linux/drivers/media/usb/dvb-usb/dib0700_core.c

// SPDX-License-Identifier: GPL-2.0-only
/* Linux driver for devices based on the DiBcom DiB0700 USB bridge
 *
 *  Copyright (C) 2005-6 DiBcom, SA
 */
#include "dib0700.h"

/* debug */
int dvb_usb_dib0700_debug;
module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
MODULE_PARM_DESC(…) …;

static int nb_packet_buffer_size = …;
module_param(nb_packet_buffer_size, int, 0644);
MODULE_PARM_DESC(…) …;

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);


int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
			u32 *romversion, u32 *ramversion, u32 *fwtype)
{ … }

/* expecting rx buffer: request data[0] data[1] ... data[2] */
static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
{ … }

/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
{ … }

int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
{ … }

static int dib0700_set_usb_xfer_len(struct dvb_usb_device *d, u16 nb_ts_packets)
{ … }

/*
 * I2C master xfer function (supported in 1.20 firmware)
 */
static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
				int num)
{ … }

/*
 * I2C master xfer function (pre-1.20 firmware)
 */
static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
				   struct i2c_msg *msg, int num)
{ … }

static int dib0700_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
			    int num)
{ … }

static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
{ … }

struct i2c_algorithm dib0700_i2c_algo = …;

int dib0700_identify_state(struct usb_device *udev,
			   const struct dvb_usb_device_properties *props,
			   const struct dvb_usb_device_description **desc,
			   int *cold)
{ … }

static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
	u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
	u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
{ … }

int dib0700_set_i2c_speed(struct dvb_usb_device *d, u16 scl_kHz)
{ … }


int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
{ … }

static int dib0700_jumpram(struct usb_device *udev, u32 address)
{ … }

int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
{ … }

int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{ … }

int dib0700_change_protocol(struct rc_dev *rc, u64 *rc_proto)
{ … }

/* This is the structure of the RC response packet starting in firmware 1.20 */
struct dib0700_rc_response { … };
#define RC_MSG_SIZE_V1_20 …

static void dib0700_rc_urb_completion(struct urb *purb)
{ … }

int dib0700_rc_setup(struct dvb_usb_device *d, struct usb_interface *intf)
{ … }

static int dib0700_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{ … }

static void dib0700_disconnect(struct usb_interface *intf)
{ … }


static struct usb_driver dib0700_driver = …;

module_usb_driver(…) …;

MODULE_FIRMWARE(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_VERSION(…) …;
MODULE_LICENSE(…) …;