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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.4 *5 * Copyright (C) 2006 Antti Palosaari <crope@iki.fi>6 */7 8#include "au6610.h"9#include "zl10353.h"10#include "qt1010.h"11 12DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);13 14static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,15 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)16{17 int ret;18 u16 index;19 u8 *usb_buf;20 21 /*22 * allocate enough for all known requests,23 * read returns 5 and write 6 bytes24 */25 usb_buf = kmalloc(6, GFP_KERNEL);26 if (!usb_buf)27 return -ENOMEM;28 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 dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",39 KBUILD_MODNAME, wlen);40 ret = -EINVAL;41 goto error;42 }43 44 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,45 USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index,46 usb_buf, 6, AU6610_USB_TIMEOUT);47 48 dvb_usb_dbg_usb_control_msg(d->udev, operation,49 (USB_TYPE_VENDOR|USB_DIR_IN), addr << 1, index,50 usb_buf, 6);51 52 if (ret < 0)53 goto error;54 55 switch (operation) {56 case AU6610_REQ_I2C_READ:57 case AU6610_REQ_USB_READ:58 /* requested value is always 5th byte in buffer */59 rbuf[0] = usb_buf[4];60 }61error:62 kfree(usb_buf);63 return ret;64}65 66static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,67 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)68{69 u8 request;70 u8 wo = (rbuf == NULL || rlen == 0); /* write-only */71 72 if (wo) {73 request = AU6610_REQ_I2C_WRITE;74 } else { /* rw */75 request = AU6610_REQ_I2C_READ;76 }77 78 return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);79}80 81 82/* I2C */83static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],84 int num)85{86 struct dvb_usb_device *d = i2c_get_adapdata(adap);87 int i;88 89 if (num > 2)90 return -EINVAL;91 92 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)93 return -EAGAIN;94 95 for (i = 0; i < num; i++) {96 /* write/read request */97 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {98 if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,99 msg[i].len, msg[i+1].buf,100 msg[i+1].len) < 0)101 break;102 i++;103 } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,104 msg[i].len, NULL, 0) < 0)105 break;106 }107 108 mutex_unlock(&d->i2c_mutex);109 return i;110}111 112 113static u32 au6610_i2c_func(struct i2c_adapter *adapter)114{115 return I2C_FUNC_I2C;116}117 118static struct i2c_algorithm au6610_i2c_algo = {119 .master_xfer = au6610_i2c_xfer,120 .functionality = au6610_i2c_func,121};122 123/* Callbacks for DVB USB */124static struct zl10353_config au6610_zl10353_config = {125 .demod_address = 0x0f,126 .no_tuner = 1,127 .parallel_ts = 1,128};129 130static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)131{132 adap->fe[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config,133 &adap_to_d(adap)->i2c_adap);134 if (adap->fe[0] == NULL)135 return -ENODEV;136 137 return 0;138}139 140static struct qt1010_config au6610_qt1010_config = {141 .i2c_address = 0x62142};143 144static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)145{146 return dvb_attach(qt1010_attach, adap->fe[0],147 &adap_to_d(adap)->i2c_adap,148 &au6610_qt1010_config) == NULL ? -ENODEV : 0;149}150 151static int au6610_init(struct dvb_usb_device *d)152{153 /* TODO: this functionality belongs likely to the streaming control */154 /* bInterfaceNumber 0, bAlternateSetting 5 */155 return usb_set_interface(d->udev, 0, 5);156}157 158static struct dvb_usb_device_properties au6610_props = {159 .driver_name = KBUILD_MODNAME,160 .owner = THIS_MODULE,161 .adapter_nr = adapter_nr,162 163 .i2c_algo = &au6610_i2c_algo,164 .frontend_attach = au6610_zl10353_frontend_attach,165 .tuner_attach = au6610_qt1010_tuner_attach,166 .init = au6610_init,167 168 .num_adapters = 1,169 .adapter = {170 {171 .stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1),172 },173 },174};175 176static const struct usb_device_id au6610_id_table[] = {177 { DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110,178 &au6610_props, "Sigmatek DVB-110", NULL) },179 { }180};181MODULE_DEVICE_TABLE(usb, au6610_id_table);182 183static struct usb_driver au6610_driver = {184 .name = KBUILD_MODNAME,185 .id_table = au6610_id_table,186 .probe = dvb_usbv2_probe,187 .disconnect = dvb_usbv2_disconnect,188 .suspend = dvb_usbv2_suspend,189 .resume = dvb_usbv2_resume,190 .reset_resume = dvb_usbv2_reset_resume,191 .no_dynamic_id = 1,192 .soft_unbind = 1,193};194 195module_usb_driver(au6610_driver);196 197MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");198MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");199MODULE_VERSION("0.1");200MODULE_LICENSE("GPL");201