bttv-cards.c

microwindows移植到S3C44B0的源码

		BUS_HIGH(btv->mbox_clk);
		udelay(5);
		dprintk("%c",(BUS_IN(btv->mbox_most) == 0)?'T':'-');
		BUS_LOW(btv->mbox_clk);
		value <<= 1;
		value |= (BUS_IN(btv->mbox_data) == 0)?0:1;  /* MSB first */
		dprintk("%c", (BUS_IN(btv->mbox_most) == 0)?'S':'M');
	}
	dprintk("\nbttv%d: tea5757: read 0x%X\n", btv->nr, value);
	return value;
}

static int tea5757_write(struct bttv *btv, int value)
{
	int i;
	int reg = value;
	
	btaor(btv->mbox_clk | btv->mbox_we | btv->mbox_data,
	      ~btv->mbox_mask, BT848_GPIO_OUT_EN);
	if (bttv_gpio)
		bttv_gpio_tracking(btv,"tea5757 write");
	dprintk("bttv%d: tea5757: write 0x%X\n", btv->nr, value);
	BUS_LOW(btv->mbox_clk);
	BUS_HIGH(btv->mbox_we);
	for(i = 0; i < 25; i++)
	{
		if (reg & 0x1000000)
			BUS_HIGH(btv->mbox_data);
		else
			BUS_LOW(btv->mbox_data);
		reg <<= 1;
		BUS_HIGH(btv->mbox_clk);
		udelay(10);
		BUS_LOW(btv->mbox_clk);
		udelay(10);
	}
	BUS_LOW(btv->mbox_we);  /* unmute !!! */
	return 0;
}

void tea5757_set_freq(struct bttv *btv, unsigned short freq)
{
	tea5757_write(btv, 5 * freq + 0x358); /* add 10.7MHz (see docs) */
	if (bttv_debug)
		tea5757_read(btv);
}


/* ----------------------------------------------------------------------- */
/* winview                                                                 */

void winview_audio(struct bttv *btv, struct video_audio *v, int set)
{
	/* PT2254A programming Jon Tombs, [e-mail] */
	int bits_out, loops, vol, data;

	if (!set) {
		/* Fixed by Leandro Lucarella <[e-mail] (07/31/01) */
		v->flags |= VIDEO_AUDIO_VOLUME;
		return;
	}
	
	/* 32 levels logarithmic */
	vol = 32 - ((v->volume>>11));
	/* units */
	bits_out = (PT2254_DBS_IN_2>>(vol%5));
	/* tens */
	bits_out |= (PT2254_DBS_IN_10>>(vol/5));
	bits_out |= PT2254_L_CHANNEL | PT2254_R_CHANNEL;
	data = btread(BT848_GPIO_DATA);
	data &= ~(WINVIEW_PT2254_CLK| WINVIEW_PT2254_DATA|
		  WINVIEW_PT2254_STROBE);
	for (loops = 17; loops >= 0 ; loops--) {
		if (bits_out & (1<<loops))
			data |=  WINVIEW_PT2254_DATA;
		else
			data &= ~WINVIEW_PT2254_DATA;
		btwrite(data, BT848_GPIO_DATA);
		udelay(5);
		data |= WINVIEW_PT2254_CLK;
		btwrite(data, BT848_GPIO_DATA);
		udelay(5);
		data &= ~WINVIEW_PT2254_CLK;
		btwrite(data, BT848_GPIO_DATA);
	}
	data |=  WINVIEW_PT2254_STROBE;
	data &= ~WINVIEW_PT2254_DATA;
	btwrite(data, BT848_GPIO_DATA);
	udelay(10);                     
	data &= ~WINVIEW_PT2254_STROBE;
	btwrite(data, BT848_GPIO_DATA);
}

/* ----------------------------------------------------------------------- */
/* mono/stereo control for various cards (which don't use i2c chips but    */
/* connect something to the GPIO pins                                      */

static void
gvbctv3pci_audio(struct bttv *btv, struct video_audio *v, int set)
{
	unsigned int con = 0;

	if (set) {
		btor(0x300, BT848_GPIO_OUT_EN);
		if (v->mode & VIDEO_SOUND_LANG1)
			con = 0x000;
		if (v->mode & VIDEO_SOUND_LANG2)
			con = 0x300;
		if (v->mode & VIDEO_SOUND_STEREO)
			con = 0x200;
//		if (v->mode & VIDEO_SOUND_MONO)
//			con = 0x100;
		btaor(con, ~0x300, BT848_GPIO_DATA);
	} else {
		v->mode = VIDEO_SOUND_STEREO |
			  VIDEO_SOUND_LANG1  | VIDEO_SOUND_LANG2;
	}
}

/*
 * Mario Medina Nussbaum <[e-mail]>
 *  I discover that on BT848_GPIO_DATA address a byte 0xcce enable stereo,
 *  0xdde enables mono and 0xccd enables sap
 *
 * Petr Vandrovec <[e-mail]>
 *  P.S.: At least mask in line above is wrong - GPIO pins 3,2 select
 *  input/output sound connection, so both must be set for output mode.
 *
 * Looks like it's needed only for the "tvphone", the "tvphone 98"
 * handles this with a tda9840
 *
 */
static void
avermedia_tvphone_audio(struct bttv *btv, struct video_audio *v, int set)
{
	int val = 0;

	if (set) {
		if (v->mode & VIDEO_SOUND_LANG1)   /* SAP */
			val = 0x02;
		if (v->mode & VIDEO_SOUND_STEREO)
			val = 0x01;
		if (val) {
			btaor(val, ~0x03, BT848_GPIO_DATA);
			if (bttv_gpio)
				bttv_gpio_tracking(btv,"avermedia");
		}
	} else {
		v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			VIDEO_SOUND_LANG1;
		return;
	}
}

/* Lifetec 9415 handling */
static void
lt9415_audio(struct bttv *btv, struct video_audio *v, int set)
{
        int val = 0;

        if (btread(BT848_GPIO_DATA) & 0x4000) {
		v->mode = VIDEO_SOUND_MONO;
		return;
	}

        if (set) {
                if (v->mode & VIDEO_SOUND_LANG2)  /* A2 SAP */
                        val = 0x0080;
		if (v->mode & VIDEO_SOUND_STEREO) /* A2 stereo */
                        val = 0x0880;
                if ((v->mode & VIDEO_SOUND_LANG1) ||
		    (v->mode & VIDEO_SOUND_MONO))
			val = 0;
                btaor(val, ~0x0880, BT848_GPIO_DATA);
                if (bttv_gpio)
                        bttv_gpio_tracking(btv,"lt9415");
        } else {
		/* autodetect doesn't work with this card :-( */
                v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
                return;
        }
}


static void
terratv_audio(struct bttv *btv, struct video_audio *v, int set)
{
	unsigned int con = 0;

	if (set) {
		btor(0x180000, BT848_GPIO_OUT_EN);
		if (v->mode & VIDEO_SOUND_LANG2)
			con = 0x080000;
		if (v->mode & VIDEO_SOUND_STEREO)
			con = 0x180000;
		btaor(con, ~0x180000, BT848_GPIO_DATA);
		if (bttv_gpio)
			bttv_gpio_tracking(btv,"terratv");
	} else {
		v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
	}
}

static void
winfast2000_audio(struct bttv *btv, struct video_audio *v, int set)
{
	unsigned long val = 0;

	if (set) {
		/*btor (0xc32000, BT848_GPIO_OUT_EN);*/
		if (v->mode & VIDEO_SOUND_MONO)		/* Mono */
			val = 0x420000;
		if (v->mode & VIDEO_SOUND_LANG1)	/* Mono */
			val = 0x420000;
		if (v->mode & VIDEO_SOUND_LANG2)	/* SAP */
			val = 0x410000;
		if (v->mode & VIDEO_SOUND_STEREO)	/* Stereo */
			val = 0x020000;
		if (val) {
			btaor(val, ~0x430000, BT848_GPIO_DATA);
			if (bttv_gpio)
				bttv_gpio_tracking(btv,"winfast2000");
		}
	} else {
		v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			  VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
	}
}

/*
 * Dariusz Kowalewski <[e-mail]>
 * sound control for Prolink PV-BT878P+9B (PixelView PlayTV Pro FM+NICAM
 * revision 9B has on-board TDA9874A sound decoder).
 */
static void
pvbt878p9b_audio(struct bttv *btv, struct video_audio *v, int set)
{
	unsigned int val = 0;

#if BTTV_VERSION_CODE > KERNEL_VERSION(0,8,0)
	if (btv->radio_user)
		return;
#else
	if (btv->radio)
		return;
#endif

	if (set) {
		if (v->mode & VIDEO_SOUND_MONO)	{
			val = 0x01;
		}
		if ((v->mode & (VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2))
		    || (v->mode & VIDEO_SOUND_STEREO)) {
			val = 0x02;
		}
		if (val) {
			btaor(val, ~0x03, BT848_GPIO_DATA);
			if (bttv_gpio)
				bttv_gpio_tracking(btv,"pvbt878p9b");
		}
	} else {
		v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
	}
}

/*
 * Dariusz Kowalewski <[e-mail]>
 * sound control for FlyVideo 2000S (with tda9874 decoder) 
 * based on pvbt878p9b_audio() - this is not tested, please fix!!!
 */
static void
fv2000s_audio(struct bttv *btv, struct video_audio *v, int set)
{
	unsigned int val = 0xffff;

#if BTTV_VERSION_CODE > KERNEL_VERSION(0,8,0)
	if (btv->radio_user)
		return;
#else
	if (btv->radio)
		return;
#endif
	if (set) {
		if (v->mode & VIDEO_SOUND_MONO)	{
			val = 0x0000;
		}
		if ((v->mode & (VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2))
		    || (v->mode & VIDEO_SOUND_STEREO)) {
			val = 0x1080; //-dk-???: 0x0880, 0x0080, 0x1800 ...
		}
		if (val != 0xffff) {
			btaor(val, ~0x1800, BT848_GPIO_DATA);
			if (bttv_gpio)
				bttv_gpio_tracking(btv,"fv2000s");
		}
	} else {
		v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
			VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
	}
}

/*
 * sound control for Canopus WinDVR PCI
 * Masaki Suzuki <[e-mail]>
 */
static void
windvr_audio(struct bttv *btv, struct video_audio *v, int set)
{
        unsigned long val = 0;

        if (set) {
                if (v->mode & VIDEO_SOUND_MONO)
                        val = 0x040000;
                if (v->mode & VIDEO_SOUND_LANG1)
                        val = 0;
                if (v->mode & VIDEO_SOUND_LANG2)
                        val = 0x100000;
                if (v->mode & VIDEO_SOUND_STEREO)
                        val = 0;
                if (val) {
                        btaor(val, ~0x140000, BT848_GPIO_DATA);
                        if (bttv_gpio)
                                bttv_gpio_tracking(btv,"windvr");
                }
        } else {
                v->mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
                          VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
        }
}

/* RemoteVision MX (rv605) muxsel helper [Miguel Freitas]
 *
 * This is needed because rv605 don't use a normal multiplex, but a crosspoint
 * switch instead (CD22M3494E). This IC can have multiple active connections
 * between Xn (input) and Yn (output) pins. We need to clear any existing
 * connection prior to establish a new one, pulsing the STROBE pin.
 *
 * The board hardwire Y0 (xpoint) to MUX1 and MUXOUT to Yin.
 * GPIO pins are wired as:
 *  GPIO[0:3] - AX[0:3] (xpoint) - P1[0:3] (microcontroler)
 *  GPIO[4:6] - AY[0:2] (xpoint) - P1[4:6] (microcontroler)
 *  GPIO[7]   - DATA (xpoint)    - P1[7] (microcontroler)
 *  GPIO[8]   -                  - P3[5] (microcontroler)
 *  GPIO[9]   - RESET (xpoint)   - P3[6] (microcontroler)
 *  GPIO[10]  - STROBE (xpoint)  - P3[7] (microcontroler)
 *  GPINTR    -                  - P3[4] (microcontroler)
 *
 * The microcontroler is a 80C32 like. It should be possible to change xpoint
 * configuration either directly (as we are doing) or using the microcontroler
 * which is also wired to I2C interface. I have no further info on the
 * microcontroler features, one would need to disassembly the firmware.
 * note: the vendor refused to give any information on this product, all
 *       that stuff was found using a multimeter! :)
 */
static void rv605_muxsel(struct bttv *btv, unsigned int input)
{
	/* reset all conections */
	btaor(0x200,~0x200, BT848_GPIO_DATA);
	mdelay(1);
	btaor(0x000,~0x200, BT848_GPIO_DATA);
	mdelay(1);

	/* create a new conection */
	btaor(0x080,~0x480, BT848_GPIO_DATA);
	btaor(0x480,~0x480, BT848_GPIO_DATA);
	mdelay(1);
	btaor(0x080,~0x480, BT848_GPIO_DATA);
	mdelay(1);
}


/* ----------------------------------------------------------------------- */
/* motherboard chipset specific stuff                                      */

void __devinit bttv_check_chipset(void)
{
	int pcipci_fail = 0;
	struct pci_dev *dev = NULL;

	/* for 2.4.x we'll use the pci quirks (drivers/pci/quirks.c) */
	if (pci_pci_problems & PCIPCI_FAIL)
		pcipci_fail = 1;
	if (pci_pci_problems & (PCIPCI_TRITON|PCIPCI_NATOMA|PCIPCI_VIAETBF))
		triton1 = 1;
	if (pci_pci_problems & PCIPCI_VSFX)
		vsfx = 1;

	/* print which chipset we have */
	while ((dev = pci_find_class(PCI_CLASS_BRIDGE_HOST << 8,dev)))
		printk(KERN_INFO "bttv: Host bridge is %s\n",dev->name);

	/* print warnings about any quirks found */
	if (triton1)
		printk(KERN_INFO "bttv: Host bridge needs ETBF enabled.\n");
	if (vsfx)
		printk(KERN_INFO "bttv: Host bridge needs VSFX enabled.\n");

	if (pcipci_fail) {
		printk(KERN_WARNING "bttv: BT848 and your chipset may not work together.\n");
		if (-1 == no_overlay) {
			printk(KERN_WARNING "bttv: going to disable overlay.\n");
			no_overlay = 1;
		}
	}

	while ((dev = pci_find_device(PCI_VENDOR_ID_INTEL,
				      PCI_DEVICE_ID_INTEL_82441, dev))) {
                unsigned char b;
                pci_read_config_byte(dev, 0x53, &b);
		if (bttv_debug)
			printk(KERN_INFO "bttv: Host bridge: 82441FX Natoma, "
			       "bufcon=0x%02x\n",b);
	}

}

int __devinit bttv_handle_chipset(struct bttv *btv)
{
 	unsigned char command;

	if (!triton1 && !vsfx)
		return 0;

	if (bttv_verbose) {
		if (triton1)
			printk("bttv%d: enabling ETBF (430FX/VP3 compatibilty)\n",btv->nr);
		if (vsfx && btv->id >= 878)
			printk("bttv%d: enabling VSFX\n",btv->nr);
	}

	if (btv->id < 878) {
		/* bt848 (mis)uses a bit in the irq mask for etbf */
		if (triton1)
			btv->triton1 = BT848_INT_ETBF;
	} else {
		/* bt878 has a bit in the pci config space for it */
                pci_read_config_byte(btv->dev, BT878_DEVCTRL, &command);
		if (triton1)
			command |= BT878_EN_TBFX;
		if (vsfx)
			command |= BT878_EN_VSFX;
                pci_write_config_byte(btv->dev, BT878_DEVCTRL, command);
        }
	return 0;
}


/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */