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kernel/drivers/media/usb/cx231xx/cx231xx-core.c

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init repo.
2024-07-22 17:22:30 +08:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
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
*/
#include "cx231xx.h"
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>
#include "cx231xx-reg.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]");
#define cx231xx_coredbg(fmt, arg...) do {\
if (core_debug) \
printk(KERN_INFO "%s %s :"fmt, \
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]");
static int alt = CX231XX_PINOUT;
module_param(alt, int, 0644);
MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
#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 *
******************************************************************/
LIST_HEAD(cx231xx_devlist);
static DEFINE_MUTEX(cx231xx_devlist_mutex);
/*
* cx231xx_realease_resources()
* unregisters the v4l2,i2c and usb devices
* called when the device gets disconnected or at module unload
*/
void cx231xx_remove_from_devlist(struct cx231xx *dev)
{
if (dev == NULL)
return;
if (dev->udev == NULL)
return;
if (atomic_read(&dev->devlist_count) > 0) {
mutex_lock(&cx231xx_devlist_mutex);
list_del(&dev->devlist);
atomic_dec(&dev->devlist_count);
mutex_unlock(&cx231xx_devlist_mutex);
}
};
void cx231xx_add_into_devlist(struct cx231xx *dev)
{
mutex_lock(&cx231xx_devlist_mutex);
list_add_tail(&dev->devlist, &cx231xx_devlist);
atomic_inc(&dev->devlist_count);
mutex_unlock(&cx231xx_devlist_mutex);
};
static LIST_HEAD(cx231xx_extension_devlist);
int cx231xx_register_extension(struct cx231xx_ops *ops)
{
struct cx231xx *dev = NULL;
mutex_lock(&cx231xx_devlist_mutex);
list_add_tail(&ops->next, &cx231xx_extension_devlist);
list_for_each_entry(dev, &cx231xx_devlist, devlist) {
ops->init(dev);
dev_info(dev->dev, "%s initialized\n", ops->name);
}
mutex_unlock(&cx231xx_devlist_mutex);
return 0;
}
EXPORT_SYMBOL(cx231xx_register_extension);
void cx231xx_unregister_extension(struct cx231xx_ops *ops)
{
struct cx231xx *dev = NULL;
mutex_lock(&cx231xx_devlist_mutex);
list_for_each_entry(dev, &cx231xx_devlist, devlist) {
ops->fini(dev);
dev_info(dev->dev, "%s removed\n", ops->name);
}
list_del(&ops->next);
mutex_unlock(&cx231xx_devlist_mutex);
}
EXPORT_SYMBOL(cx231xx_unregister_extension);
void cx231xx_init_extension(struct cx231xx *dev)
{
struct cx231xx_ops *ops = NULL;
mutex_lock(&cx231xx_devlist_mutex);
list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
if (ops->init)
ops->init(dev);
}
mutex_unlock(&cx231xx_devlist_mutex);
}
void cx231xx_close_extension(struct cx231xx *dev)
{
struct cx231xx_ops *ops = NULL;
mutex_lock(&cx231xx_devlist_mutex);
list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
if (ops->fini)
ops->fini(dev);
}
mutex_unlock(&cx231xx_devlist_mutex);
}
/****************************************************************
* U S B related functions *
*****************************************************************/
int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
struct cx231xx_i2c_xfer_data *req_data)
{
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;
if (dev->state & DEV_DISCONNECTED)
return -ENODEV;
/* 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 */
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 && !dev->i2c_scan_running) {
dev_err(dev->dev, "%s: failed with status -%d\n",
__func__, status);
}
return status;
}
EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
/*
* Sends/Receives URB control messages, assuring to use a kalloced buffer
* for all operations (dev->urb_buf), to avoid using stacked buffers, as
* they aren't safe for usage with USB, due to DMA restrictions.
* Also implements the debug code for control URB's.
*/
static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
__u8 request, __u8 requesttype, __u16 value, __u16 index,
void *data, __u16 size, int timeout)
{
int rc, i;
if (reg_debug) {
printk(KERN_DEBUG "%s: (pipe 0x%08x): %s: %02x %02x %02x %02x %02x %02x %02x %02x ",
dev->name,
pipe,
(requesttype & USB_DIR_IN) ? "IN" : "OUT",
requesttype,
request,
value & 0xff, value >> 8,
index & 0xff, index >> 8,
size & 0xff, size >> 8);
if (!(requesttype & USB_DIR_IN)) {
printk(KERN_CONT ">>>");
for (i = 0; i < size; i++)
printk(KERN_CONT " %02x",
((unsigned char *)data)[i]);
}
}
/* Do the real call to usb_control_msg */
mutex_lock(&dev->ctrl_urb_lock);
if (!(requesttype & USB_DIR_IN) && size)
memcpy(dev->urb_buf, data, size);
rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
index, dev->urb_buf, size, timeout);
if ((requesttype & USB_DIR_IN) && size)
memcpy(data, dev->urb_buf, size);
mutex_unlock(&dev->ctrl_urb_lock);
if (reg_debug) {
if (unlikely(rc < 0)) {
printk(KERN_CONT "FAILED!\n");
return rc;
}
if ((requesttype & USB_DIR_IN)) {
printk(KERN_CONT "<<<");
for (i = 0; i < size; i++)
printk(KERN_CONT " %02x",
((unsigned char *)data)[i]);
}
printk(KERN_CONT "\n");
}
return rc;
}
/*
* 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)
{
u8 val = 0;
int ret;
int pipe = usb_rcvctrlpipe(dev->udev, 0);
if (dev->state & DEV_DISCONNECTED)
return -ENODEV;
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;
ret = __usb_control_msg(dev, pipe, req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
val, reg, buf, len, HZ);
return ret;
}
int cx231xx_send_vendor_cmd(struct cx231xx *dev,
struct VENDOR_REQUEST_IN *ven_req)
{
int ret;
int pipe = 0;
int unsend_size = 0;
u8 *pdata;
if (dev->state & DEV_DISCONNECTED)
return -ENODEV;
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 the cx23102 read more than 4 bytes with i2c bus,
* need chop to 4 byte per request
*/
if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
(ven_req->bRequest == 0x5) ||
(ven_req->bRequest == 0x6) ||
/* Internal Master 3 Bus can send
* and receive only 4 bytes per time
*/
(ven_req->bRequest == 0x2))) {
unsend_size = 0;
pdata = ven_req->pBuff;
unsend_size = ven_req->wLength;
/* the first package */
ven_req->wValue = ven_req->wValue & 0xFFFB;
ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
ven_req->wValue, ven_req->wIndex, pdata,
0x0004, HZ);
unsend_size = unsend_size - 4;
/* the middle package */
ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
while (unsend_size - 4 > 0) {
pdata = pdata + 4;
ret = __usb_control_msg(dev, pipe,
ven_req->bRequest,
ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
ven_req->wValue, ven_req->wIndex, pdata,
0x0004, HZ);
unsend_size = unsend_size - 4;
}
/* the last package */
ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
pdata = pdata + 4;
ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
ven_req->wValue, ven_req->wIndex, pdata,
unsend_size, HZ);
} else {
ret = __usb_control_msg(dev, 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);
}
return ret;
}
/*
* cx231xx_write_ctrl_reg()
* sends data to the usb device, specifying bRequest
*/
int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
int len)
{
u8 val = 0;
int ret;
int pipe = usb_sndctrlpipe(dev->udev, 0);
if (dev->state & DEV_DISCONNECTED)
return -ENODEV;
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;
if (reg_debug) {
int byte;
cx231xx_isocdbg("(pipe 0x%08x): 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);
for (byte = 0; byte < len; byte++)
cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
cx231xx_isocdbg("\n");
}
ret = __usb_control_msg(dev, pipe, req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
val, reg, buf, len, HZ);
return ret;
}
/****************************************************************
* 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;
/* When image size is bigger than a certain value,
the frame size should be increased, otherwise, only
green screen will be received.
*/
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;
}
if (dev->USE_ISO == 0)
dev->video_mode.alt = 0;
cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
/* 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);
if (dev->video_mode.alt_max_pkt_size != NULL)
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);
errCode =
usb_set_interface(dev->udev, usb_interface_index,
dev->video_mode.alt);
if (errCode < 0) {
dev_err(dev->dev,
"cannot change alt number to %d (error=%i)\n",
dev->video_mode.alt, errCode);
return errCode;
}
}
return 0;
}
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->ts1_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:
if (dev->board.no_alt_vanc)
return 0;
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) {
dev_err(dev->dev,
"can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
usb_interface_index, alt);
/*To workaround error number=-71 on EP0 for videograbber,
need add following codes.*/
if (dev->board.no_alt_vanc)
return -1;
}
cx231xx_coredbg("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) {
dev_err(dev->dev,
"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_demod_reset(struct cx231xx *dev)
{
u8 status = 0;
u8 value[4] = { 0, 0, 0, 0 };
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
value, 4);
cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
value[0], value[1], value[2], value[3]);
cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
value[1] = (u8) 0x3;
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(10);
value[1] = (u8) 0x0;
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(10);
value[1] = (u8) 0x3;
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
PWR_CTL_EN, value, 4);
msleep(10);
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
value, 4);
cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
value[0], value[1], value[2], value[3]);
return status;
}
EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
int is_fw_load(struct cx231xx *dev)
{
return cx231xx_check_fw(dev);
}
EXPORT_SYMBOL_GPL(is_fw_load);
int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
{
int errCode = 0;
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 */ {
/* set AGC mode to Digital */
switch (dev->model) {
case CX231XX_BOARD_CNXT_CARRAERA:
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_SHELBY:
case CX231XX_BOARD_CNXT_RDU_250:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
break;
case CX231XX_BOARD_CNXT_RDE_253S:
case CX231XX_BOARD_CNXT_RDU_253S:
case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
break;
case CX231XX_BOARD_HAUPPAUGE_EXETER:
case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
errCode = cx231xx_set_power_mode(dev,
POLARIS_AVMODE_DIGITAL);
break;
default:
break;
}
} else/* Set Analog Power mode */ {
/* set AGC mode to Analog */
switch (dev->model) {
case CX231XX_BOARD_CNXT_CARRAERA:
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_SHELBY:
case CX231XX_BOARD_CNXT_RDU_250:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
break;
case CX231XX_BOARD_CNXT_RDE_253S:
case CX231XX_BOARD_CNXT_RDU_253S:
case CX231XX_BOARD_HAUPPAUGE_EXETER:
case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
break;
default:
break;
}
}
if (errCode < 0) {
dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
errCode);
return errCode;
}
return 0;
}
EXPORT_SYMBOL_GPL(cx231xx_set_mode);
int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
{
int errCode = 0;
int actlen = -1;
int ret = -ENOMEM;
u32 *buffer;
buffer = kzalloc(4096, GFP_KERNEL);
if (buffer == NULL)
return -ENOMEM;
memcpy(&buffer[0], firmware, 4096);
ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
buffer, 4096, &actlen, 2000);
if (ret)
dev_err(dev->dev,
"bulk message failed: %d (%d/%d)", ret,
size, actlen);
else {
errCode = actlen != size ? -1 : 0;
}
kfree(buffer);
return errCode;
}
/*****************************************************************
* URB Streaming functions *
******************************************************************/
/*
* IRQ callback, called by URB callback
*/
static void cx231xx_isoc_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);
unsigned long flags;
int i;
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
break;
case -ECONNRESET: /* kill */
case -ENOENT:
case -ESHUTDOWN:
return;
default: /* error */
cx231xx_isocdbg("urb completion error %d.\n", urb->status);
break;
}
/* Copy data from URB */
spin_lock_irqsave(&dev->video_mode.slock, flags);
dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
spin_unlock_irqrestore(&dev->video_mode.slock, flags);
/* 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 = usb_submit_urb(urb, GFP_ATOMIC);
if (urb->status) {
cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
urb->status);
}
}
/*****************************************************************
* URB Streaming functions *
******************************************************************/
/*
* IRQ callback, called by URB callback
*/
static void cx231xx_bulk_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);
unsigned long flags;
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
break;
case -ECONNRESET: /* kill */
case -ENOENT:
case -ESHUTDOWN:
return;
case -EPIPE: /* stall */
cx231xx_isocdbg("urb completion error - device is stalled.\n");
return;
default: /* error */
cx231xx_isocdbg("urb completion error %d.\n", urb->status);
break;
}
/* Copy data from URB */
spin_lock_irqsave(&dev->video_mode.slock, flags);
dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
spin_unlock_irqrestore(&dev->video_mode.slock, flags);
/* Reset urb buffers */
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 cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
struct urb *urb;
int i;
bool broken_pipe = false;
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);
}
if (urb->status == -EPIPE) {
broken_pipe = true;
}
usb_free_urb(urb);
dev->video_mode.isoc_ctl.urb[i] = NULL;
}
dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
}
if (broken_pipe) {
cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
}
kfree(dev->video_mode.isoc_ctl.urb);
kfree(dev->video_mode.isoc_ctl.transfer_buffer);
kfree(dma_q->p_left_data);
dev->video_mode.isoc_ctl.urb = NULL;
dev->video_mode.isoc_ctl.transfer_buffer = NULL;
dev->video_mode.isoc_ctl.num_bufs = 0;
dma_q->p_left_data = NULL;
if (dev->mode_tv == 0)
cx231xx_capture_start(dev, 0, Raw_Video);
else
cx231xx_capture_start(dev, 0, TS1_serial_mode);
}
EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
/*
* Stop and Deallocate URBs
*/
void cx231xx_uninit_bulk(struct cx231xx *dev)
{
struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
struct urb *urb;
int i;
bool broken_pipe = false;
cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
dev->video_mode.bulk_ctl.nfields = -1;
for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
urb = dev->video_mode.bulk_ctl.urb[i];
if (urb) {
if (!irqs_disabled())
usb_kill_urb(urb);
else
usb_unlink_urb(urb);
if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
usb_free_coherent(dev->udev,
urb->transfer_buffer_length,
dev->video_mode.bulk_ctl.
transfer_buffer[i],
urb->transfer_dma);
}
if (urb->status == -EPIPE) {
broken_pipe = true;
}
usb_free_urb(urb);
dev->video_mode.bulk_ctl.urb[i] = NULL;
}
dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
}
if (broken_pipe) {
cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
}
kfree(dev->video_mode.bulk_ctl.urb);
kfree(dev->video_mode.bulk_ctl.transfer_buffer);
kfree(dma_q->p_left_data);
dev->video_mode.bulk_ctl.urb = NULL;
dev->video_mode.bulk_ctl.transfer_buffer = NULL;
dev->video_mode.bulk_ctl.num_bufs = 0;
dma_q->p_left_data = NULL;
if (dev->mode_tv == 0)
cx231xx_capture_start(dev, 0, Raw_Video);
else
cx231xx_capture_start(dev, 0, TS1_serial_mode);
}
EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
/*
* 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;
/* De-allocates all pending stuff */
cx231xx_uninit_isoc(dev);
dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
if (dma_q->p_left_data == NULL)
return -ENOMEM;
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;
dma_q->mpeg_buffer_done = 0;
dma_q->left_data_count = 0;
dma_q->mpeg_buffer_completed = 0;
dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
dma_q->ps_head[0] = 0x00;
dma_q->ps_head[1] = 0x00;
dma_q->ps_head[2] = 0x01;
dma_q->ps_head[3] = 0xBA;
for (i = 0; i < 8; i++)
dma_q->partial_buf[i] = 0;
dev->video_mode.isoc_ctl.urb =
kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
if (!dev->video_mode.isoc_ctl.urb) {
dev_err(dev->dev,
"cannot alloc memory for usb buffers\n");
kfree(dma_q->p_left_data);
return -ENOMEM;
}
dev->video_mode.isoc_ctl.transfer_buffer =
kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
if (!dev->video_mode.isoc_ctl.transfer_buffer) {
dev_err(dev->dev,
"cannot allocate memory for usbtransfer\n");
kfree(dev->video_mode.isoc_ctl.urb);
kfree(dma_q->p_left_data);
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;
if (dev->mode_tv == 1)
dev->video_mode.end_point_addr = 0x81;
else
dev->video_mode.end_point_addr = 0x84;
/* 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_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]) {
dev_err(dev->dev,
"unable to allocate %i bytes for transfer buffer %i\n",
sb_size, i);
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_isoc_irq_callback, dma_q, 1);
urb->number_of_packets = max_packets;
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
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) {
dev_err(dev->dev,
"submit of urb %i failed (error=%i)\n", i,
rc);
cx231xx_uninit_isoc(dev);
return rc;
}
}
if (dev->mode_tv == 0)
cx231xx_capture_start(dev, 1, Raw_Video);
else
cx231xx_capture_start(dev, 1, TS1_serial_mode);
return 0;
}
EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
/*
* Allocate URBs and start IRQ
*/
int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
int num_bufs, int max_pkt_size,
int (*bulk_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 rc;
dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
video_mux(dev, dev->video_input);
/* De-allocates all pending stuff */
cx231xx_uninit_bulk(dev);
dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
dev->video_mode.bulk_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;
dma_q->mpeg_buffer_done = 0;
dma_q->left_data_count = 0;
dma_q->mpeg_buffer_completed = 0;
dma_q->ps_head[0] = 0x00;
dma_q->ps_head[1] = 0x00;
dma_q->ps_head[2] = 0x01;
dma_q->ps_head[3] = 0xBA;
for (i = 0; i < 8; i++)
dma_q->partial_buf[i] = 0;
dev->video_mode.bulk_ctl.urb =
kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
if (!dev->video_mode.bulk_ctl.urb) {
dev_err(dev->dev,
"cannot alloc memory for usb buffers\n");
return -ENOMEM;
}
dev->video_mode.bulk_ctl.transfer_buffer =
kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
if (!dev->video_mode.bulk_ctl.transfer_buffer) {
dev_err(dev->dev,
"cannot allocate memory for usbtransfer\n");
kfree(dev->video_mode.bulk_ctl.urb);
return -ENOMEM;
}
dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
dev->video_mode.bulk_ctl.buf = NULL;
sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
if (dev->mode_tv == 1)
dev->video_mode.end_point_addr = 0x81;
else
dev->video_mode.end_point_addr = 0x84;
/* allocate urbs and transfer buffers */
for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
cx231xx_uninit_bulk(dev);
return -ENOMEM;
}
dev->video_mode.bulk_ctl.urb[i] = urb;
urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
dev->video_mode.bulk_ctl.transfer_buffer[i] =
usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
&urb->transfer_dma);
if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
dev_err(dev->dev,
"unable to allocate %i bytes for transfer buffer %i\n",
sb_size, i);
cx231xx_uninit_bulk(dev);
return -ENOMEM;
}
memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
pipe = usb_rcvbulkpipe(dev->udev,
dev->video_mode.end_point_addr);
usb_fill_bulk_urb(urb, dev->udev, pipe,
dev->video_mode.bulk_ctl.transfer_buffer[i],
sb_size, cx231xx_bulk_irq_callback, dma_q);
}
/* clear halt */
rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
if (rc < 0) {
dev_err(dev->dev,
"failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
rc);
cx231xx_uninit_bulk(dev);
return rc;
}
init_waitqueue_head(&dma_q->wq);
/* submit urbs and enables IRQ */
for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
GFP_ATOMIC);
if (rc) {
dev_err(dev->dev,
"submit of urb %i failed (error=%i)\n", i, rc);
cx231xx_uninit_bulk(dev);
return rc;
}
}
if (dev->mode_tv == 0)
cx231xx_capture_start(dev, 1, Raw_Video);
else
cx231xx_capture_start(dev, 1, TS1_serial_mode);
return 0;
}
EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
void cx231xx_stop_TS1(struct cx231xx *dev)
{
u8 val[4] = { 0, 0, 0, 0 };
val[0] = 0x00;
val[1] = 0x03;
val[2] = 0x00;
val[3] = 0x00;
cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
TS_MODE_REG, val, 4);
val[0] = 0x00;
val[1] = 0x70;
val[2] = 0x04;
val[3] = 0x00;
cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
TS1_CFG_REG, val, 4);
}
/* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
void cx231xx_start_TS1(struct cx231xx *dev)
{
u8 val[4] = { 0, 0, 0, 0 };
val[0] = 0x03;
val[1] = 0x03;
val[2] = 0x00;
val[3] = 0x00;
cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
TS_MODE_REG, val, 4);
val[0] = 0x04;
val[1] = 0xA3;
val[2] = 0x3B;
val[3] = 0x00;
cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
TS1_CFG_REG, val, 4);
}
/* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
/*****************************************************************
* 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_100K; /* 100 KHz */
dev->i2c_bus[0].i2c_nostop = 0;
dev->i2c_bus[0].i2c_reserve = 0;
dev->i2c_bus[0].i2c_rc = -ENODEV;
/* External Master 2 Bus */
dev->i2c_bus[1].nr = 1;
dev->i2c_bus[1].dev = dev;
dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
dev->i2c_bus[1].i2c_nostop = 0;
dev->i2c_bus[1].i2c_reserve = 0;
dev->i2c_bus[1].i2c_rc = -ENODEV;
/* Internal Master 3 Bus */
dev->i2c_bus[2].nr = 2;
dev->i2c_bus[2].dev = dev;
dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
dev->i2c_bus[2].i2c_nostop = 0;
dev->i2c_bus[2].i2c_reserve = 0;
dev->i2c_bus[2].i2c_rc = -ENODEV;
/* register I2C buses */
errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
if (errCode < 0)
return errCode;
errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
if (errCode < 0)
return errCode;
errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
if (errCode < 0)
return errCode;
errCode = cx231xx_i2c_mux_create(dev);
if (errCode < 0) {
dev_err(dev->dev,
"%s: Failed to create I2C mux\n", __func__);
return errCode;
}
errCode = cx231xx_i2c_mux_register(dev, 0);
if (errCode < 0)
return errCode;
errCode = cx231xx_i2c_mux_register(dev, 1);
if (errCode < 0)
return errCode;
/* scan the real bus segments in the order of physical port numbers */
cx231xx_do_i2c_scan(dev, I2C_0);
cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
cx231xx_do_i2c_scan(dev, I2C_2);
cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
/* init hardware */
/* Note : with out calling set power mode function,
afe can not be set up correctly */
if (dev->board.external_av) {
errCode = cx231xx_set_power_mode(dev,
POLARIS_AVMODE_ENXTERNAL_AV);
if (errCode < 0) {
dev_err(dev->dev,
"%s: Failed to set Power - errCode [%d]!\n",
__func__, errCode);
return errCode;
}
} else {
errCode = cx231xx_set_power_mode(dev,
POLARIS_AVMODE_ANALOGT_TV);
if (errCode < 0) {
dev_err(dev->dev,
"%s: Failed to set Power - errCode [%d]!\n",
__func__, errCode);
return errCode;
}
}
/* reset the Tuner, if it is a Xceive tuner */
if ((dev->board.tuner_type == TUNER_XC5000) ||
(dev->board.tuner_type == TUNER_XC2028))
cx231xx_gpio_set(dev, dev->board.tuner_gpio);
/* initialize Colibri block */
errCode = cx231xx_afe_init_super_block(dev, 0x23c);
if (errCode < 0) {
dev_err(dev->dev,
"%s: cx231xx_afe init super block - errCode [%d]!\n",
__func__, errCode);
return errCode;
}
errCode = cx231xx_afe_init_channels(dev);
if (errCode < 0) {
dev_err(dev->dev,
"%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) {
dev_err(dev->dev,
"%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) {
dev_err(dev->dev,
"%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) {
dev_err(dev->dev,
"%s: cx231xx_init ctrl pins - errCode [%d]!\n",
__func__, errCode);
return errCode;
}
/* set AGC mode to Analog */
switch (dev->model) {
case CX231XX_BOARD_CNXT_CARRAERA:
case CX231XX_BOARD_CNXT_RDE_250:
case CX231XX_BOARD_CNXT_SHELBY:
case CX231XX_BOARD_CNXT_RDU_250:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
break;
case CX231XX_BOARD_CNXT_RDE_253S:
case CX231XX_BOARD_CNXT_RDU_253S:
case CX231XX_BOARD_HAUPPAUGE_EXETER:
case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
break;
default:
break;
}
if (errCode < 0) {
dev_err(dev->dev,
"%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);
errCode = 0;
return errCode;
}
EXPORT_SYMBOL_GPL(cx231xx_dev_init);
void cx231xx_dev_uninit(struct cx231xx *dev)
{
/* Un Initialize I2C bus */
cx231xx_i2c_mux_unregister(dev);
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; /* 0x9 gpio */
else
ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
} else {
if (direction)
ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
else
ven_req.bRequest = VRT_SET_GPIE; /* 0xa 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) {
dev_err(dev->dev, "%s: failed with status -%d\n",
__func__, 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 = le32_to_cpu(*((__le32 *) 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_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
u8 saddr_len, u32 *data, u8 data_len, int master)
{
int status = 0;
struct cx231xx_i2c_xfer_data req_data;
u8 value[64] = "0";
if (saddr_len == 0)
saddr = 0;
else if (saddr_len == 1)
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 */
if (master == 0)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
&req_data);
else if (master == 1)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
&req_data);
else if (master == 2)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
&req_data);
if (status >= 0) {
/* Copy the data read back to main buffer */
if (data_len == 1)
*data = value[0];
else if (data_len == 4)
*data =
value[0] | value[1] << 8 | value[2] << 16 | value[3]
<< 24;
else if (data_len > 4)
*data = value[saddr];
}
return status;
}
int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
u8 saddr_len, u32 data, u8 data_len, int master)
{
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 == 1)
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 */
if (master == 0)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
&req_data);
else if (master == 1)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
&req_data);
else if (master == 2)
status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
&req_data);
return status;
}
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 == 1)
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 == 1)
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;
}
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