--- /dev/null
+/* Linux driver for devices based on the DiBcom DiB0700 USB bridge
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 2.
+ *
+ * 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(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
+
+/* expecting rx buffer: request data[0] data[1] ... data[2] */
+static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
+{
+ int status;
+
+ deb_data(">>> ");
+ debug_dump(tx,txlen,deb_data);
+
+ status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
+ tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,
+ USB_CTRL_GET_TIMEOUT);
+
+ if (status != txlen)
+ deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);
+
+ return status < 0 ? status : 0;
+}
+
+/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
+static int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
+{
+ u16 index, value;
+ int status;
+
+ if (txlen < 2) {
+ err("tx buffer length is smaller than 2. Makes no sense.");
+ return -EINVAL;
+ }
+ if (txlen > 4) {
+ err("tx buffer length is larger than 4. Not supported.");
+ return -EINVAL;
+ }
+
+ deb_data(">>> ");
+ debug_dump(tx,txlen,deb_data);
+
+ value = ((txlen - 2) << 8) | tx[1];
+ index = 0;
+ if (txlen > 2)
+ index |= (tx[2] << 8);
+ if (txlen > 3)
+ index |= tx[3];
+
+ /* think about swapping here */
+ value = le16_to_cpu(value);
+ index = le16_to_cpu(index);
+
+ status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
+ USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,
+ USB_CTRL_GET_TIMEOUT);
+
+ if (status < 0)
+ deb_info("ep 0 read error (status = %d)\n",status);
+
+ deb_data("<<< ");
+ debug_dump(rx,rxlen,deb_data);
+
+ return status; /* length in case of success */
+}
+
+int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
+{
+ u8 buf[3] = { REQUEST_SET_GPIO, gpio, ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6) };
+ return dib0700_ctrl_wr(d,buf,3);
+}
+
+/*
+ * I2C master xfer function
+ */
+static int dib0700_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg *msg,int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int i,len;
+ u8 buf[255];
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ for (i = 0; i < num; i++) {
+ /* fill in the address */
+ buf[1] = (msg[i].addr << 1);
+ /* fill the buffer */
+ memcpy(&buf[2], msg[i].buf, msg[i].len);
+
+ /* write/read request */
+ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+ buf[0] = REQUEST_I2C_READ;
+ buf[1] |= 1;
+
+ /* special thing in the current firmware: when length is zero the read-failed */
+ if ((len = dib0700_ctrl_rd(d, buf, msg[i].len + 2, msg[i+1].buf, msg[i+1].len)) <= 0) {
+ deb_info("I2C read failed on address %x\n", msg[i].addr);
+ break;
+ }
+
+ msg[i+1].len = len;
+
+ i++;
+ } else {
+ buf[0] = REQUEST_I2C_WRITE;
+ if (dib0700_ctrl_wr(d, buf, msg[i].len + 2) < 0)
+ break;
+ }
+ }
+
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+struct i2c_algorithm dib0700_i2c_algo = {
+ .master_xfer = dib0700_i2c_xfer,
+ .functionality = dib0700_i2c_func,
+};
+
+int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
+ struct dvb_usb_device_description **desc, int *cold)
+{
+ u8 b[16];
+ s16 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev,0),
+ REQUEST_GET_VERSION, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);
+
+ deb_info("FW GET_VERSION length: %d\n",ret);
+
+ *cold = ret <= 0;
+
+ deb_info("cold: %d\n", *cold);
+ return 0;
+}
+
+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)
+{
+ u8 b[10];
+ b[0] = REQUEST_SET_CLOCK;
+ b[1] = (en_pll << 7) | (pll_src << 6) | (pll_range << 5) | (clock_gpio3 << 4);
+ b[2] = (pll_prediv >> 8) & 0xff; // MSB
+ b[3] = pll_prediv & 0xff; // LSB
+ b[4] = (pll_loopdiv >> 8) & 0xff; // MSB
+ b[5] = pll_loopdiv & 0xff; // LSB
+ b[6] = (free_div >> 8) & 0xff; // MSB
+ b[7] = free_div & 0xff; // LSB
+ b[8] = (dsuScaler >> 8) & 0xff; // MSB
+ b[9] = dsuScaler & 0xff; // LSB
+
+ return dib0700_ctrl_wr(d, b, 10);
+}
+
+int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
+{
+ switch (clk_MHz) {
+ case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
+ default: return -EINVAL;
+ }
+ return 0;
+}
+
+static int dib0700_jumpram(struct usb_device *udev, u32 address)
+{
+ int ret, actlen;
+ u8 buf[8] = { REQUEST_JUMPRAM, 0, 0, 0,
+ (address >> 24) & 0xff,
+ (address >> 16) & 0xff,
+ (address >> 8) & 0xff,
+ address & 0xff };
+
+ if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
+ deb_fw("jumpram to 0x%x failed\n",address);
+ return ret;
+ }
+ if (actlen != 8) {
+ deb_fw("jumpram to 0x%x failed\n",address);
+ return -EIO;
+ }
+ return 0;
+}
+
+int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
+{
+ struct hexline hx;
+ int pos = 0, ret, act_len;
+
+ u8 buf[260];
+
+ while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
+ deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",hx.addr, hx.len, hx.chk);
+
+ buf[0] = hx.len;
+ buf[1] = (hx.addr >> 8) & 0xff;
+ buf[2] = hx.addr & 0xff;
+ buf[3] = hx.type;
+ memcpy(&buf[4],hx.data,hx.len);
+ buf[4+hx.len] = hx.chk;
+
+ ret = usb_bulk_msg(udev,
+ usb_sndbulkpipe(udev, 0x01),
+ buf,
+ hx.len + 5,
+ &act_len,
+ 1000);
+
+ if (ret < 0) {
+ err("firmware download failed at %d with %d",pos,ret);
+ return ret;
+ }
+ }
+
+ if (ret == 0) {
+ /* start the firmware */
+ if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
+ info("firmware started successfully.");
+ msleep(500);
+ }
+ } else
+ ret = -EIO;
+
+ return ret;
+}
+
+int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+ struct dib0700_state *st = adap->dev->priv;
+ u8 b[4];
+
+ b[0] = REQUEST_ENABLE_VIDEO;
+ b[1] = 0x00;
+ b[2] = (0x01 << 4); /* Master mode */
+ b[3] = 0x00;
+
+ deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);
+
+ if (onoff)
+ st->channel_state |= 1 << adap->id;
+ else
+ st->channel_state &= ~(1 << adap->id);
+
+ b[2] |= st->channel_state;
+
+ if (st->channel_state) /* if at least one channel is active */
+ b[1] = (0x01 << 4) | 0x00;
+
+ deb_info("data for streaming: %x %x\n",b[1],b[2]);
+
+ return dib0700_ctrl_wr(adap->dev, b, 4);
+}
+
+static int dib0700_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int i;
+
+ for (i = 0; i < dib0700_device_count; i++)
+ if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE, NULL) == 0)
+ return 0;
+
+ return -ENODEV;
+}
+
+static struct usb_driver dib0700_driver = {
+ .name = "dvb_usb_dib0700",
+ .probe = dib0700_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = dib0700_usb_id_table,
+};
+
+/* module stuff */
+static int __init dib0700_module_init(void)
+{
+ int result;
+ info("loaded with support for %d different device-types", dib0700_device_count);
+ if ((result = usb_register(&dib0700_driver))) {
+ err("usb_register failed. Error number %d",result);
+ return result;
+ }
+
+ return 0;
+}
+
+static void __exit dib0700_module_exit(void)
+{
+ /* deregister this driver from the USB subsystem */
+ usb_deregister(&dib0700_driver);
+}
+
+module_init (dib0700_module_init);
+module_exit (dib0700_module_exit);
+
+MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff