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 20 #include "dtv5100.h" 21 #include "zl10353.h" 22 #include "qt1010.h" 23 24 /* debug */ 25 static int dvb_usb_dtv5100_debug; 26 module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644); 27 MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); 28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 29 30 struct dtv5100_state { 31 unsigned char data[80]; 32 }; 33 34 static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr, 35 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 36 { 37 struct dtv5100_state *st = d->priv; 38 u8 request; 39 u8 type; 40 u16 value; 41 u16 index; 42 43 switch (wlen) { 44 case 1: 45 /* write { reg }, read { value } */ 46 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ : 47 DTV5100_TUNER_READ); 48 type = USB_TYPE_VENDOR | USB_DIR_IN; 49 value = 0; 50 break; 51 case 2: 52 /* write { reg, value } */ 53 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE : 54 DTV5100_TUNER_WRITE); 55 type = USB_TYPE_VENDOR | USB_DIR_OUT; 56 value = wbuf[1]; 57 break; 58 default: 59 warn("wlen = %x, aborting.", wlen); 60 return -EINVAL; 61 } 62 index = (addr << 8) + wbuf[0]; 63 64 memcpy(st->data, rbuf, rlen); 65 msleep(1); /* avoid I2C errors */ 66 return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), request, 67 type, value, index, st->data, rlen, 68 DTV5100_USB_TIMEOUT); 69 } 70 71 /* I2C */ 72 static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 73 int num) 74 { 75 struct dvb_usb_device *d = i2c_get_adapdata(adap); 76 int i; 77 78 if (num > 2) 79 return -EINVAL; 80 81 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 82 return -EAGAIN; 83 84 for (i = 0; i < num; i++) { 85 /* write/read request */ 86 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 87 if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 88 msg[i].len, msg[i+1].buf, 89 msg[i+1].len) < 0) 90 break; 91 i++; 92 } else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf, 93 msg[i].len, NULL, 0) < 0) 94 break; 95 } 96 97 mutex_unlock(&d->i2c_mutex); 98 return i; 99 } 100 101 static u32 dtv5100_i2c_func(struct i2c_adapter *adapter) 102 { 103 return I2C_FUNC_I2C; 104 } 105 106 static struct i2c_algorithm dtv5100_i2c_algo = { 107 .master_xfer = dtv5100_i2c_xfer, 108 .functionality = dtv5100_i2c_func, 109 }; 110 111 /* Callbacks for DVB USB */ 112 static struct zl10353_config dtv5100_zl10353_config = { 113 .demod_address = DTV5100_DEMOD_ADDR, 114 .no_tuner = 1, 115 .parallel_ts = 1, 116 }; 117 118 static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap) 119 { 120 adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config, 121 &adap->dev->i2c_adap); 122 if (adap->fe_adap[0].fe == NULL) 123 return -EIO; 124 125 /* disable i2c gate, or it won't work... is this safe? */ 126 adap->fe_adap[0].fe->ops.i2c_gate_ctrl = NULL; 127 128 return 0; 129 } 130 131 static struct qt1010_config dtv5100_qt1010_config = { 132 .i2c_address = DTV5100_TUNER_ADDR 133 }; 134 135 static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap) 136 { 137 return dvb_attach(qt1010_attach, 138 adap->fe_adap[0].fe, &adap->dev->i2c_adap, 139 &dtv5100_qt1010_config) == NULL ? -ENODEV : 0; 140 } 141 142 /* DVB USB Driver stuff */ 143 static struct dvb_usb_device_properties dtv5100_properties; 144 145 static int dtv5100_probe(struct usb_interface *intf, 146 const struct usb_device_id *id) 147 { 148 int i, ret; 149 struct usb_device *udev = interface_to_usbdev(intf); 150 151 /* initialize non qt1010/zl10353 part? */ 152 for (i = 0; dtv5100_init[i].request; i++) { 153 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 154 dtv5100_init[i].request, 155 USB_TYPE_VENDOR | USB_DIR_OUT, 156 dtv5100_init[i].value, 157 dtv5100_init[i].index, NULL, 0, 158 DTV5100_USB_TIMEOUT); 159 if (ret) 160 return ret; 161 } 162 163 ret = dvb_usb_device_init(intf, &dtv5100_properties, 164 THIS_MODULE, NULL, adapter_nr); 165 if (ret) 166 return ret; 167 168 return 0; 169 } 170 171 static struct usb_device_id dtv5100_table[] = { 172 { USB_DEVICE(0x06be, 0xa232) }, 173 { } /* Terminating entry */ 174 }; 175 MODULE_DEVICE_TABLE(usb, dtv5100_table); 176 177 static struct dvb_usb_device_properties dtv5100_properties = { 178 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 179 .usb_ctrl = DEVICE_SPECIFIC, 180 181 .size_of_priv = sizeof(struct dtv5100_state), 182 183 .num_adapters = 1, 184 .adapter = {{ 185 .num_frontends = 1, 186 .fe = {{ 187 .frontend_attach = dtv5100_frontend_attach, 188 .tuner_attach = dtv5100_tuner_attach, 189 190 .stream = { 191 .type = USB_BULK, 192 .count = 8, 193 .endpoint = 0x82, 194 .u = { 195 .bulk = { 196 .buffersize = 4096, 197 } 198 } 199 }, 200 }}, 201 } }, 202 203 .i2c_algo = &dtv5100_i2c_algo, 204 205 .num_device_descs = 1, 206 .devices = { 207 { 208 .name = "AME DTV-5100 USB2.0 DVB-T", 209 .cold_ids = { NULL }, 210 .warm_ids = { &dtv5100_table[0], NULL }, 211 }, 212 } 213 }; 214 215 static struct usb_driver dtv5100_driver = { 216 .name = "dvb_usb_dtv5100", 217 .probe = dtv5100_probe, 218 .disconnect = dvb_usb_device_exit, 219 .id_table = dtv5100_table, 220 }; 221 222 module_usb_driver(dtv5100_driver); 223 224 MODULE_AUTHOR(DRIVER_AUTHOR); 225 MODULE_DESCRIPTION(DRIVER_DESC); 226 MODULE_LICENSE("GPL"); 227