V4L/DVB (7621): Add support for Hauppauge HVR950Q/HVR850/FusioHDTV7-USB

Including support for the AU0828 USB Bridge.
Including support for the AU8522 ATSC/QAM Demodulator.
Including support for the AU8522 ATSC/QAM Demodulator.
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/frontends/Kconfig

@@ -291,6 +291,14 @@ config DVB_S5H1409
 	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
 	  to support this frontend.
 
+config DVB_AU8522
+	tristate "Auvitek AU8522 based"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
+	  to support this frontend.
+
 comment "Tuners/PLL support"
 	depends on DVB_CORE
 

drivers/media/dvb/frontends/Makefile

@@ -53,3 +53,4 @@ obj-$(CONFIG_DVB_TUNER_MT2131) += mt2131.o
 obj-$(CONFIG_DVB_S5H1409) += s5h1409.o
 obj-$(CONFIG_DVB_TUNER_XC5000) += xc5000.o
 obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o
+obj-$(CONFIG_DVB_AU8522) += au8522.o

drivers/media/dvb/frontends/au8522.c

+/*
+    Auvitek AU8522 QAM/8VSB demodulator driver
+
+    Copyright (C) 2008 Steven Toth <stoth@hauppauge.com>
+
+    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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include "dvb_frontend.h"
+#include "dvb-pll.h"
+#include "au8522.h"
+
+struct au8522_state {
+
+	struct i2c_adapter* i2c;
+
+	/* configuration settings */
+	const struct au8522_config* config;
+
+	struct dvb_frontend frontend;
+
+	u32 current_frequency;
+	fe_modulation_t current_modulation;
+
+};
+
+static int debug = 0;
+#define dprintk	if (debug) printk
+
+/* 16 bit registers, 8 bit values */
+static int au8522_writereg(struct au8522_state* state, u16 reg, u8 data)
+{
+	int ret;
+	u8 buf [] = { reg >> 8, reg & 0xff, data };
+
+	struct i2c_msg msg = { .addr = state->config->demod_address,
+			       .flags = 0, .buf = buf, .len = 3 };
+
+	ret = i2c_transfer(state->i2c, &msg, 1);
+
+	if (ret != 1)
+		printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, "
+		       "ret == %i)\n", __FUNCTION__, reg, data, ret);
+
+	return (ret != 1) ? -1 : 0;
+}
+
+static u8 au8522_readreg(struct au8522_state* state, u16 reg)
+{
+	int ret;
+	u8 b0 [] = { reg >> 8, reg & 0xff };
+	u8 b1 [] = { 0 };
+
+	struct i2c_msg msg [] = {
+		{ .addr = state->config->demod_address, .flags = 0,
+		  .buf = b0, .len = 2 },
+		{ .addr = state->config->demod_address, .flags = I2C_M_RD,
+		  .buf = b1, .len = 1 } };
+
+	ret = i2c_transfer(state->i2c, msg, 2);
+
+	if (ret != 2)
+		printk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
+	return b1[0];
+}
+
+static int au8522_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+
+	dprintk("%s(%d)\n", __FUNCTION__, enable);
+
+	if (enable)
+		return au8522_writereg(state, 0x106, 1);
+	else
+		return au8522_writereg(state, 0x106, 0);
+}
+
+static int au8522_enable_modulation(struct dvb_frontend* fe,
+	fe_modulation_t m)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+
+	dprintk("%s(0x%08x)\n", __FUNCTION__, m);
+
+	switch(m) {
+	case VSB_8:
+		dprintk("%s() VSB_8\n", __FUNCTION__);
+
+		//au8522_writereg(state, 0x410b, 0x84); // Serial
+
+		//au8522_writereg(state, 0x8090, 0x82);
+		au8522_writereg(state, 0x8090, 0x84);
+		au8522_writereg(state, 0x4092, 0x11);
+		au8522_writereg(state, 0x2005, 0x00);
+		au8522_writereg(state, 0x8091, 0x80);
+
+		au8522_writereg(state, 0x80a3, 0x0c);
+		au8522_writereg(state, 0x80a4, 0xe8);
+		au8522_writereg(state, 0x8081, 0xc4);
+		au8522_writereg(state, 0x80a5, 0x40);
+		au8522_writereg(state, 0x80a7, 0x40);
+		au8522_writereg(state, 0x80a6, 0x67);
+		au8522_writereg(state, 0x8262, 0x20);
+		au8522_writereg(state, 0x821c, 0x30);
+		au8522_writereg(state, 0x80d8, 0x1a);
+		au8522_writereg(state, 0x8227, 0xa0);
+		au8522_writereg(state, 0x8121, 0xff);
+		au8522_writereg(state, 0x80a8, 0xf0);
+		au8522_writereg(state, 0x80a9, 0x05);
+		au8522_writereg(state, 0x80aa, 0x77);
+		au8522_writereg(state, 0x80ab, 0xf0);
+		au8522_writereg(state, 0x80ac, 0x05);
+		au8522_writereg(state, 0x80ad, 0x77);
+		au8522_writereg(state, 0x80ae, 0x41);
+		au8522_writereg(state, 0x80af, 0x66);
+		au8522_writereg(state, 0x821b, 0xcc);
+		au8522_writereg(state, 0x821d, 0x80);
+		au8522_writereg(state, 0x80b5, 0xfb);
+		au8522_writereg(state, 0x80b6, 0x8e);
+		au8522_writereg(state, 0x80b7, 0x39);
+		au8522_writereg(state, 0x80a4, 0xe8);
+		au8522_writereg(state, 0x8231, 0x13);
+		break;
+	case QAM_64:
+	case QAM_256:
+		au8522_writereg(state, 0x80a3, 0x09);
+		au8522_writereg(state, 0x80a4, 0x00);
+		au8522_writereg(state, 0x8081, 0xc4);
+		au8522_writereg(state, 0x80a5, 0x40);
+		au8522_writereg(state, 0x80b5, 0xfb);
+		au8522_writereg(state, 0x80b6, 0x8e);
+		au8522_writereg(state, 0x80b7, 0x39);
+		au8522_writereg(state, 0x80aa, 0x77);
+		au8522_writereg(state, 0x80ad, 0x77);
+		au8522_writereg(state, 0x80a6, 0x67);
+		au8522_writereg(state, 0x8262, 0x20);
+		au8522_writereg(state, 0x821c, 0x30);
+		au8522_writereg(state, 0x80b8, 0x3e);
+		au8522_writereg(state, 0x80b9, 0xf0);
+		au8522_writereg(state, 0x80ba, 0x01);
+		au8522_writereg(state, 0x80bb, 0x18);
+		au8522_writereg(state, 0x80bc, 0x50);
+		au8522_writereg(state, 0x80bd, 0x00);
+		au8522_writereg(state, 0x80be, 0xea);
+		au8522_writereg(state, 0x80bf, 0xef);
+		au8522_writereg(state, 0x80c0, 0xfc);
+		au8522_writereg(state, 0x80c1, 0xbd);
+		au8522_writereg(state, 0x80c2, 0x1f);
+		au8522_writereg(state, 0x80c3, 0xfc);
+		au8522_writereg(state, 0x80c4, 0xdd);
+		au8522_writereg(state, 0x80c5, 0xaf);
+		au8522_writereg(state, 0x80c6, 0x00);
+		au8522_writereg(state, 0x80c7, 0x38);
+		au8522_writereg(state, 0x80c8, 0x30);
+		au8522_writereg(state, 0x80c9, 0x05);
+		au8522_writereg(state, 0x80ca, 0x4a);
+		au8522_writereg(state, 0x80cb, 0xd0);
+		au8522_writereg(state, 0x80cc, 0x01);
+		au8522_writereg(state, 0x80cd, 0xd9);
+		au8522_writereg(state, 0x80ce, 0x6f);
+		au8522_writereg(state, 0x80cf, 0xf9);
+		au8522_writereg(state, 0x80d0, 0x70);
+		au8522_writereg(state, 0x80d1, 0xdf);
+		au8522_writereg(state, 0x80d2, 0xf7);
+		au8522_writereg(state, 0x80d3, 0xc2);
+		au8522_writereg(state, 0x80d4, 0xdf);
+		au8522_writereg(state, 0x80d5, 0x02);
+		au8522_writereg(state, 0x80d6, 0x9a);
+		au8522_writereg(state, 0x80d7, 0xd0);
+		au8522_writereg(state, 0x8250, 0x0d);
+		au8522_writereg(state, 0x8251, 0xcd);
+		au8522_writereg(state, 0x8252, 0xe0);
+		au8522_writereg(state, 0x8253, 0x05);
+		au8522_writereg(state, 0x8254, 0xa7);
+		au8522_writereg(state, 0x8255, 0xff);
+		au8522_writereg(state, 0x8256, 0xed);
+		au8522_writereg(state, 0x8257, 0x5b);
+		au8522_writereg(state, 0x8258, 0xae);
+		au8522_writereg(state, 0x8259, 0xe6);
+		au8522_writereg(state, 0x825a, 0x3d);
+		au8522_writereg(state, 0x825b, 0x0f);
+		au8522_writereg(state, 0x825c, 0x0d);
+		au8522_writereg(state, 0x825d, 0xea);
+		au8522_writereg(state, 0x825e, 0xf2);
+		au8522_writereg(state, 0x825f, 0x51);
+		au8522_writereg(state, 0x8260, 0xf5);
+		au8522_writereg(state, 0x8261, 0x06);
+		au8522_writereg(state, 0x821a, 0x00);
+		au8522_writereg(state, 0x8546, 0x40);
+		au8522_writereg(state, 0x8210, 0x26);
+		au8522_writereg(state, 0x8211, 0xf6);
+		au8522_writereg(state, 0x8212, 0x84);
+		au8522_writereg(state, 0x8213, 0x02);
+		au8522_writereg(state, 0x8502, 0x01);
+		au8522_writereg(state, 0x8121, 0x04);
+		au8522_writereg(state, 0x8122, 0x04);
+		au8522_writereg(state, 0x852e, 0x10);
+		au8522_writereg(state, 0x80a4, 0xca);
+		au8522_writereg(state, 0x80a7, 0x40);
+		au8522_writereg(state, 0x8526, 0x01);
+		break;
+	default:
+		dprintk("%s() Invalid modulation\n", __FUNCTION__);
+		return -EINVAL;
+	}
+
+	state->current_modulation = m;
+
+	return 0;
+}
+
+/* Talk to the demod, set the FEC, GUARD, QAM settings etc */
+static int au8522_set_frontend (struct dvb_frontend* fe,
+	struct dvb_frontend_parameters *p)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+
+	dprintk("%s(frequency=%d)\n", __FUNCTION__, p->frequency);
+
+	state->current_frequency = p->frequency;
+
+	au8522_enable_modulation(fe, p->u.vsb.modulation);
+
+	/* Allow the demod to settle */
+	msleep(100);
+
+	if (fe->ops.tuner_ops.set_params) {
+		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1);
+		fe->ops.tuner_ops.set_params(fe, p);
+		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
+	}
+
+	return 0;
+}
+
+/* Reset the demod hardware and reset all of the configuration registers
+   to a default state. */
+static int au8522_init(struct dvb_frontend* fe)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+	dprintk("%s()\n", __FUNCTION__);
+
+	au8522_writereg(state, 0xa4, 1 << 5);
+
+	au8522_i2c_gate_ctrl(fe, 1);
+
+	return 0;
+}
+
+static int au8522_read_status(struct dvb_frontend* fe, fe_status_t* status)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+	u8 reg;
+	u32 tuner_status = 0;
+
+	*status = 0;
+
+	if (state->current_modulation == VSB_8) {
+		dprintk("%s() Checking VSB_8\n", __FUNCTION__);
+		//au8522_writereg(state, 0x80a4, 0x20);
+		reg = au8522_readreg(state, 0x4088);
+		if(reg & 0x01)
+			*status |= FE_HAS_VITERBI;
+		if(reg & 0x02)
+			*status |= FE_HAS_LOCK | FE_HAS_SYNC;
+	} else {
+		dprintk("%s() Checking QAM\n", __FUNCTION__);
+		reg = au8522_readreg(state, 0x4541);
+		if(reg & 0x80)
+			*status |= FE_HAS_VITERBI;
+		if(reg & 0x20)
+			*status |= FE_HAS_LOCK | FE_HAS_SYNC;
+	}
+
+	switch(state->config->status_mode) {
+	case AU8522_DEMODLOCKING:
+		dprintk("%s() DEMODLOCKING\n", __FUNCTION__);
+		if (*status & FE_HAS_VITERBI)
+			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
+		break;
+	case AU8522_TUNERLOCKING:
+		/* Get the tuner status */
+		dprintk("%s() TUNERLOCKING\n", __FUNCTION__);
+		if (fe->ops.tuner_ops.get_status) {
+			if (fe->ops.i2c_gate_ctrl)
+				fe->ops.i2c_gate_ctrl(fe, 1);
+
+			fe->ops.tuner_ops.get_status(fe, &tuner_status);
+
+			if (fe->ops.i2c_gate_ctrl)
+				fe->ops.i2c_gate_ctrl(fe, 0);
+		}
+		if (tuner_status)
+			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
+		break;
+	}
+
+	dprintk("%s() status 0x%08x\n", __FUNCTION__, *status);
+
+	return 0;
+}
+
+static int au8522_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+	dprintk("%s()\n", __FUNCTION__);
+
+	*snr = 0;
+
+	return 0;
+}
+
+static int au8522_read_signal_strength(struct dvb_frontend* fe,
+					u16* signal_strength)
+{
+	return au8522_read_snr(fe, signal_strength);
+}
+
+static int au8522_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+
+	*ucblocks = au8522_readreg(state, 0x4087);
+
+	return 0;
+}
+
+static int au8522_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+	return au8522_read_ucblocks(fe, ber);
+}
+
+static int au8522_get_frontend(struct dvb_frontend* fe,
+				struct dvb_frontend_parameters *p)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+
+	p->frequency = state->current_frequency;
+	p->u.vsb.modulation = state->current_modulation;
+
+	return 0;
+}
+
+static int au8522_get_tune_settings(struct dvb_frontend* fe,
+				     struct dvb_frontend_tune_settings *tune)
+{
+	tune->min_delay_ms = 1000;
+	return 0;
+}
+
+static void au8522_release(struct dvb_frontend* fe)
+{
+	struct au8522_state* state = fe->demodulator_priv;
+	kfree(state);
+}
+
+static struct dvb_frontend_ops au8522_ops;
+
+struct dvb_frontend* au8522_attach(const struct au8522_config* config,
+				    struct i2c_adapter* i2c)
+{
+	struct au8522_state* state = NULL;
+
+	/* allocate memory for the internal state */
+	state = kmalloc(sizeof(struct au8522_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	/* setup the state */
+	state->config = config;
+	state->i2c = i2c;
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops, &au8522_ops,
+	       sizeof(struct dvb_frontend_ops));
+	state->frontend.demodulator_priv = state;
+
+	if (au8522_init(&state->frontend) != 0) {
+		printk(KERN_ERR "%s: Failed to initialize correctly\n",
+			__FUNCTION__);
+		goto error;
+	}
+
+	/* Note: Leaving the I2C gate open here. */
+	au8522_i2c_gate_ctrl(&state->frontend, 1);
+
+	return &state->frontend;
+
+error:
+	kfree(state);
+	return NULL;
+}
+
+static struct dvb_frontend_ops au8522_ops = {
+
+	.info = {
+		.name			= "Auvitek AU8522 QAM/8VSB Frontend",
+		.type			= FE_ATSC,
+		.frequency_min		= 54000000,
+		.frequency_max		= 858000000,
+		.frequency_stepsize	= 62500,
+		.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
+	},
+
+	.init                 = au8522_init,
+	.i2c_gate_ctrl        = au8522_i2c_gate_ctrl,
+	.set_frontend         = au8522_set_frontend,
+	.get_frontend         = au8522_get_frontend,
+	.get_tune_settings    = au8522_get_tune_settings,
+	.read_status          = au8522_read_status,
+	.read_ber             = au8522_read_ber,
+	.read_signal_strength = au8522_read_signal_strength,
+	.read_snr             = au8522_read_snr,
+	.read_ucblocks        = au8522_read_ucblocks,
+	.release              = au8522_release,
+};
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable verbose debug messages");
+
+MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver");
+MODULE_AUTHOR("Steven Toth");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(au8522_attach);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ */

drivers/media/dvb/frontends/au8522.h

+/*
+    Auvitek AU8522 QAM/8VSB demodulator driver
+
+    Copyright (C) 2008 Steven Toth <stoth@hauppauge.com>
+
+    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 __AU8522_H__
+#define __AU8522_H__
+
+#include <linux/dvb/frontend.h>
+
+struct au8522_config
+{
+	/* the demodulator's i2c address */
+	u8 demod_address;
+
+	/* Return lock status based on tuner lock, or demod lock */
+#define AU8522_TUNERLOCKING 0
+#define AU8522_DEMODLOCKING 1
+	u8 status_mode;
+};
+
+#if defined(CONFIG_DVB_AU8522) || (defined(CONFIG_DVB_AU8522_MODULE) && defined(MODULE))
+extern struct dvb_frontend* au8522_attach(const struct au8522_config* config,
+					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* au8522_attach(const struct au8522_config* config,
+						  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif /* CONFIG_DVB_AU8522 */
+
+#endif /* __AU8522_H__ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ */

drivers/media/video/Kconfig

@@ -698,6 +698,8 @@ source "drivers/media/video/cx88/Kconfig"
 
 source "drivers/media/video/cx23885/Kconfig"
 
+source "drivers/media/video/au0828/Kconfig"
+
 source "drivers/media/video/ivtv/Kconfig"
 
 config VIDEO_M32R_AR

drivers/media/video/Makefile

@@ -143,5 +143,7 @@ obj-$(CONFIG_SOC_CAMERA)	+= soc_camera.o
 obj-$(CONFIG_SOC_CAMERA_MT9M001)	+= mt9m001.o
 obj-$(CONFIG_SOC_CAMERA_MT9V022)	+= mt9v022.o
 
+obj-$(CONFIG_VIDEO_AU0828) += au0828/
+
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
 EXTRA_CFLAGS += -Idrivers/media/dvb/frontends

drivers/media/video/au0828/Kconfig

+
+config VIDEO_AU0828
+	tristate "Auvitek AU0828 support"
+	depends on VIDEO_DEV && I2C && INPUT
+	select I2C_ALGOBIT
+	---help---
+	  This is a video4linux driver for Auvitek's USB device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ambarella

drivers/media/video/au0828/Makefile

+au0828-objs	:= au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o
+
+obj-$(CONFIG_VIDEO_AU0828) += au0828.o
+
+EXTRA_CFLAGS += -Idrivers/media/video
+EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
+EXTRA_CFLAGS += -Idrivers/media/dvb/frontends
+
+EXTRA_CFLAGS += $(extra-cflags-y) $(extra-cflags-m)

drivers/media/video/au0828/au0828-cards.c

+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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 "au0828.h"
+#include "au0828-cards.h"
+
+#define _dbg(level, fmt, arg...)\
+	do {\
+		if (debug >= level) \
+			printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\
+	} while (0)
+
+struct au0828_board au0828_boards[] = {
+	[AU0828_BOARD_UNKNOWN] = {
+		.name	= "Unknown board",
+	},
+	[AU0828_BOARD_HAUPPAUGE_HVR850] = {
+		.name	= "Hauppauge HVR850",
+	},
+	[AU0828_BOARD_HAUPPAUGE_HVR950Q] = {
+		.name	= "Hauppauge HVR950Q",
+	},
+	[AU0828_BOARD_DVICO_FUSIONHDTV7] = {
+		.name	= "DViCO FusionHDTV USB",
+	},
+};
+const unsigned int au0828_bcount = ARRAY_SIZE(au0828_boards);
+
+/* Tuner callback function for au0828 boards. Currently only needed
+ * for HVR1500Q, which has an xc5000 tuner.
+ */
+int au0828_tuner_callback(void *priv, int command, int arg)
+{
+	struct au0828_dev *dev = priv;
+
+	switch(dev->board) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		if(command == 0) {
+			/* Tuner Reset Command from xc5000 */
+			/* Drive the tuner into reset and out */
+			au0828_clear(dev, REG_001, 2);
+			mdelay(200);
+			au0828_set(dev, REG_001, 2);
+			mdelay(50);
+			return 0;
+		}
+		else {
+			printk(KERN_ERR
+				"%s(): Unknown command.\n", __FUNCTION__);
+			return -EINVAL;
+		}
+		break;
+	}
+
+	return 0; /* Should never be here */
+}
+
+/*
+ * The bridge has between 8 and 12 gpios.
+ * Regs 1 and 0 deal with output enables.
+ * Regs 3 and 2 * deal with direction.
+ */
+void au0828_gpio_setup(struct au0828_dev *dev)
+{
+	switch(dev->board) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+		/* GPIO's
+		 * 4 - CS5340
+		 * 5 - AU8522 Demodulator
+		 * 6 - eeprom W/P
+		 * 9 - XC5000 Tuner
+		 */
+
+		/* Into reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0x88 | 0x20);
+		au0828_write(dev, REG_001, 0x0);
+		au0828_write(dev, REG_000, 0x0);
+		msleep(100);
+
+		/* Out of reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_001, 0x02);
+		au0828_write(dev, REG_002, 0x88 | 0x20);
+		au0828_write(dev, REG_000, 0x88 | 0x20 | 0x40);
+		msleep(250);
+		break;
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		/* GPIO's
+		 * 6 - ?
+		 * 8 - AU8522 Demodulator
+		 * 9 - XC5000 Tuner
+		 */
+
+		/* Into reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0xa0);
+		au0828_write(dev, REG_001, 0x0);
+		au0828_write(dev, REG_000, 0x0);
+		msleep(100);
+
+		/* Out of reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0xa0);
+		au0828_write(dev, REG_001, 0x02);
+		au0828_write(dev, REG_000, 0xa0);
+		msleep(250);
+		break;
+	}
+}
+
+/* table of devices that work with this driver */
+struct usb_device_id au0828_usb_id_table [] = {
+	{ USB_DEVICE(0x2040, 0x7200),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7240),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 },
+	{ USB_DEVICE(0x0fe9, 0xd620),
+		.driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(usb, au0828_usb_id_table);

drivers/media/video/au0828/au0828-cards.h

+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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.
+ */
+
+#define AU0828_BOARD_UNKNOWN		0
+#define AU0828_BOARD_HAUPPAUGE_HVR950Q	1
+#define AU0828_BOARD_HAUPPAUGE_HVR850 	2
+#define AU0828_BOARD_DVICO_FUSIONHDTV7	3

drivers/media/video/au0828/au0828-core.c

+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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 <linux/module.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+
+#include "au0828.h"
+
+static unsigned int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debug messages");
+
+#define _err(fmt, arg...)\
+	do {\
+		printk(KERN_ERR DRIVER_NAME "/0: " fmt, ## arg);\
+	} while (0)
+
+#define _info(fmt, arg...)\
+	do {\
+		printk(KERN_INFO DRIVER_NAME "/0: " fmt, ## arg);\
+	} while (0)
+
+#define _dbg(level, fmt, arg...)\
+	do {\
+		if (debug >= level) \
+			printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\
+	} while (0)
+
+#define _AU0828_BULKPIPE 0x03
+#define _BULKPIPESIZE 0xffff
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size);
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size);
+
+/* USB Direction */
+#define CMD_REQUEST_IN		0x00
+#define CMD_REQUEST_OUT		0x01
+
+u32 au0828_readreg(struct au0828_dev *dev, u16 reg)
+{
+	recv_control_msg(dev, CMD_REQUEST_IN, 0, reg, dev->ctrlmsg, 1);
+	_dbg(3,"%s(0x%x) = 0x%x\n", __FUNCTION__, reg, dev->ctrlmsg[0]);
+	return dev->ctrlmsg[0];
+}
+
+u32 au0828_writereg(struct au0828_dev *dev, u16 reg, u32 val)
+{
+	_dbg(3,"%s(0x%x, 0x%x)\n", __FUNCTION__, reg, val);
+	return send_control_msg(dev, CMD_REQUEST_OUT, val, reg, dev->ctrlmsg, 0);
+}
+
+static void cmd_msg_dump(struct au0828_dev *dev)
+{
+	int i;
+
+	for (i = 0;i < sizeof(dev->ctrlmsg); i+=16)
+		_dbg(1,"%s() %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x "
+			"%02x %02x %02x %02x %02x %02x\n",
+			__FUNCTION__,
+			dev->ctrlmsg[i+0], dev->ctrlmsg[i+1],
+			dev->ctrlmsg[i+2], dev->ctrlmsg[i+3],
+			dev->ctrlmsg[i+4], dev->ctrlmsg[i+5],
+			dev->ctrlmsg[i+6], dev->ctrlmsg[i+7],
+			dev->ctrlmsg[i+8], dev->ctrlmsg[i+9],
+			dev->ctrlmsg[i+10], dev->ctrlmsg[i+11],
+			dev->ctrlmsg[i+12], dev->ctrlmsg[i+13],
+			dev->ctrlmsg[i+14], dev->ctrlmsg[i+15]);
+}
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size)
+{
+	int status = -ENODEV;
+	mutex_lock(&dev->mutex);
+	if (dev->usbdev) {
+
+		/* cp must be memory that has been allocated by kmalloc */
+		status = usb_control_msg(dev->usbdev,
+				usb_sndctrlpipe(dev->usbdev, 0),
+				request,
+				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				value, index,
+				cp, size, 1000);
+
+		status = min(status, 0);
+
+		if (status < 0) {
+			_err("%s() Failed sending control message, error %d.\n",
+				__FUNCTION__,
+				status);
+		}
+
+	}
+	mutex_unlock(&dev->mutex);
+	return status;
+}
+
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size)
+{
+	int status = -ENODEV;
+	mutex_lock(&dev->mutex);
+	if (dev->usbdev) {
+
+		memset(dev->ctrlmsg, 0, sizeof(dev->ctrlmsg));
+
+		/* cp must be memory that has been allocated by kmalloc */
+		status = usb_control_msg(dev->usbdev,
+				usb_rcvctrlpipe(dev->usbdev, 0),
+				request,
+				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				value, index,
+				cp, size, 1000);
+
+		status = min(status, 0);
+
+		if (status < 0) {
+			_err("%s() Failed receiving ctrl msg, error %d.\n",
+				__FUNCTION__,
+				status);
+		}
+		else
+			if (debug > 4)
+				cmd_msg_dump(dev);
+	}
+	mutex_unlock(&dev->mutex);
+	return status;
+}
+static void au0828_usb_disconnect(struct usb_interface *interface)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+
+	_dbg(1,"%s()\n", __FUNCTION__);
+
+	/* Digital TV */
+	au0828_dvb_unregister(dev);
+
+	/* I2C */
+	au0828_i2c_unregister(dev);
+
+	usb_set_intfdata(interface, NULL);
+
+	mutex_lock(&dev->mutex);
+	dev->usbdev = NULL;
+	mutex_unlock(&dev->mutex);
+
+	kfree(dev);
+
+}
+
+static int au0828_usb_probe (struct usb_interface *interface,
+	const struct usb_device_id *id)
+{
+	int ifnum;
+	struct au0828_dev *dev;
+	struct usb_device *usbdev = interface_to_usbdev(interface);
+
+	ifnum = interface->altsetting->desc.bInterfaceNumber;
+
+	if (ifnum != 0)
+		return -ENODEV;
+
+	_dbg(1,"%s() vendor id 0x%x device id 0x%x ifnum:%d\n",
+		__FUNCTION__,
+		le16_to_cpu(usbdev->descriptor.idVendor),
+		le16_to_cpu(usbdev->descriptor.idProduct),
+		ifnum);
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL) {
+		_err("Unable to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	mutex_init(&dev->mutex);
+	mutex_init(&dev->dvb.lock);
+	dev->usbdev = usbdev;
+	dev->board = id->driver_info;
+
+	usb_set_intfdata(interface, dev);
+
+	/* Power Up the bridge */
+	au0828_write(dev, REG_600, 1 << 4);
+
+	/* Bring up the GPIO's and supporting devices */
+	au0828_gpio_setup(dev);
+
+	/* I2C */
+	au0828_i2c_register(dev);
+
+	/* Digital TV */
+	au0828_dvb_register(dev);
+
+	_info("Registered device AU0828 [%s]\n",
+		au0828_boards[dev->board].name);
+
+	return 0;
+}
+
+static struct usb_driver au0828_usb_driver = {
+	.name		= DRIVER_NAME,
+	.probe		= au0828_usb_probe,
+	.disconnect	= au0828_usb_disconnect,
+	.id_table	= au0828_usb_id_table,
+};
+
+static int __init au0828_init(void)
+{
+	int ret;
+
+	_info("au0828 driver loaded\n");
+
+	ret = usb_register(&au0828_usb_driver);
+	if (ret)
+		_err("usb_register failed, error = %d\n", ret);
+
+	return ret;
+}
+
+static void __exit au0828_exit(void)
+{
+	usb_deregister(&au0828_usb_driver);
+}
+
+module_init(au0828_init);
+module_exit(au0828_exit);
+
+MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products");
+MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
+MODULE_LICENSE("GPL");

drivers/media/video/au0828/au0828-dvb.c

+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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 <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/suspend.h>
+#include <media/v4l2-common.h>
+
+#include "au0828.h"
+
+#include "au8522.h"
+#include "xc5000.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+unsigned int dvb_debug = 1;
+
+#define _dbg(level, fmt, arg...)\
+	do { if (dvb_debug >= level)\
+		printk(KERN_DEBUG "%s/0: " fmt, DRIVER_NAME, ## arg);\
+	} while (0)
+
+static struct au8522_config hauppauge_hvr950q_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+};
+
+static struct xc5000_config hauppauge_hvr950q_tunerconfig = {
+	.i2c_address      = 0x61,
+	.if_khz           = 6000,
+	.tuner_callback   = au0828_tuner_callback
+};
+
+/*-------------------------------------------------------------------*/
+static void urb_completion(struct urb *purb)
+{
+	u8 *ptr;
+	struct au0828_dev *dev = purb->context;
+	int ptype = usb_pipetype(purb->pipe);
+
+	if (dev->urb_streaming == 0)
+		return;
+
+	if (ptype != PIPE_BULK) {
+		printk(KERN_ERR "%s() Unsupported URB type %d\n", __FUNCTION__, ptype);
+		return;
+	}
+
+	ptr = (u8 *)purb->transfer_buffer;
+
+	/* Feed the transport payload into the kernel demux */
+	dvb_dmx_swfilter_packets(&dev->dvb.demux, purb->transfer_buffer, purb->actual_length / 188);
+
+	/* Clean the buffer before we requeue */
+	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
+
+	/* Requeue URB */
+	usb_submit_urb(purb, GFP_ATOMIC);
+}
+
+static int stop_urb_transfer(struct au0828_dev *dev)
+{
+	int i;
+
+	printk(KERN_INFO "%s()\n", __FUNCTION__);
+
+	/* FIXME:  Do we need to free the transfer_buffers? */
+	for (i = 0; i < URB_COUNT; i++) {
+		usb_kill_urb(dev->urbs[i]);
+		kfree(dev->urbs[i]->transfer_buffer);
+		usb_free_urb(dev->urbs[i]);
+	}
+
+	dev->urb_streaming = 0;
+
+	return 0;
+}
+
+#define _AU0828_BULKPIPE 0x83
+#define _BULKPIPESIZE 0xe522
+
+static int start_urb_transfer(struct au0828_dev *dev)
+{
+	struct urb *purb;
+	int i, ret = -ENOMEM;
+	unsigned int pipe = usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE);
+	int pipesize = usb_maxpacket(dev->usbdev, pipe, usb_pipeout(pipe));
+	int packets = _BULKPIPESIZE / pipesize;
+	int transfer_buflen = packets * pipesize;
+
+	printk(KERN_INFO "%s() transfer_buflen = %d\n", __FUNCTION__, transfer_buflen);
+
+	if (dev->urb_streaming) {
+		printk("%s: iso xfer already running!\n", __FUNCTION__);
+		return 0;
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+
+		dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!dev->urbs[i]) {
+			goto err;
+		}
+
+		purb = dev->urbs[i];
+
+		purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL);
+		if (!purb->transfer_buffer) {
+			usb_free_urb(purb);
+			dev->urbs[i] = 0;
+			goto err;
+		}
+
+		purb->status = -EINPROGRESS;
+		usb_fill_bulk_urb(purb,
+				  dev->usbdev,
+				  usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE),
+				  purb->transfer_buffer,
+				  URB_BUFSIZE,
+				  urb_completion,
+				  dev);
+
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+		ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
+		if (ret != 0) {
+			stop_urb_transfer(dev);
+			printk("%s: failed urb submission, err = %d\n", __FUNCTION__, ret);
+			return ret;
+		}
+	}
+
+	dev->urb_streaming = 1;
+	ret = 0;
+
+err:
+	return ret;
+}
+
+static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	printk(KERN_INFO "%s() pid = 0x%x index = %d\n", __FUNCTION__, feed->pid, feed->index);
+
+	if (!demux->dmx.frontend)
+		return -EINVAL;
+
+	printk(KERN_INFO "%s() Preparing, feeding = %d\n", __FUNCTION__, dvb->feeding);
+	if (dvb) {
+		mutex_lock(&dvb->lock);
+		if (dvb->feeding++ == 0) {
+			printk(KERN_INFO "%s() Starting Transport DMA\n",
+				__FUNCTION__);
+			au0828_write(dev, 0x608, 0x90);
+			au0828_write(dev, 0x609, 0x72);
+			au0828_write(dev, 0x60a, 0x71);
+			au0828_write(dev, 0x60b, 0x01);
+			ret = start_urb_transfer(dev);
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	printk(KERN_INFO "%s() pid = 0x%x index = %d\n", __FUNCTION__, feed->pid, feed->index);
+
+	if (dvb) {
+		mutex_lock(&dvb->lock);
+		if (--dvb->feeding == 0) {
+			printk(KERN_INFO "%s() Stopping Transport DMA\n",
+				__FUNCTION__);
+			au0828_write(dev, 0x608, 0x00);
+			au0828_write(dev, 0x609, 0x00);
+			au0828_write(dev, 0x60a, 0x00);
+			au0828_write(dev, 0x60b, 0x00);
+			ret = stop_urb_transfer(dev);
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+int dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int result;
+
+	/* register adapter */
+	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
+				      &dev->usbdev->dev, adapter_nr);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_adapter;
+	}
+	dvb->adapter.priv = dev;
+
+	/* register frontend */
+	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_frontend;
+	}
+
+	/* register demux stuff */
+	dvb->demux.dmx.capabilities =
+		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
+		DMX_MEMORY_BASED_FILTERING;
+	dvb->demux.priv       = dev;
+	dvb->demux.filternum  = 256;
+	dvb->demux.feednum    = 256;
+	dvb->demux.start_feed = au0828_dvb_start_feed;
+	dvb->demux.stop_feed  = au0828_dvb_stop_feed;
+	result = dvb_dmx_init(&dvb->demux);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_dmx;
+	}
+
+	dvb->dmxdev.filternum    = 256;
+	dvb->dmxdev.demux        = &dvb->demux.dmx;
+	dvb->dmxdev.capabilities = 0;
+	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_dmxdev;
+	}
+
+	dvb->fe_hw.source = DMX_FRONTEND_0;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_fe_hw;
+	}
+
+	dvb->fe_mem.source = DMX_MEMORY_FE;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_fe_mem;
+	}
+
+	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
+		       DRIVER_NAME, result);
+		goto fail_fe_conn;
+	}
+
+	/* register network adapter */
+	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+	return 0;
+
+fail_fe_conn:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+fail_fe_mem:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+fail_fe_hw:
+	dvb_dmxdev_release(&dvb->dmxdev);
+fail_dmxdev:
+	dvb_dmx_release(&dvb->demux);
+fail_dmx:
+	dvb_unregister_frontend(dvb->frontend);
+fail_frontend:
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+fail_adapter:
+	return result;
+}
+
+void au0828_dvb_unregister(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+
+	dvb_net_release(&dvb->net);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	dvb_dmxdev_release(&dvb->dmxdev);
+	dvb_dmx_release(&dvb->demux);
+	dvb_unregister_frontend(dvb->frontend);
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+}
+
+/* All the DVB attach calls go here, this function get's modified
+ * for each new card. No other function in this file needs
+ * to change.
+ */
+int au0828_dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret;
+
+	/* init frontend */
+	switch (dev->board) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_hvr950q_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL) {
+			hauppauge_hvr950q_tunerconfig.priv = dev;
+			dvb_attach(xc5000_attach, dvb->frontend,
+				&dev->i2c_adap,
+				&hauppauge_hvr950q_tunerconfig);
+		}
+		break;
+	default:
+		printk("The frontend of your DVB/ATSC card isn't supported yet\n");
+		break;
+	}
+	if (NULL == dvb->frontend) {
+		printk("Frontend initialization failed\n");
+		return -1;
+	}
+
+	/* Put the analog decoder in standby to keep it quiet */
+	au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL);
+
+	if (dvb->frontend->ops.analog_ops.standby)
+		dvb->frontend->ops.analog_ops.standby(dvb->frontend);
+
+	/* register everything */
+	ret = dvb_register(dev);
+	if (ret < 0) {
+		if (dvb->frontend->ops.release)
+			dvb->frontend->ops.release(dvb->frontend);
+		return ret;
+	}
+
+	return 0;
+}

drivers/media/video/au0828/au0828-i2c.c

+/*
+ *  Driver for the Auvitek AU0828 USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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 <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+#include "au0828.h"
+
+#include <media/v4l2-common.h>
+
+static unsigned int i2c_debug;
+module_param(i2c_debug, int, 0644);
+MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
+
+static unsigned int i2c_scan = 0;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+
+#define dprintk(level, fmt, arg...)\
+	do { if (i2c_debug >= level)\
+		printk(KERN_DEBUG "%s/0: " fmt, DRIVER_NAME, ## arg);\
+	} while (0)
+
+#define I2C_WAIT_DELAY 512
+#define I2C_WAIT_RETRY 64
+
+static inline int i2c_slave_did_write_ack(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, REG_201) & 0x08 ? 0 : 1;
+}
+
+static inline int i2c_slave_did_read_ack(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, REG_201) & 0x02 ? 0 : 1;
+}
+
+static int i2c_wait_read_ack(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_slave_did_read_ack(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_read_busy(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, REG_201) & 0x01 ? 0 : 1;
+}
+
+static int i2c_wait_read_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_is_read_busy(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_write_done(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, REG_201) & 0x04 ? 1 : 0;
+}
+
+static int i2c_wait_write_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (i2c_is_write_done(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_busy(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, REG_201) & 0x10 ? 1 : 0;
+}
+
+static int i2c_wait_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_is_busy(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_sendbytes(struct i2c_adapter *i2c_adap,
+	const struct i2c_msg *msg, int joined_rlen)
+{
+	int i, strobe = 0;
+	struct au0828_dev *dev = i2c_adap->algo_data;
+
+	dprintk(1, "%s()\n", __FUNCTION__);
+
+	au0828_write(dev, REG_2FF, 0x01);
+	au0828_write(dev, REG_202, 0x07);
+
+	/* Hardware needs 8 bit addresses */
+	au0828_write(dev, REG_203, msg->addr << 1);
+
+	if (i2c_debug)
+		dprintk(1, "SEND: %02x\n", msg->addr);
+
+	for (i=0; i < msg->len;) {
+
+		if (i2c_debug)
+			dprintk(1, " %02x\n", msg->buf[i]);
+
+		au0828_write(dev, REG_205, msg->buf[i]);
+
+		strobe++;
+		i++;
+
+		if ((strobe >= 4) || (i >= msg->len)) {
+
+			/* Strobe the byte into the bus */
+			if (i < msg->len)
+				au0828_write(dev, REG_200, 0x41);
+			else
+				au0828_write(dev, REG_200, 0x01);
+
+			/* Reset strobe trigger */
+			strobe = 0;
+
+			if (!i2c_wait_write_done(i2c_adap))
+				return -EIO;
+
+		}
+
+	}
+	if (!i2c_wait_done(i2c_adap))
+		return -EIO;
+
+	if (i2c_debug)
+		dprintk(1, "\n");
+
+	return msg->len;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_readbytes(struct i2c_adapter *i2c_adap,
+	const struct i2c_msg *msg, int joined)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	int i;
+
+	dprintk(1, "%s()\n", __FUNCTION__);
+
+	au0828_write(dev, REG_2FF, 0x01);
+	au0828_write(dev, REG_202, 0x07);
+
+	/* Hardware needs 8 bit addresses */
+	au0828_write(dev, REG_203, msg->addr << 1);
+
+	if (i2c_debug)
+		dprintk(1, " RECV:\n");
+
+	/* Deal with i2c_scan */
+	if (msg->len == 0) {
+		au0828_write(dev, REG_200, 0x20);
+		if (i2c_wait_read_ack(i2c_adap))
+			return -EIO;
+		return 0;
+	}
+
+	for (i=0; i < msg->len;) {
+
+		i++;
+
+		if (i < msg->len)
+			au0828_write(dev, REG_200, 0x60);
+		else
+			au0828_write(dev, REG_200, 0x20);
+
+		if (!i2c_wait_read_done(i2c_adap))
+			return -EIO;
+
+		msg->buf[i-1] = au0828_read(dev, REG_209) & 0xff;
+
+		if (i2c_debug)
+			dprintk(1, " %02x\n", msg->buf[i-1]);
+	}
+	if (!i2c_wait_done(i2c_adap))
+		return -EIO;
+
+	if (i2c_debug)
+		dprintk(1, "\n");
+
+	return msg->len;
+}
+
+static int i2c_xfer(struct i2c_adapter *i2c_adap,
+		    struct i2c_msg *msgs, int num)
+{
+	int i, retval = 0;
+
+	dprintk(1, "%s(num = %d)\n", __FUNCTION__, num);
+
+	for (i = 0 ; i < num; i++) {
+		dprintk(1, "%s(num = %d) addr = 0x%02x  len = 0x%x\n",
+			__FUNCTION__, num, msgs[i].addr, msgs[i].len);
+		if (msgs[i].flags & I2C_M_RD) {
+			/* read */
+			retval = i2c_readbytes(i2c_adap, &msgs[i], 0);
+		} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
+			   msgs[i].addr == msgs[i + 1].addr) {
+			/* write then read from same address */
+			retval = i2c_sendbytes(i2c_adap, &msgs[i],
+					       msgs[i + 1].len);
+			if (retval < 0)
+				goto err;
+			i++;
+			retval = i2c_readbytes(i2c_adap, &msgs[i], 1);
+		} else {
+			/* write */
+			retval = i2c_sendbytes(i2c_adap, &msgs[i], 0);
+		}
+		if (retval < 0)
+			goto err;
+	}
+	return num;
+
+err:
+	return retval;
+}
+
+static int attach_inform(struct i2c_client *client)
+{
+	dprintk(1, "%s i2c attach [addr=0x%x,client=%s]\n",
+		client->driver->driver.name, client->addr, client->name);
+
+	if (!client->driver->command)
+		return 0;
+
+	return 0;
+}
+
+static int detach_inform(struct i2c_client *client)
+{
+	dprintk(1, "i2c detach [client=%s]\n", client->name);
+
+	return 0;
+}
+
+void au0828_call_i2c_clients(struct au0828_dev *dev,
+			      unsigned int cmd, void *arg)
+{
+	if (dev->i2c_rc != 0)
+		return;
+
+	i2c_clients_command(&dev->i2c_adap, cmd, arg);
+}
+
+static u32 au0828_functionality(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm au0828_i2c_algo_template = {
+	.master_xfer	= i2c_xfer,
+	.functionality	= au0828_functionality,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_adapter au0828_i2c_adap_template = {
+	.name              = DRIVER_NAME,
+	.owner             = THIS_MODULE,
+	.id                = I2C_HW_B_AU0828,
+	.algo              = &au0828_i2c_algo_template,
+	.class             = I2C_CLASS_TV_ANALOG,
+	.client_register   = attach_inform,
+	.client_unregister = detach_inform,
+};
+
+static struct i2c_client au0828_i2c_client_template = {
+	.name	= "au0828 internal",
+};
+
+static char *i2c_devs[128] = {
+	[ 0x8e >> 1 ] = "au8522",
+	[ 0xa0 >> 1 ] = "eeprom",
+	[ 0xc2 >> 1 ] = "tuner/xc5000",
+};
+
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+	unsigned char buf;
+	int i, rc;
+
+	for (i = 0; i < 128; i++) {
+		c->addr = i;
+		rc = i2c_master_recv(c, &buf, 0);
+		if (rc < 0)
+			continue;
+		printk("%s: i2c scan: found device @ 0x%x  [%s]\n",
+		       name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
+	}
+}
+
+/* init + register i2c algo-bit adapter */
+int au0828_i2c_register(struct au0828_dev *dev)
+{
+	dprintk(1, "%s()\n", __FUNCTION__);
+
+	memcpy(&dev->i2c_adap, &au0828_i2c_adap_template,
+	       sizeof(dev->i2c_adap));
+	memcpy(&dev->i2c_algo, &au0828_i2c_algo_template,
+	       sizeof(dev->i2c_algo));
+	memcpy(&dev->i2c_client, &au0828_i2c_client_template,
+	       sizeof(dev->i2c_client));
+
+	dev->i2c_adap.dev.parent = &dev->usbdev->dev;
+
+	strlcpy(dev->i2c_adap.name, DRIVER_NAME,
+		sizeof(dev->i2c_adap.name));
+
+	dev->i2c_algo.data = dev;
+	dev->i2c_adap.algo_data = dev;
+	i2c_set_adapdata(&dev->i2c_adap, dev);
+	i2c_add_adapter(&dev->i2c_adap);
+
+	dev->i2c_client.adapter = &dev->i2c_adap;
+
+	if (0 == dev->i2c_rc) {
+		printk("%s: i2c bus registered\n", DRIVER_NAME);
+		if (i2c_scan)
+			do_i2c_scan(DRIVER_NAME, &dev->i2c_client);
+	} else
+		printk("%s: i2c bus register FAILED\n", DRIVER_NAME);
+	return dev->i2c_rc;
+}
+
+int au0828_i2c_unregister(struct au0828_dev *dev)
+{
+	i2c_del_adapter(&dev->i2c_adap);
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/video/au0828/au0828-reg.h

+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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.
+ */
+
+#define REG_000 0x000
+#define REG_001 0x001
+#define REG_002 0x002
+#define REG_003 0x003
+
+#define REG_200 0x200
+#define REG_201 0x201
+#define REG_202 0x202
+#define REG_203 0x203
+#define REG_205 0x205
+#define REG_209 0x209
+#define REG_2FF 0x2ff
+
+#define REG_600 0x600

drivers/media/video/au0828/au0828.h

+/*
+ *  Driver for the Auvitek AU0828 USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
+ *
+ *  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 <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+/* DVB */
+#include "demux.h"
+#include "dmxdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+#include "dvbdev.h"
+
+#include "au0828-reg.h"
+#include "au0828-cards.h"
+
+#define DRIVER_NAME "au0828"
+#define URB_COUNT   16
+//#define URB_BUFSIZE (312 * 188)
+#define URB_BUFSIZE (0xe522)
+
+struct au0828_board {
+	char *name;
+};
+
+struct au0828_dvb {
+	struct mutex lock;
+	struct dvb_adapter adapter;
+	struct dvb_frontend *frontend;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend fe_hw;
+	struct dmx_frontend fe_mem;
+	struct dvb_net net;
+	int feeding;
+};
+
+struct au0828_dev {
+	struct mutex mutex;
+	struct usb_device	*usbdev;
+	int			board;
+	u8			ctrlmsg[64];
+
+	/* I2C */
+	struct i2c_adapter		i2c_adap;
+	struct i2c_algo_bit_data	i2c_algo;
+	struct i2c_client		i2c_client;
+	u32 				i2c_rc;
+
+	/* Digital */
+	struct au0828_dvb		dvb;
+
+	/* USB / URB Related */
+	int		urb_streaming;
+	struct urb	*urbs[URB_COUNT];
+
+};
+
+struct au0828_buff {
+	struct au0828_dev	*dev;
+	struct urb		*purb;
+	struct list_head	buff_list;
+};
+
+/* ----------------------------------------------------------- */
+#define au0828_read(dev,reg) au0828_readreg(dev,reg)
+#define au0828_write(dev,reg,value) au0828_writereg(dev,reg,value)
+#define au0828_andor(dev,reg,mask,value) \
+ au0828_writereg(dev,reg,(au0828_readreg(dev,reg)&~(mask))|((value)&(mask)))
+
+#define au0828_set(dev,reg,bit) au0828_andor(dev,(reg),(bit),(bit))
+#define au0828_clear(dev,reg,bit) au0828_andor(dev,(reg),(bit),0)
+
+/* ----------------------------------------------------------- */
+/* au0828-core.c */
+extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
+extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
+
+/* ----------------------------------------------------------- */
+/* au0828-cards.c */
+extern struct au0828_board au0828_boards[];
+extern struct usb_device_id au0828_usb_id_table[];
+extern const unsigned int au0828_bcount;
+extern void au0828_gpio_setup(struct au0828_dev *dev);
+extern int au0828_tuner_callback(void *priv, int command, int arg);
+
+/* ----------------------------------------------------------- */
+/* au0828-i2c.c */
+extern int au0828_i2c_register(struct au0828_dev *dev);
+extern int au0828_i2c_unregister(struct au0828_dev *dev);
+extern void au0828_call_i2c_clients(struct au0828_dev *dev,
+	unsigned int cmd, void *arg);
+
+/* ----------------------------------------------------------- */
+/* au0828-dvb.c */
+extern int au0828_dvb_register(struct au0828_dev *dev);
+extern void au0828_dvb_unregister(struct au0828_dev *dev);