[PATCH] dvb: Add generalized dvb-usb driver

Add generalized dvb-usb driver which supports a wide variety of devices.

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

1 files changed, 263 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/vp7045.c b/drivers/media/dvb/dvb-usb/vp7045.c
new file mode 100644
index 000000000000..02ecc9a8e3b6
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/vp7045.c
@@ -0,0 +1,263 @@
+/* DVB USB compliant Linux driver for the
+ *  - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
+ *  - DigitalNow TinyUSB2 DVB-t receiver
+ *
+ * Copyright (C) 2004-5 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 "vp7045.h"
+
+/* debug */
+int dvb_usb_vp7045_debug;
+module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
+
+int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
+{
+        int ret = 0;
+        u8 inbuf[12] = { 0 }, outbuf[20] = { 0 };
+
+        outbuf[0] = cmd;
+
+        if (outlen > 19)
+                outlen = 19;
+
+        if (inlen > 11)
+                inlen = 11;
+
+        if (out != NULL && outlen > 0)
+                memcpy(&outbuf[1], out, outlen);
+
+        deb_xfer("out buffer: ");
+        debug_dump(outbuf,outlen+1,deb_xfer);
+
+        if ((ret = down_interruptible(&d->usb_sem)))
+                return ret;
+
+        if (usb_control_msg(d->udev,
+                        usb_sndctrlpipe(d->udev,0),
+                        TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
+                        outbuf, 20, 2*HZ) != 20) {
+                err("USB control message 'out' went wrong.");
+                ret = -EIO;
+                goto unlock;
+        }
+
+        msleep(msec);
+
+        if (usb_control_msg(d->udev,
+                        usb_rcvctrlpipe(d->udev,0),
+                        TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+                        inbuf, 12, 2*HZ) != 12) {
+                err("USB control message 'in' went wrong.");
+                ret = -EIO;
+                goto unlock;
+        }
+
+        deb_xfer("in buffer: ");
+        debug_dump(inbuf,12,deb_xfer);
+
+        if (in != NULL && inlen > 0)
+                memcpy(in,&inbuf[1],inlen);
+
+unlock:
+        up(&d->usb_sem);
+
+        return ret;
+}
+
+u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
+{
+        u8 obuf[2] = { 0 },v;
+        obuf[1] = reg;
+
+        vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);
+
+        return v;
+}
+
+static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+        u8 v = onoff;
+        return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
+}
+
+/* remote control stuff */
+
+/* The keymapping struct. Somehow this should be loaded to the driver, but
+ * currently it is hardcoded. */
+static struct dvb_usb_rc_key vp7045_rc_keys[] = {
+        /* insert the keys like this. to make the raw keys visible, enable
+         * debug=0x04 when loading dvb-usb-vp7045. */
+
+        /* these keys are probably wrong. I don't have a working IR-receiver on my
+         * vp7045, so I can't test it.  Patches are welcome. */
+        { 0x00, 0x01, KEY_1 },
+        { 0x00, 0x02, KEY_2 },
+};
+
+static int vp7045_rc_query(struct dvb_usb_device *d, u32 *key_buf, int *state)
+{
+        u8 key;
+        int i;
+        vp7045_usb_op(d,RC_VAL_READ,NULL,0,&key,1,20);
+
+        deb_rc("remote query key: %x %d\n",key,key);
+
+        if (key == 0x44) {
+                *state = REMOTE_NO_KEY_PRESSED;
+                return 0;
+        }
+
+        for (i = 0; i < sizeof(vp7045_rc_keys)/sizeof(struct dvb_usb_rc_key); i++)
+                if (vp7045_rc_keys[i].data == key) {
+                        *state = REMOTE_KEY_PRESSED;
+                        *key_buf = vp7045_rc_keys[i].event;
+                        break;
+                }
+        return 0;
+}
+
+static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
+{
+        int i = 0;
+        u8 v,br[2];
+        for (i=0; i < len; i++) {
+                v = offset + i;
+                vp7045_usb_op(d,GET_EE_VALUE,&v,1,br,2,5);
+                buf[i] = br[1];
+        }
+        deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ",offset, i);
+        debug_dump(buf,i,deb_info);
+        return 0;
+}
+
+
+static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
+{
+        return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
+}
+
+static int vp7045_frontend_attach(struct dvb_usb_device *d)
+{
+        u8 buf[255] = { 0 };
+
+        vp7045_usb_op(d,VENDOR_STRING_READ,NULL,0,buf,20,0);
+        buf[10] = '\0';
+        deb_info("firmware says: %s ",buf);
+
+        vp7045_usb_op(d,PRODUCT_STRING_READ,NULL,0,buf,20,0);
+        buf[10] = '\0';
+        deb_info("%s ",buf);
+
+        vp7045_usb_op(d,FW_VERSION_READ,NULL,0,buf,20,0);
+        buf[10] = '\0';
+        deb_info("v%s\n",buf);
+
+/*      Dump the EEPROM */
+/*      vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */
+
+        d->fe = vp7045_fe_attach(d);
+
+        return 0;
+}
+
+static struct dvb_usb_properties vp7045_properties;
+
+static int vp7045_usb_probe(struct usb_interface *intf,
+                const struct usb_device_id *id)
+{
+        return dvb_usb_device_init(intf,&vp7045_properties,THIS_MODULE);
+}
+
+static struct usb_device_id vp7045_usb_table [] = {
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_COLD) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_WARM) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_COLD) },
+            { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_WARM) },
+            { 0 },
+};
+MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
+
+static struct dvb_usb_properties vp7045_properties = {
+        .caps = 0,
+
+        .usb_ctrl = CYPRESS_FX2,
+        .firmware = "dvb-usb-vp7045-01.fw",
+
+        .power_ctrl       = vp7045_power_ctrl,
+        .frontend_attach  = vp7045_frontend_attach,
+        .read_mac_address = vp7045_read_mac_addr,
+
+        .rc_interval      = 400,
+        .rc_key_map       = vp7045_rc_keys,
+        .rc_key_map_size  = ARRAY_SIZE(vp7045_rc_keys),
+        .rc_query         = vp7045_rc_query,
+
+        /* 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 = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
+                  .cold_ids = { &vp7045_usb_table[0], NULL },
+                  .warm_ids = { &vp7045_usb_table[1], NULL },
+                },
+                { .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
+                  .cold_ids = { &vp7045_usb_table[2], NULL },
+                  .warm_ids = { &vp7045_usb_table[3], NULL },
+                },
+                { 0 },
+        }
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver vp7045_usb_driver = {
+        .owner          = THIS_MODULE,
+        .name           = "dvb-usb-vp7045",
+        .probe          = vp7045_usb_probe,
+        .disconnect = dvb_usb_device_exit,
+        .id_table       = vp7045_usb_table,
+};
+
+/* module stuff */
+static int __init vp7045_usb_module_init(void)
+{
+        int result;
+        if ((result = usb_register(&vp7045_usb_driver))) {
+                err("usb_register failed. (%d)",result);
+                return result;
+        }
+
+        return 0;
+}
+
+static void __exit vp7045_usb_module_exit(void)
+{
+        /* deregister this driver from the USB subsystem */
+        usb_deregister(&vp7045_usb_driver);
+}
+
+module_init(vp7045_usb_module_init);
+module_exit(vp7045_usb_module_exit);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
+MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");