1/* DVB USB compliant linux driver for Sigmatek DVB-110 DVB-T USB2.0 receiver 2 * 3 * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the Free 7 * Software Foundation, version 2. 8 * 9 * see Documentation/dvb/README.dvb-usb for more information 10 */ 11 12#include "au6610.h" 13 14#include "zl10353.h" 15#include "qt1010.h" 16 17/* debug */ 18static int dvb_usb_au6610_debug; 19module_param_named(debug, dvb_usb_au6610_debug, int, 0644); 20MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); 21 22static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, 23 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 24{ 25 int ret; 26 u16 index; 27 u8 usb_buf[6]; /* enough for all known requests, 28 read returns 5 and write 6 bytes */ 29 switch (wlen) { 30 case 1: 31 index = wbuf[0] << 8; 32 break; 33 case 2: 34 index = wbuf[0] << 8; 35 index += wbuf[1]; 36 break; 37 default: 38 warn("wlen = %x, aborting.", wlen); 39 return -EINVAL; 40 } 41 42 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, 43 USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, usb_buf, 44 sizeof(usb_buf), AU6610_USB_TIMEOUT); 45 46 if (ret < 0) 47 return ret; 48 49 switch (operation) { 50 case AU6610_REQ_I2C_READ: 51 case AU6610_REQ_USB_READ: 52 /* requested value is always 5th byte in buffer */ 53 rbuf[0] = usb_buf[4]; 54 } 55 56 return ret; 57} 58 59static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr, 60 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 61{ 62 u8 request; 63 u8 wo = (rbuf == NULL || rlen == 0); /* write-only */ 64 65 if (wo) { 66 request = AU6610_REQ_I2C_WRITE; 67 } else { /* rw */ 68 request = AU6610_REQ_I2C_READ; 69 } 70 71 return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen); 72} 73 74 75/* I2C */ 76static int au6610_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 (mutex_lock_interruptible(&d->i2c_mutex) < 0) 83 return -EAGAIN; 84 85 if (num > 2) 86 return -EINVAL; 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 (au6610_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 (au6610_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 106static u32 au6610_i2c_func(struct i2c_adapter *adapter) 107{ 108 return I2C_FUNC_I2C; 109} 110 111static struct i2c_algorithm au6610_i2c_algo = { 112 .master_xfer = au6610_i2c_xfer, 113 .functionality = au6610_i2c_func, 114}; 115 116/* Callbacks for DVB USB */ 117static int au6610_identify_state(struct usb_device *udev, 118 struct dvb_usb_device_properties *props, 119 struct dvb_usb_device_description **desc, 120 int *cold) 121{ 122 *cold = 0; 123 return 0; 124} 125 126static struct zl10353_config au6610_zl10353_config = { 127 .demod_address = 0x0f, 128 .no_tuner = 1, 129 .parallel_ts = 1, 130}; 131 132static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) 133{ 134 if ((adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, 135 &adap->dev->i2c_adap)) != NULL) { 136 return 0; 137 } 138 139 return -EIO; 140} 141 142static struct qt1010_config au6610_qt1010_config = { 143 .i2c_address = 0x62 144}; 145 146static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap) 147{ 148 return dvb_attach(qt1010_attach, 149 adap->fe, &adap->dev->i2c_adap, 150 &au6610_qt1010_config) == NULL ? -ENODEV : 0; 151} 152 153/* DVB USB Driver stuff */ 154static struct dvb_usb_device_properties au6610_properties; 155 156static int au6610_probe(struct usb_interface *intf, 157 const struct usb_device_id *id) 158{ 159 struct dvb_usb_device *d; 160 struct usb_host_interface *alt; 161 int ret; 162 163 if (intf->num_altsetting < AU6610_ALTSETTING_COUNT) 164 return -ENODEV; 165 166 if ((ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d)) == 0) { 167 alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING); 168 169 if (alt == NULL) { 170 deb_rc("no alt found!\n"); 171 return -ENODEV; 172 } 173 ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, 174 alt->desc.bAlternateSetting); 175 } 176 177 return ret; 178} 179 180 181static struct usb_device_id au6610_table [] = { 182 { USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) }, 183 { } /* Terminating entry */ 184}; 185MODULE_DEVICE_TABLE (usb, au6610_table); 186 187static struct dvb_usb_device_properties au6610_properties = { 188 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 189 .usb_ctrl = DEVICE_SPECIFIC, 190 .size_of_priv = 0, 191 .identify_state = au6610_identify_state, 192 .num_adapters = 1, 193 .adapter = { 194 { 195 .frontend_attach = au6610_zl10353_frontend_attach, 196 .tuner_attach = au6610_qt1010_tuner_attach, 197 198 .stream = { 199 .type = USB_ISOC, 200 .count = 5, 201 .endpoint = 0x82, 202 .u = { 203 .isoc = { 204 .framesperurb = 40, 205 .framesize = 942, /* maximum packet size */ 206 .interval = 1.25, /* 125 us */ 207 } 208 } 209 }, 210 } 211 }, 212 .i2c_algo = &au6610_i2c_algo, 213 .num_device_descs = 1, 214 .devices = { 215 { 216 "Sigmatek DVB-110 DVB-T USB2.0", 217 { &au6610_table[0], NULL }, 218 { NULL }, 219 }, 220 } 221}; 222 223static struct usb_driver au6610_driver = { 224 .name = "dvb_usb_au6610", 225 .probe = au6610_probe, 226 .disconnect = dvb_usb_device_exit, 227 .id_table = au6610_table, 228}; 229 230/* module stuff */ 231static int __init au6610_module_init(void) 232{ 233 int ret; 234 235 if ((ret = usb_register(&au6610_driver))) { 236 err("usb_register failed. Error number %d", ret); 237 return ret; 238 } 239 240 return 0; 241} 242 243static void __exit au6610_module_exit(void) 244{ 245 /* deregister this driver from the USB subsystem */ 246 usb_deregister(&au6610_driver); 247} 248 249module_init (au6610_module_init); 250module_exit (au6610_module_exit); 251 252MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 253MODULE_DESCRIPTION("Driver Sigmatek DVB-110 DVB-T USB2.0 / AU6610"); 254MODULE_VERSION("0.1"); 255MODULE_LICENSE("GPL"); 256