diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/au6610.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/au6610.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/au6610.c b/drivers/media/usb/dvb-usb-v2/au6610.c new file mode 100644 index 0000000000..be223fc8aa --- /dev/null +++ b/drivers/media/usb/dvb-usb-v2/au6610.c @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. + * + * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> + */ + +#include "au6610.h" +#include "zl10353.h" +#include "qt1010.h" + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, + u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) +{ + int ret; + u16 index; + u8 *usb_buf; + + /* + * allocate enough for all known requests, + * read returns 5 and write 6 bytes + */ + usb_buf = kmalloc(6, GFP_KERNEL); + if (!usb_buf) + return -ENOMEM; + + switch (wlen) { + case 1: + index = wbuf[0] << 8; + break; + case 2: + index = wbuf[0] << 8; + index += wbuf[1]; + break; + default: + dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n", + KBUILD_MODNAME, wlen); + ret = -EINVAL; + goto error; + } + + ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, + USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, + usb_buf, 6, AU6610_USB_TIMEOUT); + + dvb_usb_dbg_usb_control_msg(d->udev, operation, + (USB_TYPE_VENDOR|USB_DIR_IN), addr << 1, index, + usb_buf, 6); + + if (ret < 0) + goto error; + + switch (operation) { + case AU6610_REQ_I2C_READ: + case AU6610_REQ_USB_READ: + /* requested value is always 5th byte in buffer */ + rbuf[0] = usb_buf[4]; + } +error: + kfree(usb_buf); + return ret; +} + +static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr, + u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) +{ + u8 request; + u8 wo = (rbuf == NULL || rlen == 0); /* write-only */ + + if (wo) { + request = AU6610_REQ_I2C_WRITE; + } else { /* rw */ + request = AU6610_REQ_I2C_READ; + } + + return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen); +} + + +/* I2C */ +static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], + int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int i; + + if (num > 2) + return -EINVAL; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + for (i = 0; i < num; i++) { + /* write/read request */ + if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { + if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, + msg[i].len, msg[i+1].buf, + msg[i+1].len) < 0) + break; + i++; + } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, + msg[i].len, NULL, 0) < 0) + break; + } + + mutex_unlock(&d->i2c_mutex); + return i; +} + + +static u32 au6610_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm au6610_i2c_algo = { + .master_xfer = au6610_i2c_xfer, + .functionality = au6610_i2c_func, +}; + +/* Callbacks for DVB USB */ +static struct zl10353_config au6610_zl10353_config = { + .demod_address = 0x0f, + .no_tuner = 1, + .parallel_ts = 1, +}; + +static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) +{ + adap->fe[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config, + &adap_to_d(adap)->i2c_adap); + if (adap->fe[0] == NULL) + return -ENODEV; + + return 0; +} + +static struct qt1010_config au6610_qt1010_config = { + .i2c_address = 0x62 +}; + +static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap) +{ + return dvb_attach(qt1010_attach, adap->fe[0], + &adap_to_d(adap)->i2c_adap, + &au6610_qt1010_config) == NULL ? -ENODEV : 0; +} + +static int au6610_init(struct dvb_usb_device *d) +{ + /* TODO: this functionality belongs likely to the streaming control */ + /* bInterfaceNumber 0, bAlternateSetting 5 */ + return usb_set_interface(d->udev, 0, 5); +} + +static struct dvb_usb_device_properties au6610_props = { + .driver_name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .adapter_nr = adapter_nr, + + .i2c_algo = &au6610_i2c_algo, + .frontend_attach = au6610_zl10353_frontend_attach, + .tuner_attach = au6610_qt1010_tuner_attach, + .init = au6610_init, + + .num_adapters = 1, + .adapter = { + { + .stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1), + }, + }, +}; + +static const struct usb_device_id au6610_id_table[] = { + { DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110, + &au6610_props, "Sigmatek DVB-110", NULL) }, + { } +}; +MODULE_DEVICE_TABLE(usb, au6610_id_table); + +static struct usb_driver au6610_driver = { + .name = KBUILD_MODNAME, + .id_table = au6610_id_table, + .probe = dvb_usbv2_probe, + .disconnect = dvb_usbv2_disconnect, + .suspend = dvb_usbv2_suspend, + .resume = dvb_usbv2_resume, + .reset_resume = dvb_usbv2_reset_resume, + .no_dynamic_id = 1, + .soft_unbind = 1, +}; + +module_usb_driver(au6610_driver); + +MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); +MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0"); +MODULE_VERSION("0.1"); +MODULE_LICENSE("GPL"); |