V4L/DVB (4863): Adding support for Pinnacle PCTV 400e DVB-S

Adding support for Pinnacle PCTV 400e DVB-S. The module name is called ttusb2,
because it this device (and other Pinnacle devices) is using the USB-protocol
originally used by Technotrend device. I'm suspecting Technotrend as the
device-designer.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 270 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/ttusb2.c b/drivers/media/dvb/dvb-usb/ttusb2.c
new file mode 100644
index 000000000000..95d29976ed78
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/ttusb2.c
@@ -0,0 +1,270 @@
+/* DVB USB compliant linux driver for Technotrend DVB USB boxes and clones
+ * (e.g. Pinnacle 400e DVB-S USB2.0).
+ *
+ * The Pinnacle 400e uses the same protocol as the Technotrend USB1.1 boxes.
+ *
+ * TDA8263 + TDA10086
+ *
+ * I2C addresses:
+ * 0x08 - LNBP21PD   - LNB power supply
+ * 0x0e - TDA10086   - Demodulator
+ * 0x50 - FX2 eeprom
+ * 0x60 - TDA8263    - Tuner
+ * 0x78 ???
+ *
+ * Copyright (c) 2002 Holger Waechtler <holger@convergence.de>
+ * Copyright (c) 2003 Felix Domke <tmbinc@elitedvb.net>
+ * Copyright (C) 2005-6 Patrick Boettcher <pb@linuxtv.org>
+ *
+ *      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, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+#define DVB_USB_LOG_PREFIX "ttusb2"
+#include "dvb-usb.h"
+
+#include "ttusb2.h"
+
+#include "tda826x.h"
+#include "tda10086.h"
+#include "lnbp21.h"
+
+/* debug */
+static int dvb_usb_ttusb2_debug;
+#define deb_info(args...)   dprintk(dvb_usb_ttusb2_debug,0x01,args)
+module_param_named(debug,dvb_usb_ttusb2_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))." DVB_USB_DEBUG_STATUS);
+
+struct ttusb2_state {
+        u8 id;
+};
+
+static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
+                u8 *wbuf, int wlen, u8 *rbuf, int rlen)
+{
+        struct ttusb2_state *st = d->priv;
+        u8 s[wlen+4],r[64] = { 0 };
+        int ret = 0;
+
+        memset(s,0,wlen+4);
+
+        s[0] = 0xaa;
+        s[1] = ++st->id;
+        s[2] = cmd;
+        s[3] = wlen;
+        memcpy(&s[4],wbuf,wlen);
+
+        ret = dvb_usb_generic_rw(d, s, wlen+4, r, 64, 0);
+
+        if (ret  != 0 ||
+                r[0] != 0x55 ||
+                r[1] != s[1] ||
+                r[2] != cmd ||
+                (rlen > 0 && r[3] != rlen)) {
+                warn("there might have been an error during control message transfer. (rlen = %d, was %d)",rlen,r[3]);
+                return -EIO;
+        }
+
+        if (rlen > 0)
+                memcpy(rbuf, &r[4], rlen);
+
+        return 0;
+}
+
+static int ttusb2_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
+{
+        struct dvb_usb_device *d = i2c_get_adapdata(adap);
+        static u8 obuf[60], ibuf[60];
+        int i,read;
+
+        if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+                return -EAGAIN;
+
+        if (num > 2)
+                warn("more than 2 i2c messages at a time is not handled yet. TODO.");
+
+        for (i = 0; i < num; i++) {
+                read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
+
+                obuf[0] = (msg[i].addr << 1) | read;
+                obuf[1] = msg[i].len;
+
+                /* read request */
+                if (read)
+                        obuf[2] = msg[i+1].len;
+                else
+                        obuf[2] = 0;
+
+                memcpy(&obuf[3],msg[i].buf,msg[i].len);
+
+                if (ttusb2_msg(d, CMD_I2C_XFER, obuf, msg[i].len+3, ibuf, obuf[2] + 3) < 0) {
+                        err("i2c transfer failed.");
+                        break;
+                }
+
+                if (read) {
+                        memcpy(msg[i+1].buf,&ibuf[3],msg[i+1].len);
+                        i++;
+                }
+        }
+
+        mutex_unlock(&d->i2c_mutex);
+        return i;
+}
+
+static u32 ttusb2_i2c_func(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm ttusb2_i2c_algo = {
+        .master_xfer   = ttusb2_i2c_xfer,
+        .functionality = ttusb2_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static int ttusb2_identify_state (struct usb_device *udev, struct
+                dvb_usb_device_properties *props, struct dvb_usb_device_description **desc,
+                int *cold)
+{
+        *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
+        return 0;
+}
+
+static int ttusb2_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+        u8 b = onoff;
+        ttusb2_msg(d, CMD_POWER, &b, 0, NULL, 0);
+        return ttusb2_msg(d, CMD_POWER, &b, 1, NULL, 0);
+}
+
+
+static struct tda10086_config tda10086_config = {
+        .demod_address = 0x0e,
+        .invert = 0,
+};
+
+static int ttusb2_frontend_attach(struct dvb_usb_adapter *adap)
+{
+        if (usb_set_interface(adap->dev->udev,0,3) < 0)
+                err("set interface to alts=3 failed");
+
+        if ((adap->fe = dvb_attach(tda10086_attach, &tda10086_config, &adap->dev->i2c_adap)) == NULL) {
+                deb_info("TDA10086 attach failed\n");
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static int ttusb2_tuner_attach(struct dvb_usb_adapter *adap)
+{
+        if (dvb_attach(tda826x_attach, adap->fe, 0x60, &adap->dev->i2c_adap, 0) == NULL) {
+                deb_info("TDA8263 attach failed\n");
+                return -ENODEV;
+        }
+
+        if (dvb_attach(lnbp21_attach, adap->fe, &adap->dev->i2c_adap, 0, 0) == NULL) {
+                deb_info("LNBP21 attach failed\n");
+                return -ENODEV;
+        }
+        return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties ttusb2_properties;
+
+static int ttusb2_probe(struct usb_interface *intf,
+                const struct usb_device_id *id)
+{
+        return dvb_usb_device_init(intf,&ttusb2_properties,THIS_MODULE,NULL);
+}
+
+static struct usb_device_id ttusb2_table [] = {
+                { USB_DEVICE(USB_VID_PINNACLE, USB_PID_PCTV_400E) },
+                {}              /* Terminating entry */
+};
+MODULE_DEVICE_TABLE (usb, ttusb2_table);
+
+static struct dvb_usb_device_properties ttusb2_properties = {
+        .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+        .usb_ctrl = CYPRESS_FX2,
+        .firmware = "dvb-usb-pctv-400e-01.fw",
+
+        .size_of_priv = sizeof(struct ttusb2_state),
+
+        .num_adapters = 1,
+        .adapter = {
+                {
+                        .streaming_ctrl   = NULL, // ttusb2_streaming_ctrl,
+
+                        .frontend_attach  = ttusb2_frontend_attach,
+                        .tuner_attach     = ttusb2_tuner_attach,
+
+                        /* parameter for the MPEG2-data transfer */
+                        .stream = {
+                                .type = USB_ISOC,
+                                .count = 5,
+                                .endpoint = 0x02,
+                                .u = {
+                                        .isoc = {
+                                                .framesperurb = 4,
+                                                .framesize = 940,
+                                                .interval = 1,
+                                        }
+                                }
+                        }
+                }
+        },
+
+        .power_ctrl       = ttusb2_power_ctrl,
+        .identify_state   = ttusb2_identify_state,
+
+        .i2c_algo         = &ttusb2_i2c_algo,
+
+        .generic_bulk_ctrl_endpoint = 0x01,
+
+        .num_device_descs = 1,
+        .devices = {
+                {   "Pinnacle 400e DVB-S USB2.0",
+                        { &ttusb2_table[0], NULL },
+                        { NULL },
+                },
+        }
+};
+
+static struct usb_driver ttusb2_driver = {
+        .name           = "dvb_usb_ttusb2",
+        .probe          = ttusb2_probe,
+        .disconnect = dvb_usb_device_exit,
+        .id_table       = ttusb2_table,
+};
+
+/* module stuff */
+static int __init ttusb2_module_init(void)
+{
+        int result;
+        if ((result = usb_register(&ttusb2_driver))) {
+                err("usb_register failed. Error number %d",result);
+                return result;
+        }
+
+        return 0;
+}
+
+static void __exit ttusb2_module_exit(void)
+{
+        /* deregister this driver from the USB subsystem */
+        usb_deregister(&ttusb2_driver);
+}
+
+module_init (ttusb2_module_init);
+module_exit (ttusb2_module_exit);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
+MODULE_DESCRIPTION("Driver for Pinnacle PCTV 400e DVB-S USB2.0");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");