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 */ 29 static int dvb_usb_dtv5100_debug; 30 module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644); 31 MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); 32 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 33 34 struct dtv5100_state { 35 unsigned char data[80]; 36 }; 37 38 static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr, 39 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 40 { 41 struct dtv5100_state *st = d->priv; 42 u8 request; 43 u8 type; 44 u16 value; 45 u16 index; 46 47 switch (wlen) { 48 case 1: 49 /* write { reg }, read { value } */ 50 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ : 51 DTV5100_TUNER_READ); 52 type = USB_TYPE_VENDOR | USB_DIR_IN; 53 value = 0; 54 break; 55 case 2: 56 /* write { reg, value } */ 57 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE : 58 DTV5100_TUNER_WRITE); 59 type = USB_TYPE_VENDOR | USB_DIR_OUT; 60 value = wbuf[1]; 61 break; 62 default: 63 warn("wlen = %x, aborting.", wlen); 64 return -EINVAL; 65 } 66 index = (addr << 8) + wbuf[0]; 67 68 memcpy(st->data, rbuf, rlen); 69 msleep(1); /* avoid I2C errors */ 70 return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), request, 71 type, value, index, st->data, rlen, 72 DTV5100_USB_TIMEOUT); 73 } 74 75 /* I2C */ 76 static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 77 int num) 78 { 79 struct dvb_usb_device *d = i2c_get_adapdata(adap); 80 int i; 81 82 if (num > 2) 83 return -EINVAL; 84 85 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 86 return -EAGAIN; 87 88 for (i = 0; i < num; i++) { 89 /* write/read request */ 90 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 91 if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 92 msg[i].len, msg[i+1].buf, 93 msg[i+1].len) < 0) 94 break; 95 i++; 96 } else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 97 msg[i].len, NULL, 0) < 0) 98 break; 99 } 100 101 mutex_unlock(&d->i2c_mutex); 102 return i; 103 } 104 105 static u32 dtv5100_i2c_func(struct i2c_adapter *adapter) 106 { 107 return I2C_FUNC_I2C; 108 } 109 110 static struct i2c_algorithm dtv5100_i2c_algo = { 111 .master_xfer = dtv5100_i2c_xfer, 112 .functionality = dtv5100_i2c_func, 113 }; 114 115 /* Callbacks for DVB USB */ 116 static struct zl10353_config dtv5100_zl10353_config = { 117 .demod_address = DTV5100_DEMOD_ADDR, 118 .no_tuner = 1, 119 .parallel_ts = 1, 120 }; 121 122 static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap) 123 { 124 adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config, 125 &adap->dev->i2c_adap); 126 if (adap->fe_adap[0].fe == NULL) 127 return -EIO; 128 129 /* disable i2c gate, or it won't work... is this safe? */ 130 adap->fe_adap[0].fe->ops.i2c_gate_ctrl = NULL; 131 132 return 0; 133 } 134 135 static struct qt1010_config dtv5100_qt1010_config = { 136 .i2c_address = DTV5100_TUNER_ADDR 137 }; 138 139 static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap) 140 { 141 return dvb_attach(qt1010_attach, 142 adap->fe_adap[0].fe, &adap->dev->i2c_adap, 143 &dtv5100_qt1010_config) == NULL ? -ENODEV : 0; 144 } 145 146 /* DVB USB Driver stuff */ 147 static struct dvb_usb_device_properties dtv5100_properties; 148 149 static int dtv5100_probe(struct usb_interface *intf, 150 const struct usb_device_id *id) 151 { 152 int i, ret; 153 struct usb_device *udev = interface_to_usbdev(intf); 154 155 /* initialize non qt1010/zl10353 part? */ 156 for (i = 0; dtv5100_init[i].request; i++) { 157 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 158 dtv5100_init[i].request, 159 USB_TYPE_VENDOR | USB_DIR_OUT, 160 dtv5100_init[i].value, 161 dtv5100_init[i].index, NULL, 0, 162 DTV5100_USB_TIMEOUT); 163 if (ret) 164 return ret; 165 } 166 167 ret = dvb_usb_device_init(intf, &dtv5100_properties, 168 THIS_MODULE, NULL, adapter_nr); 169 if (ret) 170 return ret; 171 172 return 0; 173 } 174 175 static struct usb_device_id dtv5100_table[] = { 176 { USB_DEVICE(0x06be, 0xa232) }, 177 { } /* Terminating entry */ 178 }; 179 MODULE_DEVICE_TABLE(usb, dtv5100_table); 180 181 static struct dvb_usb_device_properties dtv5100_properties = { 182 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 183 .usb_ctrl = DEVICE_SPECIFIC, 184 185 .size_of_priv = sizeof(struct dtv5100_state), 186 187 .num_adapters = 1, 188 .adapter = {{ 189 .num_frontends = 1, 190 .fe = {{ 191 .frontend_attach = dtv5100_frontend_attach, 192 .tuner_attach = dtv5100_tuner_attach, 193 194 .stream = { 195 .type = USB_BULK, 196 .count = 8, 197 .endpoint = 0x82, 198 .u = { 199 .bulk = { 200 .buffersize = 4096, 201 } 202 } 203 }, 204 }}, 205 } }, 206 207 .i2c_algo = &dtv5100_i2c_algo, 208 209 .num_device_descs = 1, 210 .devices = { 211 { 212 .name = "AME DTV-5100 USB2.0 DVB-T", 213 .cold_ids = { NULL }, 214 .warm_ids = { &dtv5100_table[0], NULL }, 215 }, 216 } 217 }; 218 219 static struct usb_driver dtv5100_driver = { 220 .name = "dvb_usb_dtv5100", 221 .probe = dtv5100_probe, 222 .disconnect = dvb_usb_device_exit, 223 .id_table = dtv5100_table, 224 }; 225 226 module_usb_driver(dtv5100_driver); 227 228 MODULE_AUTHOR(DRIVER_AUTHOR); 229 MODULE_DESCRIPTION(DRIVER_DESC); 230 MODULE_LICENSE("GPL"); 231