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>

5 files changed, 409 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig
index 5b0c8cc25fdf..6103caad1644 100644
--- a/drivers/media/dvb/dvb-usb/Kconfig
+++ b/drivers/media/dvb/dvb-usb/Kconfig
@@ -304,3 +304,11 @@ config DVB_USB_AF9015
         select MEDIA_TUNER_MC44S803 if !MEDIA_TUNER_CUSTOMISE
         help
           Say Y here to support the Afatech AF9015 based DVB-T USB2.0 receiver
+
+config DVB_USB_CE6230
+        tristate "Intel CE6230 DVB-T USB2.0 support"
+        depends on DVB_USB && EXPERIMENTAL
+        select DVB_ZL10353
+        select MEDIA_TUNER_MXL5005S if !MEDIA_TUNER_CUSTOMIZE
+        help
+          Say Y here to support the Intel CE6230 DVB-T USB2.0 receiver
diff --git a/drivers/media/dvb/dvb-usb/Makefile b/drivers/media/dvb/dvb-usb/Makefile
index 3122b7cc2c23..f92734ed777a 100644
--- a/drivers/media/dvb/dvb-usb/Makefile
+++ b/drivers/media/dvb/dvb-usb/Makefile
@@ -76,6 +76,8 @@ obj-$(CONFIG_DVB_USB_AF9015) += dvb-usb-af9015.o
 dvb-usb-cinergyT2-objs = cinergyT2-core.o cinergyT2-fe.o
 obj-$(CONFIG_DVB_USB_CINERGY_T2) += dvb-usb-cinergyT2.o
 
+dvb-usb-ce6230-objs = ce6230.o
+obj-$(CONFIG_DVB_USB_CE6230) += dvb-usb-ce6230.o
 
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/
 # due to tuner-xc3028
diff --git a/drivers/media/dvb/dvb-usb/ce6230.c b/drivers/media/dvb/dvb-usb/ce6230.c
new file mode 100644
index 000000000000..8a3059040352
--- /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");
diff --git a/drivers/media/dvb/dvb-usb/ce6230.h b/drivers/media/dvb/dvb-usb/ce6230.h
new file mode 100644
index 000000000000..97c42482ccb3
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/ce6230.h
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ *
+ */
+
+#ifndef _DVB_USB_CE6230_H_
+#define _DVB_USB_CE6230_H_
+
+#define DVB_USB_LOG_PREFIX "ce6230"
+#include "dvb-usb.h"
+
+#define deb_info(args...) dprintk(dvb_usb_ce6230_debug, 0x01, args)
+#define deb_rc(args...)   dprintk(dvb_usb_ce6230_debug, 0x02, args)
+#define deb_xfer(args...) dprintk(dvb_usb_ce6230_debug, 0x04, args)
+#define deb_reg(args...)  dprintk(dvb_usb_ce6230_debug, 0x08, args)
+#define deb_i2c(args...)  dprintk(dvb_usb_ce6230_debug, 0x10, args)
+#define deb_fw(args...)   dprintk(dvb_usb_ce6230_debug, 0x20, args)
+
+#define ce6230_debug_dump(r, t, v, i, b, l, func) { \
+        int loop_; \
+        func("%02x %02x %02x %02x %02x %02x %02x %02x", \
+                t, r, v & 0xff, v >> 8, i & 0xff, i >> 8, l & 0xff, l >> 8); \
+        if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \
+                func(" >>> "); \
+        else \
+                func(" <<< "); \
+        for (loop_ = 0; loop_ < l; loop_++) \
+                func("%02x ", b[loop_]); \
+        func("\n");\
+}
+
+#define CE6230_USB_TIMEOUT 1000
+
+struct req_t {
+        u8  cmd;       /* [1] */
+        u16 value;     /* [2|3] */
+        u16 index;     /* [4|5] */
+        u16 data_len;  /* [6|7] */
+        u8  *data;
+};
+
+enum ce6230_cmd {
+        CONFIG_READ          = 0xd0, /* rd 0 (unclear) */
+        UNKNOWN_WRITE        = 0xc7, /* wr 7 (unclear) */
+        I2C_READ             = 0xd9, /* rd 9 (unclear) */
+        I2C_WRITE            = 0xca, /* wr a */
+        DEMOD_READ           = 0xdb, /* rd b */
+        DEMOD_WRITE          = 0xcc, /* wr c */
+        REG_READ             = 0xde, /* rd e */
+        REG_WRITE            = 0xcf, /* wr f */
+};
+
+#endif
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
index 3dfb271741f6..0f239c668c51 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
@@ -33,6 +33,7 @@
 #define USB_VID_HANFTEK                         0x15f4
 #define USB_VID_HAUPPAUGE                       0x2040
 #define USB_VID_HYPER_PALTEK                    0x1025
+#define USB_VID_INTEL                           0x8086
 #define USB_VID_KWORLD                          0xeb2a
 #define USB_VID_KWORLD_2                        0x1b80
 #define USB_VID_KYE                             0x0458
@@ -96,6 +97,7 @@
 #define USB_PID_UNIWILL_STK7700P                        0x6003
 #define USB_PID_GRANDTEC_DVBT_USB_COLD                  0x0fa0
 #define USB_PID_GRANDTEC_DVBT_USB_WARM                  0x0fa1
+#define USB_PID_INTEL_CE9500                            0x9500
 #define USB_PID_KWORLD_399U                             0xe399
 #define USB_PID_KWORLD_395U                             0xe396
 #define USB_PID_KWORLD_395U_2                           0xe39b