V4L/DVB (11216): Add driver for Intel CE6230 DVB-T USB2.0
Add driver for Intel CE6230 DVB-T USB 2.0 COFDM demodulator
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-usb/ce6230.c b/drivers/media/dvb/dvb-usb/ce6230.c
new file mode 100644
index 0000000..8a30590
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/ce6230.c
@@ -0,0 +1,328 @@
+/*
+ * DVB USB Linux driver for Intel CE6230 DVB-T USB2.0 receiver
+ *
+ * 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 "ce6230.h"
+#include "zl10353.h"
+#include "mxl5005s.h"
+
+/* debug */
+static int dvb_usb_ce6230_debug;
+module_param_named(debug, dvb_usb_ce6230_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static struct zl10353_config ce6230_zl10353_config;
+
+static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
+{
+ int ret;
+ unsigned int pipe;
+ u8 request;
+ u8 requesttype;
+ u16 value;
+ u16 index;
+ u8 buf[req->data_len];
+
+ request = req->cmd;
+ value = req->value;
+ index = req->index;
+
+ switch (req->cmd) {
+ case I2C_READ:
+ case DEMOD_READ:
+ case REG_READ:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+ break;
+ case I2C_WRITE:
+ case DEMOD_WRITE:
+ case REG_WRITE:
+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+ break;
+ default:
+ err("unknown command:%02x", req->cmd);
+ ret = -EPERM;
+ goto error;
+ }
+
+ if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
+ /* write */
+ memcpy(buf, req->data, req->data_len);
+ pipe = usb_sndctrlpipe(udev, 0);
+ } else {
+ /* read */
+ pipe = usb_rcvctrlpipe(udev, 0);
+ }
+
+ msleep(1); /* avoid I2C errors */
+
+ ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
+ buf, sizeof(buf), CE6230_USB_TIMEOUT);
+
+ ce6230_debug_dump(request, requesttype, value, index, buf,
+ req->data_len, deb_xfer);
+
+ if (ret < 0)
+ deb_info("%s: usb_control_msg failed:%d\n", __func__, ret);
+ 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->data_len);
+
+error:
+ return ret;
+}
+
+static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
+{
+ return ce6230_rw_udev(d->udev, req);
+}
+
+/* I2C */
+static int ce6230_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+ int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int i = 0;
+ struct req_t req;
+ int ret;
+ memset(&req, 0, sizeof(&req));
+
+ 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 ==
+ ce6230_zl10353_config.demod_address) {
+ req.cmd = DEMOD_READ;
+ req.value = msg[i].addr >> 1;
+ req.index = msg[i].buf[0];
+ req.data_len = msg[i+1].len;
+ req.data = &msg[i+1].buf[0];
+ ret = ce6230_ctrl_msg(d, &req);
+ } else {
+ err("i2c read not implemented");
+ ret = -EPERM;
+ }
+ i += 2;
+ } else {
+ if (msg[i].addr ==
+ ce6230_zl10353_config.demod_address) {
+ req.cmd = DEMOD_WRITE;
+ req.value = msg[i].addr >> 1;
+ req.index = msg[i].buf[0];
+ req.data_len = msg[i].len-1;
+ req.data = &msg[i].buf[1];
+ ret = ce6230_ctrl_msg(d, &req);
+ } else {
+ req.cmd = I2C_WRITE;
+ req.value = 0x2000 + (msg[i].addr >> 1);
+ req.index = 0x0000;
+ req.data_len = msg[i].len;
+ req.data = &msg[i].buf[0];
+ ret = ce6230_ctrl_msg(d, &req);
+ }
+ i += 1;
+ }
+ if (ret)
+ break;
+ }
+
+ mutex_unlock(&d->i2c_mutex);
+ return ret ? ret : i;
+}
+
+static u32 ce6230_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm ce6230_i2c_algo = {
+ .master_xfer = ce6230_i2c_xfer,
+ .functionality = ce6230_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static struct zl10353_config ce6230_zl10353_config = {
+ .demod_address = 0x1e,
+ .adc_clock = 450000,
+ .if2 = 45700,
+ .no_tuner = 1,
+ .parallel_ts = 1,
+ .clock_ctl_1 = 0x34,
+ .pll_0 = 0x0e,
+};
+
+static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ deb_info("%s:\n", __func__);
+ adap->fe = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
+ &adap->dev->i2c_adap);
+ if (adap->fe == NULL)
+ return -ENODEV;
+ return 0;
+}
+
+static struct mxl5005s_config ce6230_mxl5003s_config = {
+ .i2c_address = 0xc6,
+ .if_freq = IF_FREQ_4570000HZ,
+ .xtal_freq = CRYSTAL_FREQ_16000000HZ,
+ .agc_mode = MXL_SINGLE_AGC,
+ .tracking_filter = MXL_TF_DEFAULT,
+ .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 ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ int ret;
+ deb_info("%s:\n", __func__);
+ ret = dvb_attach(mxl5005s_attach, adap->fe, &adap->dev->i2c_adap,
+ &ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
+ return ret;
+}
+
+static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+ int ret;
+ deb_info("%s: onoff:%d\n", __func__, onoff);
+
+ /* InterfaceNumber 1 / AlternateSetting 0 idle
+ InterfaceNumber 1 / AlternateSetting 1 streaming */
+ ret = usb_set_interface(d->udev, 1, onoff);
+ if (ret)
+ err("usb_set_interface failed with error:%d", ret);
+
+ return ret;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties ce6230_properties;
+
+static int ce6230_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int ret = 0;
+ struct dvb_usb_device *d = NULL;
+
+ deb_info("%s: interface:%d\n", __func__,
+ intf->cur_altsetting->desc.bInterfaceNumber);
+
+ if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
+ ret = dvb_usb_device_init(intf, &ce6230_properties, THIS_MODULE,
+ &d, adapter_nr);
+ if (ret)
+ err("init failed with error:%d\n", ret);
+ }
+
+ return ret;
+}
+
+static struct usb_device_id ce6230_table[] = {
+ { USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500) },
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, ce6230_table);
+
+static struct dvb_usb_device_properties ce6230_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .no_reconnect = 1,
+
+ .size_of_priv = 0,
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .frontend_attach = ce6230_zl10353_frontend_attach,
+ .tuner_attach = ce6230_mxl5003s_tuner_attach,
+ .stream = {
+ .type = USB_BULK,
+ .count = 6,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 512,
+ }
+ }
+ },
+ }
+ },
+
+ .power_ctrl = ce6230_power_ctrl,
+
+ .i2c_algo = &ce6230_i2c_algo,
+
+ .num_device_descs = 1,
+ .devices = {
+ {
+ .name = "Intel CE9500 reference design",
+ .cold_ids = {NULL},
+ .warm_ids = {&ce6230_table[0], NULL},
+ },
+ }
+};
+
+static struct usb_driver ce6230_driver = {
+ .name = "dvb_usb_ce6230",
+ .probe = ce6230_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = ce6230_table,
+};
+
+/* module stuff */
+static int __init ce6230_module_init(void)
+{
+ int ret;
+ deb_info("%s:\n", __func__);
+ ret = usb_register(&ce6230_driver);
+ if (ret)
+ err("usb_register failed with error:%d", ret);
+
+ return ret;
+}
+
+static void __exit ce6230_module_exit(void)
+{
+ deb_info("%s:\n", __func__);
+ /* deregister this driver from the USB subsystem */
+ usb_deregister(&ce6230_driver);
+}
+
+module_init(ce6230_module_init);
+module_exit(ce6230_module_exit);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Driver for Intel CE6230 DVB-T USB2.0");
+MODULE_LICENSE("GPL");