259 lines
6.1 KiB
C
259 lines
6.1 KiB
C
/* DVB USB compliant Linux driver for the
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* - GENPIX 8pks/qpsk USB2.0 DVB-S module
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*
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* Copyright (C) 2006 Alan Nisota (alannisota@gmail.com)
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*
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* Thanks to GENPIX for the sample code used to implement this module.
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*
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* This module is based off the vp7045 and vp702x modules
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, version 2.
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*
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* see Documentation/dvb/README.dvb-usb for more information
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*/
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#include "gp8psk.h"
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/* debug */
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static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
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int dvb_usb_gp8psk_debug;
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module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
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int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
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{
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int ret = 0,try = 0;
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if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
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return ret;
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while (ret >= 0 && ret != blen && try < 3) {
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ret = usb_control_msg(d->udev,
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usb_rcvctrlpipe(d->udev,0),
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req,
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USB_TYPE_VENDOR | USB_DIR_IN,
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value,index,b,blen,
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2000);
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deb_info("reading number %d (ret: %d)\n",try,ret);
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try++;
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}
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if (ret < 0 || ret != blen) {
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warn("usb in operation failed.");
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ret = -EIO;
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} else
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ret = 0;
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deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
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debug_dump(b,blen,deb_xfer);
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mutex_unlock(&d->usb_mutex);
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return ret;
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}
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int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
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u16 index, u8 *b, int blen)
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{
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int ret;
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deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
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debug_dump(b,blen,deb_xfer);
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if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
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return ret;
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if (usb_control_msg(d->udev,
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usb_sndctrlpipe(d->udev,0),
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req,
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USB_TYPE_VENDOR | USB_DIR_OUT,
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value,index,b,blen,
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2000) != blen) {
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warn("usb out operation failed.");
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ret = -EIO;
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} else
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ret = 0;
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mutex_unlock(&d->usb_mutex);
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return ret;
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}
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static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
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{
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int ret;
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const struct firmware *fw = NULL;
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u8 *ptr, *buf;
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if ((ret = request_firmware(&fw, bcm4500_firmware,
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&d->udev->dev)) != 0) {
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err("did not find the bcm4500 firmware file. (%s) "
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"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
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bcm4500_firmware,ret);
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return ret;
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}
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ret = -EINVAL;
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if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
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goto out_rel_fw;
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info("downloaidng bcm4500 firmware from file '%s'",bcm4500_firmware);
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ptr = fw->data;
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buf = kmalloc(512, GFP_KERNEL | GFP_DMA);
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while (ptr[0] != 0xff) {
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u16 buflen = ptr[0] + 4;
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if (ptr + buflen >= fw->data + fw->size) {
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err("failed to load bcm4500 firmware.");
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goto out_free;
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}
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memcpy(buf, ptr, buflen);
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if (dvb_usb_generic_write(d, buf, buflen)) {
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err("failed to load bcm4500 firmware.");
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goto out_free;
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}
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ptr += buflen;
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}
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ret = 0;
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out_free:
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kfree(buf);
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out_rel_fw:
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release_firmware(fw);
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return ret;
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}
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static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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u8 status, buf;
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if (onoff) {
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gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
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if (! (status & 0x01)) /* started */
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if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
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return -EINVAL;
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if (! (status & 0x02)) /* BCM4500 firmware loaded */
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if(gp8psk_load_bcm4500fw(d))
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return EINVAL;
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if (! (status & 0x04)) /* LNB Power */
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if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
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&buf, 1))
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return EINVAL;
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/* Set DVB mode */
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if(gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
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return -EINVAL;
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gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
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} else {
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/* Turn off LNB power */
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if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
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return EINVAL;
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/* Turn off 8psk power */
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if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
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return -EINVAL;
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}
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return 0;
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}
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static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
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}
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static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
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{
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adap->fe = gp8psk_fe_attach(adap->dev);
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return 0;
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}
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static struct dvb_usb_device_properties gp8psk_properties;
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static int gp8psk_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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return dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL);
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}
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static struct usb_device_id gp8psk_usb_table [] = {
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{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_COLD) },
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{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_WARM) },
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{ 0 },
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};
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MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
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static struct dvb_usb_device_properties gp8psk_properties = {
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.usb_ctrl = CYPRESS_FX2,
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.firmware = "dvb-usb-gp8psk-01.fw",
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.num_adapters = 1,
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.adapter = {
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{
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.streaming_ctrl = gp8psk_streaming_ctrl,
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.frontend_attach = gp8psk_frontend_attach,
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/* parameter for the MPEG2-data transfer */
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.stream = {
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.type = USB_BULK,
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.count = 7,
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.endpoint = 0x82,
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.u = {
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.bulk = {
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.buffersize = 8192,
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}
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}
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},
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}
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},
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.power_ctrl = gp8psk_power_ctrl,
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.generic_bulk_ctrl_endpoint = 0x01,
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.num_device_descs = 1,
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.devices = {
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{ .name = "Genpix 8PSK-USB DVB-S USB2.0 receiver",
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.cold_ids = { &gp8psk_usb_table[0], NULL },
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.warm_ids = { &gp8psk_usb_table[1], NULL },
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},
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{ NULL },
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}
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};
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/* usb specific object needed to register this driver with the usb subsystem */
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static struct usb_driver gp8psk_usb_driver = {
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.name = "dvb_usb_gp8psk",
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.probe = gp8psk_usb_probe,
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.disconnect = dvb_usb_device_exit,
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.id_table = gp8psk_usb_table,
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};
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/* module stuff */
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static int __init gp8psk_usb_module_init(void)
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{
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int result;
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if ((result = usb_register(&gp8psk_usb_driver))) {
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err("usb_register failed. (%d)",result);
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return result;
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}
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return 0;
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}
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static void __exit gp8psk_usb_module_exit(void)
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{
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/* deregister this driver from the USB subsystem */
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usb_deregister(&gp8psk_usb_driver);
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}
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module_init(gp8psk_usb_module_init);
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module_exit(gp8psk_usb_module_exit);
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MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
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MODULE_DESCRIPTION("Driver for Genpix 8psk-USB DVB-S USB2.0");
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MODULE_VERSION("1.0");
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MODULE_LICENSE("GPL");
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