1 /* DVB USB compliant Linux driver for the
2 * - GENPIX 8pks/qpsk USB2.0 DVB-S module
4 * Copyright (C) 2006 Alan Nisota (alannisota@gmail.com)
6 * Thanks to GENPIX for the sample code used to implement this module.
8 * This module is based off the vp7045 and vp702x modules
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation, version 2.
14 * see Documentation/dvb/README.dvb-usb for more information
19 static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
20 int dvb_usb_gp8psk_debug;
21 module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
22 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
24 int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
28 if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
31 while (ret >= 0 && ret != blen && try < 3) {
32 ret = usb_control_msg(d->udev,
33 usb_rcvctrlpipe(d->udev,0),
35 USB_TYPE_VENDOR | USB_DIR_IN,
38 deb_info("reading number %d (ret: %d)\n",try,ret);
42 if (ret < 0 || ret != blen) {
43 warn("usb in operation failed.");
48 deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
49 debug_dump(b,blen,deb_xfer);
51 mutex_unlock(&d->usb_mutex);
56 int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
57 u16 index, u8 *b, int blen)
61 deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
62 debug_dump(b,blen,deb_xfer);
64 if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
67 if (usb_control_msg(d->udev,
68 usb_sndctrlpipe(d->udev,0),
70 USB_TYPE_VENDOR | USB_DIR_OUT,
73 warn("usb out operation failed.");
77 mutex_unlock(&d->usb_mutex);
82 static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
85 const struct firmware *fw = NULL;
87 if ((ret = request_firmware(&fw, bcm4500_firmware,
88 &d->udev->dev)) != 0) {
89 err("did not find the bcm4500 firmware file. (%s) "
90 "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
91 bcm4500_firmware,ret);
95 if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) {
100 info("downloaidng bcm4500 firmware from file '%s'",bcm4500_firmware);
103 buf = (u8 *) kmalloc(512, GFP_KERNEL | GFP_DMA);
105 while (ptr[0] != 0xff) {
106 u16 buflen = ptr[0] + 4;
107 if (ptr + buflen >= fw->data + fw->size) {
108 err("failed to load bcm4500 firmware.");
109 release_firmware(fw);
113 memcpy(buf, ptr, buflen);
114 if (dvb_usb_generic_write(d, buf, buflen)) {
115 err("failed to load bcm4500 firmware.");
116 release_firmware(fw);
122 release_firmware(fw);
127 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
131 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
132 if (! (status & 0x01)) /* started */
133 if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
136 if (! (status & 0x02)) /* BCM4500 firmware loaded */
137 if(gp8psk_load_bcm4500fw(d))
140 if (! (status & 0x04)) /* LNB Power */
141 if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
146 if(gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
148 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
150 /* Turn off LNB power */
151 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
153 /* Turn off 8psk power */
154 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
162 static int gp8psk_streaming_ctrl(struct dvb_usb_device *d, int onoff)
164 return gp8psk_usb_out_op(d, ARM_TRANSFER, onoff, 0 , NULL, 0);
167 static int gp8psk_frontend_attach(struct dvb_usb_device *d)
169 d->fe = gp8psk_fe_attach(d);
174 static struct dvb_usb_properties gp8psk_properties;
176 static int gp8psk_usb_probe(struct usb_interface *intf,
177 const struct usb_device_id *id)
179 return dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL);
182 static struct usb_device_id gp8psk_usb_table [] = {
183 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_COLD) },
184 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_WARM) },
187 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
189 static struct dvb_usb_properties gp8psk_properties = {
192 .usb_ctrl = CYPRESS_FX2,
193 .firmware = "dvb-usb-gp8psk-01.fw",
195 .streaming_ctrl = gp8psk_streaming_ctrl,
196 .power_ctrl = gp8psk_power_ctrl,
197 .frontend_attach = gp8psk_frontend_attach,
199 .generic_bulk_ctrl_endpoint = 0x01,
200 /* parameter for the MPEG2-data transfer */
202 .type = DVB_USB_BULK,
212 .num_device_descs = 1,
214 { .name = "Genpix 8PSK-USB DVB-S USB2.0 receiver",
215 .cold_ids = { &gp8psk_usb_table[0], NULL },
216 .warm_ids = { &gp8psk_usb_table[1], NULL },
222 /* usb specific object needed to register this driver with the usb subsystem */
223 static struct usb_driver gp8psk_usb_driver = {
224 .name = "dvb_usb_gp8psk",
225 .probe = gp8psk_usb_probe,
226 .disconnect = dvb_usb_device_exit,
227 .id_table = gp8psk_usb_table,
231 static int __init gp8psk_usb_module_init(void)
234 if ((result = usb_register(&gp8psk_usb_driver))) {
235 err("usb_register failed. (%d)",result);
242 static void __exit gp8psk_usb_module_exit(void)
244 /* deregister this driver from the USB subsystem */
245 usb_deregister(&gp8psk_usb_driver);
248 module_init(gp8psk_usb_module_init);
249 module_exit(gp8psk_usb_module_exit);
251 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
252 MODULE_DESCRIPTION("Driver for Genpix 8psk-USB DVB-S USB2.0");
253 MODULE_VERSION("1.0");
254 MODULE_LICENSE("GPL");