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path: root/drivers/media/usb/dvb-usb-v2/ec168.c
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Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/ec168.c')
-rw-r--r--drivers/media/usb/dvb-usb-v2/ec168.c385
1 files changed, 385 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/ec168.c b/drivers/media/usb/dvb-usb-v2/ec168.c
new file mode 100644
index 00000000000..5c68f3918bc
--- /dev/null
+++ b/drivers/media/usb/dvb-usb-v2/ec168.c
@@ -0,0 +1,385 @@
+/*
+ * E3C EC168 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "ec168.h"
+#include "ec100.h"
+#include "mxl5005s.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int ec168_ctrl_msg(struct dvb_usb_device *d, struct ec168_req *req)
+{
+ int ret;
+ unsigned int pipe;
+ u8 request, requesttype;
+ u8 *buf;
+
+ switch (req->cmd) {
+ case DOWNLOAD_FIRMWARE:
+ case GPIO:
+ case WRITE_I2C:
+ case STREAMING_CTRL:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+ request = req->cmd;
+ break;
+ case READ_I2C:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+ request = req->cmd;
+ break;
+ case GET_CONFIG:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+ request = CONFIG;
+ break;
+ case SET_CONFIG:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+ request = CONFIG;
+ break;
+ case WRITE_DEMOD:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+ request = DEMOD_RW;
+ break;
+ case READ_DEMOD:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+ request = DEMOD_RW;
+ break;
+ default:
+ dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
+ KBUILD_MODNAME, req->cmd);
+ ret = -EINVAL;
+ goto error;
+ }
+
+ buf = kmalloc(req->size, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
+ /* write */
+ memcpy(buf, req->data, req->size);
+ pipe = usb_sndctrlpipe(d->udev, 0);
+ } else {
+ /* read */
+ pipe = usb_rcvctrlpipe(d->udev, 0);
+ }
+
+ msleep(1); /* avoid I2C errors */
+
+ ret = usb_control_msg(d->udev, pipe, request, requesttype, req->value,
+ req->index, buf, req->size, EC168_USB_TIMEOUT);
+
+ dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, req->value,
+ req->index, buf, req->size);
+
+ if (ret < 0)
+ goto err_dealloc;
+ else
+ ret = 0;
+
+ /* read request, copy returned data to return buf */
+ if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
+ memcpy(req->data, buf, req->size);
+
+ kfree(buf);
+ return ret;
+
+err_dealloc:
+ kfree(buf);
+error:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+/* I2C */
+static struct ec100_config ec168_ec100_config;
+
+static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+ int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ struct ec168_req req;
+ int i = 0;
+ int ret;
+
+ if (num > 2)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ while (i < num) {
+ if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
+ if (msg[i].addr == ec168_ec100_config.demod_address) {
+ req.cmd = READ_DEMOD;
+ req.value = 0;
+ req.index = 0xff00 + msg[i].buf[0]; /* reg */
+ req.size = msg[i+1].len; /* bytes to read */
+ req.data = &msg[i+1].buf[0];
+ ret = ec168_ctrl_msg(d, &req);
+ i += 2;
+ } else {
+ dev_err(&d->udev->dev, "%s: I2C read not " \
+ "implemented\n",
+ KBUILD_MODNAME);
+ ret = -EOPNOTSUPP;
+ i += 2;
+ }
+ } else {
+ if (msg[i].addr == ec168_ec100_config.demod_address) {
+ req.cmd = WRITE_DEMOD;
+ req.value = msg[i].buf[1]; /* val */
+ req.index = 0xff00 + msg[i].buf[0]; /* reg */
+ req.size = 0;
+ req.data = NULL;
+ ret = ec168_ctrl_msg(d, &req);
+ i += 1;
+ } else {
+ req.cmd = WRITE_I2C;
+ req.value = msg[i].buf[0]; /* val */
+ req.index = 0x0100 + msg[i].addr; /* I2C addr */
+ req.size = msg[i].len-1;
+ req.data = &msg[i].buf[1];
+ ret = ec168_ctrl_msg(d, &req);
+ i += 1;
+ }
+ }
+ if (ret)
+ goto error;
+
+ }
+ ret = i;
+
+error:
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+static u32 ec168_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm ec168_i2c_algo = {
+ .master_xfer = ec168_i2c_xfer,
+ .functionality = ec168_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static int ec168_identify_state(struct dvb_usb_device *d, const char **name)
+{
+ int ret;
+ u8 reply;
+ struct ec168_req req = {GET_CONFIG, 0, 1, sizeof(reply), &reply};
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ ret = ec168_ctrl_msg(d, &req);
+ if (ret)
+ goto error;
+
+ dev_dbg(&d->udev->dev, "%s: reply=%02x\n", __func__, reply);
+
+ if (reply == 0x01)
+ ret = WARM;
+ else
+ ret = COLD;
+
+ return ret;
+error:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static int ec168_download_firmware(struct dvb_usb_device *d,
+ const struct firmware *fw)
+{
+ int ret, len, remaining;
+ struct ec168_req req = {DOWNLOAD_FIRMWARE, 0, 0, 0, NULL};
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ #define LEN_MAX 2048 /* max packet size */
+ for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) {
+ len = remaining;
+ if (len > LEN_MAX)
+ len = LEN_MAX;
+
+ req.size = len;
+ req.data = (u8 *) &fw->data[fw->size - remaining];
+ req.index = fw->size - remaining;
+
+ ret = ec168_ctrl_msg(d, &req);
+ if (ret) {
+ dev_err(&d->udev->dev,
+ "%s: firmware download failed=%d\n",
+ KBUILD_MODNAME, ret);
+ goto error;
+ }
+ }
+
+ req.size = 0;
+
+ /* set "warm"? */
+ req.cmd = SET_CONFIG;
+ req.value = 0;
+ req.index = 0x0001;
+ ret = ec168_ctrl_msg(d, &req);
+ if (ret)
+ goto error;
+
+ /* really needed - no idea what does */
+ req.cmd = GPIO;
+ req.value = 0;
+ req.index = 0x0206;
+ ret = ec168_ctrl_msg(d, &req);
+ if (ret)
+ goto error;
+
+ /* activate tuner I2C? */
+ req.cmd = WRITE_I2C;
+ req.value = 0;
+ req.index = 0x00c6;
+ ret = ec168_ctrl_msg(d, &req);
+ if (ret)
+ goto error;
+
+ return ret;
+error:
+ dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
+static struct ec100_config ec168_ec100_config = {
+ .demod_address = 0xff, /* not real address, demod is integrated */
+};
+
+static int ec168_ec100_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ struct dvb_usb_device *d = adap_to_d(adap);
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ adap->fe[0] = dvb_attach(ec100_attach, &ec168_ec100_config,
+ &d->i2c_adap);
+ if (adap->fe[0] == NULL)
+ return -ENODEV;
+
+ return 0;
+}
+
+static struct mxl5005s_config ec168_mxl5003s_config = {
+ .i2c_address = 0xc6,
+ .if_freq = IF_FREQ_4570000HZ,
+ .xtal_freq = CRYSTAL_FREQ_16000000HZ,
+ .agc_mode = MXL_SINGLE_AGC,
+ .tracking_filter = MXL_TF_OFF,
+ .rssi_enable = MXL_RSSI_ENABLE,
+ .cap_select = MXL_CAP_SEL_ENABLE,
+ .div_out = MXL_DIV_OUT_4,
+ .clock_out = MXL_CLOCK_OUT_DISABLE,
+ .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
+ .top = MXL5005S_TOP_25P2,
+ .mod_mode = MXL_DIGITAL_MODE,
+ .if_mode = MXL_ZERO_IF,
+ .AgcMasterByte = 0x00,
+};
+
+static int ec168_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ struct dvb_usb_device *d = adap_to_d(adap);
+ dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+ return dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
+ &ec168_mxl5003s_config) == NULL ? -ENODEV : 0;
+}
+
+static int ec168_streaming_ctrl(struct dvb_frontend *fe, int onoff)
+{
+ struct dvb_usb_device *d = fe_to_d(fe);
+ struct ec168_req req = {STREAMING_CTRL, 0x7f01, 0x0202, 0, NULL};
+ dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
+
+ if (onoff)
+ req.index = 0x0102;
+ return ec168_ctrl_msg(d, &req);
+}
+
+/* DVB USB Driver stuff */
+/* bInterfaceNumber 0 is HID
+ * bInterfaceNumber 1 is DVB-T */
+static struct dvb_usb_device_properties ec168_props = {
+ .driver_name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ .adapter_nr = adapter_nr,
+ .bInterfaceNumber = 1,
+
+ .identify_state = ec168_identify_state,
+ .firmware = EC168_FIRMWARE,
+ .download_firmware = ec168_download_firmware,
+
+ .i2c_algo = &ec168_i2c_algo,
+ .frontend_attach = ec168_ec100_frontend_attach,
+ .tuner_attach = ec168_mxl5003s_tuner_attach,
+ .streaming_ctrl = ec168_streaming_ctrl,
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .stream = DVB_USB_STREAM_BULK(0x82, 6, 32 * 512),
+ }
+ },
+};
+
+static const struct dvb_usb_driver_info ec168_driver_info = {
+ .name = "E3C EC168 reference design",
+ .props = &ec168_props,
+};
+
+static const struct usb_device_id ec168_id[] = {
+ { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168),
+ .driver_info = (kernel_ulong_t) &ec168_driver_info },
+ { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2),
+ .driver_info = (kernel_ulong_t) &ec168_driver_info },
+ { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3),
+ .driver_info = (kernel_ulong_t) &ec168_driver_info },
+ { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4),
+ .driver_info = (kernel_ulong_t) &ec168_driver_info },
+ { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5),
+ .driver_info = (kernel_ulong_t) &ec168_driver_info },
+ {}
+};
+MODULE_DEVICE_TABLE(usb, ec168_id);
+
+static struct usb_driver ec168_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = ec168_id,
+ .probe = dvb_usbv2_probe,
+ .disconnect = dvb_usbv2_disconnect,
+ .suspend = dvb_usbv2_suspend,
+ .resume = dvb_usbv2_resume,
+ .no_dynamic_id = 1,
+ .soft_unbind = 1,
+};
+
+module_usb_driver(ec168_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("E3C EC168 driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(EC168_FIRMWARE);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 12:37:04 +0000