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366 lines
8.6 KiB
366 lines
8.6 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* E3C EC168 DVB USB driver |
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* |
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* Copyright (C) 2009 Antti Palosaari <[email protected]> |
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*/ |
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#include "ec168.h" |
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#include "ec100.h" |
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#include "mxl5005s.h" |
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); |
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static int ec168_ctrl_msg(struct dvb_usb_device *d, struct ec168_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, requesttype; |
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u8 *buf; |
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switch (req->cmd) { |
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case DOWNLOAD_FIRMWARE: |
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case GPIO: |
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case WRITE_I2C: |
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case STREAMING_CTRL: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); |
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request = req->cmd; |
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break; |
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case READ_I2C: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); |
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request = req->cmd; |
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break; |
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case GET_CONFIG: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); |
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request = CONFIG; |
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break; |
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case SET_CONFIG: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); |
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request = CONFIG; |
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break; |
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case WRITE_DEMOD: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT); |
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request = DEMOD_RW; |
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break; |
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case READ_DEMOD: |
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requesttype = (USB_TYPE_VENDOR | USB_DIR_IN); |
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request = DEMOD_RW; |
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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->size, 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->size); |
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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, req->value, |
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req->index, buf, req->size, EC168_USB_TIMEOUT); |
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dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, req->value, |
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req->index, buf, req->size); |
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if (ret < 0) |
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goto err_dealloc; |
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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->size); |
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kfree(buf); |
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return ret; |
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err_dealloc: |
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kfree(buf); |
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error: |
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
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return ret; |
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} |
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/* I2C */ |
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static struct ec100_config ec168_ec100_config; |
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static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], |
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int num) |
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{ |
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struct dvb_usb_device *d = i2c_get_adapdata(adap); |
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struct ec168_req req; |
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int i = 0; |
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int ret; |
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if (num > 2) |
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return -EINVAL; |
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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 == ec168_ec100_config.demod_address) { |
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req.cmd = READ_DEMOD; |
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req.value = 0; |
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req.index = 0xff00 + msg[i].buf[0]; /* reg */ |
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req.size = msg[i+1].len; /* bytes to read */ |
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req.data = &msg[i+1].buf[0]; |
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ret = ec168_ctrl_msg(d, &req); |
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i += 2; |
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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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i += 2; |
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} |
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} else { |
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if (msg[i].addr == ec168_ec100_config.demod_address) { |
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req.cmd = WRITE_DEMOD; |
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req.value = msg[i].buf[1]; /* val */ |
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req.index = 0xff00 + msg[i].buf[0]; /* reg */ |
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req.size = 0; |
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req.data = NULL; |
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ret = ec168_ctrl_msg(d, &req); |
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i += 1; |
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} else { |
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req.cmd = WRITE_I2C; |
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req.value = msg[i].buf[0]; /* val */ |
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req.index = 0x0100 + msg[i].addr; /* I2C addr */ |
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req.size = msg[i].len-1; |
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req.data = &msg[i].buf[1]; |
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ret = ec168_ctrl_msg(d, &req); |
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i += 1; |
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} |
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} |
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if (ret) |
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goto error; |
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} |
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ret = i; |
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error: |
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mutex_unlock(&d->i2c_mutex); |
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return ret; |
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} |
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static u32 ec168_i2c_func(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 ec168_i2c_algo = { |
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.master_xfer = ec168_i2c_xfer, |
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.functionality = ec168_i2c_func, |
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}; |
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/* Callbacks for DVB USB */ |
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static int ec168_identify_state(struct dvb_usb_device *d, const char **name) |
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{ |
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int ret; |
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u8 reply; |
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struct ec168_req req = {GET_CONFIG, 0, 1, sizeof(reply), &reply}; |
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dev_dbg(&d->udev->dev, "%s:\n", __func__); |
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ret = ec168_ctrl_msg(d, &req); |
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if (ret) |
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goto error; |
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dev_dbg(&d->udev->dev, "%s: reply=%02x\n", __func__, reply); |
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if (reply == 0x01) |
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ret = WARM; |
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else |
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ret = COLD; |
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return ret; |
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error: |
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
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return ret; |
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} |
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static int ec168_download_firmware(struct dvb_usb_device *d, |
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const struct firmware *fw) |
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{ |
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int ret, len, remaining; |
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struct ec168_req req = {DOWNLOAD_FIRMWARE, 0, 0, 0, NULL}; |
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dev_dbg(&d->udev->dev, "%s:\n", __func__); |
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#define LEN_MAX 2048 /* max packet size */ |
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for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) { |
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len = remaining; |
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if (len > LEN_MAX) |
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len = LEN_MAX; |
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req.size = len; |
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req.data = (u8 *) &fw->data[fw->size - remaining]; |
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req.index = fw->size - remaining; |
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ret = ec168_ctrl_msg(d, &req); |
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if (ret) { |
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dev_err(&d->udev->dev, |
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"%s: firmware download failed=%d\n", |
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KBUILD_MODNAME, ret); |
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goto error; |
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} |
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} |
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req.size = 0; |
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/* set "warm"? */ |
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req.cmd = SET_CONFIG; |
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req.value = 0; |
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req.index = 0x0001; |
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ret = ec168_ctrl_msg(d, &req); |
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if (ret) |
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goto error; |
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/* really needed - no idea what does */ |
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req.cmd = GPIO; |
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req.value = 0; |
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req.index = 0x0206; |
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ret = ec168_ctrl_msg(d, &req); |
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if (ret) |
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goto error; |
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/* activate tuner I2C? */ |
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req.cmd = WRITE_I2C; |
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req.value = 0; |
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req.index = 0x00c6; |
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ret = ec168_ctrl_msg(d, &req); |
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if (ret) |
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goto error; |
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return ret; |
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error: |
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dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
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return ret; |
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} |
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static struct ec100_config ec168_ec100_config = { |
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.demod_address = 0xff, /* not real address, demod is integrated */ |
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}; |
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static int ec168_ec100_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(ec100_attach, &ec168_ec100_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 ec168_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_OFF, |
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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 ec168_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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dev_dbg(&d->udev->dev, "%s:\n", __func__); |
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return dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap, |
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&ec168_mxl5003s_config) == NULL ? -ENODEV : 0; |
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} |
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static int ec168_streaming_ctrl(struct dvb_frontend *fe, int onoff) |
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{ |
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struct dvb_usb_device *d = fe_to_d(fe); |
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struct ec168_req req = {STREAMING_CTRL, 0x7f01, 0x0202, 0, NULL}; |
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dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff); |
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if (onoff) |
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req.index = 0x0102; |
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return ec168_ctrl_msg(d, &req); |
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} |
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/* DVB USB Driver stuff */ |
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/* bInterfaceNumber 0 is HID |
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* bInterfaceNumber 1 is DVB-T */ |
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static const struct dvb_usb_device_properties ec168_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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.identify_state = ec168_identify_state, |
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.firmware = EC168_FIRMWARE, |
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.download_firmware = ec168_download_firmware, |
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.i2c_algo = &ec168_i2c_algo, |
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.frontend_attach = ec168_ec100_frontend_attach, |
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.tuner_attach = ec168_mxl5003s_tuner_attach, |
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.streaming_ctrl = ec168_streaming_ctrl, |
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.num_adapters = 1, |
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.adapter = { |
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{ |
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.stream = DVB_USB_STREAM_BULK(0x82, 6, 32 * 512), |
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} |
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}, |
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}; |
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static const struct usb_device_id ec168_id[] = { |
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{ DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168, |
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&ec168_props, "E3C EC168 reference design", NULL)}, |
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{ DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2, |
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&ec168_props, "E3C EC168 reference design", NULL)}, |
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{ DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3, |
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&ec168_props, "E3C EC168 reference design", NULL)}, |
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{ DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4, |
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&ec168_props, "E3C EC168 reference design", NULL)}, |
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{ DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5, |
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&ec168_props, "E3C EC168 reference design", NULL)}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(usb, ec168_id); |
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static struct usb_driver ec168_driver = { |
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.name = KBUILD_MODNAME, |
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.id_table = ec168_id, |
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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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.no_dynamic_id = 1, |
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.soft_unbind = 1, |
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}; |
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module_usb_driver(ec168_driver); |
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MODULE_AUTHOR("Antti Palosaari <[email protected]>"); |
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MODULE_DESCRIPTION("E3C EC168 driver"); |
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MODULE_LICENSE("GPL"); |
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MODULE_FIRMWARE(EC168_FIRMWARE);
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