V4L/DVB (6649): Add support for the DViCO FusionHDTV Dual Digital 4

Add support for DViCO's Dual Digital 4 with xc3028 tuner, zl10353 DVB-T
demodulator and a new-style I2C IR remote control receiver.

This would not have been possible without the work of and advice from
Mike Krufky, who originally got the Dual Digital 4 and second-gen DVB-T
NANO devices working with the out-of-tree XC3028 driver.

I converted it to use the in-tree XC3028 driver (after making it suitable
for our use), and added the IR remote control support based on his advice.

NB: a firmware package is required to use this device.

Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

3 files changed, 201 insertions, 2 deletions

diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c
index 74eeb168f241..ec8516ac8105 100644
--- a/drivers/media/dvb/dvb-usb/cxusb.c
+++ b/drivers/media/dvb/dvb-usb/cxusb.c
@@ -15,7 +15,7 @@
  *
  * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de)
  * Copyright (C) 2006 Michael Krufky (mkrufky@linuxtv.org)
- * Copyright (C) 2006 Chris Pascoe (c.pascoe@itee.uq.edu.au)
+ * Copyright (C) 2006, 2007 Chris Pascoe (c.pascoe@itee.uq.edu.au)
  *
  *   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
@@ -30,6 +30,8 @@
 #include "mt352.h"
 #include "mt352_priv.h"
 #include "zl10353.h"
+#include "tuner-xc2028.h"
+#include "tuner-xc2028-types.h"
 
 /* debug */
 static int dvb_usb_cxusb_debug;
@@ -73,6 +75,29 @@ static void cxusb_gpio_tuner(struct dvb_usb_device *d, int onoff)
         st->gpio_write_state[GPIO_TUNER] = onoff;
 }
 
+static int cxusb_bluebird_gpio_rw(struct dvb_usb_device *d, u8 changemask,
+                                 u8 newval)
+{
+        u8 o[2], gpio_state;
+        int rc;
+
+        o[0] = 0xff & ~changemask;      /* mask of bits to keep */
+        o[1] = newval & changemask;     /* new values for bits  */
+
+        rc = cxusb_ctrl_msg(d, CMD_BLUEBIRD_GPIO_RW, o, 2, &gpio_state, 1);
+        if (rc < 0 || (gpio_state & changemask) != (newval & changemask))
+                deb_info("bluebird_gpio_write failed.\n");
+
+        return rc < 0 ? rc : gpio_state;
+}
+
+static void cxusb_bluebird_gpio_pulse(struct dvb_usb_device *d, u8 pin, int low)
+{
+        cxusb_bluebird_gpio_rw(d, pin, low ? 0 : pin);
+        msleep(5);
+        cxusb_bluebird_gpio_rw(d, pin, low ? pin : 0);
+}
+
 /* I2C */
 static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
                           int num)
@@ -210,6 +235,34 @@ static int cxusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
         return 0;
 }
 
+static int cxusb_bluebird2_rc_query(struct dvb_usb_device *d, u32 *event,
+                                    int *state)
+{
+        struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
+        u8 ircode[4];
+        int i;
+        struct i2c_msg msg = { .addr = 0x6b, .flags = I2C_M_RD,
+                               .buf = ircode, .len = 4 };
+
+        *event = 0;
+        *state = REMOTE_NO_KEY_PRESSED;
+
+        if (cxusb_i2c_xfer(&d->i2c_adap, &msg, 1) != 1)
+                return 0;
+
+        for (i = 0; i < d->props.rc_key_map_size; i++) {
+                if (keymap[i].custom == ircode[1] &&
+                    keymap[i].data == ircode[2]) {
+                        *event = keymap[i].event;
+                        *state = REMOTE_KEY_PRESSED;
+
+                        return 0;
+                }
+        }
+
+        return 0;
+}
+
 static struct dvb_usb_rc_key dvico_mce_rc_keys[] = {
         { 0xfe, 0x02, KEY_TV },
         { 0xfe, 0x0e, KEY_MP3 },
@@ -364,6 +417,13 @@ static struct mt352_config cxusb_mt352_config = {
         .demod_init    = cxusb_mt352_demod_init,
 };
 
+static struct zl10353_config cxusb_zl10353_xc3028_config = {
+        .demod_address = 0x0f,
+        .if2 = 4560,
+        .no_tuner = 1,
+        .parallel_ts = 1,
+};
+
 /* Callbacks for DVB USB */
 static int cxusb_fmd1216me_tuner_attach(struct dvb_usb_adapter *adap)
 {
@@ -399,6 +459,52 @@ static int cxusb_lgh064f_tuner_attach(struct dvb_usb_adapter *adap)
         return 0;
 }
 
+static int dvico_bluebird_xc2028_callback(void *ptr, int command, int arg)
+{
+        struct dvb_usb_device *d = ptr;
+
+        switch (command) {
+        case XC2028_TUNER_RESET:
+                deb_info("%s: XC2028_TUNER_RESET %d\n", __FUNCTION__, arg);
+                cxusb_bluebird_gpio_pulse(d, 0x01, 1);
+                break;
+        case XC2028_RESET_CLK:
+                deb_info("%s: XC2028_RESET_CLK %d\n", __FUNCTION__, arg);
+                break;
+        default:
+                deb_info("%s: unknown command %d, arg %d\n", __FUNCTION__,
+                         command, arg);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int cxusb_dvico_xc3028_tuner_attach(struct dvb_usb_adapter *adap)
+{
+        struct dvb_frontend      *fe;
+        struct xc2028_config      cfg = {
+                .i2c_adap  = &adap->dev->i2c_adap,
+                .i2c_addr  = 0x61,
+                .video_dev = adap->dev,
+                .callback  = dvico_bluebird_xc2028_callback,
+        };
+        static struct xc2028_ctrl ctl = {
+                .type        = XC2028_FIRM_NORMAL,
+                .fname       = "xc3028-dvico-au-01.fw",
+                .max_len     = 64,
+                .scode_table = ZARLINK456,
+        };
+
+        fe = dvb_attach(xc2028_attach, adap->fe, &cfg);
+        if (fe == NULL || fe->ops.tuner_ops.set_config == NULL)
+                return -EIO;
+
+        fe->ops.tuner_ops.set_config(fe, &ctl);
+
+        return 0;
+}
+
 static int cxusb_cx22702_frontend_attach(struct dvb_usb_adapter *adap)
 {
         u8 b;
@@ -460,6 +566,46 @@ static int cxusb_dee1601_frontend_attach(struct dvb_usb_adapter *adap)
         return -EIO;
 }
 
+static int cxusb_dualdig4_frontend_attach(struct dvb_usb_adapter *adap)
+{
+        u8 ircode[4];
+        int i;
+        struct i2c_msg msg = { .addr = 0x6b, .flags = I2C_M_RD,
+                               .buf = ircode, .len = 4 };
+
+        if (usb_set_interface(adap->dev->udev, 0, 1) < 0)
+                err("set interface failed");
+
+        cxusb_ctrl_msg(adap->dev, CMD_DIGITAL, NULL, 0, NULL, 0);
+
+        /* reset the tuner and demodulator */
+        cxusb_bluebird_gpio_rw(adap->dev, 0x04, 0);
+        cxusb_bluebird_gpio_pulse(adap->dev, 0x01, 1);
+        cxusb_bluebird_gpio_pulse(adap->dev, 0x02, 1);
+
+        if ((adap->fe = dvb_attach(zl10353_attach,
+                                   &cxusb_zl10353_xc3028_config,
+                                   &adap->dev->i2c_adap)) == NULL)
+                return -EIO;
+
+        /* try to determine if there is no IR decoder on the I2C bus */
+        for (i = 0; adap->dev->props.rc_key_map != NULL && i < 5; i++) {
+                msleep(20);
+                if (cxusb_i2c_xfer(&adap->dev->i2c_adap, &msg, 1) != 1)
+                        goto no_IR;
+                if (ircode[0] == 0 && ircode[1] == 0)
+                        continue;
+                if (ircode[2] + ircode[3] != 0xff) {
+no_IR:
+                        adap->dev->props.rc_key_map = NULL;
+                        info("No IR receiver detected on this device.");
+                        break;
+                }
+        }
+
+        return 0;
+}
+
 /*
  * DViCO bluebird firmware needs the "warm" product ID to be patched into the
  * firmware file before download.
@@ -492,6 +638,7 @@ static struct dvb_usb_device_properties cxusb_bluebird_lgh064f_properties;
 static struct dvb_usb_device_properties cxusb_bluebird_dee1601_properties;
 static struct dvb_usb_device_properties cxusb_bluebird_lgz201_properties;
 static struct dvb_usb_device_properties cxusb_bluebird_dtt7579_properties;
+static struct dvb_usb_device_properties cxusb_bluebird_dualdig4_properties;
 
 static int cxusb_probe(struct usb_interface *intf,
                        const struct usb_device_id *id)
@@ -500,7 +647,8 @@ static int cxusb_probe(struct usb_interface *intf,
                 dvb_usb_device_init(intf,&cxusb_bluebird_lgh064f_properties,THIS_MODULE,NULL) == 0 ||
                 dvb_usb_device_init(intf,&cxusb_bluebird_dee1601_properties,THIS_MODULE,NULL) == 0 ||
                 dvb_usb_device_init(intf,&cxusb_bluebird_lgz201_properties,THIS_MODULE,NULL) == 0 ||
-                dvb_usb_device_init(intf,&cxusb_bluebird_dtt7579_properties,THIS_MODULE,NULL) == 0) {
+                dvb_usb_device_init(intf,&cxusb_bluebird_dtt7579_properties,THIS_MODULE,NULL) == 0 ||
+                dvb_usb_device_init(intf,&cxusb_bluebird_dualdig4_properties,THIS_MODULE,NULL) == 0) {
                 return 0;
         }
 
@@ -521,6 +669,7 @@ static struct usb_device_id cxusb_table [] = {
         { USB_DEVICE(USB_VID_DVICO, USB_PID_DIGITALNOW_BLUEBIRD_DUAL_1_WARM) },
         { USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DUAL_2_COLD) },
         { USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DUAL_2_WARM) },
+        { USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DUAL_4) },
         {}              /* Terminating entry */
 };
 MODULE_DEVICE_TABLE (usb, cxusb_table);
@@ -779,6 +928,53 @@ static struct dvb_usb_device_properties cxusb_bluebird_dtt7579_properties = {
         }
 };
 
+static struct dvb_usb_device_properties cxusb_bluebird_dualdig4_properties = {
+        .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+        .usb_ctrl         = CYPRESS_FX2,
+
+        .size_of_priv     = sizeof(struct cxusb_state),
+
+        .num_adapters = 1,
+        .adapter = {
+                {
+                        .streaming_ctrl   = cxusb_streaming_ctrl,
+                        .frontend_attach  = cxusb_dualdig4_frontend_attach,
+                        .tuner_attach     = cxusb_dvico_xc3028_tuner_attach,
+                        /* parameter for the MPEG2-data transfer */
+                        .stream = {
+                                .type = USB_BULK,
+                                .count = 5,
+                                .endpoint = 0x02,
+                                .u = {
+                                        .bulk = {
+                                                .buffersize = 8192,
+                                        }
+                                }
+                        },
+                },
+        },
+
+        .power_ctrl       = cxusb_power_ctrl,
+
+        .i2c_algo         = &cxusb_i2c_algo,
+
+        .generic_bulk_ctrl_endpoint = 0x01,
+
+        .rc_interval      = 100,
+        .rc_key_map       = dvico_mce_rc_keys,
+        .rc_key_map_size  = ARRAY_SIZE(dvico_mce_rc_keys),
+        .rc_query         = cxusb_bluebird2_rc_query,
+
+        .num_device_descs = 1,
+        .devices = {
+                {   "DViCO FusionHDTV DVB-T Dual Digital 4",
+                        { NULL },
+                        { &cxusb_table[13], NULL },
+                },
+        }
+};
+
 static struct usb_driver cxusb_driver = {
         .name           = "dvb_usb_cxusb",
         .probe          = cxusb_probe,
diff --git a/drivers/media/dvb/dvb-usb/cxusb.h b/drivers/media/dvb/dvb-usb/cxusb.h
index 79ca7abb89a5..4768a2c35517 100644
--- a/drivers/media/dvb/dvb-usb/cxusb.h
+++ b/drivers/media/dvb/dvb-usb/cxusb.h
@@ -5,6 +5,8 @@
 #include "dvb-usb.h"
 
 /* usb commands - some of it are guesses, don't have a reference yet */
+#define CMD_BLUEBIRD_GPIO_RW 0x05
+
 #define CMD_I2C_WRITE     0x08
 #define CMD_I2C_READ      0x09
 
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
index d6d96308cbaa..6f14c853ffea 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
@@ -147,6 +147,7 @@
 #define USB_PID_DVICO_BLUEBIRD_DUAL_1_WARM              0xdb51
 #define USB_PID_DVICO_BLUEBIRD_DUAL_2_COLD              0xdb58
 #define USB_PID_DVICO_BLUEBIRD_DUAL_2_WARM              0xdb59
+#define USB_PID_DVICO_BLUEBIRD_DUAL_4                   0xdb78
 #define USB_PID_DIGITALNOW_BLUEBIRD_DUAL_1_COLD         0xdb54
 #define USB_PID_DIGITALNOW_BLUEBIRD_DUAL_1_WARM         0xdb55
 #define USB_PID_MEDION_MD95700                          0x0932