[linux-dvb] Patch for Pinnacle PCTVSAT, Kernel 2.6.19-rc3

Uwe Bugla uwe.bugla at gmx.de
Fri Oct 27 17:34:13 CEST 2006


Hello!
The following patch for Kernel 2.6.19-rc3 contains three functions:
1. synchronizes bt8xx.txt to the current graphical Kernel compilation menu
2. make module dvb-pll.c deselectable as it is not necessary for Pinnacle PCTVSAT
3. get rid of static backend dependencies for dst.c and dst-ca.c (TwinHan Cards)
Effect of 2. and 3.: You save Memory!

I think that the current concept of one common backend for bt8xx cards is completely
obsolete. There should be a couple of card specific backends that can be selected and deseleted
as needed. The big effect would be saving RAM!

Cheers
Uwe
--- a/drivers/media/dvb/bt8xx/Makefile
+++ b/drivers/media/dvb/bt8xx/Makefile
@@ -1,3 +1,3 @@
-obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o dst.o dst_ca.o
+obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o
 
 EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video/bt8xx -Idrivers/media/dvb/frontends
--- a/drivers/media/dvb/bt8xx/Kconfig
+++ b/drivers/media/dvb/bt8xx/Kconfig
@@ -1,7 +1,7 @@
 config DVB_BT8XX
 	tristate "BT8xx based PCI cards"
 	depends on DVB_CORE && PCI && I2C && VIDEO_BT848
-	select DVB_PLL
+	select DVB_PLL if !DVB_FE_CUSTOMISE
 	select DVB_MT352 if !DVB_FE_CUSTOMISE
 	select DVB_SP887X if !DVB_FE_CUSTOMISE
 	select DVB_NXT6000 if !DVB_FE_CUSTOMISE
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -264,8 +264,11 @@
 	depends on DVB_CORE
 
 config DVB_PLL
-	tristate
+	tristate "PLL support for DVB tuners"
 	depends on DVB_CORE && I2C
+	default m if !DVB_FE_CUSTOMISE
+	help
+	  You can safely deselect this if you're only running a Pinnacle PCTV Sat DVB-S card.
 
 config DVB_TDA826X
 	tristate "Philips TDA826X silicon tuner"
--- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
@@ -403,9 +403,6 @@
 	.demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
 };
 
-static struct dst_config dst_config = {
-	.demod_address = 0x55,
-};
 
 static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
 {
@@ -568,34 +565,9 @@
 	.demod_init = digitv_alps_tded4_demod_init,
 };
 
-static int tdvs_tua6034_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
-{
-	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
-	return lg_h06xf_pll_set(fe, card->i2c_adapter, params);
-}
-
-static struct lgdt330x_config tdvs_tua6034_config = {
-	.demod_address    = 0x0e,
-	.demod_chip       = LGDT3303,
-	.serial_mpeg      = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
-};
-
-static void lgdt330x_reset(struct dvb_bt8xx_card *bt)
-{
-	/* Set pin 27 of the lgdt3303 chip high to reset the frontend */
-
-	/* Pulse the reset line */
-	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
-	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000000); /* Low  */
-	msleep(100);
-
-	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
-	msleep(100);
-}
 
 static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
 {
-	struct dst_state* state = NULL;
 
 	switch(type) {
 	case BTTV_BOARD_DVICO_DVBT_LITE:
@@ -612,14 +584,6 @@
 		}
 		break;
 
-	case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
-		lgdt330x_reset(card);
-		card->fe = dvb_attach(lgdt330x_attach, &tdvs_tua6034_config, card->i2c_adapter);
-		if (card->fe != NULL) {
-			card->fe->ops.tuner_ops.set_params = tdvs_tua6034_tuner_set_params;
-			dprintk ("dvb_bt8xx: lgdt330x detected\n");
-		}
-		break;
 
 	case BTTV_BOARD_NEBULA_DIGITV:
 		/*
@@ -662,29 +626,6 @@
 		}
 		break;
 
-	case BTTV_BOARD_TWINHAN_DST:
-		/*	DST is not a frontend driver !!!		*/
-		state = (struct dst_state *) kmalloc(sizeof (struct dst_state), GFP_KERNEL);
-		if (!state) {
-			printk("dvb_bt8xx: No memory\n");
-			break;
-		}
-		/*	Setup the Card					*/
-		state->config = &dst_config;
-		state->i2c = card->i2c_adapter;
-		state->bt = card->bt;
-		state->dst_ca = NULL;
-		/*	DST is not a frontend, attaching the ASIC	*/
-		if (dvb_attach(dst_attach, state, &card->dvb_adapter) == NULL) {
-			printk("%s: Could not find a Twinhan DST.\n", __FUNCTION__);
-			break;
-		}
-		/*	Attach other DST peripherals if any		*/
-		/*	Conditional Access device			*/
-		card->fe = &state->frontend;
-		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
-			dvb_attach(dst_ca_attach, state, &card->dvb_adapter);
-		break;
 
 	case BTTV_BOARD_PINNACLESAT:
 		card->fe = dvb_attach(cx24110_attach, &pctvsat_config, card->i2c_adapter);
@@ -852,23 +797,6 @@
 		/* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
 		break;
 
-	case BTTV_BOARD_TWINHAN_DST:
-		card->gpio_mode = 0x2204f2c;
-		card->op_sync_orin = BT878_RISC_SYNC_MASK;
-		card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
-				       BT878_APPERR | BT878_AFBUS;
-		/* 25,21,14,11,10,9,8,3,2 then
-		 * 0x33 = 5,4,1,0
-		 * A_SEL=SML, DA_MLB, DA_SBR,
-		 * DA_SDR=f, fifo trigger = 32 DWORDS
-		 * IOM = 0 == audio A/D
-		 * DPM = 0 == digital audio mode
-		 * == async data parallel port
-		 * then 0x33 (13 is set by start_capture)
-		 * DA_APP = async data parallel port,
-		 * ACAP_EN = 1,
-		 * RISC+FIFO ENABLE */
-		break;
 
 	case BTTV_BOARD_PC_HDTV:
 		card->gpio_mode = 0x0100EC7B;
--- a/Documentation/dvb/bt8xx.txt
+++ b/Documentation/dvb/bt8xx.txt
@@ -9,9 +9,15 @@
 Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge:
 
 Compiling kernel please enable:
-a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "BT848 Video For Linux"
+a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Enable Video for Linux API 1 (DEPRECATED)"
-b.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
- => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards"
+b.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Video Capture Adapters" => "BT848 Video For Linux"
+c.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
+ => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards"
+
+Note: If you know the frontend driver that your specific card needs furthermore please enable:
+d.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
+ => "DVB for Linux" "DVB Core Support" "Customize DVB Frontends" => "Customize the frontend modules to build"
+ Then you can save memory by deselecting every frontend module your specific card does not need.
 
 2) Loading Modules
 ==================

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