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freebsd-skq/sys/dev/bktr/bktr_core.c
Bruce Evans e4ba6a82b0 Removed unused #includes.
1997-09-02 20:06:59 +00:00

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/* BT848 1.3-ALPHA Driver for Brooktree's Bt848 based cards.
The Brooktree BT848 Driver driver is based upon Mark Tinguely and
Jim Lowe's driver for the Matrox Meteor PCI card . The
Philips SAA 7116 and SAA 7196 are very different chipsets than
the BT848. For starters, the BT848 is a one chipset solution and
it incorporates a RISC engine to control the DMA transfers --
that is it the actual dma process is control by a program which
resides in the hosts memory also the register definitions between
the Philips chipsets and the Bt848 are very different.
The original copyright notice by Mark and Jim is included mostly
to honor their fantastic work in the Matrox Meteor driver!
Enjoy,
Amancio
*/
/*
* 1. Redistributions of source code must retain the
* Copyright (c) 1997 Amancio Hasty
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Amancio Hasty
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 1. Redistributions of source code must retain the
* Copyright (c) 1995 Mark Tinguely and Jim Lowe
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Tinguely and Jim Lowe
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* Change History:
1.0 1/24/97 First Alpha release
1.1 2/20/97 Added video ioctl so we can do PCI To PCI
data transfers. This is for capturing data
directly to a vga frame buffer which has
a linear frame buffer. Minor code clean-up.
1.3 2/23/97 Fixed system lock-up reported by
Randall Hopper <rhh@ct.picker.com>. This
problem seems somehow to be exhibited only
in his system. I changed the setting of
INT_MASK for CAP_CONTINUOUS to be exactly
the same as CAP_SINGLE apparently setting
bit 23 cleared the system lock up.
version 1.1 of the driver has been reported
to work with STB's WinTv, Hauppage's Wincast/Tv
and last but not least with the Intel Smart
Video Recorder.
1.4 3/9/97 fsmp@freefall.org
Merged code to support tuners on STB and WinCast
cards.
Modifications to the contrast and chroma ioctls.
Textual cleanup.
1.5 3/15/97 fsmp@freefall.org
new bt848 specific versions of hue/bright/
contrast/satu/satv.
Amancio's patch to fix "screen freeze" problem.
1.6 3/19/97 fsmp@freefall.org
new table-driven frequency lookup.
removed disable_intr()/enable_intr() calls from i2c.
misc. cleanup.
1.7 3/19/97 fsmp@freefall.org
added audio support submitted by:
Michael Petry <petry@netwolf.NetMasters.com>
1.8 3/20/97 fsmp@freefall.org
extended audio support.
card auto-detection.
major cleanup, order of routines, declarations, etc.
1.9 3/22/97 fsmp@freefall.org
merged in Amancio's minor unit for tuner control
mods.
misc. cleanup, especially in the _intr routine.
made AUDIO_SUPPORT mainline code.
1.10 3/23/97 fsmp@freefall.org
added polled hardware i2c routines,
removed all existing software i2c routines.
created software i2cProbe() routine.
Randall Hopper's fixes of BT848_GHUE & BT848_GBRIG.
eeprom support.
1.11 3/24/97 fsmp@freefall.org
Louis Mamakos's new bt848 struct.
1.12 3/25/97 fsmp@freefall.org
japanese freq table from Naohiro Shichijo.
new table structs for tuner lookups.
major scrub for "magic numbers".
1.13 3/28/97 fsmp@freefall.org
1st PAL support.
MAGIC_[1-4] demarcates magic #s needing PAL work.
AFC code submitted by Richard Tobin
<richard@cogsci.ed.ac.uk>.
1.14 3/29/97 richard@cogsci.ed.ac.uk
PAL support: magic numbers moved into
format_params structure.
Revised AFC interface.
fixed DMA_PROG_ALLOC size misdefinition.
1.15 4/18/97 John-Mark Gurney <gurney_j@resnet.uoregon.edu>
Added [SR]RGBMASKs ioctl for byte swapping.
1.16 4/20/97 Randall Hopper <rhh@ct.picker.com>
Generalized RGBMASK ioctls for general pixel
format setting [SG]ACTPIXFMT, and added query API
to return driver-supported pix fmts GSUPPIXFMT.
1.17 4/21/97 hasty@rah.star-gate.com
Clipping support added.
1.18 4/23/97 Clean up after failed CAP_SINGLEs where bt
interrupt isn't delivered, and fixed fixing
CAP_SINGLEs that for ODD_ONLY fields.
*/
#include "bktr.h"
#if NBKTR > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/signalvar.h>
#include <sys/mman.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif /* DEVFS */
#include <machine/clock.h>
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include "pci.h"
#if NPCI > 0
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#endif
#include <machine/ioctl_meteor.h>
#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
#include <pci/brktree_reg.h>
typedef u_char bool_t;
#define METPRI (PZERO+8)|PCATCH
static void bktr_intr __P((void *arg));
/* FIXME: Dead code? bt_enable_cnt is always 0; effectively */
/* a do-nothing when ORed in with SOL/EOL RISC instructions. */
static bt_enable_cnt;
/*
* memory allocated for DMA programs
*/
#define DMA_PROG_ALLOC (8 * PAGE_SIZE)
/* When to split a dma transfer , the bt848 has timing as well as
dma transfer size limitations so that we have to split dma
transfers into two dma requests
*/
#define DMA_BT848_SPLIT 319*2
/*
* Allocate enough memory for:
* 768x576 RGB 16 or YUV (16 storage bits/pixel) = 884736 = 216 pages
*
* You may override this using the options "METEOR_ALLOC_PAGES=value" in your
* kernel configuration file.
*/
#ifndef BROOKTREE_ALLOC_PAGES
#define BROOKTREE_ALLOC_PAGES 217*4
#endif
#define BROOKTREE_ALLOC (BROOKTREE_ALLOC_PAGES * PAGE_SIZE)
static bktr_reg_t brooktree[ NBKTR ];
#define BROOKTRE_NUM(mtr) ((bktr - &brooktree[0])/sizeof(bktr_reg_t))
#define BKTRPRI (PZERO+8)|PCATCH
static char* bktr_probe( pcici_t tag, pcidi_t type );
static void bktr_attach( pcici_t tag, int unit );
static u_long bktr_count;
static struct pci_device bktr_device = {
"bktr",
bktr_probe,
bktr_attach,
&bktr_count
};
DATA_SET (pcidevice_set, bktr_device);
static d_open_t bktr_open;
static d_close_t bktr_close;
static d_read_t bktr_read;
static d_write_t bktr_write;
static d_ioctl_t bktr_ioctl;
static d_mmap_t bktr_mmap;
#define CDEV_MAJOR 79
static struct cdevsw bktr_cdevsw =
{
bktr_open, bktr_close, bktr_read, bktr_write,
bktr_ioctl, nostop, nullreset, nodevtotty,
seltrue, bktr_mmap, NULL, "bktr",
NULL, -1
};
/*
* This is for start-up convenience only, NOT mandatory.
*/
#if !defined( DEFAULT_CHNLSET )
#define DEFAULT_CHNLSET CHNLSET_NABCST
#endif
/*
* Parameters describing size of transmitted image.
*/
static struct format_params format_params[] = {
#define FORMAT_PARAMS_NTSC525 0
{ 525, 22, 480, 910, 135, 754, (640.0 / 780.0) },
#define FORMAT_PARAMS_PAL625 1
{ 625, 32, 576, 1135, 186, 922, (768.0 / 944.0) }
};
/*
* Table of supported Pixel Formats
*/
static struct meteor_pixfmt_internal {
struct meteor_pixfmt public;
u_int color_fmt;
} pixfmt_table[] = {
{ { 0, METEOR_PIXTYPE_RGB, 2, { 0x7c00, 0x03e0, 0x001f }, 0,0 }, 0x33 },
{ { 0, METEOR_PIXTYPE_RGB, 2, { 0x7c00, 0x03e0, 0x001f }, 1,0 }, 0x33 },
{ { 0, METEOR_PIXTYPE_RGB, 2, { 0xf800, 0x07e0, 0x001f }, 0,0 }, 0x22 },
{ { 0, METEOR_PIXTYPE_RGB, 2, { 0xf800, 0x07e0, 0x001f }, 1,0 }, 0x22 },
{ { 0, METEOR_PIXTYPE_RGB, 3, { 0xff0000,0x00ff00,0x0000ff }, 1,0 }, 0x11 },
{ { 0, METEOR_PIXTYPE_RGB, 4, { 0xff0000,0x00ff00,0x0000ff }, 0,0 }, 0x00 },
{ { 0, METEOR_PIXTYPE_RGB, 4, { 0xff0000,0x00ff00,0x0000ff }, 0,1 }, 0x00 },
{ { 0, METEOR_PIXTYPE_RGB, 4, { 0xff0000,0x00ff00,0x0000ff }, 1,0 }, 0x00 },
{ { 0, METEOR_PIXTYPE_RGB, 4, { 0xff0000,0x00ff00,0x0000ff }, 1,1 }, 0x00 },
};
#define PIXFMT_TABLE_SIZE ( sizeof(pixfmt_table) / sizeof(pixfmt_table[0]) )
/*
* Table of Meteor-supported Pixel Formats (for SETGEO compatibility)
*/
/* FIXME: Also add YUV_422 and YUV_PACKED as well */
static struct {
u_long meteor_format;
struct meteor_pixfmt public;
} meteor_pixfmt_table[] = {
/* FIXME: Should byte swap flag be on for this one; negative in drvr? */
{ METEOR_GEO_RGB16,
{ 0, METEOR_PIXTYPE_RGB, 2, { 0x7c00, 0x03e0, 0x001f }, 0, 0 }
},
{ METEOR_GEO_RGB24,
{ 0, METEOR_PIXTYPE_RGB, 4, { 0xff0000, 0x00ff00, 0x0000ff }, 0, 0 }
},
};
#define METEOR_PIXFMT_TABLE_SIZE ( sizeof(meteor_pixfmt_table) / \
sizeof(meteor_pixfmt_table[0]) )
#define BSWAP (BT848_COLOR_CTL_BSWAP_ODD | BT848_COLOR_CTL_BSWAP_EVEN)
#define WSWAP (BT848_COLOR_CTL_WSWAP_ODD | BT848_COLOR_CTL_WSWAP_EVEN)
/* experimental code for Automatic Frequency Control */
#define TUNER_AFC
#define TEST_TUNER_AFC_NOT
#if defined( TUNER_AFC )
#define AFC_DELAY 10000 /* 10 millisend delay */
#define AFC_BITS 0x07
#define AFC_FREQ_MINUS_125 0x00
#define AFC_FREQ_MINUS_62 0x01
#define AFC_FREQ_CENTERED 0x02
#define AFC_FREQ_PLUS_62 0x03
#define AFC_FREQ_PLUS_125 0x04
#define AFC_MAX_STEP (5 * FREQFACTOR) /* no more than 5 MHz */
#endif /* TUNER_AFC */
/*
* i2c things:
*/
/* PLL on a Temic NTSC tuner: 4032FY5 */
#define TEMIC_NTSC_WADDR 0xc0
#define TEMIC_NTSC_RADDR 0xc1
/* PLL on a Temic PAL I tuner: 4062FY5 */
#define TEMIC_PALI_WADDR 0xc2
#define TEMIC_PALI_RADDR 0xc3
/* PLL on a Philips tuner */
#define PHILIPS_NTSC_WADDR 0xc6
#define PHILIPS_NTSC_RADDR 0xc7
/* guaranteed address for any TSA5522/3 (PLL on all(?) tuners) */
#define TSA552x_WADDR 0xc2
#define TSA552x_RADDR 0xc3
#define TSA552x_CB_MSB (0x80)
#define TSA552x_CB_CP (1<<6)
#define TSA552x_CB_T2 (1<<5)
#define TSA552x_CB_T1 (1<<4)
#define TSA552x_CB_T0 (1<<3)
#define TSA552x_CB_RSA (1<<2)
#define TSA552x_CB_RSB (1<<1)
#define TSA552x_CB_OS (1<<0)
/* address of BTSC/SAP decoder chip */
#define TDA9850_WADDR 0xb6
#define TDA9850_RADDR 0xb7
/* EEProm (128 * 8) on an STB card */
#define X24C01_WADDR 0xae
#define X24C01_RADDR 0xaf
/* EEProm (256 * 8) on a Hauppauge card */
#define PFC8582_WADDR 0xa0
#define PFC8582_RADDR 0xa1
/* registers in the BTSC/dbx chip */
#define CON1ADDR 0x04
#define CON2ADDR 0x05
#define CON3ADDR 0x06
#define CON4ADDR 0x07
/* raise the charge pump voltage for fast tuning */
#define TSA552x_FCONTROL (TSA552x_CB_MSB | \
TSA552x_CB_CP | \
TSA552x_CB_T0 | \
TSA552x_CB_RSA | \
TSA552x_CB_RSB)
/* lower the charge pump voltage for better residual oscillator FM */
#define TSA552x_SCONTROL (TSA552x_CB_MSB | \
TSA552x_CB_T0 | \
TSA552x_CB_RSA | \
TSA552x_CB_RSB)
/* sync detect threshold */
#if 1
#define SYNC_LEVEL (BT848_ADC_RESERVED | \
BT848_ADC_CRUSH) /* threshold ~125 mV */
#else
#define SYNC_LEVEL (BT848_ADC_RESERVED | \
BT848_ADC_CRUSH | \
BT848_ADC_SYNC_T) /* threshold ~75 mV */
#endif
/* the GPIO bits that control the audio MUXes */
#define GPIO_AUDIOMUX_BITS 0x07
/* debug utility for holding previous INT_STAT contents */
#define STATUS_SUM
static u_long status_sum = 0;
/*
* defines to make certain bit-fiddles understandable
*/
#define FIFO_ENABLED BT848_DMA_CTL_FIFO_EN
#define RISC_ENABLED BT848_DMA_CTL_RISC_EN
#define FIFO_RISC_ENABLED (BT848_DMA_CTL_FIFO_EN | BT848_DMA_CTL_RISC_EN)
#define FIFO_RISC_DISABLED 0
#define ALL_INTS_DISABLED 0
#define ALL_INTS_CLEARED 0xffffffff
#define CAPTURE_OFF 0
#define BIT_SEVEN_HIGH (1<<7)
#define BIT_EIGHT_HIGH (1<<8)
#define I2C_BITS (BT848_INT_RACK | BT848_INT_I2CDONE)
/*
* misc. support routines.
*/
static const struct CARDTYPE cards[];
static const struct TUNER tuners[];
static int signCard( bktr_ptr_t bktr, int offset,
int count, u_char* sig );
static void probeCard( bktr_ptr_t bktr, int verbose );
static vm_offset_t get_bktr_mem( int unit, unsigned size );
static int oformat_meteor_to_bt( u_long format );
static u_int pixfmt_swap_flags( int pixfmt );
/*
* bt848 RISC programming routines.
*/
static int dump_bt848( bt848_ptr_t bt848 );
static void yuvpack_prog( bktr_ptr_t bktr, char i_flag, int cols,
int rows, int interlace );
static void yuv422_prog( bktr_ptr_t bktr, char i_flag, int cols,
int rows, int interlace );
static void rgb_prog( bktr_ptr_t bktr, char i_flag, int cols,
int rows, int interlace );
static void build_dma_prog( bktr_ptr_t bktr, char i_flag );
static bool_t getline(bktr_reg_t *, int);
static bool_t notclipped(bktr_reg_t * , int , int);
static bool_t split(bktr_reg_t *, volatile u_long **, int, u_long, int,
volatile u_char ** , int );
/*
* video & video capture specific routines.
*/
static int video_open( bktr_ptr_t bktr );
static int video_close( bktr_ptr_t bktr );
static int video_ioctl( bktr_ptr_t bktr, int unit,
int cmd, caddr_t arg, struct proc* pr );
static void start_capture( bktr_ptr_t bktr, unsigned type );
static void set_fps( bktr_ptr_t bktr, u_short fps );
/*
* tuner specific functions.
*/
static int tuner_open( bktr_ptr_t bktr );
static int tuner_close( bktr_ptr_t bktr );
static int tuner_ioctl( bktr_ptr_t bktr, int unit,
int cmd, caddr_t arg, struct proc* pr );
static int tv_channel( bktr_ptr_t bktr, int channel );
static int tv_freq( bktr_ptr_t bktr, int frequency );
#if defined( TUNER_AFC )
static int do_afc( bktr_ptr_t bktr, int addr, int frequency );
#endif /* TUNER_AFC */
/*
* audio specific functions.
*/
static int set_audio( bktr_ptr_t bktr, int mode );
static void temp_mute( bktr_ptr_t bktr, int flag );
static int set_BTSC( bktr_ptr_t bktr, int control );
/*
* ioctls common to both video & tuner.
*/
static int common_ioctl( bktr_ptr_t bktr, bt848_ptr_t bt848,
int cmd, caddr_t arg );
/*
* i2c primitives
*/
static int i2cWrite( bktr_ptr_t bktr, int addr, int byte1, int byte2 );
static int i2cRead( bktr_ptr_t bktr, int addr );
static int writeEEProm( bktr_ptr_t bktr, int offset, int count,
u_char* data );
static int readEEProm( bktr_ptr_t bktr, int offset, int count,
u_char* data );
/*
* the boot time probe routine.
*/
static char*
bktr_probe( pcici_t tag, pcidi_t type )
{
switch (type) {
case BROOKTREE_848_ID:
return("BrookTree 848");
};
return ((char *)0);
}
/*
* what should we do here?
*/
static void
bktr_init ( bktr_ptr_t bktr )
{
return;
}
/*
* the attach routine.
*/
static void
bktr_attach( pcici_t tag, int unit )
{
bktr_ptr_t bktr;
bt848_ptr_t bt848;
#ifdef BROOKTREE_IRQ
u_long old_irq, new_irq;
#endif
u_char *test;
vm_offset_t buf;
u_long latency;
u_long fun;
bt_enable_cnt = 0;
bktr = &brooktree[unit];
if (unit >= NBKTR) {
printf("brooktree%d: attach: only %d units configured.\n",
unit, NBKTR);
printf("brooktree%d: attach: invalid unit number.\n", unit);
return;
}
bktr->tag = tag;
pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &bktr->base,
&bktr->phys_base );
fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG);
#ifdef BROOKTREE_IRQ /* from the configuration file */
old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ);
new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
printf("bktr%d: attach: irq changed from %d to %d\n",
unit, (old_irq & 0xff), (new_irq & 0xff));
#endif
/* setup the interrupt handling routine */
pci_map_int(tag, bktr_intr, (void*) bktr, &net_imask);
/*
* PCI latency timer. 32 is a good value for 4 bus mastering slots, if
* you have more than four, then 16 would probably be a better value.
*/
#ifndef BROOKTREE_DEF_LATENCY_VALUE
#define BROOKTREE_DEF_LATENCY_VALUE 10
#endif
latency = pci_conf_read(tag, PCI_LATENCY_TIMER);
latency = (latency >> 8) & 0xff;
if ( bootverbose ) {
if (latency)
printf("brooktree%d: PCI bus latency is", unit);
else
printf("brooktree%d: PCI bus latency was 0 changing to",
unit);
}
if ( !latency ) {
latency = BROOKTREE_DEF_LATENCY_VALUE;
pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8);
}
if ( bootverbose ) {
printf(" %d.\n", latency);
}
/* bktr_init(bktr); set up the bt848 */
/* allocate space for dma program */
bktr->dma_prog = get_bktr_mem(unit, DMA_PROG_ALLOC);
bktr->odd_dma_prog = get_bktr_mem(unit, DMA_PROG_ALLOC);
/* allocate space for pixel buffer */
if ( BROOKTREE_ALLOC )
buf = get_bktr_mem(unit, BROOKTREE_ALLOC);
else
buf = 0;
if ( bootverbose ) {
printf("bktr%d: buffer size %d, addr 0x%x\n",
unit, BROOKTREE_ALLOC, vtophys(buf));
}
bktr->bigbuf = buf;
bktr->alloc_pages = BROOKTREE_ALLOC_PAGES;
if ( buf != 0 ) {
bzero((caddr_t) buf, BROOKTREE_ALLOC);
buf = vtophys(buf);
#ifdef amancio /* 640x480 RGB 16 */
amancio : setup dma risc program
bktr->base->dma1e = buf;
bktr->base->dma1o = buf + 0x500;
bktr->base->dma_end_e =
bktr->base->dma_end_o = buf + METEOR_ALLOC;
end of setup up dma risc program
/* 1 frame of 640x480 RGB 16 */
bktr->flags |= METEOR_INITALIZED | METEOR_AUTOMODE | METEOR_DEV0 |
METEOR_RGB16;
#endif /* amancio */
bktr->flags = METEOR_INITALIZED | METEOR_AUTOMODE |
METEOR_DEV0 | METEOR_RGB16;
bktr->dma_prog_loaded = FALSE;
bktr->cols = 640;
bktr->rows = 480;
bktr->frames = 1; /* one frame */
bktr->format = METEOR_GEO_RGB16;
bktr->pixfmt = oformat_meteor_to_bt( bktr->format );
bktr->pixfmt_compat = TRUE;
bt848 = bktr->base;
bt848->int_mask = ALL_INTS_DISABLED;
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
}
/* defaults for the tuner section of the card */
bktr->tflags = TUNER_INITALIZED;
bktr->tuner.frequency = 0;
bktr->tuner.channel = 0;
bktr->tuner.chnlset = DEFAULT_CHNLSET;
bktr->audio_mux_select = 0;
bktr->audio_mute_state = FALSE;
probeCard( bktr, TRUE );
#ifdef DEVFS
bktr->devfs_token = devfs_add_devswf(&bktr_cdevsw, unit,
DV_CHR, 0, 0, 0644, "brooktree");
#endif /* DEVFS */
}
/*
* interrupt handling routine complete bktr_read() if using interrupts.
*/
static void
bktr_intr( void *arg )
{
bktr_ptr_t bktr;
bt848_ptr_t bt848;
u_long bktr_status;
u_char dstatus;
bktr = (bktr_ptr_t) arg;
bt848 = bktr->base;
/*
* check to see if any interrupts are unmasked on this device. If
* none are, then we likely got here by way of being on a PCI shared
* interrupt dispatch list.
*/
if (bt848->int_mask == ALL_INTS_DISABLED)
return; /* bail out now, before we do something we
shouldn't */
if (!(bktr->flags & METEOR_OPEN)) {
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->int_mask = ALL_INTS_DISABLED;
/* return; ?? */
}
/* record and clear the INTerrupt status bits */
bktr_status = bt848->int_stat;
bt848->int_stat = bktr_status & ~I2C_BITS; /* don't touch i2c */
/* record and clear the device status register */
dstatus = bt848->dstatus;
bt848->dstatus = 0x00;
#if defined( STATUS_SUM )
/* add any new device status or INTerrupt status bits */
status_sum |= (bktr_status & ~(BT848_INT_RSV0|BT848_INT_RSV1));
status_sum |= ((dstatus & (BT848_DSTATUS_COF|BT848_DSTATUS_LOF)) << 6);
#endif /* STATUS_SUM */
/*
printf( " STATUS %x %x %x \n",
dstatus, bktr_status, bt848->risc_count );
*/
/* if risc was disabled re-start process again */
if ( !(bktr_status & BT848_INT_RISC_EN) ||
((bktr_status & (BT848_INT_FBUS |
BT848_INT_FTRGT |
BT848_INT_FDSR |
BT848_INT_PPERR |
BT848_INT_RIPERR |
BT848_INT_PABORT |
BT848_INT_OCERR |
BT848_INT_SCERR)) != 0) ) {
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->int_mask = ALL_INTS_DISABLED;
bt848->risc_strt_add = vtophys(bktr->dma_prog);
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = bktr->capcontrol;
bt848->int_mask = BT848_INT_MYSTERYBIT |
BT848_INT_RISCI |
BT848_INT_VSYNC |
BT848_INT_FMTCHG;
bt848->cap_ctl = bktr->bktr_cap_ctl;
return;
}
if (!(bktr_status & BT848_INT_RISCI))
return;
/**
printf( "intr status %x %x %x\n",
bktr_status, dstatus, bt848->risc_count );
*/
/*
* Disable future interrupts if a capture mode is not selected.
* This can happen when we are in the process of closing or
* changing capture modes, otherwise it shouldn't happen.
*/
if (!(bktr->flags & METEOR_CAP_MASK))
bt848->cap_ctl = CAPTURE_OFF;
/*
* Register the completed field
*/
if ( bktr_status & BT848_INT_FIELD )
bktr->flags &= ~METEOR_WANT_EVEN;
else
bktr->flags &= ~METEOR_WANT_ODD;
/*
* If we have a complete frame.
*/
if (!(bktr->flags & METEOR_WANT_MASK)) {
bktr->frames_captured++;
/*
* post the completion time.
*/
if (bktr->flags & METEOR_WANT_TS) {
struct timeval *ts;
if ((u_int) bktr->alloc_pages * PAGE_SIZE
<= (bktr->frame_size + sizeof(struct timeval))) {
ts =(struct timeval *)bktr->bigbuf +
bktr->frame_size;
/* doesn't work in synch mode except
* for first frame */
/* XXX */
microtime(ts);
}
}
/*
* Wake up the user in single capture mode.
*/
if (bktr->flags & METEOR_SINGLE) {
/* stop dma */
bt848->int_mask = ALL_INTS_DISABLED;
/* disable risc, leave fifo running */
bt848->gpio_dma_ctl = FIFO_ENABLED;
wakeup((caddr_t)bktr);
}
/*
* If the user requested to be notified via signal,
* let them know the frame is complete.
*/
if (bktr->proc && !(bktr->signal & METEOR_SIG_MODE_MASK))
psignal( bktr->proc,
bktr->signal&(~METEOR_SIG_MODE_MASK) );
/*
* Reset the want flags if in continuous or
* synchronous capture mode.
*/
if (bktr->flags & (METEOR_CONTIN | METEOR_SYNCAP)) {
switch(bktr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
bktr->flags |= METEOR_WANT_ODD;
break;
case METEOR_ONLY_EVEN_FIELDS:
bktr->flags |= METEOR_WANT_EVEN;
break;
default:
bktr->flags |= METEOR_WANT_MASK;
break;
}
}
}
return;
}
/*---------------------------------------------------------
**
** BrookTree 848 character device driver routines
**
**---------------------------------------------------------
*/
#define UNIT(x) ((x) & 0x0f)
#define MINOR(x) ((x >> 4) & 0x0f)
#define VIDEO_DEV 0x00
#define TUNER_DEV 0x01
/*
*
*/
int
bktr_open( dev_t dev, int flags, int fmt, struct proc *p )
{
bktr_ptr_t bktr;
int unit;
unit = UNIT( minor(dev) );
if (unit >= NBKTR) /* unit out of range */
return( ENXIO );
bktr = &(brooktree[ unit ]);
if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */
return( ENXIO );
switch ( MINOR( minor(dev) ) ) {
case VIDEO_DEV:
return( video_open( bktr ) );
case TUNER_DEV:
return( tuner_open( bktr ) );
}
return( ENXIO );
}
/*
*
*/
static int
video_open( bktr_ptr_t bktr )
{
bt848_ptr_t bt848;
if (bktr->flags & METEOR_OPEN) /* device is busy */
return( EBUSY );
bktr->flags |= METEOR_OPEN;
bt848 = bktr->base;
/**
dump_bt848( bt848 );
*/
bt848->dstatus = 0x00; /* clear device status reg. */
bt848->adc = SYNC_LEVEL;
bt848->iform = BT848_IFORM_M_MUX1 |
BT848_IFORM_X_XT0 |
BT848_IFORM_F_NTSCM;
bktr->flags = (bktr->flags & ~METEOR_DEV_MASK) | METEOR_DEV0;
bktr->format_params = FORMAT_PARAMS_NTSC525;
bktr->max_clip_node = 0;
bt848->color_ctl_gamma = 0;
bt848->color_ctl_rgb_ded = 1;
bt848->color_ctl_color_bars = 0;
bt848->color_ctl_ext_frmrate = 0;
bt848->color_ctl_swap = 0;
bt848->e_hscale_lo = 170;
bt848->o_hscale_lo = 170;
bt848->e_delay_lo = 0x72;
bt848->o_delay_lo = 0x72;
bt848->e_scloop = 0;
bt848->o_scloop = 0;
bt848->vbi_pack_size = 0;
bt848->vbi_pack_del = 0;
bzero((u_char *) bktr->bigbuf, 640*480*4);
bktr->fifo_errors = 0;
bktr->dma_errors = 0;
bktr->frames_captured = 0;
bktr->even_fields_captured = 0;
bktr->odd_fields_captured = 0;
bktr->proc = (struct proc *)0;
set_fps(bktr, 30);
bktr->video.addr = 0;
bktr->video.width = 0;
bktr->video.banksize = 0;
bktr->video.ramsize = 0;
bktr->pixfmt_compat = TRUE;
bktr->format = METEOR_GEO_RGB16;
bktr->pixfmt = oformat_meteor_to_bt( bktr->format );
bt848->int_mask = BT848_INT_MYSTERYBIT; /* what does this bit do ??? */
return( 0 );
}
/*
*
*/
static int
tuner_open( bktr_ptr_t bktr )
{
if ( !(bktr->tflags & TUNER_INITALIZED) ) /* device not found */
return( ENXIO );
if ( bktr->tflags & TUNER_OPEN ) /* already open */
return( 0 );
bktr->tflags |= TUNER_OPEN;
/* enable drivers on the GPIO port that control the MUXes */
bktr->base->gpio_out_en = GPIO_AUDIOMUX_BITS;
/* unmure the audio stream */
set_audio( bktr, AUDIO_UNMUTE );
/* enable stereo if appropriate */
if ( bktr->card.dbx )
set_BTSC( bktr, 0 );
return( 0 );
}
/*
*
*/
int
bktr_close( dev_t dev, int flags, int fmt, struct proc *p )
{
bktr_ptr_t bktr;
int unit;
unit = UNIT( minor(dev) );
if (unit >= NBKTR) /* unit out of range */
return( ENXIO );
bktr = &(brooktree[ unit ]);
switch ( MINOR( minor(dev) ) ) {
case VIDEO_DEV:
return( video_close( bktr ) );
case TUNER_DEV:
return( tuner_close( bktr ) );
}
return( ENXIO );
}
/*
*
*/
static int
video_close( bktr_ptr_t bktr )
{
bt848_ptr_t bt848;
bktr->flags &= ~(METEOR_OPEN |
METEOR_SINGLE |
METEOR_CAP_MASK |
METEOR_WANT_MASK);
bt848 = bktr->base;
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->cap_ctl = CAPTURE_OFF;
bktr->dma_prog_loaded = FALSE;
bt848->tdec = 0;
bt848->int_mask = ALL_INTS_DISABLED;
/** FIXME: is 0xf magic, wouldn't 0x00 work ??? */
bt848->sreset = 0xf;
bt848->int_stat = ALL_INTS_CLEARED;
return( 0 );
}
/*
* tuner close handle,
* place holder for tuner specific operations on a close.
*/
static int
tuner_close( bktr_ptr_t bktr )
{
bktr->tflags &= ~TUNER_OPEN;
/* mute the audio by switching the mux */
set_audio( bktr, AUDIO_MUTE );
/* disable drivers on the GPIO port that control the MUXes */
bktr->base->gpio_out_en = 0;
return( 0 );
}
/*
*
*/
int
bktr_read( dev_t dev, struct uio *uio, int ioflag )
{
bktr_ptr_t bktr;
bt848_ptr_t bt848;
int unit;
int status;
int count;
if (minor(dev) > 0)
return( ENXIO );
unit = UNIT(minor(dev));
if (unit >= NBKTR) /* unit out of range */
return( ENXIO );
bktr = &(brooktree[unit]);
if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
if (bktr->flags & METEOR_CAP_MASK)
return( EIO ); /* already capturing */
count = bktr->rows * bktr->cols *
pixfmt_table[ bktr->pixfmt ].public.Bpp;
if ((int) uio->uio_iov->iov_len < count)
return( EINVAL );
bktr->flags &= ~(METEOR_CAP_MASK | METEOR_WANT_MASK);
/* Start capture */
bt848 = bktr->base;
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = FIFO_RISC_ENABLED;
status = tsleep((caddr_t)bktr, METPRI, "captur", 0);
if (!status) /* successful capture */
status = uiomove((caddr_t)bktr->bigbuf, count, uio);
else
printf ("meteor%d: read: tsleep error %d\n", unit, status);
bktr->flags &= ~(METEOR_SINGLE | METEOR_WANT_MASK);
return( status );
}
/*
*
*/
int
bktr_write( dev_t dev, struct uio *uio, int ioflag )
{
return( 0 );
}
/*
*
*/
int
bktr_ioctl( dev_t dev, int cmd, caddr_t arg, int flag, struct proc* pr )
{
bktr_ptr_t bktr;
int unit;
unit = UNIT(minor(dev));
if (unit >= NBKTR) /* unit out of range */
return( ENXIO );
bktr = &(brooktree[ unit ]);
if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
switch ( MINOR( minor(dev) ) ) {
case VIDEO_DEV:
return( video_ioctl( bktr, unit, cmd, arg, pr ) );
case TUNER_DEV:
return( tuner_ioctl( bktr, unit, cmd, arg, pr ) );
}
return( ENXIO );
}
/*
* video ioctls
*/
static int
video_ioctl( bktr_ptr_t bktr, int unit, int cmd, caddr_t arg, struct proc* pr )
{
int status;
int count;
int tmp_int;
bt848_ptr_t bt848;
volatile u_char c_temp;
volatile u_short s_temp;
unsigned int temp, temp1;
unsigned int error;
struct meteor_geomet *geo;
struct meteor_counts *cnt;
struct meteor_video *video;
vm_offset_t buf;
struct format_params *fp;
int i;
bt848 = bktr->base;
switch ( cmd ) {
case BT848SCLIP: /* set clip region */
bktr->max_clip_node = 0;
memcpy(&bktr->clip_list, arg, sizeof(bktr->clip_list));
for (i = 0; i < BT848_MAX_CLIP_NODE; i++) {
if (bktr->clip_list[i].y_min == 0 &&
bktr->clip_list[i].y_max == 0) {
bktr->max_clip_node = i;
break;
}
}
/* make sure that the list contains a valid clip secquence */
/* the clip rectangles should be sorted by x then by y as the
second order sort key */
/* clip rectangle list is terminated by y_min and y_max set to 0 */
/* to disable clipping set y_min and y_max to 0 in the first
clip rectangle . The first clip rectangle is clip_list[0].
*/
if (bktr->max_clip_node == 0 &&
(bktr->clip_list[0].y_min != 0 &&
bktr->clip_list[0].y_max != 0)) {
return EINVAL;
}
for (i = 0; i < BT848_MAX_CLIP_NODE - 1 ; i++) {
if (bktr->clip_list[i].y_min == 0 &&
bktr->clip_list[i].y_max == 0) {
break;
}
if ( bktr->clip_list[i+1].y_min != 0 &&
bktr->clip_list[i+1].y_max != 0 &&
bktr->clip_list[i].x_min > bktr->clip_list[i+1].x_min ) {
bktr->max_clip_node = 0;
return (EINVAL);
}
if (bktr->clip_list[i].x_min >= bktr->clip_list[i].x_max ||
bktr->clip_list[i].y_min >= bktr->clip_list[i].y_max ||
bktr->clip_list[i].x_min < 0 ||
bktr->clip_list[i].x_max < 0 ||
bktr->clip_list[i].y_min < 0 ||
bktr->clip_list[i].y_max < 0 ) {
bktr->max_clip_node = 0;
return (EINVAL);
}
}
bktr->dma_prog_loaded = FALSE;
break;
case METEORSTATUS: /* get Bt848 status */
c_temp = bt848->dstatus;
temp = 0;
if (!(c_temp & 0x40)) temp |= METEOR_STATUS_HCLK;
if (!(c_temp & 0x10)) temp |= METEOR_STATUS_FIDT;
*(u_short *)arg = temp;
break;
case METEORSFMT: /* set input format */
switch(*(unsigned long *)arg & METEOR_FORM_MASK ) {
case 0: /* default */
case METEOR_FMT_NTSC:
bktr->flags = (bktr->flags & ~METEOR_FORM_MASK) |
METEOR_NTSC;
bt848->iform &= ~BT848_IFORM_FORMAT;
bt848->iform |= BT848_IFORM_F_NTSCM;
bt848->adelay = 0x68;
bt848->bdelay = 0x5d;
bktr->format_params = FORMAT_PARAMS_NTSC525;
break;
case METEOR_FMT_PAL:
bktr->flags = (bktr->flags & ~METEOR_FORM_MASK) |
METEOR_PAL;
bt848->iform &= ~BT848_IFORM_FORMAT;
bt848->iform |= BT848_IFORM_F_PALBDGHI;
bt848->adelay = 0x7f;
bt848->bdelay = 0x72;
bktr->format_params = FORMAT_PARAMS_PAL625;
break;
case METEOR_FMT_AUTOMODE:
bktr->flags = (bktr->flags & ~METEOR_FORM_MASK) |
METEOR_AUTOMODE;
bt848->iform &= ~BT848_IFORM_FORMAT;
break;
default:
return( EINVAL );
}
break;
case METEORGFMT: /* get input format */
*(u_long *)arg = bktr->flags & METEOR_FORM_MASK;
break;
case METEORSCOUNT: /* (re)set error counts */
cnt = (struct meteor_counts *) arg;
bktr->fifo_errors = cnt->fifo_errors;
bktr->dma_errors = cnt->dma_errors;
bktr->frames_captured = cnt->frames_captured;
bktr->even_fields_captured = cnt->even_fields_captured;
bktr->odd_fields_captured = cnt->odd_fields_captured;
break;
case METEORGCOUNT: /* get error counts */
cnt = (struct meteor_counts *) arg;
cnt->fifo_errors = bktr->fifo_errors;
cnt->dma_errors = bktr->dma_errors;
cnt->frames_captured = bktr->frames_captured;
cnt->even_fields_captured = bktr->even_fields_captured;
cnt->odd_fields_captured = bktr->odd_fields_captured;
break;
case METEORGVIDEO:
video = (struct meteor_video *)arg;
video->addr = bktr->video.addr;
video->width = bktr->video.width;
video->banksize = bktr->video.banksize;
video->ramsize = bktr->video.ramsize;
break;
case METEORSVIDEO:
video = (struct meteor_video *)arg;
bktr->video.addr = video->addr;
bktr->video.width = video->width;
bktr->video.banksize = video->banksize;
bktr->video.ramsize = video->ramsize;
break;
case METEORSFPS:
set_fps(bktr, *(u_short *)arg);
break;
case METEORGFPS:
*(u_short *)arg = bktr->fps;
break;
case METEORSHUE: /* set hue */
bt848->hue = (*(u_char *) arg) & 0xff;
break;
case METEORGHUE: /* get hue */
*(u_char *)arg = bt848->hue;
break;
case METEORSBRIG: /* set brightness */
bt848->bright = *(u_char *)arg & 0xff;
break;
case METEORGBRIG: /* get brightness */
*(u_char *)arg = bt848->bright;
break;
case METEORSCSAT: /* set chroma saturation */
temp = (int)*(u_char *)arg;
bt848->sat_u_lo = bt848->sat_v_lo = (temp << 1) & 0xff;
bt848->e_control &= ~(BT848_E_CONTROL_SAT_U_MSB |
BT848_E_CONTROL_SAT_V_MSB);
bt848->o_control &= ~(BT848_O_CONTROL_SAT_U_MSB |
BT848_O_CONTROL_SAT_V_MSB);
if ( temp & BIT_SEVEN_HIGH ) {
bt848->e_control |= (BT848_E_CONTROL_SAT_U_MSB |
BT848_E_CONTROL_SAT_V_MSB);
bt848->o_control |= (BT848_O_CONTROL_SAT_U_MSB |
BT848_O_CONTROL_SAT_V_MSB);
}
break;
case METEORGCSAT: /* get chroma saturation */
temp = (bt848->sat_v_lo >> 1) & 0xff;
if ( bt848->e_control & BT848_E_CONTROL_SAT_V_MSB )
temp |= BIT_SEVEN_HIGH;
*(u_char *)arg = (u_char)temp;
break;
case METEORSCONT: /* set contrast */
temp = (int)*(u_char *)arg & 0xff;
temp <<= 1;
bt848->contrast_lo = temp & 0xff;
bt848->e_control &= ~BT848_E_CONTROL_CON_MSB;
bt848->o_control &= ~BT848_O_CONTROL_CON_MSB;
bt848->e_control |=
((temp & 0x100) >> 6 ) & BT848_E_CONTROL_CON_MSB;
bt848->o_control |=
((temp & 0x100) >> 6 ) & BT848_O_CONTROL_CON_MSB;
break;
case METEORGCONT: /* get contrast */
temp = (int)bt848->contrast_lo & 0xff;
temp |= ((int)bt848->o_control & 0x04) << 6;
*(u_char *)arg = (u_char)((temp >> 1) & 0xff);
break;
case METEORSSIGNAL:
if(*(int *)arg == 0 || *(int *)arg >= NSIG) {
return( EINVAL );
break;
}
bktr->signal = *(int *) arg;
bktr->proc = pr;
break;
case METEORGSIGNAL:
*(int *)arg = bktr->signal;
break;
case METEORCAPTUR:
temp = bktr->flags;
switch (*(int *) arg) {
case METEOR_CAP_SINGLE:
if (bktr->bigbuf==0) /* no frame buffer allocated */
return( ENOMEM );
/* already capturing */
/* XXX:
if (temp & METEOR_CAP_MASK)
return( EIO );
*/
start_capture(bktr, METEOR_SINGLE);
/* wait for capture to complete */
bt848->int_stat = ALL_INTS_CLEARED;
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = bktr->capcontrol;
bt848->int_mask = BT848_INT_MYSTERYBIT |
BT848_INT_RISCI |
BT848_INT_VSYNC |
BT848_INT_FMTCHG;
bt848->cap_ctl = bktr->bktr_cap_ctl;
error = tsleep((caddr_t)bktr, METPRI, "captur", hz);
if (error && (error != ERESTART)) {
/* Here if we didn't get complete frame */
printf( "bktr%d: ioctl: tsleep error %d %x\n",
unit, error, bt848->risc_count);
/* stop dma */
bt848->int_mask = ALL_INTS_DISABLED;
/* disable risc, leave fifo running */
bt848->gpio_dma_ctl = FIFO_ENABLED;
}
bktr->flags &= ~(METEOR_SINGLE|METEOR_WANT_MASK);
/* FIXME: should we set bt848->int_stat ??? */
break;
case METEOR_CAP_CONTINOUS:
if (bktr->bigbuf==0) /* no frame buffer allocated */
return( ENOMEM );
if (temp & METEOR_CAP_MASK)
return( EIO ); /* already capturing */
start_capture(bktr, METEOR_CONTIN);
bt848->int_stat = bt848->int_stat;
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = bktr->capcontrol;
bt848->cap_ctl = bktr->bktr_cap_ctl;
bt848->int_mask = BT848_INT_MYSTERYBIT |
BT848_INT_RISCI |
BT848_INT_VSYNC |
BT848_INT_FMTCHG;
/**
dump_bt848( bt848 );
*/
break;
case METEOR_CAP_STOP_CONT:
if (bktr->flags & METEOR_CONTIN) {
/* turn off capture */
bt848->int_mask = ALL_INTS_DISABLED;
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->cap_ctl = CAPTURE_OFF;
bktr->flags &=
~(METEOR_CONTIN | METEOR_WANT_MASK);
}
}
break;
case METEORSETGEO:
geo = (struct meteor_geomet *) arg;
fp = &format_params[bktr->format_params];
error = 0;
/* Either even or odd, if even & odd, then these a zero */
if ((geo->oformat & METEOR_GEO_ODD_ONLY) &&
(geo->oformat & METEOR_GEO_EVEN_ONLY)) {
printf( "bktr%d: ioctl: Geometry odd or even only.\n",
unit);
return( EINVAL );
}
/* set/clear even/odd flags */
if (geo->oformat & METEOR_GEO_ODD_ONLY)
bktr->flags |= METEOR_ONLY_ODD_FIELDS;
else
bktr->flags &= ~METEOR_ONLY_ODD_FIELDS;
if (geo->oformat & METEOR_GEO_EVEN_ONLY)
bktr->flags |= METEOR_ONLY_EVEN_FIELDS;
else
bktr->flags &= ~METEOR_ONLY_EVEN_FIELDS;
/* can't change parameters while capturing */
/* XXX:
if (bktr->flags & METEOR_CAP_MASK)
return( EBUSY );
*/
if ((geo->columns & 0x3fe) != geo->columns) {
printf(
"bktr%d: ioctl: %d: columns too large or not even.\n",
unit, geo->columns);
error = EINVAL;
}
if (((geo->rows & 0x7fe) != geo->rows) ||
((geo->oformat & METEOR_GEO_FIELD_MASK) &&
((geo->rows & 0x3fe) != geo->rows)) ) {
printf(
"bktr%d: ioctl: %d: rows too large or not even.\n",
unit, geo->rows);
error = EINVAL;
}
if (geo->frames > 32) {
printf("bktr%d: ioctl: too many frames.\n", unit);
error = EINVAL;
}
if (error)
return( error );
bktr->dma_prog_loaded = FALSE;
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->int_mask = ALL_INTS_DISABLED;
if (temp=geo->rows * geo->columns * geo->frames * 2) {
if (geo->oformat & METEOR_GEO_RGB24) temp = temp * 2;
/* meteor_mem structure for SYNC Capture */
if (geo->frames > 1) temp += PAGE_SIZE;
temp = btoc(temp);
if ((int) temp > bktr->alloc_pages
&& bktr->video.addr == 0) {
buf = get_bktr_mem(unit, temp*PAGE_SIZE);
if (buf != 0) {
kmem_free(kernel_map, bktr->bigbuf,
(bktr->alloc_pages * PAGE_SIZE));
bktr->bigbuf = buf;
bktr->alloc_pages = temp;
if (bootverbose)
printf(
"meteor%d: ioctl: Allocating %d bytes\n",
unit, temp*PAGE_SIZE);
}
else
error = ENOMEM;
}
}
if (error)
return error;
bktr->rows = geo->rows;
bktr->cols = geo->columns;
bktr->frames = geo->frames;
/* horizontal scale */
temp = ((fp->htotal*fp->hactive_frac) / bktr->cols - 1) * 4096;
bt848->e_hscale_lo = temp & 0xff;
bt848->o_hscale_lo = temp & 0xff;
bt848->e_hscale_hi = (temp >> 8) & 0xff;
bt848->o_hscale_hi = (temp >> 8) & 0xff;
/* horizontal active */
temp = bktr->cols;
bt848->e_hactive_lo = temp & 0xff;
bt848->o_hactive_lo = temp & 0xff;
bt848->e_crop &= ~0x3;
bt848->o_crop &= ~0x3;
bt848->e_crop |= (temp >> 8) & 0x3;
bt848->o_crop |= (temp >> 8) & 0x3;
/* horizontal delay */
temp = ((float)fp->hdelay / fp->hactive) * bktr->cols;
temp = temp + 2; /* why?? - rmt */
temp = temp & 0x3fe;
bt848->e_delay_lo = temp & 0xff;
bt848->o_delay_lo = temp & 0xff;
bt848->e_crop &= ~0xc;
bt848->o_crop &= ~0xc;
bt848->e_crop |= (temp >> 6) & 0xc;
bt848->o_crop |= (temp >> 6) & 0xc;
/* vertical scale */
if (geo->oformat & METEOR_GEO_ODD_ONLY ||
geo->oformat & METEOR_GEO_EVEN_ONLY)
tmp_int = 65536.0 -
((float)fp->vactive / 2 / bktr->rows - 1) * 512.0;
else
tmp_int = 65536.0 -
((float)fp->vactive / bktr->rows - 1) * 512.0;
tmp_int &= 0x1fff;
bt848->e_vscale_lo = tmp_int & 0xff;
bt848->o_vscale_lo = tmp_int & 0xff;
bt848->e_vscale_hi &= ~0x1f;
bt848->o_vscale_hi &= ~0x1f;
bt848->e_vscale_hi |= (tmp_int >> 8) & 0x1f;
bt848->o_vscale_hi |= (tmp_int >> 8) & 0x1f;
/* vertical active */
bt848->e_crop &= ~0x30;
bt848->e_crop |= (fp->vactive >> 4) & 0x30;
bt848->e_vactive_lo = fp->vactive & 0xff;
bt848->o_crop &= ~0x30;
bt848->o_crop |= (fp->vactive >> 4) & 0x30;
bt848->o_vactive_lo = fp->vactive & 0xff;
/* vertical delay */
bt848->e_vdelay_lo = fp->vdelay;
bt848->o_vdelay_lo = fp->vdelay;
/* Pixel format (if in meteor pixfmt compatibility mode) */
if ( bktr->pixfmt_compat ) {
bktr->format = METEOR_GEO_YUV_422;
switch (geo->oformat & METEOR_GEO_OUTPUT_MASK) {
case 0: /* default */
case METEOR_GEO_RGB16:
bktr->format = METEOR_GEO_RGB16;
break;
case METEOR_GEO_RGB24:
bktr->format = METEOR_GEO_RGB24;
break;
case METEOR_GEO_YUV_422:
bktr->format = METEOR_GEO_YUV_422;
break;
case METEOR_GEO_YUV_PACKED:
bktr->format = METEOR_GEO_YUV_PACKED;
break;
}
bktr->pixfmt = oformat_meteor_to_bt( bktr->format );
}
/*
if (geo->oformat & METEOR_GEO_YUV_12 )
bktr->format |= METEOR_GEO_YUV_12;
else if (geo->oformat & METEOR_GEO_YUV_9 )
bktr->format |= METEOR_GEO_YUV_9;
*/
if (bktr->flags & METEOR_CAP_MASK) {
if (bktr->flags & (METEOR_CONTIN|METEOR_SYNCAP)) {
switch(bktr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
bktr->flags |= METEOR_WANT_ODD;
break;
case METEOR_ONLY_EVEN_FIELDS:
bktr->flags |= METEOR_WANT_EVEN;
break;
default:
bktr->flags |= METEOR_WANT_MASK;
break;
}
start_capture(bktr, METEOR_CONTIN);
bt848->int_stat = bt848->int_stat;
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = bktr->capcontrol;
bt848->int_mask = BT848_INT_MYSTERYBIT |
BT848_INT_VSYNC |
BT848_INT_FMTCHG;
}
}
break;
/* end of METEORSETGEO */
default:
return common_ioctl( bktr, bt848, cmd, arg );
}
return( 0 );
}
/*
* tuner ioctls
*/
static int
tuner_ioctl( bktr_ptr_t bktr, int unit, int cmd, caddr_t arg, struct proc* pr )
{
bt848_ptr_t bt848;
int status;
int tmp_int;
unsigned int temp, temp1;
int offset;
int count;
u_char *buf;
bt848 = bktr->base;
switch ( cmd ) {
#if defined( TUNER_AFC )
case TVTUNER_SETAFC:
bktr->tuner.afc = (*(int *)arg != 0);
break;
case TVTUNER_GETAFC:
*(int *)arg = bktr->tuner.afc;
/* XXX Perhaps use another bit to indicate AFC success? */
break;
#endif /* TUNER_AFC */
case TVTUNER_SETCHNL:
temp_mute( bktr, TRUE );
temp = tv_channel( bktr, (int)*(unsigned long *)arg );
temp_mute( bktr, FALSE );
if ( temp < 0 )
return( EINVAL );
*(unsigned long *)arg = temp;
break;
case TVTUNER_GETCHNL:
*(unsigned long *)arg = bktr->tuner.channel;
break;
case TVTUNER_SETTYPE:
temp = *(unsigned long *)arg;
if ( (temp < CHNLSET_MIN) || (temp > CHNLSET_MAX) )
return( EINVAL );
bktr->tuner.chnlset = temp;
break;
case TVTUNER_GETTYPE:
*(unsigned long *)arg = bktr->tuner.chnlset;
break;
case TVTUNER_GETSTATUS:
temp = i2cRead( bktr, TSA552x_RADDR );
*(unsigned long *)arg = temp & 0xff;
break;
case TVTUNER_SETFREQ:
temp_mute( bktr, TRUE );
temp = tv_freq( bktr, (int)*(unsigned long *)arg );
temp_mute( bktr, FALSE );
if ( temp < 0 )
return( EINVAL );
*(unsigned long *)arg = temp;
break;
case TVTUNER_GETFREQ:
*(unsigned long *)arg = bktr->tuner.frequency;
break;
case BT848_SAUDIO: /* set audio channel */
if ( set_audio( bktr, *(int*)arg ) < 0 )
return( EIO );
break;
/* hue is a 2's compliment number, -90' to +89.3' in 0.7' steps */
case BT848_SHUE: /* set hue */
bt848->hue = (u_char)(*(int*)arg & 0xff);
break;
case BT848_GHUE: /* get hue */
*(int*)arg = (signed char)(bt848->hue & 0xff);
break;
/* brightness is a 2's compliment #, -50 to +%49.6% in 0.39% steps */
case BT848_SBRIG: /* set brightness */
bt848->bright = (u_char)(*(int *)arg & 0xff);
break;
case BT848_GBRIG: /* get brightness */
*(int *)arg = (signed char)(bt848->bright & 0xff);
break;
/* */
case BT848_SCSAT: /* set chroma saturation */
tmp_int = *(int*)arg;
temp = bt848->e_control;
temp1 = bt848->o_control;
if ( tmp_int & BIT_EIGHT_HIGH ) {
temp |= (BT848_E_CONTROL_SAT_U_MSB |
BT848_E_CONTROL_SAT_V_MSB);
temp1 |= (BT848_O_CONTROL_SAT_U_MSB |
BT848_O_CONTROL_SAT_V_MSB);
}
else {
temp &= ~(BT848_E_CONTROL_SAT_U_MSB |
BT848_E_CONTROL_SAT_V_MSB);
temp1 &= ~(BT848_O_CONTROL_SAT_U_MSB |
BT848_O_CONTROL_SAT_V_MSB);
}
bt848->sat_u_lo = (u_char)(tmp_int & 0xff);
bt848->sat_v_lo = (u_char)(tmp_int & 0xff);
bt848->e_control = temp;
bt848->o_control = temp1;
break;
case BT848_GCSAT: /* get chroma saturation */
tmp_int = (int)(bt848->sat_v_lo & 0xff);
if ( bt848->e_control & BT848_E_CONTROL_SAT_V_MSB )
tmp_int |= BIT_EIGHT_HIGH;
*(int*)arg = tmp_int;
break;
/* */
case BT848_SVSAT: /* set chroma V saturation */
tmp_int = *(int*)arg;
temp = bt848->e_control;
temp1 = bt848->o_control;
if ( tmp_int & BIT_EIGHT_HIGH) {
temp |= BT848_E_CONTROL_SAT_V_MSB;
temp1 |= BT848_O_CONTROL_SAT_V_MSB;
}
else {
temp &= ~BT848_E_CONTROL_SAT_V_MSB;
temp1 &= ~BT848_O_CONTROL_SAT_V_MSB;
}
bt848->sat_v_lo = (u_char)(tmp_int & 0xff);
bt848->e_control = temp;
bt848->o_control = temp1;
break;
case BT848_GVSAT: /* get chroma V saturation */
tmp_int = (int)bt848->sat_v_lo & 0xff;
if ( bt848->e_control & BT848_E_CONTROL_SAT_V_MSB )
tmp_int |= BIT_EIGHT_HIGH;
*(int*)arg = tmp_int;
break;
/* */
case BT848_SUSAT: /* set chroma U saturation */
tmp_int = *(int*)arg;
temp = bt848->e_control;
temp1 = bt848->o_control;
if ( tmp_int & BIT_EIGHT_HIGH ) {
temp |= BT848_E_CONTROL_SAT_U_MSB;
temp1 |= BT848_O_CONTROL_SAT_U_MSB;
}
else {
temp &= ~BT848_E_CONTROL_SAT_U_MSB;
temp1 &= ~BT848_O_CONTROL_SAT_U_MSB;
}
bt848->sat_u_lo = (u_char)(tmp_int & 0xff);
bt848->e_control = temp;
bt848->o_control = temp1;
break;
case BT848_GUSAT: /* get chroma U saturation */
tmp_int = (int)bt848->sat_u_lo & 0xff;
if ( bt848->e_control & BT848_E_CONTROL_SAT_U_MSB )
tmp_int |= BIT_EIGHT_HIGH;
*(int*)arg = tmp_int;
break;
/* */
case BT848_SCONT: /* set contrast */
tmp_int = *(int*)arg;
temp = bt848->e_control;
temp1 = bt848->o_control;
if ( tmp_int & BIT_EIGHT_HIGH ) {
temp |= BT848_E_CONTROL_CON_MSB;
temp1 |= BT848_O_CONTROL_CON_MSB;
}
else {
temp &= ~BT848_E_CONTROL_CON_MSB;
temp1 &= ~BT848_O_CONTROL_CON_MSB;
}
bt848->contrast_lo = (u_char)(tmp_int & 0xff);
bt848->e_control = temp;
bt848->o_control = temp1;
break;
case BT848_GCONT: /* get contrast */
tmp_int = (int)bt848->contrast_lo & 0xff;
if ( bt848->e_control & BT848_E_CONTROL_CON_MSB )
tmp_int |= BIT_EIGHT_HIGH;
*(int*)arg = tmp_int;
break;
/* FIXME: SCBARS and CCBARS require a valid int * */
/* argument to succeed, but its not used; consider */
/* using the arg to store the on/off state so */
/* there's only one ioctl() needed to turn cbars on/off */
case BT848_SCBARS: /* set colorbar output */
bt848->color_ctl_color_bars = 1;
break;
case BT848_CCBARS: /* clear colorbar output */
bt848->color_ctl_color_bars = 0;
break;
case BT848_GAUDIO: /* get audio channel */
temp = bktr->audio_mux_select;
if ( bktr->audio_mute_state == TRUE )
temp |= AUDIO_MUTE;
*(int*)arg = temp;
break;
case BT848_SBTSC: /* set audio channel */
if ( set_BTSC( bktr, *(int*)arg ) < 0 )
return( EIO );
break;
case BT848_WEEPROM: /* write eeprom */
offset = (((struct eeProm *)arg)->offset);
count = (((struct eeProm *)arg)->count);
buf = &(((struct eeProm *)arg)->bytes[ 0 ]);
if ( writeEEProm( bktr, offset, count, buf ) < 0 )
return( EIO );
break;
case BT848_REEPROM: /* read eeprom */
offset = (((struct eeProm *)arg)->offset);
count = (((struct eeProm *)arg)->count);
buf = &(((struct eeProm *)arg)->bytes[ 0 ]);
if ( readEEProm( bktr, offset, count, buf ) < 0 )
return( EIO );
break;
case BT848_SIGNATURE:
offset = (((struct eeProm *)arg)->offset);
count = (((struct eeProm *)arg)->count);
buf = &(((struct eeProm *)arg)->bytes[ 0 ]);
if ( signCard( bktr, offset, count, buf ) < 0 )
return( EIO );
break;
default:
return common_ioctl( bktr, bt848, cmd, arg );
}
return( 0 );
}
/*
* common ioctls
*/
int
common_ioctl( bktr_ptr_t bktr, bt848_ptr_t bt848, int cmd, caddr_t arg )
{
int status,
pixfmt;
unsigned int temp;
struct meteor_pixfmt_internal *pf_int;
struct meteor_pixfmt *pf_pub;
switch (cmd) {
case METEORSINPUT: /* set input device */
switch(*(unsigned long *)arg & METEOR_DEV_MASK) {
/* this is the RCA video input */
case 0: /* default */
case METEOR_INPUT_DEV0:
bktr->flags = (bktr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV0;
bt848->iform &= ~BT848_IFORM_MUXSEL;
bt848->iform |= BT848_IFORM_M_MUX1;
bt848->e_control &= ~BT848_E_CONTROL_COMP;
bt848->o_control &= ~BT848_O_CONTROL_COMP;
set_audio( bktr, AUDIO_EXTERN );
break;
/* this is the tuner input */
case METEOR_INPUT_DEV1:
bktr->flags = (bktr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV1;
bt848->iform &= ~BT848_IFORM_MUXSEL;
bt848->iform |= BT848_IFORM_M_MUX0;
bt848->e_control &= ~BT848_E_CONTROL_COMP;
bt848->o_control &= ~BT848_O_CONTROL_COMP;
set_audio( bktr, AUDIO_TUNER );
break;
/* this is the S-VHS input */
case METEOR_INPUT_DEV2:
case METEOR_INPUT_DEV_SVIDEO:
bktr->flags = (bktr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV2;
bt848->iform &= ~BT848_IFORM_MUXSEL;
bt848->iform |= BT848_IFORM_M_MUX2;
bt848->e_control |= BT848_E_CONTROL_COMP;
bt848->o_control |= BT848_O_CONTROL_COMP;
set_audio( bktr, AUDIO_EXTERN );
break;
default:
return( EINVAL );
}
break;
case METEORGINPUT: /* get input device */
*(u_long *)arg = bktr->flags & METEOR_DEV_MASK;
break;
case METEORSACTPIXFMT:
if (( *(int *)arg < 0 ) ||
( *(int *)arg >= PIXFMT_TABLE_SIZE ))
return( EINVAL );
bktr->pixfmt = *(int *)arg;
bt848->color_ctl_swap = pixfmt_swap_flags( bktr->pixfmt );
bktr->pixfmt_compat = FALSE;
break;
case METEORGACTPIXFMT:
*(int *)arg = bktr->pixfmt;
break;
case METEORGSUPPIXFMT :
pf_pub = (struct meteor_pixfmt *)arg;
pixfmt = pf_pub->index;
if (( pixfmt < 0 ) || ( pixfmt >= PIXFMT_TABLE_SIZE ))
return( EINVAL );
memcpy( pf_pub, &pixfmt_table[ pixfmt ].public,
sizeof( *pf_pub ) );
/* Patch in our format index */
pf_pub->index = pixfmt;
break;
#if defined( STATUS_SUM )
case BT848_GSTATUS: /* reap status */
disable_intr();
temp = status_sum;
status_sum = 0;
enable_intr();
*(u_int*)arg = temp;
break;
#endif /* STATUS_SUM */
default:
return( ENOTTY );
}
return( 0 );
}
/*
*
*/
int
bktr_mmap( dev_t dev, int offset, int nprot )
{
int unit;
bktr_ptr_t bktr;
unit = UNIT(minor(dev));
if (unit >= NBKTR || minor(dev) > 0 ) /* could this happen here? */
return( -1 );
bktr = &(brooktree[ unit ]);
if (nprot & PROT_EXEC)
return( -1 );
if (offset >= bktr->alloc_pages * PAGE_SIZE)
return( -1 );
return( i386_btop(vtophys(bktr->bigbuf) + offset) );
}
/******************************************************************************
* bt848 RISC programming routines:
*/
/*
*
*/
static int
dump_bt848( bt848_ptr_t bt848 )
{
volatile u_char *bt848r = (u_char *)bt848;
int r[60]={
4, 8, 0xc, 0x8c, 0x10, 0x90, 0x14, 0x94,
0x18, 0x98, 0x1c, 0x9c, 0x20, 0xa0, 0x24, 0xa4,
0x28, 0x2c, 0xac, 0x30, 0x34, 0x38, 0x3c, 0x40,
0xc0, 0x48, 0x4c, 0xcc, 0x50, 0xd0, 0xd4, 0x60,
0x64, 0x68, 0x6c, 0xec, 0xd8, 0xdc, 0xe0, 0xe4,
0, 0, 0, 0
};
int i;
for (i = 0; i < 40; i+=4) {
printf(" Reg:value : \t%x:%x \t%x:%x \t %x:%x \t %x:%x\n",
r[i], bt848r[r[i]],
r[i+1], bt848r[r[i+1]],
r[i+2], bt848r[r[i+2]],
r[i+3], bt848r[r[i+3]]);
}
printf(" INT STAT %x \n", bt848->int_stat);
printf(" Reg INT_MASK %x \n", bt848->int_mask);
printf(" Reg GPIO_DMA_CTL %x \n", bt848->gpio_dma_ctl);
return( 0 );
}
/*
* build write instruction
*/
#define BKTR_FM1 0x6
#define BKTR_FM3 0xe
#define BKTR_VRE 0x4
#define BKTR_VRO 0xC
#define BKTR_PXV 0x0
#define BKTR_EOL 0x1
#define BKTR_SOL 0x2
#define OP_WRITE (0x1 << 28)
#define OP_SKIP (0x2 << 28)
#define OP_WRITEC (0x5 << 28)
#define OP_JUMP (0x7 << 28)
#define OP_SYNC (0x8 << 28)
#define OP_WRITE123 (0x9 << 28)
#define OP_WRITES123 (0xb << 28)
#define OP_SOL (1 << 27)
#define OP_EOL (1 << 26)
bool_t notclipped (bktr_reg_t * bktr, int x, int width) {
int i;
bktr_clip_t * clip_node;
bktr->clip_start = -1;
bktr->last_y = 0;
bktr->y = 0;
bktr->y2 = width;
bktr->line_length = width;
bktr->yclip = -1;
bktr->yclip2 = -1;
bktr->current_col = 0;
if (bktr->max_clip_node == 0 ) return TRUE;
clip_node = (bktr_clip_t *) &bktr->clip_list[0];
for (i = 0; i < bktr->max_clip_node; i++ ) {
clip_node = (bktr_clip_t *) &bktr->clip_list[i];
if (x >= clip_node->x_min && x <= clip_node->x_max ) {
bktr->clip_start = i;
return FALSE;
}
}
return TRUE;
}
bool_t getline(bktr_reg_t *bktr, int x ) {
int i, j;
bktr_clip_t * clip_node ;
if (bktr->line_length == 0 ||
bktr->current_col >= bktr->line_length) return FALSE;
bktr->y = min(bktr->last_y, bktr->line_length);
bktr->y2 = bktr->line_length;
bktr->yclip = bktr->yclip2 = -1;
for (i = bktr->clip_start; i < bktr->max_clip_node; i++ ) {
clip_node = (bktr_clip_t *) &bktr->clip_list[i];
if (x >= clip_node->x_min && x <= clip_node->x_max) {
if (bktr->last_y <= clip_node->y_min) {
bktr->y = min(bktr->last_y, bktr->line_length);
bktr->y2 = min(clip_node->y_min, bktr->line_length);
bktr->yclip = min(clip_node->y_min, bktr->line_length);
bktr->yclip2 = min(clip_node->y_max, bktr->line_length);
bktr->last_y = bktr->yclip2;
bktr->clip_start = i;
for (j = i+1; j < bktr->max_clip_node; j++ ) {
clip_node = (bktr_clip_t *) &bktr->clip_list[j];
if (x >= clip_node->x_min && x <= clip_node->x_max) {
if (bktr->last_y >= clip_node->y_min) {
bktr->yclip2 = min(clip_node->y_max, bktr->line_length);
bktr->last_y = bktr->yclip2;
bktr->clip_start = j;
}
} else break ;
}
return TRUE;
}
}
}
if (bktr->current_col <= bktr->line_length) {
bktr->current_col = bktr->line_length;
return TRUE;
}
return FALSE;
}
static bool_t split(bktr_reg_t * bktr, volatile u_long **dma_prog, int width ,
u_long operation, int pixel_width,
volatile u_char ** target_buffer, int cols ) {
u_long flag, flag2;
if ((width * pixel_width) < DMA_BT848_SPLIT ) {
if ( width == cols) {
flag = OP_SOL | OP_EOL;
} else if (bktr->current_col == 0 ) {
flag = OP_SOL;
} else if (bktr->current_col == cols) {
flag = OP_EOL;
} else flag = 0;
*(*dma_prog)++ = operation | flag | bt_enable_cnt << 12 | width * pixel_width;
if (operation != OP_SKIP )
*(*dma_prog)++ = (u_long) *target_buffer;
*target_buffer += width * pixel_width;
bktr->current_col += width;
} else {
if (bktr->current_col == 0 && width == cols) {
flag = OP_SOL ;
flag2 = OP_EOL;
} else if (bktr->current_col == 0 ) {
flag = OP_SOL;
flag2 = 0;
} else if (bktr->current_col >= cols) {
flag = 0;
flag2 = OP_EOL;
} else {
flag = 0;
flag2 = 0;
}
*(*dma_prog)++ = operation | bt_enable_cnt << 12 | flag |
(width * pixel_width / 2);
if (operation != OP_SKIP )
*(*dma_prog)++ = (u_long ) *target_buffer ;
*target_buffer += (width * pixel_width / 2) ;
*(*dma_prog)++ = operation | bt_enable_cnt << 12 | flag2 |
(width * pixel_width / 2);
if (operation != OP_SKIP )
*(*dma_prog)++ = (u_long ) *target_buffer ;
*target_buffer += (width * pixel_width / 2) ;
bktr->current_col += width;
}
return TRUE;
}
static void
rgb_prog( bktr_ptr_t bktr, char i_flag, int cols, int rows, int interlace )
{
int i;
int byte_count;
bt848_ptr_t bt848;
volatile u_long target_buffer, buffer, target,width;
volatile u_long pitch;
volatile u_long *dma_prog, *t_test;
int c;
struct meteor_pixfmt_internal *pf_int = &pixfmt_table[ bktr->pixfmt ];
u_int Bpp = pf_int->public.Bpp;
bt848 = bktr->base;
bt848->color_fmt = pf_int->color_fmt;
bt848->vbi_pack_size = 0;
bt848->vbi_pack_del = 0;
bt848->adc = SYNC_LEVEL;
bt848->color_ctl_rgb_ded = 1;
bt848->e_vscale_hi |= 0xc0;
bt848->o_vscale_hi |= 0xc0;
if (cols > 385 ) {
bt848->e_vtc = 0;
bt848->o_vtc = 0;
} else {
bt848->e_vtc = 1;
bt848->o_vtc = 1;
}
bktr->capcontrol = 3 << 2 | 3;
dma_prog = (u_long *) bktr->dma_prog;
/* Construct Write */
bt_enable_cnt = 0;
if (bktr->video.addr) {
target_buffer = (u_long) bktr->video.addr;
pitch = bktr->video.width;
}
else {
target_buffer = (u_long) vtophys(bktr->bigbuf);
pitch = cols*Bpp;
}
buffer = target_buffer;
if (interlace == 2 && rows < 320 ) target_buffer += pitch;
/* contruct sync : for video packet format */
*dma_prog++ = OP_SYNC | 1 << 15 | BKTR_FM1;
/* sync, mode indicator packed data */
*dma_prog++ = 0; /* NULL WORD */
width = cols;
for (i = 0; i < (rows/interlace); i++) {
target = target_buffer;
if ( notclipped(bktr, i, width)) {
split(bktr, (volatile u_long **) &dma_prog,
bktr->y2 - bktr->y, OP_WRITE,
Bpp, (volatile u_char **) &target, cols);
} else {
while(getline(bktr, i)) {
if (bktr->y != bktr->y2 ) {
split(bktr, (volatile u_long **) &dma_prog,
bktr->y2 - bktr->y, OP_WRITE,
Bpp, (volatile u_char **) &target, cols);
}
if (bktr->yclip != bktr->yclip2 ) {
split(bktr,(volatile u_long **) &dma_prog,
bktr->yclip2 - bktr->yclip,
OP_SKIP,
Bpp, (volatile u_char **) &target, cols);
}
}
}
target_buffer += interlace * pitch;
}
switch (i_flag) {
case 1:
/* sync vre */
*dma_prog++ = OP_SYNC | 0xC << 24 | 1 << 24 | BKTR_VRE;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP | 0xC << 24;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 2:
/* sync vro */
*dma_prog++ = OP_SYNC | 1 << 24 | 1 << 20 | BKTR_VRO;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 3:
/* sync vro */
*dma_prog++ = OP_SYNC | 1 << 24 | 1 << 15 | BKTR_VRO;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP | 0xc << 24 ;
*dma_prog = (u_long ) vtophys(bktr->odd_dma_prog);
break;
}
if (interlace == 2) {
if (rows < 320 )
target_buffer = buffer ;
else
target_buffer = buffer + pitch;
dma_prog = (u_long *) bktr->odd_dma_prog;
/* sync vre IRQ bit */
*dma_prog++ = OP_SYNC | 1 << 15 | BKTR_FM1;
*dma_prog++ = 0; /* NULL WORD */
width = cols;
for (i = 0; i < (rows/interlace); i++) {
target = target_buffer;
if ( notclipped(bktr, i, width)) {
split(bktr, (volatile u_long **) &dma_prog,
bktr->y2 - bktr->y, OP_WRITE,
Bpp, (volatile u_char **) &target, cols);
} else {
while(getline(bktr, i)) {
if (bktr->y != bktr->y2 ) {
split(bktr, (volatile u_long **) &dma_prog,
bktr->y2 - bktr->y, OP_WRITE,
Bpp, (volatile u_char **) &target,
cols);
}
if (bktr->yclip != bktr->yclip2 ) {
split(bktr, (volatile u_long **) &dma_prog,
bktr->yclip2 - bktr->yclip, OP_SKIP,
Bpp, (volatile u_char **) &target, cols);
}
}
}
target_buffer += interlace * pitch;
}
}
/* sync vre IRQ bit */
*dma_prog++ = OP_SYNC | 1 << 24 | 1 << 15 | BKTR_VRE;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP ;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog) ;
*dma_prog++ = 0; /* NULL WORD */
}
/*
*
*/
static void
yuvpack_prog( bktr_ptr_t bktr, char i_flag,
int cols, int rows, int interlace )
{
int i;
int byte_count;
volatile unsigned int inst;
volatile unsigned int inst3;
volatile u_long target_buffer, buffer;
bt848_ptr_t bt848;
volatile u_long *dma_prog;
int b;
bt848 = bktr->base;
/* color format : yuvpack */
bt848->color_fmt = 0x44;
bt848->e_scloop |= BT848_E_SCLOOP_CAGC; /* enable chroma comb */
bt848->o_scloop |= BT848_O_SCLOOP_CAGC;
bt848->color_ctl_rgb_ded = 1;
bt848->color_ctl_gamma = 1;
bt848->adc = SYNC_LEVEL;
bktr->capcontrol = 1 << 6 | 1 << 4 | 1 << 2 | 3;
bktr->capcontrol = 1 << 5 | 1 << 4 | 1 << 2 | 3;
dma_prog = (u_long *) bktr->dma_prog;
/* Construct Write */
bt_enable_cnt = 0;
/* write , sol, eol */
inst = OP_WRITE | OP_SOL | 0xf << 16 | bt_enable_cnt << 12 | (cols*2);
/* write , sol, eol */
inst3 = OP_WRITE | OP_EOL | 0xf << 16 | bt_enable_cnt << 12 | (cols);
if (bktr->video.addr)
target_buffer = (u_long) bktr->video.addr;
else
target_buffer = (u_long) vtophys(bktr->bigbuf);
buffer = target_buffer;
/* contruct sync : for video packet format */
/* sync, mode indicator packed data */
*dma_prog++ = OP_SYNC | 1 << 24 | 1 << 15 | BKTR_FM1;
*dma_prog++ = 0; /* NULL WORD */
b = cols;
for (i = 0; i < (rows/interlace); i++) {
*dma_prog++ = inst;
*dma_prog++ = target_buffer;
*dma_prog++ = inst3;
*dma_prog++ = target_buffer + b;
target_buffer += interlace*(cols * 2);
}
switch (i_flag) {
case 1:
/* sync vre */
*dma_prog++ = OP_SYNC | 1 << 24 | BKTR_VRE;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 2:
/* sync vro */
*dma_prog++ = OP_SYNC | 1 << 24 | 1 << 20 | BKTR_VRO;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 3:
/* sync vre */
*dma_prog++ = OP_SYNC | 1 << 24 | 0xf << 16 | BKTR_VRE;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP ;
*dma_prog = (u_long ) vtophys(bktr->odd_dma_prog);
break;
}
if (interlace == 2) {
target_buffer = (u_long) buffer + cols*2;
dma_prog = (u_long * ) bktr->odd_dma_prog;
/* sync vre */
*dma_prog++ = OP_SYNC | 1 << 24 | 0xf << 16 | 1 << 15
| BKTR_FM1;
*dma_prog++ = 0; /* NULL WORD */
for (i = 0; i < (rows/interlace) ; i++) {
*dma_prog++ = inst;
*dma_prog++ = target_buffer;
*dma_prog++ = inst3;
*dma_prog++ = target_buffer + b;
target_buffer += interlace * ( cols*2);
}
}
/* sync vro IRQ bit */
*dma_prog++ = OP_SYNC | 1 << 24 | 0xf << 16 | BKTR_VRO;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP | 0xf << 16;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
*dma_prog++ = OP_JUMP;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
*dma_prog++ = 0; /* NULL WORD */
}
/*
*
*/
static void
yuv422_prog( bktr_ptr_t bktr, char i_flag,
int cols, int rows, int interlace ){
int i, j;
int byte_count;
volatile unsigned int inst;
volatile unsigned int instskip, instskip2, instskip3;
volatile unsigned int inst3;
volatile u_long target_buffer, t1, buffer;
bt848_ptr_t bt848;
volatile u_long *dma_prog;
int b, b1;
bt848 = bktr->base;
dma_prog = (u_long *) bktr->dma_prog;
bktr->capcontrol = 1 << 6 | 1 << 4 | 3;
bt848->adc = SYNC_LEVEL;
bt848->oform = 0x00;
bt848->e_control |= BT848_E_CONTROL_LDEC; /* disable luma decimation */
bt848->o_control |= BT848_O_CONTROL_LDEC;
bt848->e_scloop |= BT848_O_SCLOOP_CAGC; /* chroma agc enable */
bt848->o_scloop |= BT848_O_SCLOOP_CAGC;
bt848->e_vscale_hi |= 0xc0; /* luma comb and comb enable */
bt848->o_vscale_hi |= 0xc0;
bt848->color_fmt = 0x88;
/* disable gamma correction removal */
bt848->color_ctl_gamma = 1;
bt_enable_cnt = 0;
/* Construct Write */
inst = OP_WRITE123 | OP_SOL | OP_EOL | bt_enable_cnt << 12 | (cols);
if (bktr->video.addr)
target_buffer = (u_long) bktr->video.addr;
else
target_buffer = (u_long) vtophys(bktr->bigbuf);
buffer = target_buffer;
t1 = target_buffer;
/* contruct sync : for video packet format */
*dma_prog++ = OP_SYNC | 1 << 15 | BKTR_FM3; /*sync, mode indicator packed data*/
*dma_prog++ = 0; /* NULL WORD */
for (i = 0; i < (rows/interlace ) - 1; i++) {
*dma_prog++ = inst;
*dma_prog++ = cols/2 | cols/2 << 16;
*dma_prog++ = target_buffer;
*dma_prog++ = t1 + (cols*rows) + i*cols/2 * interlace;
*dma_prog++ = t1 + (cols*rows) + (cols*rows/2) + i*cols/2 * interlace;
target_buffer += interlace*cols;
}
switch (i_flag) {
case 1:
*dma_prog++ = OP_SYNC | 0xC << 24 | 1 << 24 | BKTR_VRE; /*sync vre*/
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP | 0xc << 24;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 2:
*dma_prog++ = OP_SYNC | 0xC << 24 | 1 << 24 | BKTR_VRO; /*sync vre*/
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog);
return;
case 3:
*dma_prog++ = OP_SYNC | 1 << 15 | BKTR_VRO;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP ;
*dma_prog = (u_long ) vtophys(bktr->odd_dma_prog);
break;
}
if (interlace == 2) {
dma_prog = (u_long * ) bktr->odd_dma_prog;
target_buffer = (u_long) buffer + cols;
t1 = target_buffer + cols/2;
*dma_prog++ = OP_SYNC | 1 << 15 | BKTR_FM3;
*dma_prog++ = 0; /* NULL WORD */
for (i = 0; i < (rows/interlace ) - 1; i++) {
*dma_prog++ = inst;
*dma_prog++ = cols/2 | cols/2 << 16;
*dma_prog++ = target_buffer;
*dma_prog++ = t1 + (cols*rows) + i*cols/2 * interlace;
*dma_prog++ = t1 + (cols*rows) + (cols*rows/2) + i*cols/2 * interlace;
target_buffer += interlace*cols;
}
}
*dma_prog++ = OP_SYNC | 1 << 24 | BKTR_VRE;
*dma_prog++ = 0; /* NULL WORD */
*dma_prog++ = OP_JUMP ;
*dma_prog++ = (u_long ) vtophys(bktr->dma_prog) ;
*dma_prog++ = 0; /* NULL WORD */
}
/*
*
*/
static void
build_dma_prog( bktr_ptr_t bktr, char i_flag )
{
int i;
int rows, cols, byte_count, interlace;
volatile unsigned int inst;
volatile unsigned int inst3;
volatile u_long target_buffer;
bt848_ptr_t bt848;
volatile u_long *dma_prog;
int b;
struct meteor_pixfmt_internal *pf_int = &pixfmt_table[ bktr->pixfmt ];
bt848 = bktr->base;
bt848->int_mask = ALL_INTS_DISABLED;
/* disable FIFO & RISC, leave other bits alone */
bt848->gpio_dma_ctl &= ~FIFO_RISC_ENABLED;
/* capture control */
switch (i_flag) {
case 1:
bktr->bktr_cap_ctl =
(BT848_CAP_CTL_DITH_FRAME | BT848_CAP_CTL_EVEN);
bt848->e_vscale_hi &= ~0x20;
bt848->o_vscale_hi &= ~0x20;
interlace = 1;
break;
case 2:
bktr->bktr_cap_ctl =
(BT848_CAP_CTL_DITH_FRAME | BT848_CAP_CTL_ODD);
bt848->e_vscale_hi &= ~0x20;
bt848->o_vscale_hi &= ~0x20;
interlace = 1;
break;
default:
bktr->bktr_cap_ctl =
(BT848_CAP_CTL_DITH_FRAME |
BT848_CAP_CTL_EVEN | BT848_CAP_CTL_ODD);
bt848->e_vscale_hi |= 0x20;
bt848->o_vscale_hi |= 0x20;
interlace = 2;
break;
}
bt848->risc_strt_add = vtophys(bktr->dma_prog);
rows = bktr->rows;
cols = bktr->cols;
if ( pf_int->public.type == METEOR_PIXTYPE_RGB ) {
rgb_prog(bktr, i_flag, cols, rows, interlace);
return;
}
/* FIXME: The YUV stuff needs added to the pixfmt table */
if (bktr->format == METEOR_GEO_YUV_422 ){
yuv422_prog(bktr, i_flag, cols, rows, interlace);
return;
}
if (bktr->format == METEOR_GEO_YUV_PACKED ){
yuvpack_prog(bktr, i_flag, cols, rows, interlace);
return;
}
return;
}
/******************************************************************************
* video & video capture specific routines:
*/
/*
*
*/
static void
start_capture( bktr_ptr_t bktr, unsigned type )
{
bt848_ptr_t bt848;
u_char i_flag;
bt848 = bktr->base;
bt848->dstatus = 0;
bt848->int_stat = bt848->int_stat;
bktr->flags |= type;
switch(bktr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_EVEN_FIELDS:
bktr->flags |= METEOR_WANT_EVEN;
i_flag = 1;
break;
case METEOR_ONLY_ODD_FIELDS:
bktr->flags |= METEOR_WANT_ODD;
i_flag = 2;
break;
default:
bktr->flags |= METEOR_WANT_MASK;
i_flag = 3;
break;
}
if (bktr->dma_prog_loaded == FALSE) {
build_dma_prog(bktr, i_flag);
bktr->dma_prog_loaded = TRUE;
}
/* XXX:
switch (bktr->flags & METEOR_ONLY_FIELDS_MASK) {
default:
*bts_reg |= 0xb; bts_reg never been initialized!
}
*/
bt848->risc_strt_add = vtophys(bktr->dma_prog);
/* XXX:
bt848->gpio_dma_ctl = FIFO_RISC_ENABLED;
*/
}
/*
*
*/
static void
set_fps( bktr_ptr_t bktr, u_short fps )
{
bt848_ptr_t bt848;
bt848 = bktr->base;
bt848->gpio_dma_ctl = FIFO_RISC_DISABLED;
bt848->int_stat = ALL_INTS_CLEARED;
bktr->fps = fps;
if ( fps == 30 ) {
bt848->tdec = 0;
return;
} else {
bt848->tdec = (int) (((float) fps / 30.0) * 60.0) & 0x3f;
}
if ( bktr->flags & METEOR_CAP_MASK ) {
bt848->int_stat = ALL_INTS_CLEARED;
bt848->risc_strt_add = vtophys(bktr->dma_prog);
bt848->gpio_dma_ctl = FIFO_ENABLED;
bt848->gpio_dma_ctl = bktr->capcontrol;
bt848->int_mask = BT848_INT_MYSTERYBIT |
BT848_INT_RISCI |
BT848_INT_VSYNC |
BT848_INT_FMTCHG;
}
return;
}
/*
* There is also a problem with range checking on the 7116.
* It seems to only work for 22 bits, so the max size we can allocate
* is 22 bits long or 4194304 bytes assuming that we put the beginning
* of the buffer on a 2^24 bit boundary. The range registers will use
* the top 8 bits of the dma start registers along with the bottom 22
* bits of the range register to determine if we go out of range.
* This makes getting memory a real kludge.
*
*/
#define RANGE_BOUNDARY (1<<22)
static vm_offset_t
get_bktr_mem( int unit, unsigned size )
{
vm_offset_t addr = 0;
addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24);
if (addr == 0)
addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff,
PAGE_SIZE);
if (addr == 0) {
printf("meteor%d: Unable to allocate %d bytes of memory.\n",
unit, size);
}
return( addr );
}
/*
* Given a pixfmt index, compute the bt848 swap_flags necessary to
* achieve the specified swapping.
* Note that without bt swapping, 2Bpp and 3Bpp modes are written
* byte-swapped, and 4Bpp modes are byte and word swapped (see Table 6
* and read R->L).
* This is abstracted here: e.g. no swaps = RGBA; byte & short swap = ABGR
* as one would expect.
*/
static u_int pixfmt_swap_flags( int pixfmt )
{
struct meteor_pixfmt *pf = &pixfmt_table[ pixfmt ].public;
u_int swapf = 0;
switch ( pf->Bpp ) {
case 2 : swapf = ( pf->swap_bytes ? 0 : BSWAP );
break;
case 3 : /* no swaps supported for 3bpp - makes no sense w/ bt848 */
break;
case 4 : if ( pf->swap_bytes )
swapf = pf->swap_shorts ? 0 : WSWAP;
else
swapf = pf->swap_shorts ? BSWAP : (BSWAP | WSWAP);
break;
}
return swapf;
}
/*
* Converts meteor-defined pixel formats (e.g. METEOR_GEO_RGB16) into
* our pixfmt_table indices.
*/
static int oformat_meteor_to_bt( u_long format )
{
int i;
struct meteor_pixfmt *pf1, *pf2;
/* Find format in compatibility table */
for ( i = 0; i < METEOR_PIXFMT_TABLE_SIZE; i++ )
if ( meteor_pixfmt_table[i].meteor_format == format )
break;
if ( i >= METEOR_PIXFMT_TABLE_SIZE )
return -1;
pf1 = &meteor_pixfmt_table[i].public;
/* Match it with an entry in master pixel format table */
for ( i = 0; i < PIXFMT_TABLE_SIZE; i++ ) {
pf2 = &pixfmt_table[i].public;
if (( pf1->type == pf2->type ) &&
( pf1->Bpp == pf2->Bpp ) &&
!memcmp( pf1->masks, pf2->masks, sizeof( pf1->masks )) &&
( pf1->swap_bytes == pf2->swap_bytes ) &&
( pf1->swap_shorts == pf2->swap_shorts ))
break;
}
if ( i >= PIXFMT_TABLE_SIZE )
return -1;
return i;
}
/******************************************************************************
* i2c primitives:
*/
/* */
#define I2CBITTIME (0x5<<4) /* 5 * 0.48uS */
#define I2C_READ 0x01
#define I2C_COMMAND (I2CBITTIME | \
BT848_DATA_CTL_I2CSCL | \
BT848_DATA_CTL_I2CSDA)
/*
*
*/
static int
i2cWrite( bktr_ptr_t bktr, int addr, int byte1, int byte2 )
{
u_long x;
u_long data;
bt848_ptr_t bt848;
bt848 = bktr->base;
/* clear status bits */
bt848->int_stat = (BT848_INT_RACK | BT848_INT_I2CDONE);
/* build the command datum */
data = ((addr & 0xff) << 24) | ((byte1 & 0xff) << 16) | I2C_COMMAND;
if ( byte2 != -1 ) {
data |= ((byte2 & 0xff) << 8);
data |= BT848_DATA_CTL_I2CW3B;
}
/* write the address and data */
bt848->i2c_data_ctl = data;
/* wait for completion */
for ( x = 0x7fffffff; x; --x ) { /* safety valve */
if ( bt848->int_stat & BT848_INT_I2CDONE )
break;
}
/* check for ACK */
if ( !x || !(bt848->int_stat & BT848_INT_RACK) )
return( -1 );
/* return OK */
return( 0 );
}
/*
*
*/
static int
i2cRead( bktr_ptr_t bktr, int addr )
{
u_long x;
bt848_ptr_t bt848;
bt848 = bktr->base;
/* clear status bits */
bt848->int_stat = (BT848_INT_RACK | BT848_INT_I2CDONE);
/* write the READ address */
bt848->i2c_data_ctl = ((addr & 0xff) << 24) | I2C_COMMAND;
/* wait for completion */
for ( x = 0x7fffffff; x; --x ) { /* safety valve */
if ( bt848->int_stat & BT848_INT_I2CDONE )
break;
}
/* check for ACK */
if ( !x || !(bt848->int_stat & BT848_INT_RACK) )
return( -1 );
/* it was a read */
return( (bt848->i2c_data_ctl >> 8) & 0xff );
}
#if defined( I2C_SOFTWARE_PROBE )
/*
* we are keeping this around for any parts that we need to probe
* but that CANNOT be probed via an i2c read.
* this is necessary because the hardware i2c mechanism
* cannot be programmed for 1 byte writes.
* currently there are no known i2c parts that we need to probe
* and that cannot be safely read.
*/
static int i2cProbe( bktr_ptr_t bktr, int addr );
#define BITD 40
#define EXTRA_START
/*
* probe for an I2C device at addr.
*/
static int
i2cProbe( bktr_ptr_t bktr, int addr )
{
int x, status;
bt848_ptr_t bt848;
bt848 = bktr->base;
/* the START */
#if defined( EXTRA_START )
bt848->i2c_data_ctl = 1; DELAY( BITD ); /* release data */
bt848->i2c_data_ctl = 3; DELAY( BITD ); /* release clock */
#endif /* EXTRA_START */
bt848->i2c_data_ctl = 2; DELAY( BITD ); /* lower data */
bt848->i2c_data_ctl = 0; DELAY( BITD ); /* lower clock */
/* write addr */
for ( x = 7; x >= 0; --x ) {
if ( addr & (1<<x) ) {
bt848->i2c_data_ctl = 1;
DELAY( BITD ); /* assert HI data */
bt848->i2c_data_ctl = 3;
DELAY( BITD ); /* strobe clock */
bt848->i2c_data_ctl = 1;
DELAY( BITD ); /* release clock */
}
else {
bt848->i2c_data_ctl = 0;
DELAY( BITD ); /* assert LO data */
bt848->i2c_data_ctl = 2;
DELAY( BITD ); /* strobe clock */
bt848->i2c_data_ctl = 0;
DELAY( BITD ); /* release clock */
}
}
/* look for an ACK */
bt848->i2c_data_ctl = 1; DELAY( BITD ); /* float data */
bt848->i2c_data_ctl = 3; DELAY( BITD ); /* strobe clock */
status = bt848->i2c_data_ctl & 1; /* read the ACK bit */
bt848->i2c_data_ctl = 1; DELAY( BITD ); /* release clock */
/* the STOP */
bt848->i2c_data_ctl = 0; DELAY( BITD ); /* lower clock & data */
bt848->i2c_data_ctl = 2; DELAY( BITD ); /* release clock */
bt848->i2c_data_ctl = 3; DELAY( BITD ); /* release data */
return( status );
}
#undef EXTRA_START
#undef BITD
#endif /* I2C_SOFTWARE_PROBE */
/*
*
*/
static int
writeEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
{
return( -1 );
}
/*
*
*/
static int
readEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
{
int x;
int addr;
int max;
int byte;
/* get the address of the EEProm */
addr = (int)(bktr->card.eepromAddr & 0xff);
if ( addr == 0 )
return( -1 );
max = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
if ( (offset + count) > max )
return( -1 );
/* set the start address */
if ( i2cWrite( bktr, addr, offset, -1 ) == -1 )
return( -1 );
/* the read cycle */
for ( x = 0; x < count; ++x ) {
if ( (byte = i2cRead( bktr, (addr | 1) )) == -1 )
return( -1 );
data[ x ] = byte;
}
return( 0 );
}
/******************************************************************************
* card probe
*/
/*
* the recognized cards, used as indexes of several tables.
*
* if probeCard() fails to detect the proper card on boot you can
* override it by setting the following define to the card you are using:
*
#define OVERRIDE_CARD <card type>
*
* where <card type> is one of the following card defines.
*/
#define CARD_UNKNOWN 0
#define CARD_MIRO 1
#define CARD_HAUPPAUGE 2
#define CARD_STB 3
#define CARD_INTEL 4
/*
* the data for each type of card
*
* Note:
* these entried MUST be kept in the order defined by the CARD_XXX defines!
*/
const struct CARDTYPE cards[] = {
/* CARD_UNKNOWN */
{ "Unknown", /* the 'name' */
NULL, /* the tuner */
0, /* dbx unknown */
0, /* EEProm unknown */
0, /* EEProm unknown */
{ 0, 0, 0, 0, 0 } },
/* CARD_MIRO */
{ "Miro TV", /* the 'name' */
NULL, /* the tuner */
0, /* dbx unknown */
0, /* EEProm unknown */
0, /* size unknown */
{ 0x02, 0x01, 0x00, 0x00, 1 } }, /* XXX ??? */
/* CARD_HAUPPAUGE */
{ "Hauppauge WinCast/TV", /* the 'name' */
NULL, /* the tuner */
0, /* dbx is optional */
PFC8582_WADDR, /* EEProm type */
(u_char)(256 / EEPROMBLOCKSIZE), /* 256 bytes */
{ 0x00, 0x02, 0x01, 0x01, 1 } }, /* audio MUX values */
/* CARD_STB */
{ "STB TV/PCI", /* the 'name' */
NULL, /* the tuner */
0, /* dbx is optional */
X24C01_WADDR, /* EEProm type */
(u_char)(128 / EEPROMBLOCKSIZE), /* 128 bytes */
{ 0x00, 0x01, 0x02, 0x02, 1 } }, /* audio MUX values */
/* CARD_INTEL */
{ "Intel Smart Video III", /* the 'name' */
NULL, /* the tuner */
0,
0,
0,
{ 0, 0, 0, 0, 0 } }
};
/*
* the data for each type of tuner
*
* if probeCard() fails to detect the proper tuner on boot you can
* override it by setting the following define to the tuner present:
*
#define OVERRIDE_TUNER <tuner type>
*
* where <tuner type> is one of the following tuner defines.
*/
/* indexes into tuners[] */
#define NO_TUNER 0
#define TEMIC_NTSC 1
#define TEMIC_PAL 2
#define TEMIC_SECAM 3
#define PHILIPS_NTSC 4
#define PHILIPS_PAL 5
#define PHILIPS_SECAM 6
/* XXX FIXME: this list is incomplete */
/* input types */
#define TTYPE_XXX 0
#define TTYPE_NTSC 1
#define TTYPE_NTSC_J 2
#define TTYPE_PAL 3
#define TTYPE_PAL_M 4
#define TTYPE_PAL_N 5
#define TTYPE_SECAM 6
/**
struct TUNER {
char* name;
u_char type;
u_char pllAddr;
u_char pllControl;
u_char bandLimits[ 2 ];
u_char bandAddrs[ 3 ];
};
*/
const struct TUNER tuners[] = {
/* XXX FIXME: fill in the band-switch crosspoints */
/* NO_TUNER */
{ "<none>", /* the 'name' */
TTYPE_XXX, /* input type */
0x00, /* PLL write address */
0x00, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0x00, 0x00, 0x00 } }, /* the band-switch values */
/* TEMIC_NTSC */
{ "Temic NTSC", /* the 'name' */
TTYPE_NTSC, /* input type */
TEMIC_NTSC_WADDR, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0x02, 0x04, 0x01 } }, /* the band-switch values */
/* TEMIC_PAL */
{ "Temic PAL", /* the 'name' */
TTYPE_PAL, /* input type */
TEMIC_PALI_WADDR, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0x02, 0x04, 0x01 } }, /* the band-switch values */
/* TEMIC_SECAM */
{ "Temic SECAM", /* the 'name' */
TTYPE_SECAM, /* input type */
0x00, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0x02, 0x04, 0x01 } }, /* the band-switch values */
/* PHILIPS_NTSC */
{ "Philips NTSC", /* the 'name' */
TTYPE_NTSC, /* input type */
PHILIPS_NTSC_WADDR, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0xa0, 0x90, 0x30 } }, /* the band-switch values */
/* PHILIPS_PAL */
{ "Philips PAL", /* the 'name' */
TTYPE_PAL, /* input type */
0x00, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0xa0, 0x90, 0x30 } }, /* the band-switch values */
/* PHILIPS_SECAM */
{ "Philips SECAM", /* the 'name' */
TTYPE_SECAM, /* input type */
0x00, /* PLL write address */
TSA552x_SCONTROL, /* control byte for PLL */
{ 0x00, 0x00 }, /* band-switch crosspoints */
{ 0xa0, 0x90, 0x30 } } /* the band-switch values */
};
/*
* get a signature of the card
* read all 128 possible i2c read addresses from 0x01 thru 0xff
* build a bit array with a 1 bit for each i2c device that responds
*
* XXX FIXME: use offset & count args
*/
#define ABSENT (-1)
static int
signCard( bktr_ptr_t bktr, int offset, int count, u_char* sig )
{
int x;
for ( x = 0; x < 16; ++x )
sig[ x ] = 0;
for ( x = 0; x < 128; ++x ) {
if ( i2cRead( bktr, (2 * x) + 1 ) != ABSENT ) {
sig[ x / 8 ] |= (1 << (x % 8) );
}
}
return( 0 );
}
#undef ABSENT
/*
* determine the card brand/model
*/
#define ABSENT (-1)
static void
probeCard( bktr_ptr_t bktr, int verbose )
{
int card;
int status;
#if defined( OVERRIDE_CARD )
bktr->card = cards[ (card = OVERRIDE_CARD) ];
goto checkTuner;
#endif
/* look for a tuner */
if ( i2cRead( bktr, TSA552x_RADDR ) == ABSENT ) {
bktr->card = cards[ (card = CARD_INTEL) ];
bktr->card.tuner = &tuners[ NO_TUNER ];
goto checkDBX;
}
/* look for a hauppauge card */
if ( (status = i2cRead( bktr, PFC8582_RADDR )) != ABSENT ) {
bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
goto checkTuner;
}
/* look for an STB card */
if ( (status = i2cRead( bktr, X24C01_RADDR )) != ABSENT ) {
bktr->card = cards[ (card = CARD_STB) ];
goto checkTuner;
}
/* XXX FIXME: (how do I) look for a Miro card */
bktr->card = cards[ (card = CARD_MIRO) ];
checkTuner:
#if defined( OVERRIDE_TUNER )
bktr->card.tuner = &tuners[ OVERRIDE_TUNER ];
goto checkDBX;
#endif
/* differentiate type of tuner */
if ( i2cRead( bktr, TEMIC_NTSC_RADDR ) != ABSENT ) {
bktr->card.tuner = &tuners[ TEMIC_NTSC ];
goto checkDBX;
}
if ( i2cRead( bktr, PHILIPS_NTSC_RADDR ) != ABSENT ) {
bktr->card.tuner = &tuners[ PHILIPS_NTSC ];
goto checkDBX;
}
if ( card == CARD_HAUPPAUGE ) {
if ( i2cRead( bktr, TEMIC_PALI_RADDR ) != ABSENT ) {
bktr->card.tuner = &tuners[ TEMIC_PAL ];
goto checkDBX;
}
}
/* no tuner found */
bktr->card.tuner = &tuners[ NO_TUNER ];
checkDBX:
#if defined( OVERRIDE_DBX )
bktr->card.dbx = OVERRIDE_DBX;
goto end;
#endif
/* probe for BTSC (dbx) chips */
if ( i2cRead( bktr, TDA9850_RADDR ) != ABSENT )
bktr->card.dbx = 1;
end:
if ( verbose ) {
printf( "%s", bktr->card.name );
if ( bktr->card.tuner )
printf( ", %s tuner", bktr->card.tuner->name );
if ( bktr->card.dbx )
printf( ", dbx stereo" );
printf( ".\n" );
}
}
#undef ABSENT
/******************************************************************************
* tuner specific routines:
*/
/* scaling factor for frequencies expressed as ints */
#define FREQFACTOR 16
/*
* Format:
* entry 0: MAX legal channel
* entry 1: IF frequency
* expressed as fi{mHz} * 16,
* eg 45.75mHz == 45.75 * 16 = 732
* entry 2: [place holder/future]
* entry 3: base of channel record 0
* entry 3 + (x*3): base of channel record 'x'
* entry LAST: NULL channel entry marking end of records
*
* Record:
* int 0: base channel
* int 1: frequency of base channel,
* expressed as fb{mHz} * 16,
* int 2: offset frequency between channels,
* expressed as fo{mHz} * 16,
*/
/*
* North American Broadcast Channels:
*
* 2: 55.25 mHz - 4: 67.25 mHz
* 5: 77.25 mHz - 6: 83.25 mHz
* 7: 175.25 mHz - 13: 211.25 mHz
* 14: 471.25 mHz - 83: 885.25 mHz
*
* IF freq: 45.75 mHz
*/
#define OFFSET 6.00
int nabcst[] = {
83, (int)( 45.75 * FREQFACTOR), 0,
14, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
0
};
#undef OFFSET
/*
* North American Cable Channels, IRC:
*
* 2: 55.25 mHz - 4: 67.25 mHz
* 5: 77.25 mHz - 6: 83.25 mHz
* 7: 175.25 mHz - 13: 211.25 mHz
* 14: 121.25 mHz - 22: 169.25 mHz
* 23: 217.25 mHz - 94: 643.25 mHz
* 95: 91.25 mHz - 99: 115.25 mHz
*
* IF freq: 45.75 mHz
*/
#define OFFSET 6.00
int irccable[] = {
99, (int)( 45.75 * FREQFACTOR), 0,
95, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
23, (int)(217.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
14, (int)(121.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
0
};
#undef OFFSET
/*
* North American Cable Channels, HRC:
*
* 2: 54 mHz - 4: 66 mHz
* 5: 78 mHz - 6: 84 mHz
* 7: 174 mHz - 13: 210 mHz
* 14: 120 mHz - 22: 168 mHz
* 23: 216 mHz - 94: 642 mHz
* 95: 90 mHz - 99: 114 mHz
*
* IF freq: 45.75 mHz
*/
#define OFFSET 6.00
int hrccable[] = {
99, (int)( 45.75 * FREQFACTOR), 0,
95, (int)( 90.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
23, (int)(216.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
14, (int)(120.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
7, (int)(174.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
5, (int)( 78.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
2, (int)( 54.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
0
};
#undef OFFSET
/*
* Western European broadcast channels:
*
* (there are others that appear to vary between countries - rmt)
*
* here's the table Philips provides:
* caution, some of the offsets don't compute...
*
* 1 4525 700 N21
*
* 2 4825 700 E2
* 3 5525 700 E3
* 4 6225 700 E4
*
* 5 17525 700 E5
* 6 18225 700 E6
* 7 18925 700 E7
* 8 19625 700 E8
* 9 20325 700 E9
* 10 21025 700 E10
* 11 21725 700 E11
* 12 22425 700 E12
*
* 13 5375 700 ITA
* 14 6225 700 ITB
*
* 15 8225 700 ITC
*
* 16 17525 700 ITD
* 17 18325 700 ITE
*
* 18 19225 700 ITF
* 19 20125 700 ITG
* 20 21025 700 ITH
*
* 21 47125 800 E21
* 22 47925 800 E22
* 23 48725 800 E23
* 24 49525 800 E24
* 25 50325 800 E25
* 26 51125 800 E26
* 27 51925 800 E27
* 28 52725 800 E28
* 29 53525 800 E29
* 30 54325 800 E30
* 31 55125 800 E31
* 32 55925 800 E32
* 33 56725 800 E33
* 34 57525 800 E34
* 35 58325 800 E35
* 36 59125 800 E36
* 37 59925 800 E37
* 38 60725 800 E38
* 39 61525 800 E39
* 40 62325 800 E40
* 41 63125 800 E41
* 42 63925 800 E42
* 43 64725 800 E43
* 44 65525 800 E44
* 45 66325 800 E45
* 46 67125 800 E46
* 47 67925 800 E47
* 48 68725 800 E48
* 49 69525 800 E49
* 50 70325 800 E50
* 51 71125 800 E51
* 52 71925 800 E52
* 53 72725 800 E53
* 54 73525 800 E54
* 55 74325 800 E55
* 56 75125 800 E56
* 57 75925 800 E57
* 58 76725 800 E58
* 59 77525 800 E59
* 60 78325 800 E60
* 61 79125 800 E61
* 62 79925 800 E62
* 63 80725 800 E63
* 64 81525 800 E64
* 65 82325 800 E65
* 66 83125 800 E66
* 67 83925 800 E67
* 68 84725 800 E68
* 69 85525 800 E69
*
* 70 4575 800 IA
* 71 5375 800 IB
* 72 6175 800 IC
*
* 74 6925 700 S01
* 75 7625 700 S02
* 76 8325 700 S03
*
* 80 10525 700 S1
* 81 11225 700 S2
* 82 11925 700 S3
* 83 12625 700 S4
* 84 13325 700 S5
* 85 14025 700 S6
* 86 14725 700 S7
* 87 15425 700 S8
* 88 16125 700 S9
* 89 16825 700 S10
* 90 23125 700 S11
* 91 23825 700 S12
* 92 24525 700 S13
* 93 25225 700 S14
* 94 25925 700 S15
* 95 26625 700 S16
* 96 27325 700 S17
* 97 28025 700 S18
* 98 28725 700 S19
* 99 29425 700 S20
*
* 100 3890 000 IFFREQ
*
*/
#define OFFSET 8.00
int weurope[] = {
69, (int)( 38.90 * FREQFACTOR), 0,
21, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
0
};
#undef OFFSET
/*
* Japanese Broadcast Channels:
*
* 1: 91.25MHz - 3: 103.25MHz
* 4: 171.25MHz - 7: 189.25MHz
* 8: 193.25MHz - 12: 217.25MHz (VHF)
* 13: 471.25MHz - 62: 765.25MHz (UHF)
*
* IF freq: 45.75 mHz
* OR
* IF freq: 58.75 mHz
*/
#define OFFSET 6.00
#define IF_FREQ 45.75
int jpnbcst[] = {
62, (int)(IF_FREQ * FREQFACTOR), 0,
13, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR),
0
};
#undef IF_FREQ
#undef OFFSET
int* freqTable[] = {
NULL,
nabcst,
irccable,
hrccable,
weurope,
jpnbcst
};
#define TBL_CHNL freqTable[ bktr->tuner.chnlset ][ x ]
#define TBL_BASE_FREQ freqTable[ bktr->tuner.chnlset ][ x + 1 ]
#define TBL_OFFSET freqTable[ bktr->tuner.chnlset ][ x + 2 ]
static int
frequency_lookup( bktr_ptr_t bktr, int channel )
{
int x;
/* check for "> MAX channel" */
x = 0;
if ( channel > TBL_CHNL )
return( -1 );
/* search the table for data */
for ( x = 3; TBL_CHNL; x += 3 ) {
if ( channel >= TBL_CHNL ) {
return( TBL_BASE_FREQ +
((channel - TBL_CHNL) * TBL_OFFSET) );
}
}
/* not found, must be below the MIN channel */
return( -1 );
}
#undef TBL_OFFSET
#undef TBL_BASE_FREQ
#undef TBL_CHNL
#define TBL_IF freqTable[ bktr->tuner.chnlset ][ 1 ]
/*
* set the frequency of the tuner
*/
static int
tv_freq( bktr_ptr_t bktr, int frequency )
{
const struct TUNER* tuner;
u_char addr;
u_char control;
u_char band;
int N;
int order;
tuner = bktr->card.tuner;
if ( tuner == NULL )
return( -1 );
/*
* select the band based on frequency
* XXX FIXME: get the cross-over points from the tuner struct
*/
if ( frequency < (160 * FREQFACTOR) )
band = tuner->bandAddrs[ 0 ];
else if ( frequency < (454 * FREQFACTOR) )
band = tuner->bandAddrs[ 1 ];
else
band = tuner->bandAddrs[ 2 ];
/* set the address of the PLL */
addr = tuner->pllAddr;
control = tuner->pllControl;
/*
* N = 16 * { fRF(pc) + fIF(pc) }
* where:
* pc is picture carrier, fRF & fIF are in mHz
*
* frequency was passed in as mHz * 16
*/
#if defined( TEST_TUNER_AFC )
if ( bktr->tuner.afc )
frequency -= 4;
#endif
N = frequency + TBL_IF;
if ( frequency > bktr->tuner.frequency ) {
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
i2cWrite( bktr, addr, control, band );
}
else {
i2cWrite( bktr, addr, control, band );
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
}
#if defined( TUNER_AFC )
if ( bktr->tuner.afc == TRUE ) {
if ( (N = do_afc( bktr, addr, N )) < 0 ) {
/* AFC failed, restore requested frequency */
N = frequency + TBL_IF;
i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff );
}
else
frequency = N - TBL_IF;
}
#endif /* TUNER_AFC */
/* update frequency */
bktr->tuner.frequency = frequency;
return( 0 );
}
#if defined( TUNER_AFC )
/*
*
*/
static int
do_afc( bktr_ptr_t bktr, int addr, int frequency )
{
int step;
int status;
int origFrequency;
origFrequency = frequency;
/* wait for first setting to take effect */
tsleep( (caddr_t)bktr, PZERO, "tuning", hz/8 );
if ( (status = i2cRead( bktr, addr + 1 )) < 0 )
return( -1 );
#if defined( TEST_TUNER_AFC )
printf( "\nOriginal freq: %d, status: 0x%02x\n", frequency, status );
#endif
for ( step = 0; step < AFC_MAX_STEP; ++step ) {
if ( (status = i2cRead( bktr, addr + 1 )) < 0 )
goto fubar;
if ( !(status & 0x40) ) {
#if defined( TEST_TUNER_AFC )
printf( "no lock!\n" );
#endif
goto fubar;
}
switch( status & AFC_BITS ) {
case AFC_FREQ_CENTERED:
#if defined( TEST_TUNER_AFC )
printf( "Centered, freq: %d, status: 0x%02x\n", frequency, status );
#endif
return( frequency );
case AFC_FREQ_MINUS_125:
case AFC_FREQ_MINUS_62:
#if defined( TEST_TUNER_AFC )
printf( "Low, freq: %d, status: 0x%02x\n", frequency, status );
#endif
--frequency;
break;
case AFC_FREQ_PLUS_62:
case AFC_FREQ_PLUS_125:
#if defined( TEST_TUNER_AFC )
printf( "Hi, freq: %d, status: 0x%02x\n", frequency, status );
#endif
++frequency;
break;
}
i2cWrite( bktr, addr,
(frequency>>8) & 0x7f, frequency & 0xff );
DELAY( AFC_DELAY );
}
fubar:
i2cWrite( bktr, addr,
(origFrequency>>8) & 0x7f, origFrequency & 0xff );
return( -1 );
}
#endif /* TUNER_AFC */
#undef TBL_IF
/*
* set the channel of the tuner
*/
static int
tv_channel( bktr_ptr_t bktr, int channel )
{
int frequency;
/* calculate the frequency according to tuner type */
if ( (frequency = frequency_lookup( bktr, channel )) < 0 )
return( -1 );
/* set the new frequency */
if ( tv_freq( bktr, frequency ) < 0 )
return( -1 );
/* OK to update records */
return( (bktr->tuner.channel = channel) );
}
/******************************************************************************
* audio specific routines:
*/
/*
*
*/
#define AUDIOMUX_DISCOVER_NOT
static int
set_audio( bktr_ptr_t bktr, int cmd )
{
bt848_ptr_t bt848;
u_long temp;
volatile u_char idx;
#if defined( AUDIOMUX_DISCOVER )
if ( cmd >= 200 )
cmd -= 200;
else
#endif /* AUDIOMUX_DISCOVER */
/* check for existance of audio MUXes */
if ( !bktr->card.audiomuxs[ 4 ] )
return( -1 );
switch (cmd) {
case AUDIO_TUNER:
bktr->audio_mux_select = 0;
break;
case AUDIO_EXTERN:
bktr->audio_mux_select = 1;
break;
case AUDIO_INTERN:
bktr->audio_mux_select = 2;
break;
case AUDIO_MUTE:
bktr->audio_mute_state = TRUE; /* set mute */
break;
case AUDIO_UNMUTE:
bktr->audio_mute_state = FALSE; /* clear mute */
break;
default:
printf("bktr: audio cmd error %02x\n", cmd);
return( -1 );
}
bt848 = bktr->base;
/*
* Leave the upper bits of the GPIO port alone in case they control
* something like the dbx or teletext chips. This doesn't guarantee
* success, but follows the rule of least astonishment.
*/
/* XXX FIXME: this was an 8 bit reference before new struct ??? */
bt848->gpio_reg_inp = (~GPIO_AUDIOMUX_BITS & 0xff);
if ( bktr->audio_mute_state == TRUE )
idx = 3;
else
idx = bktr->audio_mux_select;
temp = bt848->gpio_data & ~GPIO_AUDIOMUX_BITS;
bt848->gpio_data =
#if defined( AUDIOMUX_DISCOVER )
bt848->gpio_data = temp | (cmd & 0xff);
printf("cmd: %d\n", cmd );
#else
temp | bktr->card.audiomuxs[ idx ];
#endif /* AUDIOMUX_DISCOVER */
return( 0 );
}
/*
*
*/
static void
temp_mute( bktr_ptr_t bktr, int flag )
{
static int muteState = FALSE;
if ( flag == TRUE ) {
muteState = bktr->audio_mute_state;
set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */
}
else {
tsleep( (caddr_t)bktr, PZERO, "tuning", hz/8 );
if ( muteState == FALSE )
set_audio( bktr, AUDIO_UNMUTE );
}
}
/*
* setup the dbx chip
* XXX FIXME: alot of work to be done here, this merely unmutes it.
*/
static int
set_BTSC( bktr_ptr_t bktr, int control )
{
return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) );
}
/******************************************************************************
* magic:
*/
static bktr_devsw_installed = 0;
static void
bktr_drvinit( void *unused )
{
dev_t dev;
if ( ! bktr_devsw_installed ) {
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev,&bktr_cdevsw, NULL);
bktr_devsw_installed = 1;
}
}
SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL)
#endif /* NBKTR > 0 */
/* Local Variables: */
/* mode: C */
/* c-indent-level: 8 */
/* c-brace-offset: -8 */
/* c-argdecl-indent: 8 */
/* c-label-offset: -8 */
/* c-continued-statement-offset: 8 */
/* c-tab-always-indent: nil */
/* End: */
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