1/* 2 * DVB USB Linux driver for AME DTV-5100 USB2.0 DVB-T 3 * 4 * Copyright (C) 2008 Antoine Jacquet <royale@zerezo.com> 5 * http://royale.zerezo.com/dtv5100/ 6 * 7 * Inspired by gl861.c and au6610.c drivers 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 */ 23 24#include "dtv5100.h" 25#include "zl10353.h" 26#include "qt1010.h" 27 28/* debug */ 29static int dvb_usb_dtv5100_debug; 30module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644); 31MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); 32DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 33 34static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr, 35 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 36{ 37 u8 request; 38 u8 type; 39 u16 value; 40 u16 index; 41 42 switch (wlen) { 43 case 1: 44 /* write { reg }, read { value } */ 45 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ : 46 DTV5100_TUNER_READ); 47 type = USB_TYPE_VENDOR | USB_DIR_IN; 48 value = 0; 49 break; 50 case 2: 51 /* write { reg, value } */ 52 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE : 53 DTV5100_TUNER_WRITE); 54 type = USB_TYPE_VENDOR | USB_DIR_OUT; 55 value = wbuf[1]; 56 break; 57 default: 58 warn("wlen = %x, aborting.", wlen); 59 return -EINVAL; 60 } 61 index = (addr << 8) + wbuf[0]; 62 63 msleep(1); /* avoid I2C errors */ 64 return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), request, 65 type, value, index, rbuf, rlen, 66 DTV5100_USB_TIMEOUT); 67} 68 69/* I2C */ 70static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 71 int num) 72{ 73 struct dvb_usb_device *d = i2c_get_adapdata(adap); 74 int i; 75 76 if (num > 2) 77 return -EINVAL; 78 79 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 80 return -EAGAIN; 81 82 for (i = 0; i < num; i++) { 83 /* write/read request */ 84 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 85 if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 86 msg[i].len, msg[i+1].buf, 87 msg[i+1].len) < 0) 88 break; 89 i++; 90 } else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 91 msg[i].len, NULL, 0) < 0) 92 break; 93 } 94 95 mutex_unlock(&d->i2c_mutex); 96 return i; 97} 98 99static u32 dtv5100_i2c_func(struct i2c_adapter *adapter) 100{ 101 return I2C_FUNC_I2C; 102} 103 104static struct i2c_algorithm dtv5100_i2c_algo = { 105 .master_xfer = dtv5100_i2c_xfer, 106 .functionality = dtv5100_i2c_func, 107}; 108 109/* Callbacks for DVB USB */ 110static struct zl10353_config dtv5100_zl10353_config = { 111 .demod_address = DTV5100_DEMOD_ADDR, 112 .no_tuner = 1, 113 .parallel_ts = 1, 114}; 115 116static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap) 117{ 118 adap->fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config, 119 &adap->dev->i2c_adap); 120 if (adap->fe == NULL) 121 return -EIO; 122 123 /* disable i2c gate, or it won't work... is this safe? */ 124 adap->fe->ops.i2c_gate_ctrl = NULL; 125 126 return 0; 127} 128 129static struct qt1010_config dtv5100_qt1010_config = { 130 .i2c_address = DTV5100_TUNER_ADDR 131}; 132 133static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap) 134{ 135 return dvb_attach(qt1010_attach, 136 adap->fe, &adap->dev->i2c_adap, 137 &dtv5100_qt1010_config) == NULL ? -ENODEV : 0; 138} 139 140/* DVB USB Driver stuff */ 141static struct dvb_usb_device_properties dtv5100_properties; 142 143static int dtv5100_probe(struct usb_interface *intf, 144 const struct usb_device_id *id) 145{ 146 int i, ret; 147 struct usb_device *udev = interface_to_usbdev(intf); 148 149 /* initialize non qt1010/zl10353 part? */ 150 for (i = 0; dtv5100_init[i].request; i++) { 151 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 152 dtv5100_init[i].request, 153 USB_TYPE_VENDOR | USB_DIR_OUT, 154 dtv5100_init[i].value, 155 dtv5100_init[i].index, NULL, 0, 156 DTV5100_USB_TIMEOUT); 157 if (ret) 158 return ret; 159 } 160 161 ret = dvb_usb_device_init(intf, &dtv5100_properties, 162 THIS_MODULE, NULL, adapter_nr); 163 if (ret) 164 return ret; 165 166 return 0; 167} 168 169static struct usb_device_id dtv5100_table[] = { 170 { USB_DEVICE(0x06be, 0xa232) }, 171 { } /* Terminating entry */ 172}; 173MODULE_DEVICE_TABLE(usb, dtv5100_table); 174 175static struct dvb_usb_device_properties dtv5100_properties = { 176 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 177 .usb_ctrl = DEVICE_SPECIFIC, 178 179 .size_of_priv = 0, 180 181 .num_adapters = 1, 182 .adapter = {{ 183 .frontend_attach = dtv5100_frontend_attach, 184 .tuner_attach = dtv5100_tuner_attach, 185 186 .stream = { 187 .type = USB_BULK, 188 .count = 8, 189 .endpoint = 0x82, 190 .u = { 191 .bulk = { 192 .buffersize = 4096, 193 } 194 } 195 }, 196 } }, 197 198 .i2c_algo = &dtv5100_i2c_algo, 199 200 .num_device_descs = 1, 201 .devices = { 202 { 203 .name = "AME DTV-5100 USB2.0 DVB-T", 204 .cold_ids = { NULL }, 205 .warm_ids = { &dtv5100_table[0], NULL }, 206 }, 207 } 208}; 209 210static struct usb_driver dtv5100_driver = { 211 .name = "dvb_usb_dtv5100", 212 .probe = dtv5100_probe, 213 .disconnect = dvb_usb_device_exit, 214 .id_table = dtv5100_table, 215}; 216 217/* module stuff */ 218static int __init dtv5100_module_init(void) 219{ 220 int ret; 221 222 ret = usb_register(&dtv5100_driver); 223 if (ret) 224 err("usb_register failed. Error number %d", ret); 225 226 return ret; 227} 228 229static void __exit dtv5100_module_exit(void) 230{ 231 /* deregister this driver from the USB subsystem */ 232 usb_deregister(&dtv5100_driver); 233} 234 235module_init(dtv5100_module_init); 236module_exit(dtv5100_module_exit); 237 238MODULE_AUTHOR(DRIVER_AUTHOR); 239MODULE_DESCRIPTION(DRIVER_DESC); 240MODULE_LICENSE("GPL"); 241