mirror of https://gitee.com/openkylin/linux.git
1173 lines
30 KiB
C
1173 lines
30 KiB
C
/*
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cx231xx-core.c - driver for Conexant Cx23100/101/102
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USB video capture devices
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Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
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Based on em28xx driver
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/vmalloc.h>
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#include <media/v4l2-common.h>
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#include "cx231xx.h"
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#include "cx231xx-reg.h"
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/* #define ENABLE_DEBUG_ISOC_FRAMES */
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static unsigned int core_debug;
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module_param(core_debug, int, 0644);
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MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
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#define cx231xx_coredbg(fmt, arg...) do {\
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if (core_debug) \
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printk(KERN_INFO "%s %s :"fmt, \
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dev->name, __func__ , ##arg); } while (0)
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static unsigned int reg_debug;
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module_param(reg_debug, int, 0644);
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MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
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#define cx231xx_regdbg(fmt, arg...) do {\
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if (reg_debug) \
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printk(KERN_INFO "%s %s :"fmt, \
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dev->name, __func__ , ##arg); } while (0)
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static int alt = CX231XX_PINOUT;
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module_param(alt, int, 0644);
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MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
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#define cx231xx_isocdbg(fmt, arg...) do {\
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if (core_debug) \
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printk(KERN_INFO "%s %s :"fmt, \
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dev->name, __func__ , ##arg); } while (0)
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/*****************************************************************
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* Device control list functions *
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******************************************************************/
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static LIST_HEAD(cx231xx_devlist);
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static DEFINE_MUTEX(cx231xx_devlist_mutex);
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/*
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* cx231xx_realease_resources()
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* unregisters the v4l2,i2c and usb devices
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* called when the device gets disconected or at module unload
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*/
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void cx231xx_remove_from_devlist(struct cx231xx *dev)
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{
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mutex_lock(&cx231xx_devlist_mutex);
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list_del(&dev->devlist);
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mutex_unlock(&cx231xx_devlist_mutex);
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};
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void cx231xx_add_into_devlist(struct cx231xx *dev)
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{
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mutex_lock(&cx231xx_devlist_mutex);
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list_add_tail(&dev->devlist, &cx231xx_devlist);
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mutex_unlock(&cx231xx_devlist_mutex);
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};
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static LIST_HEAD(cx231xx_extension_devlist);
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static DEFINE_MUTEX(cx231xx_extension_devlist_lock);
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int cx231xx_register_extension(struct cx231xx_ops *ops)
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{
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struct cx231xx *dev = NULL;
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mutex_lock(&cx231xx_devlist_mutex);
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mutex_lock(&cx231xx_extension_devlist_lock);
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list_add_tail(&ops->next, &cx231xx_extension_devlist);
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list_for_each_entry(dev, &cx231xx_devlist, devlist)
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ops->init(dev);
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printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
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mutex_unlock(&cx231xx_extension_devlist_lock);
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mutex_unlock(&cx231xx_devlist_mutex);
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return 0;
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}
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EXPORT_SYMBOL(cx231xx_register_extension);
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void cx231xx_unregister_extension(struct cx231xx_ops *ops)
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{
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struct cx231xx *dev = NULL;
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mutex_lock(&cx231xx_devlist_mutex);
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list_for_each_entry(dev, &cx231xx_devlist, devlist)
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ops->fini(dev);
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mutex_lock(&cx231xx_extension_devlist_lock);
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printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
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list_del(&ops->next);
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mutex_unlock(&cx231xx_extension_devlist_lock);
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mutex_unlock(&cx231xx_devlist_mutex);
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}
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EXPORT_SYMBOL(cx231xx_unregister_extension);
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void cx231xx_init_extension(struct cx231xx *dev)
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{
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struct cx231xx_ops *ops = NULL;
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mutex_lock(&cx231xx_extension_devlist_lock);
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if (!list_empty(&cx231xx_extension_devlist)) {
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list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
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if (ops->init)
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ops->init(dev);
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}
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}
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mutex_unlock(&cx231xx_extension_devlist_lock);
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}
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void cx231xx_close_extension(struct cx231xx *dev)
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{
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struct cx231xx_ops *ops = NULL;
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mutex_lock(&cx231xx_extension_devlist_lock);
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if (!list_empty(&cx231xx_extension_devlist)) {
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list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
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if (ops->fini)
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ops->fini(dev);
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}
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}
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mutex_unlock(&cx231xx_extension_devlist_lock);
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}
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/****************************************************************
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* U S B related functions *
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*****************************************************************/
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int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
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struct cx231xx_i2c_xfer_data *req_data)
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{
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int status = 0;
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struct cx231xx *dev = i2c_bus->dev;
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struct VENDOR_REQUEST_IN ven_req;
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u8 saddr_len = 0;
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u8 _i2c_period = 0;
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u8 _i2c_nostop = 0;
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u8 _i2c_reserve = 0;
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/* Get the I2C period, nostop and reserve parameters */
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_i2c_period = i2c_bus->i2c_period;
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_i2c_nostop = i2c_bus->i2c_nostop;
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_i2c_reserve = i2c_bus->i2c_reserve;
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saddr_len = req_data->saddr_len;
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/* Set wValue */
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if (saddr_len == 1) /* need check saddr_len == 0 */
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ven_req.wValue =
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req_data->
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dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
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_i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
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else
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ven_req.wValue =
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req_data->
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dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
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_i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
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/* set channel number */
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if (req_data->direction & I2C_M_RD) {
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/* channel number, for read,spec required channel_num +4 */
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ven_req.bRequest = i2c_bus->nr + 4;
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} else
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ven_req.bRequest = i2c_bus->nr; /* channel number, */
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/* set index value */
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switch (saddr_len) {
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case 0:
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ven_req.wIndex = 0; /* need check */
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break;
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case 1:
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ven_req.wIndex = (req_data->saddr_dat & 0xff);
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break;
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case 2:
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ven_req.wIndex = req_data->saddr_dat;
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break;
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}
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/* set wLength value */
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ven_req.wLength = req_data->buf_size;
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/* set bData value */
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ven_req.bData = 0;
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/* set the direction */
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if (req_data->direction) {
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ven_req.direction = USB_DIR_IN;
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memset(req_data->p_buffer, 0x00, ven_req.wLength);
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} else
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ven_req.direction = USB_DIR_OUT;
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/* set the buffer for read / write */
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ven_req.pBuff = req_data->p_buffer;
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/* call common vendor command request */
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status = cx231xx_send_vendor_cmd(dev, &ven_req);
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if (status < 0) {
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cx231xx_info
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("UsbInterface::sendCommand, failed with status -%d\n",
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status);
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}
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return status;
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}
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EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
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/*
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* cx231xx_read_ctrl_reg()
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* reads data from the usb device specifying bRequest and wValue
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*/
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int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
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char *buf, int len)
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{
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u8 val = 0;
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int ret;
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int pipe = usb_rcvctrlpipe(dev->udev, 0);
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if (dev->state & DEV_DISCONNECTED)
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return -ENODEV;
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if (len > URB_MAX_CTRL_SIZE)
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return -EINVAL;
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switch (len) {
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case 1:
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val = ENABLE_ONE_BYTE;
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break;
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case 2:
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val = ENABLE_TWE_BYTE;
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break;
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case 3:
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val = ENABLE_THREE_BYTE;
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break;
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case 4:
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val = ENABLE_FOUR_BYTE;
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break;
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default:
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val = 0xFF; /* invalid option */
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}
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if (val == 0xFF)
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return -EINVAL;
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if (reg_debug) {
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cx231xx_isocdbg("(pipe 0x%08x): "
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"IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
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pipe,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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req, 0, val,
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reg & 0xff, reg >> 8, len & 0xff, len >> 8);
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}
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mutex_lock(&dev->ctrl_urb_lock);
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ret = usb_control_msg(dev->udev, pipe, req,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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val, reg, dev->urb_buf, len, HZ);
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if (ret < 0) {
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cx231xx_isocdbg(" failed!\n");
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/* mutex_unlock(&dev->ctrl_urb_lock); */
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return ret;
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}
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if (len)
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memcpy(buf, dev->urb_buf, len);
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mutex_unlock(&dev->ctrl_urb_lock);
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if (reg_debug) {
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int byte;
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cx231xx_isocdbg("<<<");
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for (byte = 0; byte < len; byte++)
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cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
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cx231xx_isocdbg("\n");
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}
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return ret;
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}
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int cx231xx_send_vendor_cmd(struct cx231xx *dev,
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struct VENDOR_REQUEST_IN *ven_req)
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{
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int ret;
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int pipe = 0;
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if (dev->state & DEV_DISCONNECTED)
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return -ENODEV;
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if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
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return -EINVAL;
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if (ven_req->direction)
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pipe = usb_rcvctrlpipe(dev->udev, 0);
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else
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pipe = usb_sndctrlpipe(dev->udev, 0);
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if (reg_debug) {
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int byte;
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cx231xx_isocdbg("(pipe 0x%08x): "
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"OUT: %02x %02x %02x %04x %04x %04x >>>",
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pipe,
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ven_req->
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direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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ven_req->bRequest, 0, ven_req->wValue,
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ven_req->wIndex, ven_req->wLength);
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for (byte = 0; byte < ven_req->wLength; byte++)
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cx231xx_isocdbg(" %02x",
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(unsigned char)ven_req->pBuff[byte]);
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cx231xx_isocdbg("\n");
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}
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mutex_lock(&dev->ctrl_urb_lock);
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ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
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ven_req->
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direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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ven_req->wValue, ven_req->wIndex, ven_req->pBuff,
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ven_req->wLength, HZ);
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mutex_unlock(&dev->ctrl_urb_lock);
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return ret;
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}
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/*
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* cx231xx_write_ctrl_reg()
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* sends data to the usb device, specifying bRequest
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*/
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int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
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int len)
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{
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u8 val = 0;
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int ret;
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int pipe = usb_sndctrlpipe(dev->udev, 0);
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if (dev->state & DEV_DISCONNECTED)
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return -ENODEV;
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if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
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return -EINVAL;
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switch (len) {
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case 1:
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val = ENABLE_ONE_BYTE;
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break;
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case 2:
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val = ENABLE_TWE_BYTE;
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break;
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case 3:
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val = ENABLE_THREE_BYTE;
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break;
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case 4:
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val = ENABLE_FOUR_BYTE;
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break;
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default:
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val = 0xFF; /* invalid option */
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}
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if (val == 0xFF)
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return -EINVAL;
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if (reg_debug) {
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int byte;
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cx231xx_isocdbg("(pipe 0x%08x): "
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"OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
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pipe,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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req, 0, val, reg & 0xff,
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reg >> 8, len & 0xff, len >> 8);
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for (byte = 0; byte < len; byte++)
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cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
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cx231xx_isocdbg("\n");
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}
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mutex_lock(&dev->ctrl_urb_lock);
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memcpy(dev->urb_buf, buf, len);
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ret = usb_control_msg(dev->udev, pipe, req,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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val, reg, dev->urb_buf, len, HZ);
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mutex_unlock(&dev->ctrl_urb_lock);
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return ret;
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}
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/****************************************************************
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* USB Alternate Setting functions *
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*****************************************************************/
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int cx231xx_set_video_alternate(struct cx231xx *dev)
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{
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int errCode, prev_alt = dev->video_mode.alt;
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unsigned int min_pkt_size = dev->width * 2 + 4;
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u32 usb_interface_index = 0;
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/* When image size is bigger than a certain value,
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the frame size should be increased, otherwise, only
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green screen will be received.
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*/
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if (dev->width * 2 * dev->height > 720 * 240 * 2)
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min_pkt_size *= 2;
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if (dev->width > 360) {
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/* resolutions: 720,704,640 */
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dev->video_mode.alt = 3;
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} else if (dev->width > 180) {
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/* resolutions: 360,352,320,240 */
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dev->video_mode.alt = 2;
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} else if (dev->width > 0) {
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/* resolutions: 180,176,160,128,88 */
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dev->video_mode.alt = 1;
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} else {
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/* Change to alt0 BULK to release USB bandwidth */
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dev->video_mode.alt = 0;
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}
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/* Get the correct video interface Index */
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usb_interface_index =
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dev->current_pcb_config.hs_config_info[0].interface_info.
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video_index + 1;
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if (dev->video_mode.alt != prev_alt) {
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cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
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min_pkt_size, dev->video_mode.alt);
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dev->video_mode.max_pkt_size =
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dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
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cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
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dev->video_mode.alt,
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dev->video_mode.max_pkt_size);
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cx231xx_info
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(" setting alt %d with wMaxPktSize=%u , Interface = %d\n",
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dev->video_mode.alt, dev->video_mode.max_pkt_size,
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usb_interface_index);
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errCode =
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usb_set_interface(dev->udev, usb_interface_index,
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dev->video_mode.alt);
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if (errCode < 0) {
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cx231xx_errdev
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("cannot change alt number to %d (error=%i)\n",
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dev->video_mode.alt, errCode);
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return errCode;
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}
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}
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return 0;
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}
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|
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int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
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{
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int status = 0;
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u32 usb_interface_index = 0;
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u32 max_pkt_size = 0;
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switch (index) {
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case INDEX_TS1:
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usb_interface_index =
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dev->current_pcb_config.hs_config_info[0].interface_info.
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ts1_index + 1;
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dev->video_mode.alt = alt;
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if (dev->ts1_mode.alt_max_pkt_size != NULL)
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max_pkt_size = dev->ts1_mode.max_pkt_size =
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dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
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break;
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case INDEX_TS2:
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usb_interface_index =
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dev->current_pcb_config.hs_config_info[0].interface_info.
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ts2_index + 1;
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break;
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case INDEX_AUDIO:
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usb_interface_index =
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dev->current_pcb_config.hs_config_info[0].interface_info.
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audio_index + 1;
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dev->adev.alt = alt;
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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
|
|
("can't change interface %d alt no. to %d (err=%i)\n",
|
|
usb_interface_index, alt, status);
|
|
return status;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
|
|
|
|
int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (!gpio)
|
|
return rc;
|
|
|
|
/* 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;
|
|
|
|
if (gpio->sleep > 0)
|
|
msleep(gpio->sleep);
|
|
|
|
gpio++;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
|
|
{
|
|
if (dev->mode == set_mode)
|
|
return 0;
|
|
|
|
if (set_mode == CX231XX_SUSPEND) {
|
|
/* Set the chip in power saving mode */
|
|
dev->mode = set_mode;
|
|
}
|
|
|
|
/* Resource is locked */
|
|
if (dev->mode != CX231XX_SUSPEND)
|
|
return -EINVAL;
|
|
|
|
dev->mode = set_mode;
|
|
|
|
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 *
|
|
******************************************************************/
|
|
|
|
/*
|
|
* 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);
|
|
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;
|
|
}
|
|
|
|
/* Copy data from URB */
|
|
spin_lock(&dev->video_mode.slock);
|
|
rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
|
|
spin_unlock(&dev->video_mode.slock);
|
|
|
|
/* Reset urb buffers */
|
|
for (i = 0; i < urb->number_of_packets; i++) {
|
|
urb->iso_frame_desc[i].status = 0;
|
|
urb->iso_frame_desc[i].actual_length = 0;
|
|
}
|
|
urb->status = 0;
|
|
|
|
urb->status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (urb->status) {
|
|
cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
|
|
urb->status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stop and Deallocate URBs
|
|
*/
|
|
void cx231xx_uninit_isoc(struct cx231xx *dev)
|
|
{
|
|
struct urb *urb;
|
|
int i;
|
|
|
|
cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
|
|
|
|
dev->video_mode.isoc_ctl.nfields = -1;
|
|
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 (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
|
|
usb_free_coherent(dev->udev,
|
|
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;
|
|
}
|
|
dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
|
|
}
|
|
|
|
kfree(dev->video_mode.isoc_ctl.urb);
|
|
kfree(dev->video_mode.isoc_ctl.transfer_buffer);
|
|
|
|
dev->video_mode.isoc_ctl.urb = NULL;
|
|
dev->video_mode.isoc_ctl.transfer_buffer = NULL;
|
|
dev->video_mode.isoc_ctl.num_bufs = 0;
|
|
|
|
cx231xx_capture_start(dev, 0, Raw_Video);
|
|
}
|
|
EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
|
|
|
|
/*
|
|
* 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))
|
|
{
|
|
struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
|
|
int i;
|
|
int sb_size, pipe;
|
|
struct urb *urb;
|
|
int j, k;
|
|
int rc;
|
|
|
|
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);
|
|
|
|
/* 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);
|
|
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);
|
|
if (!dev->video_mode.isoc_ctl.transfer_buffer) {
|
|
cx231xx_errdev("cannot allocate memory for usbtransfer\n");
|
|
kfree(dev->video_mode.isoc_ctl.urb);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
|
|
dev->video_mode.isoc_ctl.buf = NULL;
|
|
|
|
sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
|
|
|
|
/* allocate urbs and transfer buffers */
|
|
for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
|
|
urb = usb_alloc_urb(max_packets, GFP_KERNEL);
|
|
if (!urb) {
|
|
cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
|
|
cx231xx_uninit_isoc(dev);
|
|
return -ENOMEM;
|
|
}
|
|
dev->video_mode.isoc_ctl.urb[i] = urb;
|
|
|
|
dev->video_mode.isoc_ctl.transfer_buffer[i] =
|
|
usb_alloc_coherent(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" : "");
|
|
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);
|
|
|
|
usb_fill_int_urb(urb, dev->udev, pipe,
|
|
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;
|
|
|
|
k = 0;
|
|
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;
|
|
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);
|
|
if (rc) {
|
|
cx231xx_err("submit of urb %i failed (error=%i)\n", i,
|
|
rc);
|
|
cx231xx_uninit_isoc(dev);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
cx231xx_capture_start(dev, 1, Raw_Video);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
|
|
|
|
/*****************************************************************
|
|
* Device Init/UnInit functions *
|
|
******************************************************************/
|
|
int cx231xx_dev_init(struct cx231xx *dev)
|
|
{
|
|
int errCode = 0;
|
|
|
|
/* 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;
|
|
|
|
/* 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;
|
|
|
|
/* 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;
|
|
|
|
/* 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,
|
|
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_afe_init_super_block(dev, 0x23c);
|
|
if (errCode < 0) {
|
|
cx231xx_errdev
|
|
("%s: cx231xx_afe init super block - errCode [%d]!\n",
|
|
__func__, errCode);
|
|
return 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);
|
|
return 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) {
|
|
cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
|
|
__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);
|
|
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 the I2C master port to 3 on channel 1 */
|
|
errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
|
|
|
|
return errCode;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cx231xx_dev_init);
|
|
|
|
void cx231xx_dev_uninit(struct cx231xx *dev)
|
|
{
|
|
/* 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)
|
|
{
|
|
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 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;
|
|
|
|
/* 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;
|
|
}
|
|
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 *
|
|
*****************************************************************/
|
|
int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
|
|
{
|
|
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;
|
|
|
|
tmp = *((u32 *) value);
|
|
tmp |= mode;
|
|
|
|
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);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*****************************************************************
|
|
* 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)
|
|
{
|
|
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)
|
|
{
|
|
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 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)
|
|
{
|
|
u32 temp;
|
|
int status = 0;
|
|
|
|
status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
|
|
|
|
if (status < 0)
|
|
return status;
|
|
|
|
temp &= ~mask;
|
|
temp |= value;
|
|
|
|
status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
|
|
|
|
return status;
|
|
}
|
|
|
|
u32 cx231xx_set_field(u32 field_mask, u32 data)
|
|
{
|
|
u32 temp;
|
|
|
|
for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
|
|
data <<= 1;
|
|
|
|
return data;
|
|
}
|