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