diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb/gp8psk.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/gp8psk.c | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/gp8psk.c b/drivers/media/usb/dvb-usb/gp8psk.c new file mode 100644 index 000000000..d97eab01c --- /dev/null +++ b/drivers/media/usb/dvb-usb/gp8psk.c @@ -0,0 +1,393 @@ +/* DVB USB compliant Linux driver for the + * - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module + * + * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com) + * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.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/media/dvb-drivers/dvb-usb.rst for more information + */ +#include "gp8psk.h" +#include "gp8psk-fe.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); + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +struct gp8psk_state { + unsigned char data[80]; +}; + +static int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, + u16 index, u8 *b, int blen) +{ + struct gp8psk_state *st = d->priv; + int ret = 0,try = 0; + + if (blen > sizeof(st->data)) + return -EIO; + + 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, st->data, blen, + 2000); + deb_info("reading number %d (ret: %d)\n",try,ret); + try++; + } + + if (ret < 0 || ret != blen) { + warn("usb in %d operation failed.", req); + ret = -EIO; + } else { + ret = 0; + memcpy(b, st->data, blen); + } + + 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; +} + +static int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, + u16 index, u8 *b, int blen) +{ + struct gp8psk_state *st = d->priv; + int ret; + + deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index); + debug_dump(b,blen,deb_xfer); + + if (blen > sizeof(st->data)) + return -EIO; + + if ((ret = mutex_lock_interruptible(&d->usb_mutex))) + return ret; + + memcpy(st->data, b, blen); + if (usb_control_msg(d->udev, + usb_sndctrlpipe(d->udev,0), + req, + USB_TYPE_VENDOR | USB_DIR_OUT, + value, index, st->data, blen, + 2000) != blen) { + warn("usb out operation failed."); + ret = -EIO; + } else + ret = 0; + mutex_unlock(&d->usb_mutex); + + return ret; +} + + +static int gp8psk_get_fw_version(struct dvb_usb_device *d, u8 *fw_vers) +{ + return gp8psk_usb_in_op(d, GET_FW_VERS, 0, 0, fw_vers, 6); +} + +static int gp8psk_get_fpga_version(struct dvb_usb_device *d, u8 *fpga_vers) +{ + return gp8psk_usb_in_op(d, GET_FPGA_VERS, 0, 0, fpga_vers, 1); +} + +static void gp8psk_info(struct dvb_usb_device *d) +{ + u8 fpga_vers, fw_vers[6]; + + if (!gp8psk_get_fw_version(d, fw_vers)) + info("FW Version = %i.%02i.%i (0x%x) Build %4i/%02i/%02i", + fw_vers[2], fw_vers[1], fw_vers[0], GP8PSK_FW_VERS(fw_vers), + 2000 + fw_vers[5], fw_vers[4], fw_vers[3]); + else + info("failed to get FW version"); + + if (!gp8psk_get_fpga_version(d, &fpga_vers)) + info("FPGA Version = %i", fpga_vers); + else + info("failed to get FPGA version"); +} + +static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d) +{ + int ret; + const struct firmware *fw = NULL; + const u8 *ptr; + u8 *buf; + if ((ret = request_firmware(&fw, bcm4500_firmware, + &d->udev->dev)) != 0) { + err("did not find the bcm4500 firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware", + bcm4500_firmware,ret); + return ret; + } + + ret = -EINVAL; + + if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) + goto out_rel_fw; + + info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware); + + ptr = fw->data; + buf = kmalloc(64, GFP_KERNEL); + if (!buf) { + ret = -ENOMEM; + goto out_rel_fw; + } + + 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; + } + if (buflen > 64) { + err("firmware chunk size bigger than 64 bytes."); + 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 = 0, buf; + int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct); + + if (onoff) { + gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); + if (! (status & bm8pskStarted)) { /* started */ + if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K) + gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0); + if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) + return -EINVAL; + gp8psk_info(d); + } + + if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) + if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */ + if(gp8psk_load_bcm4500fw(d)) + return -EINVAL; + + if (! (status & bmIntersilOn)) /* LNB Power */ + if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0, + &buf, 1)) + return -EINVAL; + + /* Set DVB mode to 1 */ + if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) + if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0)) + return -EINVAL; + /* Abort possible TS (if previous tune crashed) */ + if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0)) + return -EINVAL; + } 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; + if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K) + gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0); + } + return 0; +} + +static int gp8psk_bcm4500_reload(struct dvb_usb_device *d) +{ + u8 buf; + int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct); + + deb_xfer("reloading firmware\n"); + + /* Turn off 8psk power */ + if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1)) + return -EINVAL; + /* Turn On 8psk power */ + if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) + return -EINVAL; + /* load BCM4500 firmware */ + if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) + if (gp8psk_load_bcm4500fw(d)) + return -EINVAL; + return 0; +} + +static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0); +} + +/* Callbacks for gp8psk-fe.c */ + +static int gp8psk_fe_in(void *priv, u8 req, u16 value, + u16 index, u8 *b, int blen) +{ + struct dvb_usb_device *d = priv; + + return gp8psk_usb_in_op(d, req, value, index, b, blen); +} + +static int gp8psk_fe_out(void *priv, u8 req, u16 value, + u16 index, u8 *b, int blen) +{ + struct dvb_usb_device *d = priv; + + return gp8psk_usb_out_op(d, req, value, index, b, blen); +} + +static int gp8psk_fe_reload(void *priv) +{ + struct dvb_usb_device *d = priv; + + return gp8psk_bcm4500_reload(d); +} + +static const struct gp8psk_fe_ops gp8psk_fe_ops = { + .in = gp8psk_fe_in, + .out = gp8psk_fe_out, + .reload = gp8psk_fe_reload, +}; + +static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap) +{ + struct dvb_usb_device *d = adap->dev; + int id = le16_to_cpu(d->udev->descriptor.idProduct); + int is_rev1; + + is_rev1 = (id == USB_PID_GENPIX_8PSK_REV_1_WARM) ? true : false; + + adap->fe_adap[0].fe = dvb_attach(gp8psk_fe_attach, + &gp8psk_fe_ops, d, is_rev1); + return 0; +} + +static struct dvb_usb_device_properties gp8psk_properties; + +static int gp8psk_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + int ret; + struct usb_device *udev = interface_to_usbdev(intf); + ret = dvb_usb_device_init(intf, &gp8psk_properties, + THIS_MODULE, NULL, adapter_nr); + if (ret == 0) { + info("found Genpix USB device pID = %x (hex)", + le16_to_cpu(udev->descriptor.idProduct)); + } + return ret; +} + +static struct usb_device_id gp8psk_usb_table [] = { + { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) }, + { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) }, + { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) }, + { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) }, + { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_2) }, +/* { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) }, */ + { 0 }, +}; +MODULE_DEVICE_TABLE(usb, gp8psk_usb_table); + +static struct dvb_usb_device_properties gp8psk_properties = { + .usb_ctrl = CYPRESS_FX2, + .firmware = "dvb-usb-gp8psk-01.fw", + + .size_of_priv = sizeof(struct gp8psk_state), + + .num_adapters = 1, + .adapter = { + { + .num_frontends = 1, + .fe = {{ + .streaming_ctrl = gp8psk_streaming_ctrl, + .frontend_attach = gp8psk_frontend_attach, + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 7, + .endpoint = 0x82, + .u = { + .bulk = { + .buffersize = 8192, + } + } + }, + }}, + } + }, + .power_ctrl = gp8psk_power_ctrl, + + .generic_bulk_ctrl_endpoint = 0x01, + + .num_device_descs = 4, + .devices = { + { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver", + .cold_ids = { &gp8psk_usb_table[0], NULL }, + .warm_ids = { &gp8psk_usb_table[1], NULL }, + }, + { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver", + .cold_ids = { NULL }, + .warm_ids = { &gp8psk_usb_table[2], NULL }, + }, + { .name = "Genpix SkyWalker-1 DVB-S receiver", + .cold_ids = { NULL }, + .warm_ids = { &gp8psk_usb_table[3], NULL }, + }, + { .name = "Genpix SkyWalker-2 DVB-S receiver", + .cold_ids = { NULL }, + .warm_ids = { &gp8psk_usb_table[4], NULL }, + }, + { NULL }, + } +}; + +/* 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_usb_driver(gp8psk_usb_driver); + +MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>"); +MODULE_DESCRIPTION("Driver for Genpix DVB-S"); +MODULE_VERSION("1.1"); +MODULE_LICENSE("GPL"); |