1/* 2 * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. 3 * 4 * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21#include "au6610.h" 22#include "zl10353.h" 23#include "qt1010.h" 24 25/* debug */ 26static int dvb_usb_au6610_debug; 27module_param_named(debug, dvb_usb_au6610_debug, int, 0644); 28MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); 29DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 30 31static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, 32 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 33{ 34 int ret; 35 u16 index; 36 u8 *usb_buf; 37 38 /* 39 * allocate enough for all known requests, 40 * read returns 5 and write 6 bytes 41 */ 42 usb_buf = kmalloc(6, GFP_KERNEL); 43 if (!usb_buf) 44 return -ENOMEM; 45 46 switch (wlen) { 47 case 1: 48 index = wbuf[0] << 8; 49 break; 50 case 2: 51 index = wbuf[0] << 8; 52 index += wbuf[1]; 53 break; 54 default: 55 warn("wlen = %x, aborting.", wlen); 56 ret = -EINVAL; 57 goto error; 58 } 59 60 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, 61 USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, 62 usb_buf, 6, AU6610_USB_TIMEOUT); 63 if (ret < 0) 64 goto error; 65 66 switch (operation) { 67 case AU6610_REQ_I2C_READ: 68 case AU6610_REQ_USB_READ: 69 /* requested value is always 5th byte in buffer */ 70 rbuf[0] = usb_buf[4]; 71 } 72error: 73 kfree(usb_buf); 74 return ret; 75} 76 77static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr, 78 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 79{ 80 u8 request; 81 u8 wo = (rbuf == NULL || rlen == 0); /* write-only */ 82 83 if (wo) { 84 request = AU6610_REQ_I2C_WRITE; 85 } else { /* rw */ 86 request = AU6610_REQ_I2C_READ; 87 } 88 89 return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen); 90} 91 92 93/* I2C */ 94static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 95 int num) 96{ 97 struct dvb_usb_device *d = i2c_get_adapdata(adap); 98 int i; 99 100 if (num > 2) 101 return -EINVAL; 102 103 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 104 return -EAGAIN; 105 106 for (i = 0; i < num; i++) { 107 /* write/read request */ 108 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 109 if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, 110 msg[i].len, msg[i+1].buf, 111 msg[i+1].len) < 0) 112 break; 113 i++; 114 } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, 115 msg[i].len, NULL, 0) < 0) 116 break; 117 } 118 119 mutex_unlock(&d->i2c_mutex); 120 return i; 121} 122 123 124static u32 au6610_i2c_func(struct i2c_adapter *adapter) 125{ 126 return I2C_FUNC_I2C; 127} 128 129static struct i2c_algorithm au6610_i2c_algo = { 130 .master_xfer = au6610_i2c_xfer, 131 .functionality = au6610_i2c_func, 132}; 133 134/* Callbacks for DVB USB */ 135static struct zl10353_config au6610_zl10353_config = { 136 .demod_address = 0x0f, 137 .no_tuner = 1, 138 .parallel_ts = 1, 139}; 140 141static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) 142{ 143 adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, 144 &adap->dev->i2c_adap); 145 if (adap->fe_adap[0].fe == NULL) 146 return -ENODEV; 147 148 return 0; 149} 150 151static struct qt1010_config au6610_qt1010_config = { 152 .i2c_address = 0x62 153}; 154 155static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap) 156{ 157 return dvb_attach(qt1010_attach, 158 adap->fe_adap[0].fe, &adap->dev->i2c_adap, 159 &au6610_qt1010_config) == NULL ? -ENODEV : 0; 160} 161 162/* DVB USB Driver stuff */ 163static struct dvb_usb_device_properties au6610_properties; 164 165static int au6610_probe(struct usb_interface *intf, 166 const struct usb_device_id *id) 167{ 168 struct dvb_usb_device *d; 169 struct usb_host_interface *alt; 170 int ret; 171 172 if (intf->num_altsetting < AU6610_ALTSETTING_COUNT) 173 return -ENODEV; 174 175 ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d, 176 adapter_nr); 177 if (ret == 0) { 178 alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING); 179 180 if (alt == NULL) { 181 deb_info("%s: no alt found!\n", __func__); 182 return -ENODEV; 183 } 184 ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, 185 alt->desc.bAlternateSetting); 186 } 187 188 return ret; 189} 190 191static struct usb_device_id au6610_table [] = { 192 { USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) }, 193 { } /* Terminating entry */ 194}; 195MODULE_DEVICE_TABLE(usb, au6610_table); 196 197static struct dvb_usb_device_properties au6610_properties = { 198 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 199 200 .usb_ctrl = DEVICE_SPECIFIC, 201 202 .size_of_priv = 0, 203 204 .num_adapters = 1, 205 .adapter = { 206 { 207 .num_frontends = 1, 208 .fe = {{ 209 .frontend_attach = au6610_zl10353_frontend_attach, 210 .tuner_attach = au6610_qt1010_tuner_attach, 211 212 .stream = { 213 .type = USB_ISOC, 214 .count = 5, 215 .endpoint = 0x82, 216 .u = { 217 .isoc = { 218 .framesperurb = 40, 219 .framesize = 942, 220 .interval = 1, 221 } 222 } 223 }, 224 }}, 225 } 226 }, 227 228 .i2c_algo = &au6610_i2c_algo, 229 230 .num_device_descs = 1, 231 .devices = { 232 { 233 .name = "Sigmatek DVB-110 DVB-T USB2.0", 234 .cold_ids = {NULL}, 235 .warm_ids = {&au6610_table[0], NULL}, 236 }, 237 } 238}; 239 240static struct usb_driver au6610_driver = { 241 .name = "dvb_usb_au6610", 242 .probe = au6610_probe, 243 .disconnect = dvb_usb_device_exit, 244 .id_table = au6610_table, 245}; 246 247module_usb_driver(au6610_driver); 248 249MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 250MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0"); 251MODULE_VERSION("0.1"); 252MODULE_LICENSE("GPL"); 253