[PATCH] dvb: usb: add TwinhanDTV StarBox support

Add driver for the TwinhanDTV StarBox and clones.

Thanks to Ralph Metzler for his initial work on this box and thanks to Twinhan
for their support.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 290 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/vp702x.c b/drivers/media/dvb/dvb-usb/vp702x.c
new file mode 100644
index 000000000000..1f5034ca1152
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/vp702x.c
@@ -0,0 +1,290 @@
+/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
+ * receiver.
+ *
+ * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
+ *                    Metzler Brothers Systementwicklung GbR
+ *
+ * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de>
+ *
+ * Thanks to Twinhan who kindly provided hardware and information.
+ *
+ *      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
+ */
+#include "vp702x.h"
+
+/* debug */
+int dvb_usb_vp702x_debug;
+module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
+
+struct vp702x_state {
+        u8 pid_table[17]; /* [16] controls the pid_table state */
+};
+
+/* check for mutex FIXME */
+int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
+{
+        int ret = 0,try = 0;
+
+        while (ret >= 0 && ret != blen && try < 3) {
+                ret = usb_control_msg(d->udev,
+                        usb_rcvctrlpipe(d->udev,0),
+                        req,
+                        USB_TYPE_VENDOR | USB_DIR_IN,
+                        value,index,b,blen,
+                        2000);
+                deb_info("reading number %d (ret: %d)\n",try,ret);
+                try++;
+        }
+
+        if (ret < 0 || ret != blen) {
+                warn("usb in operation failed.");
+                ret = -EIO;
+        } else
+                ret = 0;
+
+        deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
+        debug_dump(b,blen,deb_xfer);
+
+        return ret;
+}
+
+int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
+{
+        deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
+        debug_dump(b,blen,deb_xfer);
+
+        if (usb_control_msg(d->udev,
+                        usb_sndctrlpipe(d->udev,0),
+                        req,
+                        USB_TYPE_VENDOR | USB_DIR_OUT,
+                        value,index,b,blen,
+                        2000) != blen) {
+                warn("usb out operation failed.");
+                return -EIO;
+        } else
+                return 0;
+}
+
+int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
+{
+        int ret;
+
+        if ((ret = down_interruptible(&d->usb_sem)))
+                return ret;
+
+        if ((ret = vp702x_usb_out_op(d,REQUEST_OUT,0,0,o,olen)) < 0)
+                goto unlock;
+        msleep(msec);
+        ret = vp702x_usb_in_op(d,REQUEST_IN,0,0,i,ilen);
+
+unlock:
+        up(&d->usb_sem);
+
+        return ret;
+}
+
+int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o, int olen, u8 *i, int ilen, int msec)
+{
+        u8 bout[olen+2];
+        u8 bin[ilen+1];
+        int ret = 0;
+
+        bout[0] = 0x00;
+        bout[1] = cmd;
+        memcpy(&bout[2],o,olen);
+
+        ret = vp702x_usb_inout_op(d, bout, olen+2, bin, ilen+1,msec);
+
+        if (ret == 0)
+                memcpy(i,&bin[1],ilen);
+
+        return ret;
+}
+
+static int vp702x_pid_filter(struct dvb_usb_device *d, int index, u16 pid, int onoff)
+{
+        struct vp702x_state *st = d->priv;
+        u8 buf[9];
+
+        if (onoff) {
+                st->pid_table[16]   |=   1 << index;
+                st->pid_table[index*2]   = (pid >> 8) & 0xff;
+                st->pid_table[index*2+1] =  pid       & 0xff;
+        } else {
+                st->pid_table[16]   &= ~(1 << index);
+                st->pid_table[index*2] = st->pid_table[index*2+1] = 0;
+        }
+
+        return vp702x_usb_inout_cmd(d,SET_PID_FILTER,st->pid_table,17,buf,9,10);
+}
+
+static int vp702x_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+        vp702x_usb_in_op(d,RESET_TUNER,0,0,NULL,0);
+
+        vp702x_usb_in_op(d,SET_TUNER_POWER_REQ,0,onoff,NULL,0);
+        return vp702x_usb_in_op(d,SET_TUNER_POWER_REQ,0,onoff,NULL,0);
+}
+
+/* keys for the enclosed remote control */
+static struct dvb_usb_rc_key vp702x_rc_keys[] = {
+        { 0x00, 0x01, KEY_1 },
+        { 0x00, 0x02, KEY_2 },
+};
+
+/* remote control stuff (does not work with my box) */
+static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+        u8 key[10];
+        int i;
+
+/* remove the following return to enabled remote querying */
+        return 0;
+
+        vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);
+
+        deb_rc("remote query key: %x %d\n",key[1],key[1]);
+
+        if (key[1] == 0x44) {
+                *state = REMOTE_NO_KEY_PRESSED;
+                return 0;
+        }
+
+        for (i = 0; i < ARRAY_SIZE(vp702x_rc_keys); i++)
+                if (vp702x_rc_keys[i].custom == key[1]) {
+                        *state = REMOTE_KEY_PRESSED;
+                        *event = vp702x_rc_keys[i].event;
+                        break;
+                }
+        return 0;
+}
+
+static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
+{
+        u8 macb[9];
+        if (vp702x_usb_inout_cmd(d, GET_MAC_ADDRESS, NULL, 0, macb, 9, 10))
+                return -EIO;
+        memcpy(mac,&macb[3],6);
+        return 0;
+}
+
+static int vp702x_frontend_attach(struct dvb_usb_device *d)
+{
+        u8 buf[9] = { 0 };
+
+        if (vp702x_usb_inout_cmd(d, GET_SYSTEM_STRING, NULL, 0, buf, 9, 10))
+                return -EIO;
+
+        buf[8] = '\0';
+        info("system string: %s",&buf[1]);
+
+        d->fe = vp702x_fe_attach(d);
+        return 0;
+}
+
+static struct dvb_usb_properties vp702x_properties;
+
+static int vp702x_usb_probe(struct usb_interface *intf,
+                const struct usb_device_id *id)
+{
+        struct usb_device *udev = interface_to_usbdev(intf);
+
+        usb_clear_halt(udev,usb_sndctrlpipe(udev,0));
+        usb_clear_halt(udev,usb_rcvctrlpipe(udev,0));
+
+        return dvb_usb_device_init(intf,&vp702x_properties,THIS_MODULE);
+}
+
+static struct usb_device_id vp702x_usb_table [] = {
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_WARM) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
+            { 0 },
+};
+MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
+
+static struct dvb_usb_properties vp702x_properties = {
+        .caps = DVB_USB_HAS_PID_FILTER | DVB_USB_NEED_PID_FILTERING,
+        .pid_filter_count = 8, /* !!! */
+
+        .usb_ctrl = CYPRESS_FX2,
+        .firmware = "dvb-usb-vp702x-01.fw",
+
+        .pid_filter       = vp702x_pid_filter,
+        .power_ctrl       = vp702x_power_ctrl,
+        .frontend_attach  = vp702x_frontend_attach,
+        .read_mac_address = vp702x_read_mac_addr,
+
+        .rc_key_map       = vp702x_rc_keys,
+        .rc_key_map_size  = ARRAY_SIZE(vp702x_rc_keys),
+        .rc_interval      = 400,
+        .rc_query         = vp702x_rc_query,
+
+        .size_of_priv     = sizeof(struct vp702x_state),
+
+        /* parameter for the MPEG2-data transfer */
+        .urb = {
+                .type = DVB_USB_BULK,
+                .count = 7,
+                .endpoint = 0x02,
+                .u = {
+                        .bulk = {
+                                .buffersize = 4096,
+                        }
+                }
+        },
+
+        .num_device_descs = 2,
+        .devices = {
+                { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
+                  .cold_ids = { &vp702x_usb_table[0], NULL },
+                  .warm_ids = { &vp702x_usb_table[1], NULL },
+                },
+                { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
+                  .cold_ids = { &vp702x_usb_table[2], NULL },
+                  .warm_ids = { &vp702x_usb_table[3], NULL },
+                },
+                { 0 },
+        }
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver vp702x_usb_driver = {
+        .owner          = THIS_MODULE,
+        .name           = "dvb-usb-vp702x",
+        .probe          = vp702x_usb_probe,
+        .disconnect = dvb_usb_device_exit,
+        .id_table       = vp702x_usb_table,
+};
+
+/* module stuff */
+static int __init vp702x_usb_module_init(void)
+{
+        int result;
+        if ((result = usb_register(&vp702x_usb_driver))) {
+                err("usb_register failed. (%d)",result);
+                return result;
+        }
+
+        return 0;
+}
+
+static void __exit vp702x_usb_module_exit(void)
+{
+        /* deregister this driver from the USB subsystem */
+        usb_deregister(&vp702x_usb_driver);
+}
+
+module_init(vp702x_usb_module_init);
+module_exit(vp702x_usb_module_exit);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
+MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
+MODULE_VERSION("1.0-alpha");
+MODULE_LICENSE("GPL");