
+
+ if (!s->get_ctrl) {
for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
- if (qc.id && qc.id == s->qctrl[i].id) {
- memcpy(&qc, &(s->qctrl[i]), sizeof(qc));
- if (copy_to_user(arg, &qc, sizeof(qc)))
- return -EFAULT;
- return 0;
+ if (ctrl.id && ctrl.id == s->qctrl[i].id) {
+ ctrl.value = s->_qctrl[i].default_value;
+ goto exit;
}
-
return -EINVAL;
- }
+ } else
+ err = s->get_ctrl(cam, &ctrl);
- case VIDIOC_G_CTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_control ctrl;
- int err = 0;
+exit:
+ if (copy_to_user(arg, &ctrl, sizeof(ctrl)))
+ return -EFAULT;
- if (!s->get_ctrl)
- return -EINVAL;
+ return err;
+}
- if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
- return -EFAULT;
- err = s->get_ctrl(cam, &ctrl);
+static int
+sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_control ctrl;
+ u8 i;
+ int err = 0;
- if (copy_to_user(arg, &ctrl, sizeof(ctrl)))
- return -EFAULT;
+ if (!s->set_ctrl)
+ return -EINVAL;
+
+ if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
+ return -EFAULT;
+ for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+ if (ctrl.id == s->qctrl[i].id) {
+ if (ctrl.value < s->qctrl[i].minimum ||
+ ctrl.value > s->qctrl[i].maximum)
+ return -ERANGE;
+ ctrl.value -= ctrl.value % s->qctrl[i].step;
+ break;
+ }
+
+ if ((err = s->set_ctrl(cam, &ctrl)))
return err;
- }
- case VIDIOC_S_CTRL_OLD:
- case VIDIOC_S_CTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_control ctrl;
- u8 i;
- int err = 0;
+ s->_qctrl[i].default_value = ctrl.value;
- if (!s->set_ctrl)
- return -EINVAL;
+ PDBGG("VIDIOC_S_CTRL: id %lu, value %lu",
+ (unsigned long)ctrl.id, (unsigned long)ctrl.value);
- if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
- return -EFAULT;
+ return 0;
+}
- for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
- if (ctrl.id == s->qctrl[i].id) {
- if (ctrl.value < s->qctrl[i].minimum ||
- ctrl.value > s->qctrl[i].maximum)
- return -ERANGE;
- ctrl.value -= ctrl.value % s->qctrl[i].step;
- break;
+
+static int
+sn9c102_vidioc_cropcap(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_cropcap* cc = &(cam->sensor->cropcap);
+
+ cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ cc->pixelaspect.numerator = 1;
+ cc->pixelaspect.denominator = 1;
+
+ if (copy_to_user(arg, cc, sizeof(*cc)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_g_crop(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_crop crop = {
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ };
+
+ memcpy(&(crop.c), &(s->_rect), sizeof(struct v4l2_rect));
+
+ if (copy_to_user(arg, &crop, sizeof(crop)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_crop(struct sn9c102_device* cam, void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_crop crop;
+ struct v4l2_rect* rect;
+ struct v4l2_rect* bounds = &(s->cropcap.bounds);
+ struct v4l2_pix_format* pix_format = &(s->pix_format);
+ u8 scale;
+ const enum sn9c102_stream_state stream = cam->stream;
+ const u32 nbuffers = cam->nbuffers;
+ u32 i;
+ int err = 0;
+
+ if (copy_from_user(&crop, arg, sizeof(crop)))
+ return -EFAULT;
+
+ rect = &(crop.c);
+
+ if (crop.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ if (cam->module_param.force_munmap)
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_S_CROP failed. "
+ "Unmap the buffers first.");
+ return -EINVAL;
}
- if ((err = s->set_ctrl(cam, &ctrl)))
+ /* Preserve R,G or B origin */
+ rect->left = (s->_rect.left & 1L) ? rect->left | 1L : rect->left & ~1L;
+ rect->top = (s->_rect.top & 1L) ? rect->top | 1L : rect->top & ~1L;
+
+ if (rect->width < 16)
+ rect->width = 16;
+ if (rect->height < 16)
+ rect->height = 16;
+ if (rect->width > bounds->width)
+ rect->width = bounds->width;
+ if (rect->height > bounds->height)
+ rect->height = bounds->height;
+ if (rect->left < bounds->left)
+ rect->left = bounds->left;
+ if (rect->top < bounds->top)
+ rect->top = bounds->top;
+ if (rect->left + rect->width > bounds->left + bounds->width)
+ rect->left = bounds->left+bounds->width - rect->width;
+ if (rect->top + rect->height > bounds->top + bounds->height)
+ rect->top = bounds->top+bounds->height - rect->height;
+
+ rect->width &= ~15L;
+ rect->height &= ~15L;
+
+ if (SN9C102_PRESERVE_IMGSCALE) {
+ /* Calculate the actual scaling factor */
+ u32 a, b;
+ a = rect->width * rect->height;
+ b = pix_format->width * pix_format->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
+ } else
+ scale = 1;
+
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
return err;
- s->_qctrl[i].default_value = ctrl.value;
+ if (copy_to_user(arg, &crop, sizeof(crop))) {
+ cam->stream = stream;
+ return -EFAULT;
+ }
+
+ if (cam->module_param.force_munmap || cam->io == IO_READ)
+ sn9c102_release_buffers(cam);
- PDBGG("VIDIOC_S_CTRL: id %lu, value %lu",
- (unsigned long)ctrl.id, (unsigned long)ctrl.value)
+ err = sn9c102_set_crop(cam, rect);
+ if (s->set_crop)
+ err += s->set_crop(cam, rect);
+ err += sn9c102_set_scale(cam, scale);
- return 0;
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_CROP failed because of hardware problems. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -EIO;
}
- case VIDIOC_CROPCAP:
- {
- struct v4l2_cropcap* cc = &(cam->sensor->cropcap);
+ s->pix_format.width = rect->width/scale;
+ s->pix_format.height = rect->height/scale;
+ memcpy(&(s->_rect), rect, sizeof(*rect));
- cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- cc->pixelaspect.numerator = 1;
- cc->pixelaspect.denominator = 1;
+ if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
+ nbuffers != sn9c102_request_buffers(cam, nbuffers, cam->io)) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_CROP failed because of not enough memory. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -ENOMEM;
+ }
- if (copy_to_user(arg, cc, sizeof(*cc)))
- return -EFAULT;
+ if (cam->io == IO_READ)
+ sn9c102_empty_framequeues(cam);
+ else if (cam->module_param.force_munmap)
+ sn9c102_requeue_outqueue(cam);
- return 0;
- }
+ cam->stream = stream;
- case VIDIOC_G_CROP:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_crop crop = {
- .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
- };
+ return 0;
+}
- memcpy(&(crop.c), &(s->_rect), sizeof(struct v4l2_rect));
- if (copy_to_user(arg, &crop, sizeof(crop)))
- return -EFAULT;
+static int
+sn9c102_vidioc_enum_fmt(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_fmtdesc fmtd;
- return 0;
- }
+ if (copy_from_user(&fmtd, arg, sizeof(fmtd)))
+ return -EFAULT;
- case VIDIOC_S_CROP:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_crop crop;
- struct v4l2_rect* rect;
- struct v4l2_rect* bounds = &(s->cropcap.bounds);
- struct v4l2_pix_format* pix_format = &(s->pix_format);
- u8 scale;
- const enum sn9c102_stream_state stream = cam->stream;
- const u32 nbuffers = cam->nbuffers;
- u32 i;
- int err = 0;
-
- if (copy_from_user(&crop, arg, sizeof(crop)))
- return -EFAULT;
+ if (fmtd.index == 0) {
+ strcpy(fmtd.description, "bayer rgb");
+ fmtd.pixelformat = V4L2_PIX_FMT_SBGGR8;
+ } else if (fmtd.index == 1) {
+ strcpy(fmtd.description, "compressed");
+ fmtd.pixelformat = V4L2_PIX_FMT_SN9C10X;
+ fmtd.flags = V4L2_FMT_FLAG_COMPRESSED;
+ } else
+ return -EINVAL;
- rect = &(crop.c);
+ fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ memset(&fmtd.reserved, 0, sizeof(fmtd.reserved));
- if (crop.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
+ if (copy_to_user(arg, &fmtd, sizeof(fmtd)))
+ return -EFAULT;
- if (cam->module_param.force_munmap)
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_S_CROP failed. "
- "Unmap the buffers first.")
- return -EINVAL;
- }
+ return 0;
+}
- /* Preserve R,G or B origin */
- rect->left = (s->_rect.left & 1L) ?
- rect->left | 1L : rect->left & ~1L;
- rect->top = (s->_rect.top & 1L) ?
- rect->top | 1L : rect->top & ~1L;
-
- if (rect->width < 16)
- rect->width = 16;
- if (rect->height < 16)
- rect->height = 16;
- if (rect->width > bounds->width)
- rect->width = bounds->width;
- if (rect->height > bounds->height)
- rect->height = bounds->height;
- if (rect->left < bounds->left)
- rect->left = bounds->left;
- if (rect->top < bounds->top)
- rect->top = bounds->top;
- if (rect->left + rect->width > bounds->left + bounds->width)
- rect->left = bounds->left+bounds->width - rect->width;
- if (rect->top + rect->height > bounds->top + bounds->height)
- rect->top = bounds->top+bounds->height - rect->height;
-
- rect->width &= ~15L;
- rect->height &= ~15L;
-
- if (SN9C102_PRESERVE_IMGSCALE) {
- /* Calculate the actual scaling factor */
- u32 a, b;
- a = rect->width * rect->height;
- b = pix_format->width * pix_format->height;
- scale = b ? (u8)((a / b) < 4 ? 1 :
- ((a / b) < 16 ? 2 : 4)) : 1;
- } else
- scale = 1;
-
- if (cam->stream == STREAM_ON)
- if ((err = sn9c102_stream_interrupt(cam)))
- return err;
-
- if (copy_to_user(arg, &crop, sizeof(crop))) {
- cam->stream = stream;
- return -EFAULT;
- }
- if (cam->module_param.force_munmap || cam->io == IO_READ)
- sn9c102_release_buffers(cam);
+static int
+sn9c102_vidioc_g_fmt(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_format format;
+ struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format);
- err = sn9c102_set_crop(cam, rect);
- if (s->set_crop)
- err += s->set_crop(cam, rect);
- err += sn9c102_set_scale(cam, scale);
+ if (copy_from_user(&format, arg, sizeof(format)))
+ return -EFAULT;
- if (err) { /* atomic, no rollback in ioctl() */
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_CROP failed because of hardware "
- "problems. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -EIO;
- }
+ if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
- s->pix_format.width = rect->width/scale;
- s->pix_format.height = rect->height/scale;
- memcpy(&(s->_rect), rect, sizeof(*rect));
-
- if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
- nbuffers != sn9c102_request_buffers(cam, nbuffers,
- cam->io)) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_CROP failed because of not enough "
- "memory. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -ENOMEM;
- }
+ pfmt->bytesperline = (pfmt->pixelformat==V4L2_PIX_FMT_SN9C10X)
+ ? 0 : (pfmt->width * pfmt->priv) / 8;
+ pfmt->sizeimage = pfmt->height * ((pfmt->width*pfmt->priv)/8);
+ pfmt->field = V4L2_FIELD_NONE;
+ memcpy(&(format.fmt.pix), pfmt, sizeof(*pfmt));
- cam->stream = stream;
+ if (copy_to_user(arg, &format, sizeof(format)))
+ return -EFAULT;
- return 0;
- }
+ return 0;
+}
- case VIDIOC_ENUM_FMT:
- {
- struct v4l2_fmtdesc fmtd;
- if (copy_from_user(&fmtd, arg, sizeof(fmtd)))
- return -EFAULT;
+static int
+sn9c102_vidioc_try_s_fmt(struct sn9c102_device* cam, unsigned int cmd,
+ void __user * arg)
+{
+ struct sn9c102_sensor* s = cam->sensor;
+ struct v4l2_format format;
+ struct v4l2_pix_format* pix;
+ struct v4l2_pix_format* pfmt = &(s->pix_format);
+ struct v4l2_rect* bounds = &(s->cropcap.bounds);
+ struct v4l2_rect rect;
+ u8 scale;
+ const enum sn9c102_stream_state stream = cam->stream;
+ const u32 nbuffers = cam->nbuffers;
+ u32 i;
+ int err = 0;
- if (fmtd.index == 0) {
- strcpy(fmtd.description, "bayer rgb");
- fmtd.pixelformat = V4L2_PIX_FMT_SBGGR8;
- } else if (fmtd.index == 1) {
- strcpy(fmtd.description, "compressed");
- fmtd.pixelformat = V4L2_PIX_FMT_SN9C10X;
- fmtd.flags = V4L2_FMT_FLAG_COMPRESSED;
- } else
- return -EINVAL;
+ if (copy_from_user(&format, arg, sizeof(format)))
+ return -EFAULT;
- fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- memset(&fmtd.reserved, 0, sizeof(fmtd.reserved));
+ pix = &(format.fmt.pix);
- if (copy_to_user(arg, &fmtd, sizeof(fmtd)))
- return -EFAULT;
+ if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
- return 0;
+ memcpy(&rect, &(s->_rect), sizeof(rect));
+
+ { /* calculate the actual scaling factor */
+ u32 a, b;
+ a = rect.width * rect.height;
+ b = pix->width * pix->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
}
- case VIDIOC_G_FMT:
- {
- struct v4l2_format format;
- struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format);
+ rect.width = scale * pix->width;
+ rect.height = scale * pix->height;
- if (copy_from_user(&format, arg, sizeof(format)))
- return -EFAULT;
+ if (rect.width < 16)
+ rect.width = 16;
+ if (rect.height < 16)
+ rect.height = 16;
+ if (rect.width > bounds->left + bounds->width - rect.left)
+ rect.width = bounds->left + bounds->width - rect.left;
+ if (rect.height > bounds->top + bounds->height - rect.top)
+ rect.height = bounds->top + bounds->height - rect.top;
- if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
+ rect.width &= ~15L;
+ rect.height &= ~15L;
+
+ { /* adjust the scaling factor */
+ u32 a, b;
+ a = rect.width * rect.height;
+ b = pix->width * pix->height;
+ scale = b ? (u8)((a / b) < 4 ? 1 : ((a / b) < 16 ? 2 : 4)) : 1;
+ }
- pfmt->bytesperline = (pfmt->pixelformat==V4L2_PIX_FMT_SN9C10X)
- ? 0 : (pfmt->width * pfmt->priv) / 8;
- pfmt->sizeimage = pfmt->height * ((pfmt->width*pfmt->priv)/8);
- pfmt->field = V4L2_FIELD_NONE;
- memcpy(&(format.fmt.pix), pfmt, sizeof(*pfmt));
+ pix->width = rect.width / scale;
+ pix->height = rect.height / scale;
+ if (pix->pixelformat != V4L2_PIX_FMT_SN9C10X &&
+ pix->pixelformat != V4L2_PIX_FMT_SBGGR8)
+ pix->pixelformat = pfmt->pixelformat;
+ pix->priv = pfmt->priv; /* bpp */
+ pix->colorspace = pfmt->colorspace;
+ pix->bytesperline = (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ ? 0 : (pix->width * pix->priv) / 8;
+ pix->sizeimage = pix->height * ((pix->width * pix->priv) / 8);
+ pix->field = V4L2_FIELD_NONE;
+
+ if (cmd == VIDIOC_TRY_FMT) {
if (copy_to_user(arg, &format, sizeof(format)))
return -EFAULT;
-
return 0;
}
- case VIDIOC_TRY_FMT:
- case VIDIOC_S_FMT:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_format format;
- struct v4l2_pix_format* pix;
- struct v4l2_pix_format* pfmt = &(s->pix_format);
- struct v4l2_rect* bounds = &(s->cropcap.bounds);
- struct v4l2_rect rect;
- u8 scale;
- const enum sn9c102_stream_state stream = cam->stream;
- const u32 nbuffers = cam->nbuffers;
- u32 i;
- int err = 0;
-
- if (copy_from_user(&format, arg, sizeof(format)))
- return -EFAULT;
+ if (cam->module_param.force_munmap)
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_S_FMT failed. Unmap the "
+ "buffers first.");
+ return -EINVAL;
+ }
- pix = &(format.fmt.pix);
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
- if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
+ if (copy_to_user(arg, &format, sizeof(format))) {
+ cam->stream = stream;
+ return -EFAULT;
+ }
- memcpy(&rect, &(s->_rect), sizeof(rect));
+ if (cam->module_param.force_munmap || cam->io == IO_READ)
+ sn9c102_release_buffers(cam);
- { /* calculate the actual scaling factor */
- u32 a, b;
- a = rect.width * rect.height;
- b = pix->width * pix->height;
- scale = b ? (u8)((a / b) < 4 ? 1 :
- ((a / b) < 16 ? 2 : 4)) : 1;
- }
+ err += sn9c102_set_pix_format(cam, pix);
+ err += sn9c102_set_crop(cam, &rect);
+ if (s->set_pix_format)
+ err += s->set_pix_format(cam, pix);
+ if (s->set_crop)
+ err += s->set_crop(cam, &rect);
+ err += sn9c102_set_scale(cam, scale);
- rect.width = scale * pix->width;
- rect.height = scale * pix->height;
-
- if (rect.width < 16)
- rect.width = 16;
- if (rect.height < 16)
- rect.height = 16;
- if (rect.width > bounds->left + bounds->width - rect.left)
- rect.width = bounds->left + bounds->width - rect.left;
- if (rect.height > bounds->top + bounds->height - rect.top)
- rect.height = bounds->top + bounds->height - rect.top;
-
- rect.width &= ~15L;
- rect.height &= ~15L;
-
- { /* adjust the scaling factor */
- u32 a, b;
- a = rect.width * rect.height;
- b = pix->width * pix->height;
- scale = b ? (u8)((a / b) < 4 ? 1 :
- ((a / b) < 16 ? 2 : 4)) : 1;
- }
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_FMT failed because of hardware problems. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -EIO;
+ }
- pix->width = rect.width / scale;
- pix->height = rect.height / scale;
-
- if (pix->pixelformat != V4L2_PIX_FMT_SN9C10X &&
- pix->pixelformat != V4L2_PIX_FMT_SBGGR8)
- pix->pixelformat = pfmt->pixelformat;
- pix->priv = pfmt->priv; /* bpp */
- pix->colorspace = pfmt->colorspace;
- pix->bytesperline = (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
- ? 0 : (pix->width * pix->priv) / 8;
- pix->sizeimage = pix->height * ((pix->width * pix->priv) / 8);
- pix->field = V4L2_FIELD_NONE;
-
- if (cmd == VIDIOC_TRY_FMT) {
- if (copy_to_user(arg, &format, sizeof(format)))
- return -EFAULT;
- return 0;
- }
+ memcpy(pfmt, pix, sizeof(*pix));
+ memcpy(&(s->_rect), &rect, sizeof(rect));
- if (cam->module_param.force_munmap)
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_S_FMT failed. "
- "Unmap the buffers first.")
- return -EINVAL;
- }
+ if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
+ nbuffers != sn9c102_request_buffers(cam, nbuffers, cam->io)) {
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_FMT failed because of not enough memory. To "
+ "use the camera, close and open /dev/video%d again.",
+ cam->v4ldev->minor);
+ return -ENOMEM;
+ }
- if (cam->stream == STREAM_ON)
- if ((err = sn9c102_stream_interrupt(cam)))
- return err;
+ if (cam->io == IO_READ)
+ sn9c102_empty_framequeues(cam);
+ else if (cam->module_param.force_munmap)
+ sn9c102_requeue_outqueue(cam);
- if (copy_to_user(arg, &format, sizeof(format))) {
- cam->stream = stream;
- return -EFAULT;
- }
+ cam->stream = stream;
- if (cam->module_param.force_munmap || cam->io == IO_READ)
- sn9c102_release_buffers(cam);
-
- err += sn9c102_set_pix_format(cam, pix);
- err += sn9c102_set_crop(cam, &rect);
- if (s->set_pix_format)
- err += s->set_pix_format(cam, pix);
- if (s->set_crop)
- err += s->set_crop(cam, &rect);
- err += sn9c102_set_scale(cam, scale);
-
- if (err) { /* atomic, no rollback in ioctl() */
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_FMT failed because of hardware "
- "problems. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -EIO;
- }
+ return 0;
+}
- memcpy(pfmt, pix, sizeof(*pix));
- memcpy(&(s->_rect), &rect, sizeof(rect));
- if ((cam->module_param.force_munmap || cam->io == IO_READ) &&
- nbuffers != sn9c102_request_buffers(cam, nbuffers,
- cam->io)) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_FMT failed because of not enough "
- "memory. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -ENOMEM;
- }
+static int
+sn9c102_vidioc_g_jpegcomp(struct sn9c102_device* cam, void __user * arg)
+{
+ if (copy_to_user(arg, &cam->compression,
+ sizeof(cam->compression)))
+ return -EFAULT;
- cam->stream = stream;
+ return 0;
+}
- return 0;
- }
- case VIDIOC_G_JPEGCOMP:
- {
- if (copy_to_user(arg, &cam->compression,
- sizeof(cam->compression)))
- return -EFAULT;
+static int
+sn9c102_vidioc_s_jpegcomp(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_jpegcompression jc;
+ const enum sn9c102_stream_state stream = cam->stream;
+ int err = 0;
- return 0;
- }
+ if (copy_from_user(&jc, arg, sizeof(jc)))
+ return -EFAULT;
- case VIDIOC_S_JPEGCOMP:
- {
- struct v4l2_jpegcompression jc;
- const enum sn9c102_stream_state stream = cam->stream;
- int err = 0;
+ if (jc.quality != 0 && jc.quality != 1)
+ return -EINVAL;
- if (copy_from_user(&jc, arg, sizeof(jc)))
- return -EFAULT;
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
- if (jc.quality != 0 && jc.quality != 1)
- return -EINVAL;
+ err += sn9c102_set_compression(cam, &jc);
+ if (err) { /* atomic, no rollback in ioctl() */
+ cam->state |= DEV_MISCONFIGURED;
+ DBG(1, "VIDIOC_S_JPEGCOMP failed because of hardware "
+ "problems. To use the camera, close and open "
+ "/dev/video%d again.", cam->v4ldev->minor);
+ return -EIO;
+ }
- if (cam->stream == STREAM_ON)
- if ((err = sn9c102_stream_interrupt(cam)))
- return err;
+ cam->compression.quality = jc.quality;
- err += sn9c102_set_compression(cam, &jc);
- if (err) { /* atomic, no rollback in ioctl() */
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_JPEGCOMP failed because of hardware "
- "problems. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -EIO;
- }
+ cam->stream = stream;
- cam->compression.quality = jc.quality;
+ return 0;
+}
- cam->stream = stream;
- return 0;
- }
+static int
+sn9c102_vidioc_reqbufs(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_requestbuffers rb;
+ u32 i;
+ int err;
- case VIDIOC_REQBUFS:
- {
- struct v4l2_requestbuffers rb;
- u32 i;
- int err;
+ if (copy_from_user(&rb, arg, sizeof(rb)))
+ return -EFAULT;
- if (copy_from_user(&rb, arg, sizeof(rb)))
- return -EFAULT;
+ if (rb.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ rb.memory != V4L2_MEMORY_MMAP)
+ return -EINVAL;
- if (rb.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- rb.memory != V4L2_MEMORY_MMAP)
- return -EINVAL;
+ if (cam->io == IO_READ) {
+ DBG(3, "Close and open the device again to choose the mmap "
+ "I/O method");
+ return -EINVAL;
+ }
- if (cam->io == IO_READ) {
- DBG(3, "Close and open the device again to choose "
- "the mmap I/O method")
+ for (i = 0; i < cam->nbuffers; i++)
+ if (cam->frame[i].vma_use_count) {
+ DBG(3, "VIDIOC_REQBUFS failed. Previous buffers are "
+ "still mapped.");
return -EINVAL;
}
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_REQBUFS failed. "
- "Previous buffers are still mapped.")
- return -EINVAL;
- }
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
- if (cam->stream == STREAM_ON)
- if ((err = sn9c102_stream_interrupt(cam)))
- return err;
+ sn9c102_empty_framequeues(cam);
- sn9c102_empty_framequeues(cam);
+ sn9c102_release_buffers(cam);
+ if (rb.count)
+ rb.count = sn9c102_request_buffers(cam, rb.count, IO_MMAP);
+ if (copy_to_user(arg, &rb, sizeof(rb))) {
sn9c102_release_buffers(cam);
- if (rb.count)
- rb.count = sn9c102_request_buffers(cam, rb.count,
- IO_MMAP);
+ cam->io = IO_NONE;
+ return -EFAULT;
+ }
- if (copy_to_user(arg, &rb, sizeof(rb))) {
- sn9c102_release_buffers(cam);
- cam->io = IO_NONE;
- return -EFAULT;
- }
+ cam->io = rb.count ? IO_MMAP : IO_NONE;
- cam->io = rb.count ? IO_MMAP : IO_NONE;
+ return 0;
+}
- return 0;
- }
- case VIDIOC_QUERYBUF:
- {
- struct v4l2_buffer b;
+static int
+sn9c102_vidioc_querybuf(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_buffer b;
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- b.index >= cam->nbuffers || cam->io != IO_MMAP)
- return -EINVAL;
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b.index >= cam->nbuffers || cam->io != IO_MMAP)
+ return -EINVAL;
- memcpy(&b, &cam->frame[b.index].buf, sizeof(b));
+ memcpy(&b, &cam->frame[b.index].buf, sizeof(b));
- if (cam->frame[b.index].vma_use_count)
- b.flags |= V4L2_BUF_FLAG_MAPPED;
+ if (cam->frame[b.index].vma_use_count)
+ b.flags |= V4L2_BUF_FLAG_MAPPED;
- if (cam->frame[b.index].state == F_DONE)
- b.flags |= V4L2_BUF_FLAG_DONE;
- else if (cam->frame[b.index].state != F_UNUSED)
- b.flags |= V4L2_BUF_FLAG_QUEUED;
+ if (cam->frame[b.index].state == F_DONE)
+ b.flags |= V4L2_BUF_FLAG_DONE;
+ else if (cam->frame[b.index].state != F_UNUSED)
+ b.flags |= V4L2_BUF_FLAG_QUEUED;
- if (copy_to_user(arg, &b, sizeof(b)))
- return -EFAULT;
+ if (copy_to_user(arg, &b, sizeof(b)))
+ return -EFAULT;
- return 0;
- }
+ return 0;
+}
- case VIDIOC_QBUF:
- {
- struct v4l2_buffer b;
- unsigned long lock_flags;
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
+static int
+sn9c102_vidioc_qbuf(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_buffer b;
+ unsigned long lock_flags;
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- b.index >= cam->nbuffers || cam->io != IO_MMAP)
- return -EINVAL;
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
- if (cam->frame[b.index].state != F_UNUSED)
- return -EINVAL;
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b.index >= cam->nbuffers || cam->io != IO_MMAP)
+ return -EINVAL;
- cam->frame[b.index].state = F_QUEUED;
+ if (cam->frame[b.index].state != F_UNUSED)
+ return -EINVAL;
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- list_add_tail(&cam->frame[b.index].frame, &cam->inqueue);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+ cam->frame[b.index].state = F_QUEUED;
- PDBGG("Frame #%lu queued", (unsigned long)b.index)
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ list_add_tail(&cam->frame[b.index].frame, &cam->inqueue);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
- return 0;
- }
+ PDBGG("Frame #%lu queued", (unsigned long)b.index);
- case VIDIOC_DQBUF:
- {
- struct v4l2_buffer b;
- struct sn9c102_frame_t *f;
- unsigned long lock_flags;
- int err = 0;
+ return 0;
+}
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io!= IO_MMAP)
+static int
+sn9c102_vidioc_dqbuf(struct sn9c102_device* cam, struct file* filp,
+ void __user * arg)
+{
+ struct v4l2_buffer b;
+ struct sn9c102_frame_t *f;
+ unsigned long lock_flags;
+ int err = 0;
+
+ if (copy_from_user(&b, arg, sizeof(b)))
+ return -EFAULT;
+
+ if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
+
+ if (list_empty(&cam->outqueue)) {
+ if (cam->stream == STREAM_OFF)
return -EINVAL;
+ if (filp->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+ err = wait_event_interruptible
+ ( cam->wait_frame,
+ (!list_empty(&cam->outqueue)) ||
+ (cam->state & DEV_DISCONNECTED) ||
+ (cam->state & DEV_MISCONFIGURED) );
+ if (err)
+ return err;
+ if (cam->state & DEV_DISCONNECTED)
+ return -ENODEV;
+ if (cam->state & DEV_MISCONFIGURED)
+ return -EIO;
+ }
- if (list_empty(&cam->outqueue)) {
- if (cam->stream == STREAM_OFF)
- return -EINVAL;
- if (filp->f_flags & O_NONBLOCK)
- return -EAGAIN;
- err = wait_event_interruptible
- ( cam->wait_frame,
- (!list_empty(&cam->outqueue)) ||
- (cam->state & DEV_DISCONNECTED) ||
- (cam->state & DEV_MISCONFIGURED) );
- if (err)
- return err;
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- if (cam->state & DEV_MISCONFIGURED)
- return -EIO;
- }
+ spin_lock_irqsave(&cam->queue_lock, lock_flags);
+ f = list_entry(cam->outqueue.next, struct sn9c102_frame_t, frame);
+ list_del(cam->outqueue.next);
+ spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- f = list_entry(cam->outqueue.next, struct sn9c102_frame_t,
- frame);
- list_del(cam->outqueue.next);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
+ f->state = F_UNUSED;
- f->state = F_UNUSED;
+ memcpy(&b, &f->buf, sizeof(b));
+ if (f->vma_use_count)
+ b.flags |= V4L2_BUF_FLAG_MAPPED;
- memcpy(&b, &f->buf, sizeof(b));
- if (f->vma_use_count)
- b.flags |= V4L2_BUF_FLAG_MAPPED;
+ if (copy_to_user(arg, &b, sizeof(b)))
+ return -EFAULT;
- if (copy_to_user(arg, &b, sizeof(b)))
- return -EFAULT;
+ PDBGG("Frame #%lu dequeued", (unsigned long)f->buf.index);
- PDBGG("Frame #%lu dequeued", (unsigned long)f->buf.index)
+ return 0;
+}
- return 0;
- }
- case VIDIOC_STREAMON:
- {
- int type;
+static int
+sn9c102_vidioc_streamon(struct sn9c102_device* cam, void __user * arg)
+{
+ int type;
- if (copy_from_user(&type, arg, sizeof(type)))
- return -EFAULT;
+ if (copy_from_user(&type, arg, sizeof(type)))
+ return -EFAULT;
- if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
- return -EINVAL;
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
- if (list_empty(&cam->inqueue))
- return -EINVAL;
+ if (list_empty(&cam->inqueue))
+ return -EINVAL;
- cam->stream = STREAM_ON;
+ cam->stream = STREAM_ON;
- DBG(3, "Stream on")
+ DBG(3, "Stream on");
- return 0;
- }
+ return 0;
+}
- case VIDIOC_STREAMOFF:
- {
- int type, err;
- if (copy_from_user(&type, arg, sizeof(type)))
- return -EFAULT;
+static int
+sn9c102_vidioc_streamoff(struct sn9c102_device* cam, void __user * arg)
+{
+ int type, err;
- if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
- return -EINVAL;
+ if (copy_from_user(&type, arg, sizeof(type)))
+ return -EFAULT;
- if (cam->stream == STREAM_ON)
- if ((err = sn9c102_stream_interrupt(cam)))
- return err;
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
+ return -EINVAL;
- sn9c102_empty_framequeues(cam);
+ if (cam->stream == STREAM_ON)
+ if ((err = sn9c102_stream_interrupt(cam)))
+ return err;
- DBG(3, "Stream off")
+ sn9c102_empty_framequeues(cam);
- return 0;
- }
+ DBG(3, "Stream off");
- case VIDIOC_G_PARM:
- {
- struct v4l2_streamparm sp;
+ return 0;
+}
- if (copy_from_user(&sp, arg, sizeof(sp)))
- return -EFAULT;
- if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
+static int
+sn9c102_vidioc_g_parm(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_streamparm sp;
+
+ if (copy_from_user(&sp, arg, sizeof(sp)))
+ return -EFAULT;
+
+ if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ sp.parm.capture.extendedmode = 0;
+ sp.parm.capture.readbuffers = cam->nreadbuffers;
+
+ if (copy_to_user(arg, &sp, sizeof(sp)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int
+sn9c102_vidioc_s_parm(struct sn9c102_device* cam, void __user * arg)
+{
+ struct v4l2_streamparm sp;
+
+ if (copy_from_user(&sp, arg, sizeof(sp)))
+ return -EFAULT;
+
+ if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ sp.parm.capture.extendedmode = 0;
- sp.parm.capture.extendedmode = 0;
+ if (sp.parm.capture.readbuffers == 0)
sp.parm.capture.readbuffers = cam->nreadbuffers;
- if (copy_to_user(arg, &sp, sizeof(sp)))
- return -EFAULT;
+ if (sp.parm.capture.readbuffers > SN9C102_MAX_FRAMES)
+ sp.parm.capture.readbuffers = SN9C102_MAX_FRAMES;
- return 0;
- }
+ if (copy_to_user(arg, &sp, sizeof(sp)))
+ return -EFAULT;
- case VIDIOC_S_PARM_OLD:
- case VIDIOC_S_PARM:
- {
- struct v4l2_streamparm sp;
+ cam->nreadbuffers = sp.parm.capture.readbuffers;
- if (copy_from_user(&sp, arg, sizeof(sp)))
- return -EFAULT;
+ return 0;
+}
- if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- sp.parm.capture.extendedmode = 0;
+static int sn9c102_ioctl_v4l2(struct inode* inode, struct file* filp,
+ unsigned int cmd, void __user * arg)
+{
+ struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
+
+ switch (cmd) {
+
+ case VIDIOC_QUERYCAP:
+ return sn9c102_vidioc_querycap(cam, arg);
- if (sp.parm.capture.readbuffers == 0)
- sp.parm.capture.readbuffers = cam->nreadbuffers;
+ case VIDIOC_ENUMINPUT:
+ return sn9c102_vidioc_enuminput(cam, arg);
- if (sp.parm.capture.readbuffers > SN9C102_MAX_FRAMES)
- sp.parm.capture.readbuffers = SN9C102_MAX_FRAMES;
+ case VIDIOC_G_INPUT:
+ case VIDIOC_S_INPUT:
+ return sn9c102_vidioc_gs_input(cam, arg);
- if (copy_to_user(arg, &sp, sizeof(sp)))
- return -EFAULT;
+ case VIDIOC_QUERYCTRL:
+ return sn9c102_vidioc_query_ctrl(cam, arg);
- cam->nreadbuffers = sp.parm.capture.readbuffers;
+ case VIDIOC_G_CTRL:
+ return sn9c102_vidioc_g_ctrl(cam, arg);
- return 0;
- }
+ case VIDIOC_S_CTRL_OLD:
+ case VIDIOC_S_CTRL:
+ return sn9c102_vidioc_s_ctrl(cam, arg);
+
+ case VIDIOC_CROPCAP_OLD:
+ case VIDIOC_CROPCAP:
+ return sn9c102_vidioc_cropcap(cam, arg);
+
+ case VIDIOC_G_CROP:
+ return sn9c102_vidioc_g_crop(cam, arg);
+
+ case VIDIOC_S_CROP:
+ return sn9c102_vidioc_s_crop(cam, arg);
+
+ case VIDIOC_ENUM_FMT:
+ return sn9c102_vidioc_enum_fmt(cam, arg);
+
+ case VIDIOC_G_FMT:
+ return sn9c102_vidioc_g_fmt(cam, arg);
+
+ case VIDIOC_TRY_FMT:
+ case VIDIOC_S_FMT:
+ return sn9c102_vidioc_try_s_fmt(cam, cmd, arg);
+
+ case VIDIOC_G_JPEGCOMP:
+ return sn9c102_vidioc_g_jpegcomp(cam, arg);
+
+ case VIDIOC_S_JPEGCOMP:
+ return sn9c102_vidioc_s_jpegcomp(cam, arg);
+
+ case VIDIOC_REQBUFS:
+ return sn9c102_vidioc_reqbufs(cam, arg);
+
+ case VIDIOC_QUERYBUF:
+ return sn9c102_vidioc_querybuf(cam, arg);
+
+ case VIDIOC_QBUF:
+ return sn9c102_vidioc_qbuf(cam, arg);
+
+ case VIDIOC_DQBUF:
+ return sn9c102_vidioc_dqbuf(cam, filp, arg);
+
+ case VIDIOC_STREAMON:
+ return sn9c102_vidioc_streamon(cam, arg);
+
+ case VIDIOC_STREAMOFF:
+ return sn9c102_vidioc_streamoff(cam, arg);
+
+ case VIDIOC_G_PARM:
+ return sn9c102_vidioc_g_parm(cam, arg);
+
+ case VIDIOC_S_PARM_OLD:
+ case VIDIOC_S_PARM:
+ return sn9c102_vidioc_s_parm(cam, arg);
case VIDIOC_G_STD:
case VIDIOC_S_STD:
@@ -2499,17 +2659,20 @@ static int sn9c102_ioctl(struct inode* inode, struct file* filp,
return -ERESTARTSYS;
if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
+ DBG(1, "Device not present");
up(&cam->fileop_sem);
return -ENODEV;
}
if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
+ DBG(1, "The camera is misconfigured. Close and open it "
+ "again.");
up(&cam->fileop_sem);
return -EIO;
}
+ V4LDBG(3, "sn9c102", cmd);
+
err = sn9c102_ioctl_v4l2(inode, filp, cmd, (void __user *)arg);
up(&cam->fileop_sem);
@@ -2517,9 +2680,10 @@ static int sn9c102_ioctl(struct inode* inode, struct file* filp,
return err;
}
+/*****************************************************************************/
static struct file_operations sn9c102_fops = {
- .owner = THIS_MODULE,
+ .owner = THIS_MODULE,
.open = sn9c102_open,
.release = sn9c102_release,
.ioctl = sn9c102_ioctl,
@@ -2538,36 +2702,22 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
struct usb_device *udev = interface_to_usbdev(intf);
struct sn9c102_device* cam;
static unsigned int dev_nr = 0;
- unsigned int i, n;
+ unsigned int i;
int err = 0, r;
- n = ARRAY_SIZE(sn9c102_id_table);
- for (i = 0; i < n-1; i++)
- if (le16_to_cpu(udev->descriptor.idVendor) ==
- sn9c102_id_table[i].idVendor &&
- le16_to_cpu(udev->descriptor.idProduct) ==
- sn9c102_id_table[i].idProduct)
- break;
- if (i == n-1)
- return -ENODEV;
-
- if (!(cam = kmalloc(sizeof(struct sn9c102_device), GFP_KERNEL)))
+ if (!(cam = kzalloc(sizeof(struct sn9c102_device), GFP_KERNEL)))
return -ENOMEM;
- memset(cam, 0, sizeof(*cam));
cam->usbdev = udev;
- memcpy(&cam->dev, &udev->dev, sizeof(struct device));
-
- if (!(cam->control_buffer = kmalloc(8, GFP_KERNEL))) {
- DBG(1, "kmalloc() failed")
+ if (!(cam->control_buffer = kzalloc(8, GFP_KERNEL))) {
+ DBG(1, "kmalloc() failed");
err = -ENOMEM;
goto fail;
}
- memset(cam->control_buffer, 0, 8);
if (!(cam->v4ldev = video_device_alloc())) {
- DBG(1, "video_device_alloc() failed")
+ DBG(1, "video_device_alloc() failed");
err = -ENOMEM;
goto fail;
}
@@ -2577,25 +2727,22 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
r = sn9c102_read_reg(cam, 0x00);
if (r < 0 || r != 0x10) {
DBG(1, "Sorry, this is not a SN9C10x based camera "
- "(vid/pid 0x%04X/0x%04X)",
- sn9c102_id_table[i].idVendor,sn9c102_id_table[i].idProduct)
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
err = -ENODEV;
goto fail;
}
- cam->bridge = (sn9c102_id_table[i].idProduct & 0xffc0) == 0x6080 ?
+ cam->bridge = (id->idProduct & 0xffc0) == 0x6080 ?
BRIDGE_SN9C103 : BRIDGE_SN9C102;
switch (cam->bridge) {
case BRIDGE_SN9C101:
case BRIDGE_SN9C102:
DBG(2, "SN9C10[12] PC Camera Controller detected "
- "(vid/pid 0x%04X/0x%04X)", sn9c102_id_table[i].idVendor,
- sn9c102_id_table[i].idProduct)
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
break;
case BRIDGE_SN9C103:
DBG(2, "SN9C103 PC Camera Controller detected "
- "(vid/pid 0x%04X/0x%04X)", sn9c102_id_table[i].idVendor,
- sn9c102_id_table[i].idProduct)
+ "(vid/pid 0x%04X/0x%04X)", id->idVendor, id->idProduct);
break;
}
@@ -2606,24 +2753,24 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
}
if (!err && cam->sensor) {
- DBG(2, "%s image sensor detected", cam->sensor->name)
+ DBG(2, "%s image sensor detected", cam->sensor->name);
DBG(3, "Support for %s maintained by %s",
- cam->sensor->name, cam->sensor->maintainer)
+ cam->sensor->name, cam->sensor->maintainer);
} else {
- DBG(1, "No supported image sensor detected")
+ DBG(1, "No supported image sensor detected");
err = -ENODEV;
goto fail;
}
if (sn9c102_init(cam)) {
- DBG(1, "Initialization failed. I will retry on open().")
+ DBG(1, "Initialization failed. I will retry on open().");
cam->state |= DEV_MISCONFIGURED;
}
strcpy(cam->v4ldev->name, "SN9C10x PC Camera");
cam->v4ldev->owner = THIS_MODULE;
cam->v4ldev->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES;
- cam->v4ldev->hardware = VID_HARDWARE_SN9C102;
+ cam->v4ldev->hardware = 0;
cam->v4ldev->fops = &sn9c102_fops;
cam->v4ldev->minor = video_nr[dev_nr];
cam->v4ldev->release = video_device_release;
@@ -2634,23 +2781,25 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER,
video_nr[dev_nr]);
if (err) {
- DBG(1, "V4L2 device registration failed")
+ DBG(1, "V4L2 device registration failed");
if (err == -ENFILE && video_nr[dev_nr] == -1)
- DBG(1, "Free /dev/videoX node not found")
+ DBG(1, "Free /dev/videoX node not found");
video_nr[dev_nr] = -1;
dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0;
up(&cam->dev_sem);
goto fail;
}
- DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor)
+ DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor);
cam->module_param.force_munmap = force_munmap[dev_nr];
dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0;
+#ifdef CONFIG_VIDEO_ADV_DEBUG
sn9c102_create_sysfs(cam);
- DBG(2, "Optional device control through 'sysfs' interface ready")
+ DBG(2, "Optional device control through 'sysfs' interface ready");
+#endif
usb_set_intfdata(intf, cam);
@@ -2680,14 +2829,14 @@ static void sn9c102_usb_disconnect(struct usb_interface* intf)
down(&cam->dev_sem);
- DBG(2, "Disconnecting %s...", cam->v4ldev->name)
+ DBG(2, "Disconnecting %s...", cam->v4ldev->name);
wake_up_interruptible_all(&cam->open);
if (cam->users) {
DBG(2, "Device /dev/video%d is open! Deregistration and "
"memory deallocation are deferred on close.",
- cam->v4ldev->minor)
+ cam->v4ldev->minor);
cam->state |= DEV_MISCONFIGURED;
sn9c102_stop_transfer(cam);
cam->state |= DEV_DISCONNECTED;
@@ -2720,11 +2869,11 @@ static int __init sn9c102_module_init(void)
{
int err = 0;
- KDBG(2, SN9C102_MODULE_NAME " v" SN9C102_MODULE_VERSION)
- KDBG(3, SN9C102_MODULE_AUTHOR)
+ KDBG(2, SN9C102_MODULE_NAME " v" SN9C102_MODULE_VERSION);
+ KDBG(3, SN9C102_MODULE_AUTHOR);
if ((err = usb_register(&sn9c102_usb_driver)))
- KDBG(1, "usb_register() failed")
+ KDBG(1, "usb_register() failed");
return err;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 01:22:21 +0000