/*
- cx231xx-core.c - driver for Conexant Cx23100/101/102 USB video capture devices
+ cx231xx-core.c - driver for Conexant Cx23100/101/102
+ USB video capture devices
Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
- Based on em28xx driver
+ Based on em28xx driver
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
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/vmalloc.h>
#include <media/v4l2-common.h>
/* #define ENABLE_DEBUG_ISOC_FRAMES */
static unsigned int core_debug;
-module_param(core_debug,int,0644);
-MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
+module_param(core_debug, int, 0644);
+MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
#define cx231xx_coredbg(fmt, arg...) do {\
if (core_debug) \
dev->name, __func__ , ##arg); } while (0)
static unsigned int reg_debug;
-module_param(reg_debug,int,0644);
-MODULE_PARM_DESC(reg_debug,"enable debug messages [URB reg]");
+module_param(reg_debug, int, 0644);
+MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
#define cx231xx_regdbg(fmt, arg...) do {\
if (reg_debug) \
module_param(alt, int, 0644);
MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
-/* FIXME */
#define cx231xx_isocdbg(fmt, arg...) do {\
if (core_debug) \
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __func__ , ##arg); } while (0)
-
-
-/************************************************************************************
-* Device control list functions *
-*************************************************************************************/
+/*****************************************************************
+* Device control list functions *
+******************************************************************/
static LIST_HEAD(cx231xx_devlist);
static DEFINE_MUTEX(cx231xx_devlist_mutex);
-struct cx231xx *cx231xx_get_device(int minor,
- enum v4l2_buf_type *fh_type,
- int *has_radio)
-{
- struct cx231xx *h, *dev = NULL;
-
- *fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- *has_radio = 0;
-
- mutex_lock(&cx231xx_devlist_mutex);
- list_for_each_entry(h, &cx231xx_devlist, devlist) {
- if (h->vdev->minor == minor)
- dev = h;
- if (h->vbi_dev->minor == minor) {
- dev = h;
- *fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
- }
- if (h->radio_dev &&
- h->radio_dev->minor == minor) {
- dev = h;
- *has_radio = 1;
- }
- }
- mutex_unlock(&cx231xx_devlist_mutex);
-
- return dev;
-}
-
/*
* cx231xx_realease_resources()
* unregisters the v4l2,i2c and usb devices
mutex_unlock(&cx231xx_devlist_mutex);
};
-
-
-
static LIST_HEAD(cx231xx_extension_devlist);
static DEFINE_MUTEX(cx231xx_extension_devlist_lock);
if (dev)
ops->init(dev);
}
- cx231xx_info("Cx231xx: Initialized (%s) extension\n", ops->name);
+ printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
mutex_unlock(&cx231xx_extension_devlist_lock);
mutex_unlock(&cx231xx_devlist_mutex);
return 0;
}
mutex_lock(&cx231xx_extension_devlist_lock);
- cx231xx_info("Cx231xx: Removed (%s) extension\n", ops->name);
+ printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
list_del(&ops->next);
mutex_unlock(&cx231xx_extension_devlist_lock);
mutex_unlock(&cx231xx_devlist_mutex);
}
EXPORT_SYMBOL(cx231xx_unregister_extension);
-
void cx231xx_init_extension(struct cx231xx *dev)
{
struct cx231xx_ops *ops = NULL;
mutex_unlock(&cx231xx_extension_devlist_lock);
}
-/************************************************************************************
-* U S B related functions *
-*************************************************************************************/
+/****************************************************************
+* U S B related functions *
+*****************************************************************/
int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
- struct cx231xx_i2c_xfer_data *req_data)
+ struct cx231xx_i2c_xfer_data *req_data)
{
- int status = 0;
- struct cx231xx *dev = i2c_bus->dev;
- VENDOR_REQUEST_IN ven_req;
-
- u8 saddr_len = 0;
- u8 _i2c_period = 0;
- u8 _i2c_nostop = 0;
- u8 _i2c_reserve = 0;
-
- /* Get the I2C period, nostop and reserve parameters */
- _i2c_period = i2c_bus->i2c_period;
- _i2c_nostop = i2c_bus->i2c_nostop;
- _i2c_reserve = i2c_bus->i2c_reserve;
-
- saddr_len = req_data->saddr_len;
-
- /* Set wValue */
- if(saddr_len == 1) /* need check saddr_len == 0 */
- ven_req.wValue = req_data->dev_addr<<9|_i2c_period<<4|saddr_len<<2|
- _i2c_nostop<<1|I2C_SYNC|_i2c_reserve<<6;
- else
- ven_req.wValue = req_data->dev_addr<<9|_i2c_period<<4|saddr_len<<2|
- _i2c_nostop<<1|I2C_SYNC|_i2c_reserve<<6;
-
- /* set channel number */
- if(req_data->direction & I2C_M_RD)
- ven_req.bRequest = i2c_bus->nr + 4; /* channel number, for read,
- spec required channel_num +4 */
- else
- ven_req.bRequest = i2c_bus->nr; /* channel number, */
-
- /* set index value */
- switch(saddr_len){
- case 0:
- ven_req.wIndex = 0; /* need check */
- break;
- case 1:
- ven_req.wIndex = (req_data->saddr_dat & 0xff);
- break;
- case 2:
- ven_req.wIndex = req_data->saddr_dat;
- break;
- }
-
- /* set wLength value */
- ven_req.wLength = req_data->buf_size;
-
- /* set bData value */
- ven_req.bData = 0;
-
- /* set the direction */
- if(req_data->direction){
- ven_req.direction = USB_DIR_IN;
- memset(req_data->p_buffer, 0x00, ven_req.wLength);
- }
- else
- ven_req.direction = USB_DIR_OUT;
-
- /* set the buffer for read / write */
- ven_req.pBuff = req_data->p_buffer;
-
-
-
- /* call common vendor command request */
- status = cx231xx_send_vendor_cmd(dev, &ven_req);
- if (status < 0) {
- cx231xx_info("UsbInterface::sendCommand, output buffer failed with status -%d\n", status);
- }
-
- return status;
-}
+ int status = 0;
+ struct cx231xx *dev = i2c_bus->dev;
+ struct VENDOR_REQUEST_IN ven_req;
+
+ u8 saddr_len = 0;
+ u8 _i2c_period = 0;
+ u8 _i2c_nostop = 0;
+ u8 _i2c_reserve = 0;
+
+ /* Get the I2C period, nostop and reserve parameters */
+ _i2c_period = i2c_bus->i2c_period;
+ _i2c_nostop = i2c_bus->i2c_nostop;
+ _i2c_reserve = i2c_bus->i2c_reserve;
+
+ saddr_len = req_data->saddr_len;
+
+ /* Set wValue */
+ if (saddr_len == 1) /* need check saddr_len == 0 */
+ ven_req.wValue =
+ req_data->
+ dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
+ _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
+ else
+ ven_req.wValue =
+ req_data->
+ dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
+ _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
+
+ /* set channel number */
+ if (req_data->direction & I2C_M_RD) {
+ /* channel number, for read,spec required channel_num +4 */
+ ven_req.bRequest = i2c_bus->nr + 4;
+ } else
+ ven_req.bRequest = i2c_bus->nr; /* channel number, */
+
+ /* set index value */
+ switch (saddr_len) {
+ case 0:
+ ven_req.wIndex = 0; /* need check */
+ break;
+ case 1:
+ ven_req.wIndex = (req_data->saddr_dat & 0xff);
+ break;
+ case 2:
+ ven_req.wIndex = req_data->saddr_dat;
+ break;
+ }
+ /* set wLength value */
+ ven_req.wLength = req_data->buf_size;
+
+ /* set bData value */
+ ven_req.bData = 0;
+
+ /* set the direction */
+ if (req_data->direction) {
+ ven_req.direction = USB_DIR_IN;
+ memset(req_data->p_buffer, 0x00, ven_req.wLength);
+ } else
+ ven_req.direction = USB_DIR_OUT;
+
+ /* set the buffer for read / write */
+ ven_req.pBuff = req_data->p_buffer;
+
+
+ /* call common vendor command request */
+ status = cx231xx_send_vendor_cmd(dev, &ven_req);
+ if (status < 0) {
+ cx231xx_info
+ ("UsbInterface::sendCommand, failed with status -%d\n",
+ status);
+ }
+
+ return status;
+}
EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
+
/*
* cx231xx_read_ctrl_reg()
* reads data from the usb device specifying bRequest and wValue
*/
int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
- char *buf, int len)
+ char *buf, int len)
{
- u8 val = 0;
+ u8 val = 0;
int ret;
int pipe = usb_rcvctrlpipe(dev->udev, 0);
if (len > URB_MAX_CTRL_SIZE)
return -EINVAL;
- switch(len)
- {
- case 1:
- val = ENABLE_ONE_BYTE;
- break;
- case 2:
- val = ENABLE_TWE_BYTE;
- break;
- case 3:
- val = ENABLE_THREE_BYTE;
- break;
- case 4:
- val = ENABLE_FOUR_BYTE;
- break;
- default:
- val = 0xFF; /* invalid option */
- }
-
- if(val == 0xFF)
- return -EINVAL;
+ switch (len) {
+ case 1:
+ val = ENABLE_ONE_BYTE;
+ break;
+ case 2:
+ val = ENABLE_TWE_BYTE;
+ break;
+ case 3:
+ val = ENABLE_THREE_BYTE;
+ break;
+ case 4:
+ val = ENABLE_FOUR_BYTE;
+ break;
+ default:
+ val = 0xFF; /* invalid option */
+ }
+
+ if (val == 0xFF)
+ return -EINVAL;
if (reg_debug) {
cx231xx_isocdbg("(pipe 0x%08x): "
- "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
- pipe,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- req, 0, val,
- reg & 0xff, reg >> 8,
- len & 0xff, len >> 8);
+ "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
+ pipe,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ req, 0, val,
+ reg & 0xff, reg >> 8, len & 0xff, len >> 8);
}
- /* mutex_lock(&dev->ctrl_urb_lock); */
+ mutex_lock(&dev->ctrl_urb_lock);
ret = usb_control_msg(dev->udev, pipe, req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
val, reg, dev->urb_buf, len, HZ);
if (len)
memcpy(buf, dev->urb_buf, len);
- /* mutex_unlock(&dev->ctrl_urb_lock); */
+ mutex_unlock(&dev->ctrl_urb_lock);
if (reg_debug) {
int byte;
return ret;
}
-
-int cx231xx_send_vendor_cmd(struct cx231xx *dev, VENDOR_REQUEST_IN *ven_req)
+int cx231xx_send_vendor_cmd(struct cx231xx *dev,
+ struct VENDOR_REQUEST_IN *ven_req)
{
- int ret;
+ int ret;
int pipe = 0;
if (dev->state & DEV_DISCONNECTED)
if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
return -EINVAL;
- if(ven_req->direction)
- pipe = usb_rcvctrlpipe(dev->udev, 0);
- else
- pipe = usb_sndctrlpipe(dev->udev, 0);
-
+ if (ven_req->direction)
+ pipe = usb_rcvctrlpipe(dev->udev, 0);
+ else
+ pipe = usb_sndctrlpipe(dev->udev, 0);
if (reg_debug) {
int byte;
cx231xx_isocdbg("(pipe 0x%08x): "
- "OUT: %02x %02x %02x %04x %04x %04x >>>",
- pipe,
- ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- ven_req->bRequest, 0, ven_req->wValue,
- ven_req->wIndex,
- ven_req->wLength);
+ "OUT: %02x %02x %02x %04x %04x %04x >>>",
+ pipe,
+ ven_req->
+ direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ ven_req->bRequest, 0, ven_req->wValue,
+ ven_req->wIndex, ven_req->wLength);
for (byte = 0; byte < ven_req->wLength; byte++)
- cx231xx_isocdbg(" %02x", (unsigned char)ven_req->pBuff[byte]);
+ cx231xx_isocdbg(" %02x",
+ (unsigned char)ven_req->pBuff[byte]);
cx231xx_isocdbg("\n");
}
- /* mutex_lock(&dev->ctrl_urb_lock); */
+ mutex_lock(&dev->ctrl_urb_lock);
ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
- ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- ven_req->wValue, ven_req->wIndex, ven_req->pBuff, ven_req->wLength, HZ);
- /* mutex_unlock(&dev->ctrl_urb_lock); */
+ ven_req->
+ direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ ven_req->wValue, ven_req->wIndex, ven_req->pBuff,
+ ven_req->wLength, HZ);
+ mutex_unlock(&dev->ctrl_urb_lock);
return ret;
}
* sends data to the usb device, specifying bRequest
*/
int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
- int len)
+ int len)
{
- u8 val = 0;
+ u8 val = 0;
int ret;
int pipe = usb_sndctrlpipe(dev->udev, 0);
if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
return -EINVAL;
- switch(len)
- {
- case 1:
- val = ENABLE_ONE_BYTE;
- break;
- case 2:
- val = ENABLE_TWE_BYTE;
- break;
- case 3:
- val = ENABLE_THREE_BYTE;
- break;
- case 4:
- val = ENABLE_FOUR_BYTE;
- break;
- default:
- val = 0xFF; /* invalid option */
- }
-
- if(val == 0xFF)
- return -EINVAL;
+ switch (len) {
+ case 1:
+ val = ENABLE_ONE_BYTE;
+ break;
+ case 2:
+ val = ENABLE_TWE_BYTE;
+ break;
+ case 3:
+ val = ENABLE_THREE_BYTE;
+ break;
+ case 4:
+ val = ENABLE_FOUR_BYTE;
+ break;
+ default:
+ val = 0xFF; /* invalid option */
+ }
+
+ if (val == 0xFF)
+ return -EINVAL;
if (reg_debug) {
int byte;
"OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
pipe,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- req, 0, val,
- reg & 0xff, reg >> 8,
- len & 0xff, len >> 8);
+ req, 0, val, reg & 0xff,
+ reg >> 8, len & 0xff, len >> 8);
for (byte = 0; byte < len; byte++)
cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
cx231xx_isocdbg("\n");
}
- /* mutex_lock(&dev->ctrl_urb_lock); */
+ mutex_lock(&dev->ctrl_urb_lock);
memcpy(dev->urb_buf, buf, len);
ret = usb_control_msg(dev->udev, pipe, req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
val, reg, dev->urb_buf, len, HZ);
- /* mutex_unlock(&dev->ctrl_urb_lock); */
+ mutex_unlock(&dev->ctrl_urb_lock);
return ret;
}
-
-/************************************************************************************
-* USB Alternate Setting functions *
-*************************************************************************************/
+/****************************************************************
+* USB Alternate Setting functions *
+*****************************************************************/
int cx231xx_set_video_alternate(struct cx231xx *dev)
{
int errCode, prev_alt = dev->video_mode.alt;
unsigned int min_pkt_size = dev->width * 2 + 4;
- u32 usb_interface_index = 0;
+ u32 usb_interface_index = 0;
/* When image size is bigger than a certain value,
the frame size should be increased, otherwise, only
if (dev->width * 2 * dev->height > 720 * 240 * 2)
min_pkt_size *= 2;
- if(dev->width > 360) {
- /* resolutions: 720,704,640 */
- dev->video_mode.alt = 3;
- } else if(dev->width > 180) {
- /* resolutions: 360,352,320,240 */
- dev->video_mode.alt = 2;
- } else if(dev->width > 0) {
- /* resolutions: 180,176,160,128,88 */
- dev->video_mode.alt = 1;
- } else {
- /* Change to alt0 BULK to release USB bandwidth */
- dev->video_mode.alt = 0;
- }
-
- /* Get the correct video interface Index */
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.video_index+1;
+ if (dev->width > 360) {
+ /* resolutions: 720,704,640 */
+ dev->video_mode.alt = 3;
+ } else if (dev->width > 180) {
+ /* resolutions: 360,352,320,240 */
+ dev->video_mode.alt = 2;
+ } else if (dev->width > 0) {
+ /* resolutions: 180,176,160,128,88 */
+ dev->video_mode.alt = 1;
+ } else {
+ /* Change to alt0 BULK to release USB bandwidth */
+ dev->video_mode.alt = 0;
+ }
+
+ /* Get the correct video interface Index */
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ video_index + 1;
if (dev->video_mode.alt != prev_alt) {
cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
min_pkt_size, dev->video_mode.alt);
- dev->video_mode.max_pkt_size = dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
+ dev->video_mode.max_pkt_size =
+ dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
- dev->video_mode.alt, dev->video_mode.max_pkt_size);
- cx231xx_info(" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n",
- dev->video_mode.alt, dev->video_mode.max_pkt_size, usb_interface_index);
- errCode = usb_set_interface(dev->udev, usb_interface_index, dev->video_mode.alt);
+ dev->video_mode.alt,
+ dev->video_mode.max_pkt_size);
+ cx231xx_info
+ (" setting alt %d with wMaxPktSize=%u , Interface = %d\n",
+ dev->video_mode.alt, dev->video_mode.max_pkt_size,
+ usb_interface_index);
+ errCode =
+ usb_set_interface(dev->udev, usb_interface_index,
+ dev->video_mode.alt);
if (errCode < 0) {
- cx231xx_errdev("cannot change alternate number to %d (error=%i)\n",
- dev->video_mode.alt, errCode);
+ cx231xx_errdev
+ ("cannot change alt number to %d (error=%i)\n",
+ dev->video_mode.alt, errCode);
return errCode;
}
}
int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
{
- int status = 0;
- u32 usb_interface_index = 0;
- u32 max_pkt_size = 0;
-
- switch(index) {
- case INDEX_TS1:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.ts1_index+1;
- dev->video_mode.alt = alt;
- if(dev->ts1_mode.alt_max_pkt_size != NULL)
- max_pkt_size = dev->ts1_mode.max_pkt_size = dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
- break;
- case INDEX_TS2:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.ts2_index+1;
- break;
- case INDEX_AUDIO:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.audio_index+1;
- dev->adev.alt = alt;
- if( dev->adev.alt_max_pkt_size != NULL)
- max_pkt_size = dev->adev.max_pkt_size = dev->adev.alt_max_pkt_size[dev->adev.alt];
- break;
- case INDEX_VIDEO:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.video_index+1;
- dev->video_mode.alt = alt;
- if(dev->video_mode.alt_max_pkt_size != NULL)
- max_pkt_size = dev->video_mode.max_pkt_size = dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
- break;
- case INDEX_VANC:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.vanc_index+1;
- dev->vbi_mode.alt = alt;
- if(dev->vbi_mode.alt_max_pkt_size != NULL)
- max_pkt_size = dev->vbi_mode.max_pkt_size = dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
- break;
- case INDEX_HANC:
- usb_interface_index = dev->current_pcb_config.hs_config_info[0].interface_info.hanc_index+1;
- dev->sliced_cc_mode.alt = alt;
- if(dev->sliced_cc_mode.alt_max_pkt_size != NULL)
- max_pkt_size = dev->sliced_cc_mode.max_pkt_size = dev->sliced_cc_mode.alt_max_pkt_size[dev->sliced_cc_mode.alt];
- break;
- default:
- break;
- }
-
- if(alt > 0 && max_pkt_size == 0 ) {
- cx231xx_errdev("cannot change interface %d alternate number to %d : Max. Pkt size is ZERO\n",
- usb_interface_index, alt);
- return -1;
- }
-
- cx231xx_info(" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n",
- alt, max_pkt_size, usb_interface_index);
-
- if(usb_interface_index > 0 ) {
- status = usb_set_interface(dev->udev, usb_interface_index, alt);
+ int status = 0;
+ u32 usb_interface_index = 0;
+ u32 max_pkt_size = 0;
+
+ switch (index) {
+ case INDEX_TS1:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ ts1_index + 1;
+ dev->video_mode.alt = alt;
+ if (dev->ts1_mode.alt_max_pkt_size != NULL)
+ max_pkt_size = dev->ts1_mode.max_pkt_size =
+ dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
+ break;
+ case INDEX_TS2:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ ts2_index + 1;
+ break;
+ case INDEX_AUDIO:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ audio_index + 1;
+ dev->adev.alt = alt;
+ if (dev->adev.alt_max_pkt_size != NULL)
+ max_pkt_size = dev->adev.max_pkt_size =
+ dev->adev.alt_max_pkt_size[dev->adev.alt];
+ break;
+ case INDEX_VIDEO:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ video_index + 1;
+ dev->video_mode.alt = alt;
+ if (dev->video_mode.alt_max_pkt_size != NULL)
+ max_pkt_size = dev->video_mode.max_pkt_size =
+ dev->video_mode.alt_max_pkt_size[dev->video_mode.
+ alt];
+ break;
+ case INDEX_VANC:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ vanc_index + 1;
+ dev->vbi_mode.alt = alt;
+ if (dev->vbi_mode.alt_max_pkt_size != NULL)
+ max_pkt_size = dev->vbi_mode.max_pkt_size =
+ dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
+ break;
+ case INDEX_HANC:
+ usb_interface_index =
+ dev->current_pcb_config.hs_config_info[0].interface_info.
+ hanc_index + 1;
+ dev->sliced_cc_mode.alt = alt;
+ if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
+ max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
+ dev->sliced_cc_mode.alt_max_pkt_size[dev->
+ sliced_cc_mode.
+ alt];
+ break;
+ default:
+ break;
+ }
+
+ if (alt > 0 && max_pkt_size == 0) {
+ cx231xx_errdev
+ ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
+ usb_interface_index, alt);
+ return -1;
+ }
+
+ cx231xx_info
+ (" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n",
+ alt, max_pkt_size, usb_interface_index);
+
+ if (usb_interface_index > 0) {
+ status = usb_set_interface(dev->udev, usb_interface_index, alt);
if (status < 0) {
- cx231xx_errdev("cannot change interface %d alternate number to %d (error=%i)\n",
- usb_interface_index, alt, status);
+ cx231xx_errdev
+ ("can't change interface %d alt no. to %d (err=%i)\n",
+ usb_interface_index, alt, status);
return status;
}
- }
+ }
- return status;
+ return status;
}
EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
/* Send GPIO reset sequences specified at board entry */
while (gpio->sleep >= 0) {
- rc = cx231xx_set_gpio_value(dev, gpio->bit,
- gpio->val);
- if (rc < 0)
- return rc;
+ rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
+ if (rc < 0)
+ return rc;
if (gpio->sleep > 0)
msleep(gpio->sleep);
return 0;
if (set_mode == CX231XX_SUSPEND) {
- /* Set the chip in power saving mode */
+ /* Set the chip in power saving mode */
dev->mode = set_mode;
}
dev->mode = set_mode;
- if (dev->mode == CX231XX_DIGITAL_MODE) {
- /* Set Digital power mode */
- } else {
- /* Set Analog Power mode*/
- }
- return 0;
+ if (dev->mode == CX231XX_DIGITAL_MODE)
+ ;/* Set Digital power mode */
+ else
+ ;/* Set Analog Power mode */
+
+ return 0;
}
EXPORT_SYMBOL_GPL(cx231xx_set_mode);
-/************************************************************************************
-* URB Streaming functions *
-*************************************************************************************/
+/*****************************************************************
+* URB Streaming functions *
+******************************************************************/
/*
* IRQ callback, called by URB callback
*/
static void cx231xx_irq_callback(struct urb *urb)
{
- struct cx231xx_dmaqueue *dma_q = urb->context;
- struct cx231xx_video_mode *vmode = container_of(dma_q, struct cx231xx_video_mode, vidq);
- struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
+ struct cx231xx_dmaqueue *dma_q = urb->context;
+ struct cx231xx_video_mode *vmode =
+ container_of(dma_q, struct cx231xx_video_mode, vidq);
+ struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
int rc, i;
-
- switch (urb->status) {
- case 0: /* success */
- case -ETIMEDOUT: /* NAK */
- break;
- case -ECONNRESET: /* kill */
- case -ENOENT:
- case -ESHUTDOWN:
- return;
- default: /* error */
- cx231xx_isocdbg("urb completition error %d.\n", urb->status);
- break;
+ switch (urb->status) {
+ case 0: /* success */
+ case -ETIMEDOUT: /* NAK */
+ break;
+ case -ECONNRESET: /* kill */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ default: /* error */
+ cx231xx_isocdbg("urb completition error %d.\n", urb->status);
+ break;
}
/* Copy data from URB */
urb->status = usb_submit_urb(urb, GFP_ATOMIC);
if (urb->status) {
cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
- urb->status);
+ urb->status);
}
}
for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
urb = dev->video_mode.isoc_ctl.urb[i];
if (urb) {
- if (!irqs_disabled())
- usb_kill_urb(urb);
- else
- usb_unlink_urb(urb);
+ if (!irqs_disabled())
+ usb_kill_urb(urb);
+ else
+ usb_unlink_urb(urb);
if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
usb_buffer_free(dev->udev,
- urb->transfer_buffer_length,
- dev->video_mode.isoc_ctl.transfer_buffer[i],
- urb->transfer_dma);
+ urb->transfer_buffer_length,
+ dev->video_mode.isoc_ctl.
+ transfer_buffer[i],
+ urb->transfer_dma);
}
usb_free_urb(urb);
dev->video_mode.isoc_ctl.urb[i] = NULL;
* Allocate URBs and start IRQ
*/
int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
- int num_bufs, int max_pkt_size,
- int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
+ int num_bufs, int max_pkt_size,
+ int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
{
struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
int i;
cx231xx_isocdbg("cx231xx: called cx231xx_prepare_isoc\n");
- dev->video_input = dev->video_input > 2?2:dev->video_input;
-
- cx231xx_info("Setting Video mux to %d\n",dev->video_input);
- video_mux(dev, dev->video_input);
+ dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
+ cx231xx_info("Setting Video mux to %d\n", dev->video_input);
+ video_mux(dev, dev->video_input);
/* De-allocates all pending stuff */
cx231xx_uninit_isoc(dev);
dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
dev->video_mode.isoc_ctl.num_bufs = num_bufs;
- dma_q->pos = 0;
- dma_q->is_partial_line = 0;
- dma_q->last_sav = 0;
- dma_q->current_field = -1;
- dma_q->field1_done = 0;
- dma_q->lines_per_field = dev->height/2;
- dma_q->bytes_left_in_line = dev->width << 1;
- dma_q->lines_completed = 0;
- for(i = 0; i < 8 ; i++)
- dma_q->partial_buf[i] = 0;
-
- dev->video_mode.isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
+ dma_q->pos = 0;
+ dma_q->is_partial_line = 0;
+ dma_q->last_sav = 0;
+ dma_q->current_field = -1;
+ dma_q->field1_done = 0;
+ dma_q->lines_per_field = dev->height / 2;
+ dma_q->bytes_left_in_line = dev->width << 1;
+ dma_q->lines_completed = 0;
+ for (i = 0; i < 8; i++)
+ dma_q->partial_buf[i] = 0;
+
+ dev->video_mode.isoc_ctl.urb =
+ kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
if (!dev->video_mode.isoc_ctl.urb) {
cx231xx_errdev("cannot alloc memory for usb buffers\n");
return -ENOMEM;
}
- dev->video_mode.isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
- GFP_KERNEL);
+ dev->video_mode.isoc_ctl.transfer_buffer =
+ kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
if (!dev->video_mode.isoc_ctl.transfer_buffer) {
cx231xx_errdev("cannot allocate memory for usbtransfer\n");
kfree(dev->video_mode.isoc_ctl.urb);
}
dev->video_mode.isoc_ctl.urb[i] = urb;
- dev->video_mode.isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev,
- sb_size, GFP_KERNEL, &urb->transfer_dma);
+ dev->video_mode.isoc_ctl.transfer_buffer[i] =
+ usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL,
+ &urb->transfer_dma);
if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
cx231xx_err("unable to allocate %i bytes for transfer"
- " buffer %i%s\n",
- sb_size, i,
- in_interrupt()?" while in int":"");
+ " buffer %i%s\n",
+ sb_size, i,
+ in_interrupt() ? " while in int" : "");
cx231xx_uninit_isoc(dev);
return -ENOMEM;
}
memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
- pipe = usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
+ pipe =
+ usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
usb_fill_int_urb(urb, dev->udev, pipe,
- dev->video_mode.isoc_ctl.transfer_buffer[i], sb_size,
- cx231xx_irq_callback, dma_q, 1);
+ dev->video_mode.isoc_ctl.transfer_buffer[i],
+ sb_size, cx231xx_irq_callback, dma_q, 1);
urb->number_of_packets = max_packets;
urb->transfer_flags = URB_ISO_ASAP;
for (j = 0; j < max_packets; j++) {
urb->iso_frame_desc[j].offset = k;
urb->iso_frame_desc[j].length =
- dev->video_mode.isoc_ctl.max_pkt_size;
+ dev->video_mode.isoc_ctl.max_pkt_size;
k += dev->video_mode.isoc_ctl.max_pkt_size;
}
}
init_waitqueue_head(&dma_q->wq);
-
/* submit urbs and enables IRQ */
for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
- rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i], GFP_ATOMIC);
+ rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
+ GFP_ATOMIC);
if (rc) {
cx231xx_err("submit of urb %i failed (error=%i)\n", i,
- rc);
+ rc);
cx231xx_uninit_isoc(dev);
return rc;
}
}
- cx231xx_capture_start(dev, 1, Raw_Video);
+ cx231xx_capture_start(dev, 1, Raw_Video);
return 0;
}
EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
-/************************************************************************************
-* Device Init/UnInit functions *
-*************************************************************************************/
+/*****************************************************************
+* Device Init/UnInit functions *
+******************************************************************/
int cx231xx_dev_init(struct cx231xx *dev)
{
- int errCode = 0;
+ int errCode = 0;
- /* Initialize I2C bus */
+ /* Initialize I2C bus */
/* External Master 1 Bus */
dev->i2c_bus[0].nr = 0;
dev->i2c_bus[0].dev = dev;
- dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */
- dev->i2c_bus[0].i2c_nostop = 0;
- dev->i2c_bus[0].i2c_reserve = 0;
+ dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */
+ dev->i2c_bus[0].i2c_nostop = 0;
+ dev->i2c_bus[0].i2c_reserve = 0;
/* External Master 2 Bus */
dev->i2c_bus[1].nr = 1;
dev->i2c_bus[1].dev = dev;
- dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */
- dev->i2c_bus[1].i2c_nostop = 0;
- dev->i2c_bus[1].i2c_reserve = 0;
+ dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */
+ dev->i2c_bus[1].i2c_nostop = 0;
+ dev->i2c_bus[1].i2c_reserve = 0;
/* Internal Master 3 Bus */
dev->i2c_bus[2].nr = 2;
dev->i2c_bus[2].dev = dev;
- dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */
- dev->i2c_bus[2].i2c_nostop = 0;
- dev->i2c_bus[2].i2c_reserve = 0;
+ dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */
+ dev->i2c_bus[2].i2c_nostop = 0;
+ dev->i2c_bus[2].i2c_reserve = 0;
- /* register I2C buses */
+ /* register I2C buses */
cx231xx_i2c_register(&dev->i2c_bus[0]);
cx231xx_i2c_register(&dev->i2c_bus[1]);
cx231xx_i2c_register(&dev->i2c_bus[2]);
- /* init hardware */
- /* Note : with out calling set power mode function, colibri can not be set up correctly */
- errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
- if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_set_power_mode : Failed to set Power - errCode [%d]!\n",
- __func__, errCode);
+ /* init hardware */
+ /* Note : with out calling set power mode function,
+ afe can not be set up correctly */
+ errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("%s: Failed to set Power - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- /* initialize Colibri block */
- errCode = cx231xx_colibri_init_super_block(dev, 0x23c);
+ /* initialize Colibri block */
+ errCode = cx231xx_afe_init_super_block(dev, 0x23c);
if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_colibri init super block - errCode [%d]!\n",
- __func__, errCode);
+ cx231xx_errdev
+ ("%s: cx231xx_afe init super block - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- errCode = cx231xx_colibri_init_channels(dev);
- if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_colibri init channels - errCode [%d]!\n",
- __func__, errCode);
+ errCode = cx231xx_afe_init_channels(dev);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("%s: cx231xx_afe init channels - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- /* Set DIF in By pass mode */
- errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
- if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
- __func__, errCode);
+ /* Set DIF in By pass mode */
+ errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- /* flatiron related functions */
- errCode = cx231xx_flatiron_initialize(dev);
- if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_flatiron initialize - errCode [%d]!\n",
- __func__, errCode);
+ /* I2S block related functions */
+ errCode = cx231xx_i2s_blk_initialize(dev);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- /* init control pins */
- errCode = cx231xx_init_ctrl_pin_status(dev);
- if (errCode < 0) {
+ /* init control pins */
+ errCode = cx231xx_init_ctrl_pin_status(dev);
+ if (errCode < 0) {
cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
- __func__, errCode);
+ __func__, errCode);
return errCode;
}
- /* set AGC mode to Analog */
- errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
- if (errCode < 0) {
- cx231xx_errdev("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
- __func__, errCode);
+ /* set AGC mode to Analog */
+ errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
+ __func__, errCode);
return errCode;
}
- /* set all alternate settings to zero initially */
- cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
- cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
- cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
- if(dev->board.has_dvb)
- cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
+ /* set all alternate settings to zero initially */
+ cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
+ cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
+ cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
+ if (dev->board.has_dvb)
+ cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
- /* set the I2C master port to 3 on channel 1 */
- errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
+ /* set the I2C master port to 3 on channel 1 */
+ errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
return errCode;
}
void cx231xx_dev_uninit(struct cx231xx *dev)
{
- /* Un Initialize I2C bus */
+ /* Un Initialize I2C bus */
cx231xx_i2c_unregister(&dev->i2c_bus[2]);
cx231xx_i2c_unregister(&dev->i2c_bus[1]);
cx231xx_i2c_unregister(&dev->i2c_bus[0]);
}
EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
-
-/************************************************************************************
-* G P I O related functions *
-*************************************************************************************/
-int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8* gpio_val,
- u8 len, u8 request, u8 direction)
+/*****************************************************************
+* G P I O related functions *
+******************************************************************/
+int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val,
+ u8 len, u8 request, u8 direction)
{
- int status = 0;
- VENDOR_REQUEST_IN ven_req;
-
- /* Set wValue */
- ven_req.wValue = (u16)(gpio_bit>>16 & 0xffff);
-
- /* set request */
- if(!request){
- if(direction)
- ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
- else
- ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
- }
- else {
- if(direction)
- ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
- else
- ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
- }
-
- /* set index value */
- ven_req.wIndex = (u16)(gpio_bit & 0xffff);
-
- /* set wLength value */
- ven_req.wLength = len;
-
- /* set bData value */
- ven_req.bData = 0;
-
- /* set the buffer for read / write */
- ven_req.pBuff = gpio_val;
+ int status = 0;
+ struct VENDOR_REQUEST_IN ven_req;
+
+ /* Set wValue */
+ ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
+
+ /* set request */
+ if (!request) {
+ if (direction)
+ ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
+ else
+ ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
+ } else {
+ if (direction)
+ ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
+ else
+ ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
+ }
- /* set the direction */
- if(direction){
- ven_req.direction = USB_DIR_IN;
- memset(ven_req.pBuff, 0x00, ven_req.wLength);
- }
- else
- ven_req.direction = USB_DIR_OUT;
+ /* set index value */
+ ven_req.wIndex = (u16) (gpio_bit & 0xffff);
+ /* set wLength value */
+ ven_req.wLength = len;
+ /* set bData value */
+ ven_req.bData = 0;
- /* call common vendor command request */
- status = cx231xx_send_vendor_cmd(dev, &ven_req);
- if (status < 0)
- {
- cx231xx_info("UsbInterface::sendCommand, output buffer failed with status -%d\n", status);
- }
+ /* set the buffer for read / write */
+ ven_req.pBuff = gpio_val;
+
+ /* set the direction */
+ if (direction) {
+ ven_req.direction = USB_DIR_IN;
+ memset(ven_req.pBuff, 0x00, ven_req.wLength);
+ } else
+ ven_req.direction = USB_DIR_OUT;
+
+
+ /* call common vendor command request */
+ status = cx231xx_send_vendor_cmd(dev, &ven_req);
+ if (status < 0) {
+ cx231xx_info
+ ("UsbInterface::sendCommand, failed with status -%d\n",
+ status);
+ }
- return status;
+ return status;
}
-
EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
-/*************************************************************************************
- * C O N T R O L - Register R E A D / W R I T E functions *
- *************************************************************************************/
+/*****************************************************************
+ * C O N T R O L - Register R E A D / W R I T E functions *
+ *****************************************************************/
int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
{
- u8 value[4] = {0x0, 0x0, 0x0, 0x0};
- u32 tmp =0;
- int status = 0;
+ u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
+ u32 tmp = 0;
+ int status = 0;
- status = cx231xx_read_ctrl_reg(dev,VRT_GET_REGISTER, address,value,4);
- if(status < 0)
- return status;
+ status =
+ cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
+ if (status < 0)
+ return status;
- tmp = *((u32 *)value);
- tmp |= mode;
+ tmp = *((u32 *) value);
+ tmp |= mode;
- value[0]=(u8) tmp;
- value[1]=(u8)(tmp>>8);
- value[2]=(u8)(tmp>>16);
- value[3]=(u8)(tmp>>24);
+ value[0] = (u8) tmp;
+ value[1] = (u8) (tmp >> 8);
+ value[2] = (u8) (tmp >> 16);
+ value[3] = (u8) (tmp >> 24);
- status = cx231xx_write_ctrl_reg(dev,VRT_SET_REGISTER, address,value,4);
+ status =
+ cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
- return status;
+ return status;
}
-/*************************************************************************************
- * I 2 C Internal C O N T R O L functions *
- *************************************************************************************/
+/*****************************************************************
+ * I 2 C Internal C O N T R O L functions *
+ *****************************************************************/
int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
- u8 saddr_len, u32 *data, u8 data_len)
+ u8 saddr_len, u32 *data, u8 data_len)
{
- int status = 0;
- struct cx231xx_i2c_xfer_data req_data;
- u8 value[4] ={0,0,0,0};
-
- if(saddr_len == 0)
- saddr = 0;
- else if(saddr_len == 0)
- saddr &= 0xff;
-
- /* prepare xfer_data struct */
- req_data.dev_addr = dev_addr >> 1;
- req_data.direction = I2C_M_RD;
- req_data.saddr_len = saddr_len;
- req_data.saddr_dat = saddr;
- req_data.buf_size = data_len;
- req_data.p_buffer = (u8*)value;
-
- /* usb send command */
- status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
-
- if(status >= 0)
- {
- /* Copy the data read back to main buffer */
- if(data_len == 1)
- *data = value[0];
- else
- *data = value[0] | value[1] << 8 | value[2] << 16 | value[3] << 24;
- }
-
- return status;
+ int status = 0;
+ struct cx231xx_i2c_xfer_data req_data;
+ u8 value[4] = { 0, 0, 0, 0 };
+
+ if (saddr_len == 0)
+ saddr = 0;
+ else if (saddr_len == 0)
+ saddr &= 0xff;
+
+ /* prepare xfer_data struct */
+ req_data.dev_addr = dev_addr >> 1;
+ req_data.direction = I2C_M_RD;
+ req_data.saddr_len = saddr_len;
+ req_data.saddr_dat = saddr;
+ req_data.buf_size = data_len;
+ req_data.p_buffer = (u8 *) value;
+
+ /* usb send command */
+ status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
+
+ if (status >= 0) {
+ /* Copy the data read back to main buffer */
+ if (data_len == 1)
+ *data = value[0];
+ else
+ *data =
+ value[0] | value[1] << 8 | value[2] << 16 | value[3]
+ << 24;
+ }
+
+ return status;
}
int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
- u8 saddr_len, u32 data, u8 data_len)
+ u8 saddr_len, u32 data, u8 data_len)
{
- int status = 0;
- u8 value[4] ={0,0,0,0};
- struct cx231xx_i2c_xfer_data req_data;
-
- value[0]=(u8)data;
- value[1]=(u8)(data>>8);
- value[2]=(u8)(data>>16);
- value[3]=(u8)(data>>24);
-
- if(saddr_len == 0)
- saddr = 0;
- else if(saddr_len == 0)
- saddr &= 0xff;
-
- /* prepare xfer_data struct */
- req_data.dev_addr = dev_addr >> 1;
- req_data.direction = 0;
- req_data.saddr_len = saddr_len;
- req_data.saddr_dat = saddr;
- req_data.buf_size = data_len;
- req_data.p_buffer = value;
-
- /* usb send command */
- status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
-
- return status;
+ int status = 0;
+ u8 value[4] = { 0, 0, 0, 0 };
+ struct cx231xx_i2c_xfer_data req_data;
+
+ value[0] = (u8) data;
+ value[1] = (u8) (data >> 8);
+ value[2] = (u8) (data >> 16);
+ value[3] = (u8) (data >> 24);
+
+ if (saddr_len == 0)
+ saddr = 0;
+ else if (saddr_len == 0)
+ saddr &= 0xff;
+
+ /* prepare xfer_data struct */
+ req_data.dev_addr = dev_addr >> 1;
+ req_data.direction = 0;
+ req_data.saddr_len = saddr_len;
+ req_data.saddr_dat = saddr;
+ req_data.buf_size = data_len;
+ req_data.p_buffer = value;
+
+ /* usb send command */
+ status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
+
+ return status;
}
-int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size, u16 register_address,
- u8 bit_start,u8 bit_end, u32 value)
+int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
+ u16 register_address, u8 bit_start, u8 bit_end,
+ u32 value)
{
- int status = 0;
- u32 tmp;
- u32 mask = 0;
- int i;
-
- if (bit_start>(size-1) || bit_end>(size-1)) {
- return -1;
- }
-
- if (size==8){
- status = cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, &tmp, 1);
- } else {
- status = cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, &tmp, 4);
- }
-
- if (status < 0) {
- return status;
- }
-
- mask = 1<<bit_end;
- for (i=bit_end; i>bit_start&&i>0; i--) {
- mask = mask + (1<<(i-1));
- }
-
- value <<= bit_start;
-
- if (size==8)
- {
- tmp &= ~mask;
- tmp |= value;
- tmp &= 0xff;
- status = cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, tmp, 1);
- }
- else
- {
- tmp &= ~mask;
- tmp |= value;
- status = cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, tmp, 4);
- }
-
- return status;
-}
+ int status = 0;
+ u32 tmp;
+ u32 mask = 0;
+ int i;
+ if (bit_start > (size - 1) || bit_end > (size - 1))
+ return -1;
+
+ if (size == 8) {
+ status =
+ cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
+ &tmp, 1);
+ } else {
+ status =
+ cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
+ &tmp, 4);
+ }
+
+ if (status < 0)
+ return status;
+
+ mask = 1 << bit_end;
+ for (i = bit_end; i > bit_start && i > 0; i--)
+ mask = mask + (1 << (i - 1));
+
+ value <<= bit_start;
+
+ if (size == 8) {
+ tmp &= ~mask;
+ tmp |= value;
+ tmp &= 0xff;
+ status =
+ cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
+ tmp, 1);
+ } else {
+ tmp &= ~mask;
+ tmp |= value;
+ status =
+ cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
+ tmp, 4);
+ }
+ return status;
+}
int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
- u16 saddr, u32 mask, u32 value)
+ u16 saddr, u32 mask, u32 value)
{
- u32 temp;
- int status = 0;
+ u32 temp;
+ int status = 0;
- status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
+ status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
- if(status < 0)
- return status;
+ if (status < 0)
+ return status;
- temp &= ~mask;
- temp |= value;
+ temp &= ~mask;
+ temp |= value;
- status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
+ status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
- return status;
+ return status;
}
u32 cx231xx_set_field(u32 field_mask, u32 data)
{
- u32 temp;
+ u32 temp;
- for (temp = field_mask; (temp & 1) == 0; temp >>= 1) {
- data <<= 1;
- }
+ for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
+ data <<= 1;
- return data;
+ return data;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff