[PATCH] dvb: Add new dvb bt8xx driver

From: Michael Hunold <hunold@linuxtv.org>

new DVB driver for bt878 based "budget" DVB cards (Nebula, Pinnacle PCTV,
Twinhan DST)

drivers/media/dvb/Kconfig

@@ -45,5 +45,9 @@ comment "Supported FlexCopII (B2C2) Adapters"
 	depends on DVB_CORE && PCI
 source "drivers/media/dvb/b2c2/Kconfig"
 
+comment "Supported BT878 Adapters"
+	depends on DVB_CORE && PCI
+source "drivers/media/dvb/bt8xx/Kconfig"
+
 endmenu
 

drivers/media/dvb/Makefile

@@ -2,5 +2,5 @@
 # Makefile for the kernel multimedia device drivers.
 #
 
-obj-y        := dvb-core/ frontends/ ttpci/ ttusb-dec/ ttusb-budget/ b2c2/
+obj-y        := dvb-core/ frontends/ ttpci/ ttusb-dec/ ttusb-budget/ b2c2/ bt8xx/
 

drivers/media/dvb/bt8xx/Kconfig

+config DVB_BT8XX
+	tristate "Nebula/Pinnacle PCTV PCI cards"
+	depends on DVB_CORE && PCI && VIDEO_BT848
+	help
+	  Support for PCI cards based on the Bt8xx PCI bridge. Examples are
+	  the Nebula cards, the Pinnacle PCTV cards, and Twinhan DST cards.
+
+          Since these cards have no MPEG decoder onboard, they transmit
+	  only compressed MPEG data over the PCI bus, so you need
+	  an external software decoder to watch TV on your computer.
+
+	  Say Y if you own such a device and want to use it.
+

drivers/media/dvb/bt8xx/Makefile

+
+obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o
+
+EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video
+

drivers/media/dvb/bt8xx/bt878.h

+/* 
+    bt878.h - Bt878 audio module (register offsets)
+
+    Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de>
+
+    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 _BT878_H_
+#define _BT878_H_
+
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include "bt848.h"
+
+#define BT878_VERSION_CODE 0x000000
+
+#define BT878_AINT_STAT		0x100
+#define BT878_ARISCS		(0xf<<28)
+#define BT878_ARISC_EN		(1<<27)
+#define BT878_ASCERR		(1<<19)
+#define BT878_AOCERR		(1<<18)
+#define BT878_APABORT		(1<<17)
+#define BT878_ARIPERR		(1<<16)
+#define BT878_APPERR		(1<<15)
+#define BT878_AFDSR		(1<<14)
+#define BT878_AFTRGT		(1<<13)
+#define BT878_AFBUS		(1<<12)
+#define BT878_ARISCI		(1<<11)
+#define BT878_AOFLOW		(1<<3)
+
+#define BT878_AINT_MASK		0x104
+
+#define BT878_AGPIO_DMA_CTL	0x10c
+#define BT878_A_GAIN		(0xf<<28)
+#define BT878_A_G2X		(1<<27)
+#define BT878_A_PWRDN		(1<<26)
+#define BT878_A_SEL		(3<<24)
+#define BT878_DA_SCE		(1<<23)
+#define BT878_DA_LRI		(1<<22)
+#define BT878_DA_MLB		(1<<21)
+#define BT878_DA_LRD		(0x1f<<16)
+#define BT878_DA_DPM		(1<<15)
+#define BT878_DA_SBR		(1<<14)
+#define BT878_DA_ES2		(1<<13)
+#define BT878_DA_LMT		(1<<12)
+#define BT878_DA_SDR		(0xf<<8)
+#define BT878_DA_IOM		(3<<6)
+#define BT878_DA_APP		(1<<5)
+#define BT878_ACAP_EN		(1<<4)
+#define BT878_PKTP		(3<<2)
+#define BT878_RISC_EN		(1<<1)
+#define BT878_FIFO_EN		1
+
+#define BT878_APACK_LEN		0x110
+#define BT878_AFP_LEN		(0xff<<16)
+#define BT878_ALP_LEN		0xfff
+
+#define BT878_ARISC_START	0x114
+
+#define BT878_ARISC_PC		0x120
+
+/* BT878 FUNCTION 0 REGISTERS */
+#define BT878_GPIO_DMA_CTL	0x10c
+
+/* Interrupt register */
+#define BT878_INT_STAT		0x100
+#define BT878_INT_MASK		0x104
+#define BT878_I2CRACK		(1<<25)
+#define BT878_I2CDONE		(1<<8)
+
+#define BT878_MAX 4
+
+#define BT878_RISC_SYNC_MASK	(1 << 15)
+
+extern int bt878_num;
+extern struct bt878 bt878[BT878_MAX];
+
+struct bt878 {
+	struct semaphore  gpio_lock;
+	unsigned int nr;
+	unsigned int bttv_nr;
+	struct dvb_adapter *adap_ptr;
+	struct pci_dev *dev;
+	unsigned int id;
+	unsigned int TS_Size;
+	unsigned char revision;
+	unsigned int irq;
+	unsigned long bt878_adr;
+	unsigned char *bt878_mem; /* function 1 */
+
+	volatile u32 finished_block;
+	volatile u32 last_block;
+	u32 block_count;
+	u32 block_bytes;
+	u32 line_bytes;
+	u32 line_count;
+
+	u32 buf_size;
+	u8 *buf_cpu;
+	dma_addr_t buf_dma;
+
+	u32 risc_size;
+	u32 *risc_cpu;
+	dma_addr_t risc_dma;
+	u32 risc_pos;
+
+	struct tasklet_struct tasklet;
+	int shutdown;	
+};
+
+void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
+		u32 irq_err_ignore);
+void bt878_stop(struct bt878 *bt);	     
+
+#if defined(__powerpc__)	/* big-endian */
+extern __inline__ void io_st_le32(volatile unsigned *addr, unsigned val)
+{
+	__asm__ __volatile__("stwbrx %1,0,%2":"=m"(*addr):"r"(val),
+			     "r"(addr));
+	__asm__ __volatile__("eieio":::"memory");
+}
+
+#define bmtwrite(dat,adr)  io_st_le32((unsigned *)(adr),(dat))
+#define bmtread(adr)       ld_le32((unsigned *)(adr))
+#else
+#define bmtwrite(dat,adr)  writel((dat), (char *) (adr))
+#define bmtread(adr)       readl(adr)
+#endif
+
+#endif

drivers/media/dvb/bt8xx/dvb-bt8xx.h

+/*
+ * Bt8xx based DVB adapter driver 
+ *
+ * Copyright (C) 2002,2003 Florian Schirmer <schirmer@taytron.net>
+ * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de>
+ * Copyright (C) 1999-2001 Ralph  Metzler & Marcus Metzler for convergence integrated media GmbH
+ * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
+ *
+ * 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/i2c.h>
+#include "dvbdev.h"
+#include "dvb_net.h"
+
+struct dvb_bt8xx_card {
+
+	struct list_head list;
+	u8 active;
+	char card_name[32];
+	struct dvb_adapter *dvb_adapter;
+	struct bt878 *bt;
+	unsigned int bttv_nr;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend fe_hw;
+	struct dmx_frontend fe_mem;
+	u32 gpio_mode;
+	u32 op_sync_orin;
+	u32 irq_err_ignore;
+	struct i2c_adapter *i2c_adapter;
+	struct dvb_net dvbnet;
+				
+};

drivers/media/dvb/frontends/Kconfig

 comment "Supported Frontend Modules"
 	depends on DVB
 
+config DVB_TWINHAN_DST
+	tristate "TWINHAN DST based DVB-S frontend (QPSK)"
+	depends on DVB_CORE
+	help
+	  Used in such cards as the VP-1020/1030, Twinhan DST,
+	  VVmer TV@SAT. Say Y when you want to support frontends 
+	  using this asic.
+
+	  This module requires the dvb-bt8xx driver and dvb bt878
+	  module.
+
 config DVB_STV0299
 	tristate "STV0299 based DVB-S frontend (QPSK)"
 	depends on DVB_CORE
@@ -145,3 +156,19 @@ config DVB_TDA1004X_FIRMWARE_FILE
             wget http://www.technotrend.de/new/215/TTweb_215a_budget_20_05_2003.zip
             unzip -j TTweb_215a_budget_20_05_2003.zip Software/Oem/PCI/App/ttlcdacc.dll
             mv ttlcdacc.dll /etc/dvb/tda1004x.bin
+
+config DVB_SP887X_FIRMWARE_FILE
+        string "Full pathname of sp887x firmware file"
+        depends on DVB_SP887X
+        default "/etc/dvb/sc_main.mc"
+        help
+          This driver needs a copy of the Avermedia firmware. The version tested
+	  is part of the Avermedia DVB-T 1.3.26.3 Application. This can be downloaded
+	  from the Avermedia web site.
+	  If the software is installed in Windows the file will be in the
+	  /Program Files/AVerTV DVB-T/ directory and is called sc_main.mc.
+	  Alternatively it can "extracted" from the install cab files but this will have
+	  to be done in windows as I don't know of a linux version of extract.exe.
+	  Copy this file to /etc/dvb/sc_main.mc. With this version of the file the first
+	  10 bytes are discarded and the next 0x4000 loaded. This may change in future
+	  versions.

drivers/media/dvb/frontends/Makefile

@@ -4,6 +4,7 @@
 
 EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/
 
+obj-$(CONFIG_DVB_TWINHAN_DST) += dst.o
 obj-$(CONFIG_DVB_STV0299) += stv0299.o
 obj-$(CONFIG_DVB_ALPS_TDLB7) += alps_tdlb7.o
 obj-$(CONFIG_DVB_ALPS_TDMB7) += alps_tdmb7.o

drivers/media/dvb/frontends/dst-bt878.h

+
+struct dst_gpio_enable {
+	u32	mask;
+	u32	enable;
+};
+
+struct dst_gpio_output {
+	u32	mask;
+	u32	highvals;
+};
+
+struct dst_gpio_read {
+	unsigned long value;
+};
+
+union dst_gpio_packet {
+	struct dst_gpio_enable enb;
+	struct dst_gpio_output outp;
+	struct dst_gpio_read rd;
+	int    psize;
+};
+
+#define DST_IG_ENABLE	0
+#define DST_IG_WRITE	1
+#define DST_IG_READ	2
+#define DST_IG_TS       3
+
+struct bt878 ;
+
+int
+bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp);
+
+struct bt878 *bt878_find_by_dvb_adap(struct dvb_adapter *adap);