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17ce039b4e
The USB control messages require DMA to work. We cannot pass a stack-allocated buffer, as it is not warranted that the stack would be into a DMA enabled area. Reviewed-by: Patrick Boettcher <patrick.boettcher@posteo.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
44 lines
945 B
C
44 lines
945 B
C
#ifndef _DVB_USB_CXUSB_H_
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#define _DVB_USB_CXUSB_H_
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#define DVB_USB_LOG_PREFIX "cxusb"
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#include "dvb-usb.h"
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/* usb commands - some of it are guesses, don't have a reference yet */
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#define CMD_BLUEBIRD_GPIO_RW 0x05
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#define CMD_I2C_WRITE 0x08
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#define CMD_I2C_READ 0x09
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#define CMD_GPIO_READ 0x0d
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#define CMD_GPIO_WRITE 0x0e
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#define GPIO_TUNER 0x02
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#define CMD_POWER_OFF 0xdc
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#define CMD_POWER_ON 0xde
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#define CMD_STREAMING_ON 0x36
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#define CMD_STREAMING_OFF 0x37
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#define CMD_AVER_STREAM_ON 0x18
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#define CMD_AVER_STREAM_OFF 0x19
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#define CMD_GET_IR_CODE 0x47
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#define CMD_ANALOG 0x50
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#define CMD_DIGITAL 0x51
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/* Max transfer size done by I2C transfer functions */
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#define MAX_XFER_SIZE 80
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struct cxusb_state {
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u8 gpio_write_state[3];
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struct i2c_client *i2c_client_demod;
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struct i2c_client *i2c_client_tuner;
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unsigned char data[MAX_XFER_SIZE];
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struct mutex data_mutex;
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};
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#endif
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