/* * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. * * Copyright (C) 2006 Antti Palosaari * * 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; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "au6610.h" #include "zl10353.h" #include "qt1010.h" /* debug */ static int dvb_usb_au6610_debug; module_param_named(debug, dvb_usb_au6610_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) { int ret; u16 index; u8 *usb_buf; /* * allocate enough for all known requests, * read returns 5 and write 6 bytes */ usb_buf = kmalloc(6, GFP_KERNEL); if (!usb_buf) return -ENOMEM; switch (wlen) { case 1: index = wbuf[0] << 8; break; case 2: index = wbuf[0] << 8; index += wbuf[1]; break; default: warn("wlen = %x, aborting.", wlen); ret = -EINVAL; goto error; } ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, usb_buf, 6, AU6610_USB_TIMEOUT); if (ret < 0) goto error; switch (operation) { case AU6610_REQ_I2C_READ: case AU6610_REQ_USB_READ: /* requested value is always 5th byte in buffer */ rbuf[0] = usb_buf[4]; } error: kfree(usb_buf); return ret; } static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr, u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) { u8 request; u8 wo = (rbuf == NULL || rlen == 0); /* write-only */ if (wo) { request = AU6610_REQ_I2C_WRITE; } else { /* rw */ request = AU6610_REQ_I2C_READ; } return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen); } /* I2C */ static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); int i; if (num > 2) return -EINVAL; if (mutex_lock_interruptible(&d->i2c_mutex) < 0) return -EAGAIN; for (i = 0; i < num; i++) { /* write/read request */ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, msg[i].len, msg[i+1].buf, msg[i+1].len) < 0) break; i++; } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, msg[i].len, NULL, 0) < 0) break; } mutex_unlock(&d->i2c_mutex); return i; } static u32 au6610_i2c_func(struct i2c_adapter *adapter) { return I2C_FUNC_I2C; } static struct i2c_algorithm au6610_i2c_algo = { .master_xfer = au6610_i2c_xfer, .functionality = au6610_i2c_func, }; /* Callbacks for DVB USB */ static struct zl10353_config au6610_zl10353_config = { .demod_address = 0x0f, .no_tuner = 1, .parallel_ts = 1, }; static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) { adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, &adap->dev->i2c_adap); if (adap->fe_adap[0].fe == NULL) return -ENODEV; return 0; } static struct qt1010_config au6610_qt1010_config = { .i2c_address = 0x62 }; static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap) { return dvb_attach(qt1010_attach, adap->fe_adap[0].fe, &adap->dev->i2c_adap, &au6610_qt1010_config) == NULL ? -ENODEV : 0; } /* DVB USB Driver stuff */ static struct dvb_usb_device_properties au6610_properties; static int au6610_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct dvb_usb_device *d; struct usb_host_interface *alt; int ret; if (intf->num_altsetting < AU6610_ALTSETTING_COUNT) return -ENODEV; ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d, adapter_nr); if (ret == 0) { alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING); if (alt == NULL) { deb_info("%s: no alt found!\n", __func__); return -ENODEV; } ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting); } return ret; } static struct usb_device_id au6610_table [] = { { USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, au6610_table); static struct dvb_usb_device_properties au6610_properties = { .caps = DVB_USB_IS_AN_I2C_ADAPTER, .usb_ctrl = DEVICE_SPECIFIC, .size_of_priv = 0, .num_adapters = 1, .adapter = { { .num_frontends = 1, .fe = {{ .frontend_attach = au6610_zl10353_frontend_attach, .tuner_attach = au6610_qt1010_tuner_attach, .stream = { .type = USB_ISOC, .count = 5, .endpoint = 0x82, .u = { .isoc = { .framesperurb = 40, .framesize = 942, .interval = 1, } } }, }}, } }, .i2c_algo = &au6610_i2c_algo, .num_device_descs = 1, .devices = { { .name = "Sigmatek DVB-110 DVB-T USB2.0", .cold_ids = {NULL}, .warm_ids = {&au6610_table[0], NULL}, }, } }; static struct usb_driver au6610_driver = { .name = "dvb_usb_au6610", .probe = au6610_probe, .disconnect = dvb_usb_device_exit, .id_table = au6610_table, }; /* module stuff */ static int __init au6610_module_init(void) { int ret; ret = usb_register(&au6610_driver); if (ret) err("usb_register failed. Error number %d", ret); return ret; } static void __exit au6610_module_exit(void) { /* deregister this driver from the USB subsystem */ usb_deregister(&au6610_driver); } module_init(au6610_module_init); module_exit(au6610_module_exit); MODULE_AUTHOR("Antti Palosaari "); MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0"); MODULE_VERSION("0.1"); MODULE_LICENSE("GPL");