289 lines
6.9 KiB
C
289 lines
6.9 KiB
C
/*
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* Intel CE6230 DVB USB driver
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*
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* Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include "ce6230.h"
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
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{
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int ret;
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unsigned int pipe;
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u8 request;
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u8 requesttype;
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u16 value;
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u16 index;
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u8 *buf;
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request = req->cmd;
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value = req->value;
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index = req->index;
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switch (req->cmd) {
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case I2C_READ:
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case DEMOD_READ:
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case REG_READ:
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requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
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break;
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case I2C_WRITE:
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case DEMOD_WRITE:
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case REG_WRITE:
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requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
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break;
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default:
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dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
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KBUILD_MODNAME, req->cmd);
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ret = -EINVAL;
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goto error;
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}
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buf = kmalloc(req->data_len, GFP_KERNEL);
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if (!buf) {
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ret = -ENOMEM;
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goto error;
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}
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if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
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/* write */
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memcpy(buf, req->data, req->data_len);
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pipe = usb_sndctrlpipe(d->udev, 0);
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} else {
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/* read */
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pipe = usb_rcvctrlpipe(d->udev, 0);
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}
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msleep(1); /* avoid I2C errors */
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ret = usb_control_msg(d->udev, pipe, request, requesttype, value, index,
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buf, req->data_len, CE6230_USB_TIMEOUT);
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dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, value, index,
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buf, req->data_len);
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if (ret < 0)
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dev_err(&d->udev->dev, "%s: usb_control_msg() failed=%d\n",
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KBUILD_MODNAME, ret);
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else
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ret = 0;
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/* read request, copy returned data to return buf */
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if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
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memcpy(req->data, buf, req->data_len);
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kfree(buf);
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error:
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return ret;
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}
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/* I2C */
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static struct zl10353_config ce6230_zl10353_config;
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static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,
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struct i2c_msg msg[], int num)
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{
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int ret = 0, i = 0;
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struct usb_req req;
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if (num > 2)
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return -EOPNOTSUPP;
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memset(&req, 0, sizeof(req));
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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while (i < num) {
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if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
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if (msg[i].addr ==
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ce6230_zl10353_config.demod_address) {
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req.cmd = DEMOD_READ;
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req.value = msg[i].addr >> 1;
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req.index = msg[i].buf[0];
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req.data_len = msg[i+1].len;
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req.data = &msg[i+1].buf[0];
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ret = ce6230_ctrl_msg(d, &req);
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} else {
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dev_err(&d->udev->dev, "%s: I2C read not " \
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"implemented\n",
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KBUILD_MODNAME);
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ret = -EOPNOTSUPP;
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}
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i += 2;
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} else {
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if (msg[i].addr ==
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ce6230_zl10353_config.demod_address) {
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req.cmd = DEMOD_WRITE;
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req.value = msg[i].addr >> 1;
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req.index = msg[i].buf[0];
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req.data_len = msg[i].len-1;
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req.data = &msg[i].buf[1];
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ret = ce6230_ctrl_msg(d, &req);
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} else {
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req.cmd = I2C_WRITE;
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req.value = 0x2000 + (msg[i].addr >> 1);
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req.index = 0x0000;
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req.data_len = msg[i].len;
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req.data = &msg[i].buf[0];
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ret = ce6230_ctrl_msg(d, &req);
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}
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i += 1;
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}
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if (ret)
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break;
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}
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mutex_unlock(&d->i2c_mutex);
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return ret ? ret : i;
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}
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static u32 ce6230_i2c_functionality(struct i2c_adapter *adapter)
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{
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return I2C_FUNC_I2C;
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}
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static struct i2c_algorithm ce6230_i2c_algorithm = {
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.master_xfer = ce6230_i2c_master_xfer,
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.functionality = ce6230_i2c_functionality,
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};
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/* Callbacks for DVB USB */
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static struct zl10353_config ce6230_zl10353_config = {
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.demod_address = 0x1e,
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.adc_clock = 450000,
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.if2 = 45700,
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.no_tuner = 1,
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.parallel_ts = 1,
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.clock_ctl_1 = 0x34,
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.pll_0 = 0x0e,
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};
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static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
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{
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struct dvb_usb_device *d = adap_to_d(adap);
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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adap->fe[0] = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
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&d->i2c_adap);
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if (adap->fe[0] == NULL)
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return -ENODEV;
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return 0;
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}
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static struct mxl5005s_config ce6230_mxl5003s_config = {
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.i2c_address = 0xc6,
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.if_freq = IF_FREQ_4570000HZ,
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.xtal_freq = CRYSTAL_FREQ_16000000HZ,
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.agc_mode = MXL_SINGLE_AGC,
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.tracking_filter = MXL_TF_DEFAULT,
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.rssi_enable = MXL_RSSI_ENABLE,
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.cap_select = MXL_CAP_SEL_ENABLE,
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.div_out = MXL_DIV_OUT_4,
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.clock_out = MXL_CLOCK_OUT_DISABLE,
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.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
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.top = MXL5005S_TOP_25P2,
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.mod_mode = MXL_DIGITAL_MODE,
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.if_mode = MXL_ZERO_IF,
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.AgcMasterByte = 0x00,
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};
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static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
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{
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struct dvb_usb_device *d = adap_to_d(adap);
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int ret;
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dev_dbg(&d->udev->dev, "%s:\n", __func__);
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ret = dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
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&ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
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return ret;
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}
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static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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int ret;
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dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
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/* InterfaceNumber 1 / AlternateSetting 0 idle
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InterfaceNumber 1 / AlternateSetting 1 streaming */
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ret = usb_set_interface(d->udev, 1, onoff);
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if (ret)
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dev_err(&d->udev->dev, "%s: usb_set_interface() failed=%d\n",
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KBUILD_MODNAME, ret);
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return ret;
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}
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/* DVB USB Driver stuff */
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static struct dvb_usb_device_properties ce6230_props = {
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.driver_name = KBUILD_MODNAME,
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.owner = THIS_MODULE,
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.adapter_nr = adapter_nr,
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.bInterfaceNumber = 1,
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.i2c_algo = &ce6230_i2c_algorithm,
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.power_ctrl = ce6230_power_ctrl,
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.frontend_attach = ce6230_zl10353_frontend_attach,
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.tuner_attach = ce6230_mxl5003s_tuner_attach,
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.num_adapters = 1,
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.adapter = {
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{
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.stream = {
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.type = USB_BULK,
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.count = 6,
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.endpoint = 0x82,
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.u = {
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.bulk = {
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.buffersize = (16 * 512),
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}
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}
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},
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}
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},
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};
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static const struct usb_device_id ce6230_id_table[] = {
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{ DVB_USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500,
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&ce6230_props, "Intel CE9500 reference design", NULL) },
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{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310,
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&ce6230_props, "AVerMedia A310 USB 2.0 DVB-T tuner", NULL) },
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{ }
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};
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MODULE_DEVICE_TABLE(usb, ce6230_id_table);
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static struct usb_driver ce6230_usb_driver = {
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.name = KBUILD_MODNAME,
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.id_table = ce6230_id_table,
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.probe = dvb_usbv2_probe,
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.disconnect = dvb_usbv2_disconnect,
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.suspend = dvb_usbv2_suspend,
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.resume = dvb_usbv2_resume,
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.reset_resume = dvb_usbv2_reset_resume,
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.no_dynamic_id = 1,
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.soft_unbind = 1,
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};
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module_usb_driver(ce6230_usb_driver);
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MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
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MODULE_DESCRIPTION("Intel CE6230 driver");
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MODULE_LICENSE("GPL");
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