From 9bbe076f364aa7ba8c2e49e417a76d628ffb164c Mon Sep 17 00:00:00 2001 From: Alan Nisota Date: Sun, 14 May 2006 13:23:56 -0300 Subject: V4L/DVB (4029): [PATCH] Genpix 8PSK->USB driver (Take 2) This is a patch which includes support for the GENPIX 8PSK->USB module. The board supports QPSK, BPSK and 8PSK decoding (though I don't think it will be DVB-S2 compliant) With the following patch, the boad is equivalent to a budget card (no CA Module) The patch which adds 8psk suppot will follow, but is seperate, as it requires DVB-S2 support More info on the board can be found at www.genpix-electronics.com (and they host the requisite firmwares there as well) Signed off by: Alan Nisota Signed-off-by: Patrick Boettcher Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/gp8psk.c | 254 +++++++++++++++++++++++++++++++++++++ 1 file changed, 254 insertions(+) create mode 100644 drivers/media/dvb/dvb-usb/gp8psk.c (limited to 'drivers/media/dvb/dvb-usb/gp8psk.c') diff --git a/drivers/media/dvb/dvb-usb/gp8psk.c b/drivers/media/dvb/dvb-usb/gp8psk.c new file mode 100644 index 00000000000..d6771cbd262 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/gp8psk.c @@ -0,0 +1,254 @@ +/* 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; + } + + if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) { + release_firmware(fw); + return -EINVAL; + } + + info("downloaidng bcm4500 firmware from file '%s'",bcm4500_firmware); + + ptr = fw->data; + buf = (u8 *) 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."); + release_firmware(fw); + kfree(buf); + return -EINVAL; + } + memcpy(buf, ptr, buflen); + if (dvb_usb_generic_write(d, buf, buflen)) { + err("failed to load bcm4500 firmware."); + release_firmware(fw); + kfree(buf); + return -EIO; + } + ptr += buflen; + } + release_firmware(fw); + kfree(buf); + return 0; +} + +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 "); +MODULE_DESCRIPTION("Driver for Genpix 8psk-USB DVB-S USB2.0"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2