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freebsd-dev/sys/pci/meteor.c
Stefan Eßer dd7610fca4 Make PCI interrupt handlers return void like everybody else does. 
Reviewed by:	davidg
1996-01-23 21:48:28 +00:00

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/*
* 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:
8/21/95 Release
8/23/95 On advice from Stefan Esser, added volatile to PCI
memory pointers to remove PCI caching .
8/29/95 Fixes suggested by Bruce Evans.
meteor_mmap should return -1 on error rather than 0.
unit # > NMETEOR should be unit # >= NMETEOR.
10/24/95 Turn 50 Hz processing for SECAM and 60 Hz processing
off for AUTOMODE.
11/11/95 Change UV from always begin signed to ioctl selected
to either signed or unsigned.
12/07/95 Changed 7196 startup codes for 50 Hz as recommended
by Luigi Rizzo (luigi@iet.unipi.it)
12/08/95 Clear SECAM bit in PAL/NTSC and set input field count
bits for 50 Hz mode (PAL/SECAM) before I was setting the
output count bits. by Luigi Rizzo (luigi@iet.unipi.it)
12/18/95 Correct odd DMA field (never exceed, but good for safety
Changed 7196 startup codes for 50 Hz as recommended
by Luigi Rizzo (luigi@iet.unipi.it)
12/19/95 Changed field toggle mode to enable (offset 0x3c)
recommended by luigi@iet.unipi.it
Added in prototyping, include file, staticizing,
and DEVFS changes from FreeBSD team.
Changed the default allocated pages from 151 (NTSC)
to 217 (PAL).
Cleaned up some old comments in iic_write().
Added a Field (even or odd) only capture mode to
eliminate the high frequency problems with compression
algorithms. Recommended by luigi@iet.unipi.it.
Changed geometry ioctl so if it couldn't allocated a
large enough contiguous space, it wouldn't free the
stuff it already had.
Added new mode called YUV_422 which delivers the
data in planer Y followed by U followed by V. This
differs from the standard YUV_PACKED mode in that
the chrominance (UV) data is in the correct (different)
order. This is for programs like vic and mpeg_encode
so they don't have to reorder the chrominance data.
Added field count to stats.
Increment frame count stat if capturing continuous on
even frame grabs.
Added my email address to these comments
(james@cs.uwm.edu) suggested by (luigi@iet.unipt.it :-).
Changed the user mode signal mechanism to allow the
user program to be interrupted at the end of a frame
in any one of the modes. Added SSIGNAL ioctl.
Added a SFPS/GFPS ioctl so one may set the frames per
second that the card catpures. This code needs to be
completed.
Changed the interrupt routine so synchronous capture
will work on fields or frames and the starting frame
can be either even or odd.
Added HALT_N_FRAMES and CONT_N_FRAMES so one could
stop and continue synchronous capture mode.
Change the tsleep/wakeup function to wait on mtr
rather than &read_intr_wait.
Add option (METEOR_FreeBSD_210) for FreeBSD 2.1
to compile.
*/
#include "meteor.h"
#if NMETEOR > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/devconf.h>
#include <sys/mman.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif /* DEVFS */
#include <machine/clock.h>
#include <machine/cpu.h> /* bootverbose */
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/vm_param.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>
static void meteor_intr __P((void *arg));
/*
* 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 METEOR_ALLOC_PAGES
#define METEOR_ALLOC_PAGES 217
#endif
#define METEOR_ALLOC (METEOR_ALLOC_PAGES * PAGE_SIZE)
#define NUM_SAA7116_PCI_REGS 37
#define NUM_SAA7196_I2C_REGS 49
typedef struct {
vm_offset_t virt_baseaddr; /* saa7116 register virtual address */
vm_offset_t phys_baseaddr; /* saa7116 register physical address */
vm_offset_t capt_cntrl; /* capture control register offset 0x40 */
vm_offset_t stat_reg; /* status register offset 0x60 */
vm_offset_t iic_virt_addr; /* ICC bus register offset 0x64 */
pcici_t tag; /* PCI tag, for doing PCI commands */
vm_offset_t bigbuf; /* buffer that holds the captured image */
int alloc_pages; /* number of pages in bigbuf */
struct proc *proc; /* process to receive raised signal */
int signal; /* signal to send to process */
struct meteor_mem *mem; /* used to control sync. multi-frame output */
u_long synch_wait; /* wait for free buffer before continuing */
short current; /* frame number in buffer (1-frames) */
short rows; /* number of rows in a frame */
short cols; /* number of columns in a frame */
short depth; /* number of byte per pixel */
short frames; /* number of frames allocated */
int frame_size; /* number of bytes in a frame */
u_long fifo_errors; /* number of fifo capture errors since open */
u_long dma_errors; /* number of DMA capture errors since open */
u_long frames_captured;/* number of frames captured since open */
u_long even_fields_captured; /* number of even fields captured */
u_long odd_fields_captured; /* number of odd fields captured */
unsigned flags;
#define METEOR_INITALIZED 0x00000001
#define METEOR_OPEN 0x00000002
#define METEOR_MMAP 0x00000004
#define METEOR_INTR 0x00000008
#define METEOR_READ 0x00000010 /* XXX never gets referenced */
#define METEOR_SINGLE 0x00000020 /* get single frame */
#define METEOR_CONTIN 0x00000040 /* continuously get frames */
#define METEOR_SYNCAP 0x00000080 /* synchronously get frames */
#define METEOR_CAP_MASK 0x000000f0
#define METEOR_NTSC 0x00000100
#define METEOR_PAL 0x00000200
#define METEOR_SECAM 0x00000400
#define METEOR_AUTOMODE 0x00000800
#define METEOR_FORM_MASK 0x00000f00
#define METEOR_DEV0 0x00001000
#define METEOR_DEV1 0x00002000
#define METEOR_DEV2 0x00004000
#define METEOR_DEV3 0x00008000
#define METEOR_DEV_MASK 0x0000f000
#define METEOR_RGB16 0x00010000
#define METEOR_RGB24 0x00020000
#define METEOR_YUV_PACKED 0x00040000
#define METEOR_YUV_PLANER 0x00080000
#define METEOR_WANT_EVEN 0x00100000 /* want even frame */
#define METEOR_WANT_ODD 0x00200000 /* want odd frame */
#define METEOR_WANT_MASK 0x00300000
#define METEOR_ONLY_EVEN_FIELDS 0x01000000
#define METEOR_ONLY_ODD_FIELDS 0x02000000
#define METEOR_ONLY_FIELDS_MASK 0x03000000
#define METEOR_YUV_422 0x04000000
#define METEOR_OUTPUT_FMT_MASK 0x040f0000
u_char saa7196_i2c[NUM_SAA7196_I2C_REGS]; /* saa7196 register values */
u_short fps; /* frames per second */
#ifdef DEVFS
void *devfs_token;
#endif
} meteor_reg_t;
static meteor_reg_t meteor[NMETEOR];
#define METPRI (PZERO+8)|PCATCH
/*---------------------------------------------------------
**
** Meteor PCI probe and initialization routines
**
**---------------------------------------------------------
*/
static char* met_probe (pcici_t tag, pcidi_t type);
static void met_attach(pcici_t tag, int unit);
static u_long met_count;
static struct pci_device met_device = {
"meteor",
met_probe,
met_attach,
&met_count
};
DATA_SET (pcidevice_set, met_device);
#if defined(METEOR_FreeBSD_210) /* XXX */
d_open_t meteor_open;
d_close_t meteor_close;
d_read_t meteor_read;
d_write_t meteor_write;
d_ioctl_t meteor_ioctl;
d_mmap_t meteor_mmap;
#else
static d_open_t meteor_open;
static d_close_t meteor_close;
static d_read_t meteor_read;
static d_write_t meteor_write;
static d_ioctl_t meteor_ioctl;
static d_mmap_t meteor_mmap;
#define CDEV_MAJOR 67
static struct cdevsw meteor_cdevsw =
{ meteor_open, meteor_close, meteor_read, meteor_write, /*67*/
meteor_ioctl, nostop, nullreset, nodevtotty,/* Meteor */
seltrue, meteor_mmap, NULL, "meteor", NULL, -1 };
#endif
static u_long saa7116_pci_default[NUM_SAA7116_PCI_REGS] = {
/* PCI Memory registers */
/* BITS Type Description */
/* 0x00 */ 0x00000000, /* 31:1 e*RW DMA 1 (Even)
0 RO 0x0 */
/* 0x04 */ 0x00000000, /* 31:2 e*RW DMA 2 (Even)
1:0 RO 0x0 */
/* 0x08 */ 0x00000000, /* 31:2 e*RW DMA 3 (Even)
1:0 RO 0x0 */
/* 0x0c */ 0x00000000, /* 31:1 o*RW DMA 1 (Odd)
0 RO 0x0 */
/* 0x10 */ 0x00000000, /* 31:2 o*RW DMA 2 (Odd)
1:0 RO 0x0 */
/* 0x14 */ 0x00000000, /* 31:2 o*RW DMA 3 (Odd)
1:0 RO 0x0 */
/* 0x18 */ 0x00000500, /* 15:2 e*RW Stride 1 (Even)
1:0 RO 0x0 */
/* 0x1c */ 0x00000000, /* 15:2 e*RW Stride 2 (Even)
1:0 RO 0x0 */
/* 0x20 */ 0x00000000, /* 15:2 e*RW Stride 3 (Even)
1:0 RO 0x0 */
/* 0x24 */ 0x00000500, /* 15:2 o*RW Stride 1 (Odd)
1:0 RO 0x0 */
/* 0x28 */ 0x00000000, /* 15:2 o*RW Stride 2 (Odd)
1:0 RO 0x0 */
/* 0x2c */ 0x00000000, /* 15:2 o*RW Stride 3 (Odd)
1:0 RO 0x0 */
/* 0x30 */ 0xeeeeee01, /* 31:8 *RW Route (Even)
7:0 *RW Mode (Even) */
/* 0x34 */ 0xeeeeee01, /* 31:8 *RW Route (Odd)
7:0 *RW Mode (Odd) */
/* 0x38 */ 0x00200020, /* 22:16 *RW FIFO Trigger Planer Mode,
6:0 *RW FIFO Trigger Packed Mode */
/* 0x3c */ 0x00000107, /* 9:8 *RW Reserved (0x0)
2 *RW Field Toggle
1 *RW Reserved (0x1)
0 *RW Reserved (0x1) */
/* 0x40 */ 0x000000c0, /* 15 *RW Range Enable
14 *RW Corrupt Disable
11 *RR Address Error (Odd)
10 *RR Address Error (Even)
9 *RR Field Corrupt (Odd)
8 *RR Field Corrupt (Even)
7 *RW Fifo Enable
6 *RW VRSTN#
5 *RR Field Done (Odd)
4 *RR Field Done (Even)
3 *RS Single Field Capture (Odd)
2 *RS Single Field Capture (Even)
1 *RW Capture (ODD) Continous
0 *RW Capture (Even) Continous */
/* 0x44 */ 0x00000000, /* 7:0 *RW Retry Wait Counter */
/* 0x48 */ 0x00000307, /* 10 *RW Interrupt mask, start of field
9 *RW Interrupt mask, end odd field
8 *RW Interrupt mask, end even field
2 *RR Interrupt status, start of field
1 *RR Interrupt status, end of odd
0 *RR Interrupt status, end of even */
/* 0x4c */ 0x00000001, /* 31:0 *RW Field Mask (Even) continous */
/* 0x50 */ 0x00000001, /* 31:0 *RW Field Mask (Odd) continous */
/* 0x54 */ 0x00000000, /* 20:16 *RW Mask Length (Odd)
4:0 *RW Mask Length (Even) */
/* 0x58 */ 0x0005007c, /* 22:16 *RW FIFO almost empty
6:0 *RW FIFO almost full */
/* 0x5c */ 0x461e1e0f, /* 31:24 *RW I2C Phase 4
23:16 *RW I2C Phase 3
15:8 *RW I2C Phase 2
7:0 *RW I2C Phase 1 */
/* 0x60 */ 0x00000300, /* 31:24 *RO I2C Read Data
23:16 **RW I2C Auto Address
11 RO I2C SCL Input
10 RO I2C SDA Input
9 RR I2C Direct Abort
8 RR I2C Auto Abort
3 RW I2C SCL Output
2 RW I2C SDA Output
1 RW I2C Bypass
0 RW I2C Auto Enable */
/* 0x64 */ 0x00000000, /* 24 RS I2C New Cycle
23:16 **RW I2C Direct Address
15:8 **RW I2C Direct Sub-address
7:0 **RW I2C Direct Write Address */
/* 0x68 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 1 (Even)
23:16 **RW I2C Auto Data 1 (Even)
15:8 **RW I2C Auto Sub-address 0 (Even)
7:0 **RW I2C Auto Data 0 (Even) */
/* 0x6c */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 3 (Even)
23:16 **RW I2C Auto Data 3 (Even)
15:8 **RW I2C Auto Sub-address 2 (Even)
7:0 **RW I2C Auto Data 2 (Even) */
/* 0x70 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 5 (Even)
23:16 **RW I2C Auto Data 5 (Even)
15:8 **RW I2C Auto Sub-address 4 (Even)
7:0 **RW I2C Auto Data 4 (Even) */
/* 0x74 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 7 (Even)
23:16 **RW I2C Auto Data 7 (Even)
15:8 **RW I2C Auto Sub-address 6 (Even)
7:0 **RW I2C Auto Data 6 (Even) */
/* 0x78 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 1 (Odd)
23:16 **RW I2C Auto Data 1 (Odd)
15:8 **RW I2C Auto Sub-address 0 (Odd)
7:0 **RW I2C Auto Data 0 (Odd) */
/* 0x7c */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 3 (Odd)
23:16 **RW I2C Auto Data 3 (Odd)
15:8 **RW I2C Auto Sub-address 2 (Odd)
7:0 **RW I2C Auto Data 2 (Odd) */
/* 0x80 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 5 (Odd)
23:16 **RW I2C Auto Data 5 (Odd)
15:8 **RW I2C Auto Sub-address 4 (Odd)
7:0 **RW I2C Auto Data 4 (Odd) */
/* 0x84 */ 0x00000000, /* 31:24 **RW I2C Auto Sub-address 7 (Odd)
23:16 **RW I2C Auto Data 7 (Odd)
15:8 **RW I2C Auto Sub-address 6 (Odd)
7:0 **RW I2C Auto Data 6 (Odd) */
/* 0x88 */ 0x00000000, /* 23:16 **RW I2C Register Enable (Odd)
7:0 **RW I2C Register Enable (Even) */
/* 0x8c */ 0x00000000, /* 23:2 e*RW DMA End (Even)
1:0 RO 0x0 */
/* 0x90 */ 0x00000000 /* 23:2 e*RW DMA End (Odd)
1:0 RO 0x0 */
};
static u_char saa7196_i2c_default[NUM_SAA7196_I2C_REGS] = {
/* SAA7196 I2C bus control */
/* BITS Function */
/* 00 */ 0x50, /* 7:0 Increment Delay */
/* 01 */ 0x30, /* 7:0 Horizontal Sync Begin for 50hz */
/* 02 */ 0x00, /* 7:0 Horizontal Sync Stop for 50hz */
/* 03 */ 0xe8, /* 7:0 Horizontal Sync Clamp Start for 50hz */
/* 04 */ 0xb6, /* 7:0 Horizontal Sync Clamp Stop for 50hz */
/* 05 */ 0xf4, /* 7:0 Horizontal Sync Start after PH1 for 50hz */
/* 06 */ 0x46, /* 7 Input mode =0 CVBS, =1 S-Video
6 Pre filter
5:4 Aperture Bandpass characteristics
3:2 Coring range for high freq
1:0 Aperture bandpass filter weights */
/* 07 */ 0x00, /* 7:0 Hue */
/* 08 */ 0x7f, /* 7:3 Colour-killer threshold QAM (PAL, NTSC) */
/* 09 */ 0x7f, /* 7:3 Colour-killer threshold SECAM */
/* 0a */ 0x7f, /* 7:0 PAL switch sensitivity */
/* 0b */ 0x7f, /* 7:0 SECAM switch sensitivity */
/* 0c */ 0x40, /* 7 Colour-on bit
6:5 AGC filter */
/* 0d */ 0x84, /* 7 VTR/TV mode bit = 1->VTR mode
3 Realtime output mode select bit
2 HREF position select
1 Status byte select
0 SECAM mode bit */
/* 0e */ 0x38, /* 7 Horizontal clock PLL
5 Select interal/external clock source
4 Output enable of Horizontal/Vertical sync
3 Data output YUV enable
2 S-VHS bit
1 GPSW2
0 GPSW1 */
/* 0f */ 0x50, /* 7 Automatic Field detection
6 Field Select 0 = 50hz, 1=60hz
5 SECAM cross-colour reduction
4 Enable sync and clamping pulse
3:1 Luminance delay compensation */
/* 10 */ 0x00, /* 2 Select HREF Position
1:0 Vertical noise reduction */
/* 11 */ 0x2c, /* 7:0 Chrominance gain conrtol for QAM */
/* 12 */ 0x40, /* 7:0 Chrominance saturation control for VRAM port */
/* 13 */ 0x40, /* 7:0 Luminance contract control for VRAM port */
/* 14 */ 0x34, /* 7:0 Horizontal sync begin for 60hz */
#ifdef notdef
/* 15 */ 0x0c, /* 7:0 Horizontal sync stop for 60hz */
/* 16 */ 0xfb, /* 7:0 Horizontal clamp begin for 60hz */
/* 17 */ 0xd4, /* 7:0 Horizontal clamp stop for 60hz */
/* 18 */ 0xec, /* 7:0 Horizontal sync start after PH1 for 60hz */
#else
0x0a, 0xf4, 0xce, 0xf4,
#endif
/* 19 */ 0x80, /* 7:0 Luminance brightness control for VRAM port */
/* 1a */ 0x00,
/* 1b */ 0x00,
/* 1c */ 0x00,
/* 1d */ 0x00,
/* 1e */ 0x00,
/* 1f */ 0x00,
/* 20 */ 0x90, /* 7 ROM table bypass switch
6:5 Set output field mode
4 VRAM port outputs enable
3:2 First pixel position in VRO data
1:0 FIFO output register select */
/* 21 */ 0x80, /* 7:0 [7:0] Pixel number per line on output */
/* 22 */ 0x80, /* 7:0 [7:0] Pixel number per line on input */
/* 23 */ 0x03, /* 7:0 [7:0] Horizontal start position of scaling win*/
/* 24 */ 0x8a, /* 7:5 Horizontal decimation filter
4 [8] Horizontal start position of scaling win
3:2 [9:8] Pixel number per line on input
1:0 [9:8] Pixel number per line on output */
/* 25 */ 0xf0, /* 7:0 [7:0] Line number per output field */
/* 26 */ 0xf0, /* 7:0 [7:0] Line number per input field */
/* 27 */ 0x0f, /* 7:0 [7:0] Vertical start of scaling window */
/* 28 */ 0x80, /* 7 Adaptive filter switch
6:5 Vertical luminance data processing
4 [8] Vertical start of scaling window
3:2 [9:8] Line number per input field
1:0 [9:8] Line number per output field */
/* 29 */ 0x16, /* 7:0 [7:0] Vertical bypass start */
/* 2a */ 0x00, /* 7:0 [7:0] Vertical bypass count */
/* 2b */ 0x00, /* 4 [8] Vertical bypass start
2 [8] Vertical bypass count
0 Polarity, internally detected odd even flag */
/* 2c */ 0x80, /* 7:0 Set lower limit V for colour-keying */
/* 2d */ 0x7f, /* 7:0 Set upper limit V for colour-keying */
/* 2e */ 0x80, /* 7:0 Set lower limit U for colour-keying */
/* 2f */ 0x7f, /* 7:0 Set upper limit U for colour-keying */
/* 30 */ 0xbf /* 7 VRAM bus output format
6 Adaptive geometrical filter
5 Luminance limiting value
4 Monochrome and two's complement output data sel
3 Line quailifier flag
2 Pixel qualifier flag
1 Transparent data transfer
0 Extended formats enable bit */
};
/*
* i2c_write:
* Returns 0 Succesful completion.
* Returns 1 If transfer aborted or timeout occured.
*
*/
#define SAA7196_I2C_ADDR 0x40
#define I2C_WRITE 0x00
#define I2C_READ 0x01
#define SAA7116_IIC_NEW_CYCLE 0x1000000L
#define IIC_DIRECT_TRANSFER_ABORTED 0x0000200L
#define SAA7196_WRITE(mtr, reg, data) \
i2c_write(mtr, SAA7196_I2C_ADDR, I2C_WRITE, reg, data), \
mtr->saa7196_i2c[reg] = data
#define SAA7196_REG(mtr, reg) mtr->saa7196_i2c[reg]
#define SAA7196_READ(mtr) \
i2c_write(mtr, SAA7196_I2C_ADDR, I2C_READ, 0x0, 0x0)
static int
i2c_write(meteor_reg_t * mtr, u_char slave, u_char rw, u_char reg, u_char data)
{
register unsigned long wait_counter = 0x0001ffff;
register volatile u_long *iic_write_loc = (volatile u_long *)mtr->iic_virt_addr;
register int err = 0;
/* Write the data the the i2c write register */
*iic_write_loc = SAA7116_IIC_NEW_CYCLE |
(((u_long)slave|(u_long)rw) << 16) |
((u_long)reg << 8) | (u_long)data;
/* Wait until the i2c cycle is compeleted */
while((*iic_write_loc & SAA7116_IIC_NEW_CYCLE)) {
if(!wait_counter) break;
wait_counter--;
}
/* 1ffff should be enough delay time for the i2c cycle to complete */
if(!wait_counter) {
printf("meteor: saa7116 i2c %s transfer timeout 0x%x",
rw ? "read" : "write", *iic_write_loc);
err=1;
}
/* Check for error on direct write, clear if any */
if((*((volatile u_long *)mtr->stat_reg)) & IIC_DIRECT_TRANSFER_ABORTED){
printf("meteor: saa7116 i2c %s tranfer aborted",
rw ? "read" : "write" );
err= 1;
}
if(err) {
printf(" - reg=0x%x, value=0x%x.\n", reg, data);
}
return err;
}
static char*
met_probe (pcici_t tag, pcidi_t type)
{
switch (type) {
case 0x12238086ul: /* meteor */
return ("Matrox Meteor");
};
return ((char*)0);
}
/* interrupt handling routine
complete meteor_read() if using interrupts
*/
static void
meteor_intr(void *arg)
{
meteor_reg_t *mtr = (meteor_reg_t *) arg;
volatile u_long *cap = (volatile u_long *)mtr->capt_cntrl,
*base = (volatile u_long *)mtr->virt_baseaddr,
*stat = base + 18; /* mtr->virt_base + 0x48*/
u_long status = *stat,
cap_err = *cap & 0x00000f00,
#ifdef METEOR_CHECK_PCI_BUS
pci_err = pci_conf_read(mtr->tag,
PCI_COMMAND_STATUS_REG),
#endif
next_base = (u_long)(vtophys(mtr->bigbuf));
/*
* 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(!(mtr->flags & METEOR_CAP_MASK)) {
*cap &= 0x8ff0; /* disable future interrupts */
}
#ifdef METEOR_CHECK_PCI_BUS
/*
* Check for pci bus errors.
*/
#define METEOR_MASTER_ABORT 0x20000000
#define METEOR_TARGET_ABORT 0x10000000
if(pci_err & METEOR_MASTER_ABORT) {
printf("meteor_intr: pci bus master dma abort: 0x%x 0x%x.\n",
*base, *(base+3));
pci_conf_write(mtr->tag, PCI_COMMAND_STATUS_REG, pci_err);
}
if(pci_err & METEOR_TARGET_ABORT) {
printf("meteor_intr: pci bus target dma abort: 0x%x 0x%x.\n",
*base, *(base+3));
pci_conf_write(mtr->tag, PCI_COMMAND_STATUS_REG, pci_err);
}
#endif
/*
* Check for errors.
*/
if (cap_err) {
if (cap_err & 0x300) {
mtr->fifo_errors++ ; /* incrememnt fifo capture errors cnt */
printf("meteor: capture error");
printf(":%s FIFO overflow.\n", cap_err&0x0100? "even" : "odd");
}
if (cap_err & 0xc00) {
mtr->dma_errors++ ; /* increment DMA capture errors cnt */
printf("meteor: capture error");
printf(":%s DMA address.\n", cap_err&0x0400? "even" : "odd");
}
}
*cap |= 0x0f30; /* clear error and field done */
/*
* In synchronous capture mode we need to know what the address
* offset for the next field/frame will be. next_base holds the
* value for the even dma buffers (for odd, one must add stride).
*/
if((mtr->flags & METEOR_SYNCAP) && !mtr->synch_wait &&
(mtr->current < mtr->frames)) { /* could be !=, but < is safer */
/* next_base is initialized to mtr->bigbuf */
next_base += mtr->frame_size * mtr->current;
}
/*
* Count the field and clear the field flag.
*
* In single mode capture, clear the continuous capture mode.
*
* In synchronous capture mode, if we have room for another field,
* adjust DMA buffer pointers.
* When we are above the hi water mark (hiwat), mtr->synch_wait will
* be set and we will not bump the DMA buffer pointers. Thus, once
* we reach the hi water mark, the driver acts like a continuous mode
* capture on the mtr->current frame until we hit the low water
* mark (lowat). The user had the option of stopping or halting
* the capture if this is not the desired effect.
*/
if (status & 0x1) { /* even field */
mtr->even_fields_captured++;
mtr->flags &= ~METEOR_WANT_EVEN;
if((mtr->flags & METEOR_SYNCAP) && !mtr->synch_wait) {
*base = next_base;
/* XXX should add adjustments for YUV_422 & PLANER */
}
}
if (status & 0x2) { /* odd field */
mtr->odd_fields_captured++;
mtr->flags &= ~METEOR_WANT_ODD;
if((mtr->flags & METEOR_SYNCAP) && !mtr->synch_wait) {
*(base+3) = next_base + *(base+6);
/* XXX should add adjustments for YUV_422 & PLANER */
}
}
/*
* If we have a complete frame.
*/
if(!(mtr->flags & METEOR_WANT_MASK)) {
mtr->frames_captured++;
/*
* Wake up the user in single capture mode.
*/
if(mtr->flags & METEOR_SINGLE)
wakeup((caddr_t)mtr);
/*
* If the user requested to be notified via signal,
* let them know the frame is complete.
*/
if(mtr->proc && mtr->signal)
psignal(mtr->proc, mtr->signal);
/*
* Reset the want flags if in continuous or
* synchronous capture mode.
*/
if(mtr->flags & (METEOR_CONTIN|METEOR_SYNCAP)) {
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
mtr->flags |= METEOR_WANT_ODD;
break;
case METEOR_ONLY_EVEN_FIELDS:
mtr->flags |= METEOR_WANT_EVEN;
break;
default:
mtr->flags |= METEOR_WANT_MASK;
break;
}
}
/*
* Special handling for synchronous capture mode.
*/
if(mtr->flags & METEOR_SYNCAP) {
struct meteor_mem *mm = mtr->mem;
/*
* Mark the current frame as active. It is up to
* the user to clear this, but we will clear it
* for the user for the current frame being captured
* if we are within the water marks (see below).
*/
mm->active |= 1 << (mtr->current - 1);
/*
* Since the user can muck with these values, we need
* to check and see if they are sane. If they don't
* pass the sanity check, disable the capture mode.
* This is rather rude, but then so was the user.
*
* Do we really need all of this or should we just
* eliminate the possiblity of allowing the
* user to change hi and lo water marks while it
* is running? XXX
*/
if(mm->num_active_bufs < 0 ||
mm->num_active_bufs > mtr->frames ||
mm->lowat < 1 || mm->lowat >= mtr->frames ||
mm->hiwat < 1 || mm->hiwat >= mtr->frames ||
mm->lowat > mm->hiwat ) {
*cap &= 0x8ff0;
mtr->flags &= ~(METEOR_SYNCAP|METEOR_WANT_MASK);
} else {
/*
* Ok, they are sane, now we want to
* check the water marks.
*/
if(mm->num_active_bufs <= mm->lowat)
mtr->synch_wait = 0;
if(mm->num_active_bufs >= mm->hiwat)
mtr->synch_wait = 1;
/*
* Clear the active frame bit for this frame
* and advance the counters if we are within
* the banks of the water marks.
*/
if(!mtr->synch_wait) {
mm->active &= ~(1 << mtr->current);
mtr->current++;
if(mtr->current > mtr->frames)
mtr->current = 1;
mm->num_active_bufs++;
}
}
}
}
*stat |= 0x7; /* clear interrupt status */
}
static void
set_fps(meteor_reg_t *mtr, u_short fps)
{
volatile u_long *field_mask_even =
(volatile u_long *)mtr->virt_baseaddr + 0x4c;
volatile u_long *field_mask_odd = field_mask_even + 1;
volatile u_long *field_mask_length = field_mask_odd + 1;
/*
* A little sanity checking first...
*/
if(fps < 1) fps = 1;
if(fps > 30) fps = 30;
mtr->fps = fps;
/*
* Set the fps using the mask/length.
*/
/* XXX we need some code to actually do this here... */
}
/*
* Initialize the capture card to NTSC RGB 16 640x480
*/
static void
meteor_init ( meteor_reg_t *mtr )
{
volatile u_long *vbase_addr;
int i;
*((volatile u_long *)(mtr->capt_cntrl)) = 0x00000040L;
vbase_addr = (volatile u_long *) mtr->virt_baseaddr;
for (i= 0 ; i < NUM_SAA7116_PCI_REGS; i++)
*vbase_addr++ = saa7116_pci_default[i];
for (i = 0; i < NUM_SAA7196_I2C_REGS; i++) {
SAA7196_WRITE(mtr, i, saa7196_i2c_default[i]);
}
set_fps(mtr, 30);
}
static void met_attach(pcici_t tag, int unit)
{
#ifdef METEOR_IRQ /* from the meteor.h file */
u_long old_irq,new_irq;
#endif METEOR_IRQ /* from the meteor.h file */
meteor_reg_t *mtr;
vm_offset_t buf;
u_long latency;
if (unit >= NMETEOR) {
printf("meteor_attach: mx%d: invalid unit number\n");
return ;
}
mtr = &meteor[unit];
pci_map_mem(tag, 0x10, &(mtr->virt_baseaddr),
&(mtr->phys_baseaddr));
/* IIC addres at 0x64 offset bytes */
mtr->capt_cntrl = mtr->virt_baseaddr + 0x40;
mtr->stat_reg = mtr->virt_baseaddr + 0x60;
mtr->iic_virt_addr = mtr->virt_baseaddr + 0x64;
#ifdef METEOR_IRQ /* from the meteor.h file */
old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
pci_conf_write(tag, PCI_INTERRUPT_REG, METEOR_IRQ);
new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG);
printf("meteor_attach: irq changed from %d to %d\n", (old_irq & 0xff),
(new_irq & 0xff));
#endif METEOR_IRQ
/* set latency timer */
#define PCI_LATENCY_TIMER 0x0c
#define DEF_LATENCY_VALUE 32 /* is this value ok? */
latency = pci_conf_read(tag, PCI_LATENCY_TIMER);
latency = (latency >> 8) & 0xff;
if(bootverbose) {
if(latency)
printf("meteor0: PCI bus latency is");
else
printf("meteor0: PCI bus latency was 0 changing to");
}
if(!latency) {
latency = DEF_LATENCY_VALUE;
pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8);
}
if(bootverbose) {
printf(" %d.\n", latency);
}
meteor_init( mtr ); /* set up saa7116 and saa7196 chips */
mtr->tag = tag;
/* setup the interrupt handling routine */
pci_map_int (tag, meteor_intr, (void*) mtr, &net_imask);
/* 640*240*3 round up to nearest pag e*/
if(METEOR_ALLOC)
buf = vm_page_alloc_contig(METEOR_ALLOC,
0x100000, 0xffffffff, PAGE_SIZE);
else
buf = NULL;
if(bootverbose) {
printf("meteor0: buffer size %d, addr 0x%x\n", METEOR_ALLOC,
buf);
}
mtr->bigbuf = buf;
mtr->alloc_pages = METEOR_ALLOC_PAGES;
if(buf != NULL) {
bzero((caddr_t) buf, METEOR_ALLOC);
buf = vtophys(buf);
*((volatile u_long *) mtr->virt_baseaddr) = buf;
/* 640x480 RGB 16 */
*((volatile u_long *) mtr->virt_baseaddr + 3) = buf + 0x500;
*((volatile u_long *) mtr->virt_baseaddr + 36) =
*((volatile u_long *) mtr->virt_baseaddr + 35) = buf +
METEOR_ALLOC;
}
mtr->flags = METEOR_INITALIZED | METEOR_NTSC | METEOR_DEV0 |
METEOR_RGB16;
/* 1 frame of 640x480 RGB 16 */
mtr->cols = 640;
mtr->rows = 480;
mtr->depth = 2; /* two bytes per pixel */
mtr->frames = 1; /* one frame */
#ifdef DEVFS
mtr->devfs_token = devfs_add_devsw( "/", "meteor", &meteor_cdevsw, unit,
DV_CHR, 0, 0, 0600);
#endif
}
static void
meteor_reset(meteor_reg_t * const sc)
{
}
/*---------------------------------------------------------
**
** Meteor character device driver routines
**
**---------------------------------------------------------
*/
#define UNIT(x) ((x) & 0x07)
int
meteor_open(dev_t dev, int flags, int fmt, struct proc *p)
{
meteor_reg_t *mtr;
int unit;
int i;
unit = UNIT(minor(dev));
if (unit >= NMETEOR) /* unit out of range */
return(ENXIO);
mtr = &(meteor[unit]);
if (!(mtr->flags & METEOR_INITALIZED)) /* device not found */
return(ENXIO);
if (mtr->flags & METEOR_OPEN) /* device is busy */
return(EBUSY);
mtr->flags |= METEOR_OPEN;
/*
* Make sure that the i2c regs are set the same for each open.
*/
for(i=0; i< NUM_SAA7196_I2C_REGS; i++) {
SAA7196_WRITE(mtr, i, saa7196_i2c_default[i]);
}
mtr->fifo_errors = 0;
mtr->dma_errors = 0;
mtr->frames_captured = 0;
mtr->even_fields_captured = 0;
mtr->odd_fields_captured = 0;
mtr->proc = (struct proc *)0;
set_fps(mtr, 30);
return(0);
}
int
meteor_close(dev_t dev, int flags, int fmt, struct proc *p)
{
meteor_reg_t *mtr;
int unit;
int temp;
unit = UNIT(minor(dev));
if (unit >= NMETEOR) /* unit out of range */
return(ENXIO);
mtr = &(meteor[unit]);
mtr->flags &= ~METEOR_OPEN;
if(mtr->flags & METEOR_SINGLE)
/* this should not happen, the read capture
should have completed or in the very least
recieved a signal before close is called. */
wakeup((caddr_t)mtr); /* continue read */
/*
* Turn off capture mode.
*/
*((volatile u_long *) mtr->capt_cntrl) = 0x8ff0;
mtr->flags &= ~(METEOR_CAP_MASK|METEOR_WANT_MASK);
#ifdef METEOR_DEALLOC_PAGES
if (mtr->bigbuf != NULL) {
kmem_free(kernel_map,mtr->bigbuf,(mtr->alloc_pages*PAGE_SIZE));
mtr->bigbuf = NULL;
mtr->alloc_pages = 0;
}
#else
#ifdef METEOR_DEALLOC_ABOVE
if (mtr->bigbuf != NULL && mtr->alloc_pages > METEOR_DEALLOC_ABOVE) {
temp = METEOR_DEALLOC_ABOVE - mtr->alloc_pages;
kmem_free(kernel_map,
mtr->bigbuf+((mtr->alloc_pages - temp) * PAGE_SIZE),
(temp * PAGE_SIZE));
mtr->alloc_pages = METEOR_DEALLOC_ABOVE;
}
#endif
#endif
return(0);
}
static void
start_capture(meteor_reg_t *mtr, unsigned type)
{
volatile u_long *cap = (volatile u_long *)mtr->capt_cntrl;
volatile u_long *p =(volatile u_long *)mtr->virt_baseaddr;
#ifdef RANGE_BUG_FIXED
#define RANGE_ENABLE 0x8000
#else
#define RANGE_ENABLE 0x0000
#endif
mtr->flags |= type;
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_EVEN_FIELDS:
mtr->flags |= METEOR_WANT_EVEN;
if(type == METEOR_SINGLE)
*cap = 0x0ff4 | RANGE_ENABLE ;
else
*cap = 0x0ff1 | RANGE_ENABLE;
break;
case METEOR_ONLY_ODD_FIELDS:
mtr->flags |= METEOR_WANT_ODD;
if(type == METEOR_SINGLE)
*cap = 0x0ff8 | RANGE_ENABLE;
else
*cap = 0x0ff2 | RANGE_ENABLE;
break;
default:
mtr->flags |= METEOR_WANT_MASK;
if(type == METEOR_SINGLE)
*cap = 0x0ffc | RANGE_ENABLE;
else
*cap = 0x0ff3 | RANGE_ENABLE;
break;
}
}
int
meteor_read(dev_t dev, struct uio *uio, int ioflag)
{
meteor_reg_t *mtr;
int unit;
int status;
int count;
unit = UNIT(minor(dev));
if (unit >= NMETEOR) /* unit out of range */
return(ENXIO);
mtr = &(meteor[unit]);
if (mtr->bigbuf == NULL)/* no frame buffer allocated (ioctl failed) */
return(ENOMEM);
if (mtr->flags & METEOR_CAP_MASK)
return(EIO); /* already capturing */
count = mtr->rows * mtr->cols * mtr->depth;
if (uio->uio_iov->iov_len < count)
return(EINVAL);
/* Start capture */
start_capture(mtr, METEOR_SINGLE);
status=tsleep((caddr_t)mtr, METPRI, "capturing", 0);
if (!status) /* successful capture */
status = uiomove((caddr_t)mtr->bigbuf, count, uio);
else
printf ("meteor_read: tsleep error %d\n", status);
mtr->flags &= ~(METEOR_SINGLE | METEOR_WANT_MASK);
return(status);
}
int
meteor_write(dev_t dev, struct uio *uio, int ioflag)
{
return(0);
}
int
meteor_ioctl(dev_t dev, int cmd, caddr_t arg, int flag, struct proc *pr)
{
int error;
int unit;
int temp;
meteor_reg_t *mtr;
struct meteor_counts *cnt;
struct meteor_geomet *geo;
struct meteor_mem *mem;
struct meteor_capframe *frame;
volatile u_long *p;
vm_offset_t buf;
error = 0;
if (!arg) return(EINVAL);
unit = UNIT(minor(dev));
if (unit >= NMETEOR) /* unit out of range */
return(ENXIO);
mtr = &(meteor[unit]);
switch (cmd) {
case METEORSFPS:
set_fps(mtr, *(u_short *)arg);
break;
case METEORGFPS:
*(u_short *)arg = mtr->fps;
break;
case METEORSSIGNAL:
mtr->signal = *(int *) arg;
mtr->proc = pr;
break;
case METEORGSIGNAL:
*(int *)arg = mtr->signal;
break;
case METEORSTATUS: /* get 7196 status */
temp = 0;
SAA7196_WRITE(mtr, 0x0d, SAA7196_REG(mtr, 0x0d) | 0x02);
SAA7196_READ(mtr);
temp |= ((*((volatile u_long *)mtr->stat_reg)) & 0xff000000L) >> 24;
SAA7196_WRITE(mtr, 0x0d, SAA7196_REG(mtr, 0x0d) & 0x02);
SAA7196_READ(mtr);
temp |= ((*((volatile u_long *)mtr->stat_reg)) & 0xff000000L) >> 16;
*(u_short *)arg = temp;
break;
case METEORSHUE: /* set hue */
SAA7196_WRITE(mtr, 0x07, *(char *)arg);
break;
case METEORGHUE: /* get hue */
*(char *)arg = SAA7196_REG(mtr, 0x07);
break;
case METEORSCHCV: /* set chrominance gain */
SAA7196_WRITE(mtr, 0x11, *(char *)arg);
break;
case METEORGCHCV: /* get chrominance gain */
*(char *)arg = SAA7196_REG(mtr, 0x11);
break;
case METEORSINPUT: /* set input device */
switch(*(unsigned long *)arg & METEOR_DEV_MASK) {
case 0: /* default */
case METEOR_INPUT_DEV0:
mtr->flags = (mtr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV0;
SAA7196_WRITE(mtr, 0x0e,
(SAA7196_REG(mtr, 0x0e) & ~0x3) | 0x0);
break;
case METEOR_INPUT_DEV1:
mtr->flags = (mtr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV1;
SAA7196_WRITE(mtr, 0x0e,
(SAA7196_REG(mtr, 0x0e) & ~0x3) | 0x1);
break;
case METEOR_INPUT_DEV2:
mtr->flags = (mtr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV2;
SAA7196_WRITE(mtr, 0x0e,
(SAA7196_REG(mtr, 0x0e) & ~0x3) | 0x2);
break;
case METEOR_INPUT_DEV3:
mtr->flags = (mtr->flags & ~METEOR_DEV_MASK)
| METEOR_DEV3;
SAA7196_WRITE(mtr, 0x0e,
(SAA7196_REG(mtr, 0x0e) | 0x3));
break;
default:
return EINVAL;
}
break;
case METEORGINPUT: /* get input device */
*(u_long *)arg = mtr->flags & METEOR_DEV_MASK;
break;
case METEORSFMT: /* set input format */
switch(*(unsigned long *)arg & METEOR_FORM_MASK ) {
case 0: /* default */
case METEOR_FMT_NTSC:
mtr->flags = (mtr->flags & ~METEOR_FORM_MASK) |
METEOR_NTSC;
SAA7196_WRITE(mtr, 0x0d,
(SAA7196_REG(mtr, 0x0d) & ~0x01));
SAA7196_WRITE(mtr, 0x0f,
(SAA7196_REG(mtr, 0x0f) & ~0xe0) | 0x40);
SAA7196_WRITE(mtr, 0x22, 0x80);
SAA7196_WRITE(mtr, 0x24,
(SAA7196_REG(mtr, 0x24) & ~0x0c) | 0x08);
SAA7196_WRITE(mtr, 0x26, 0xf0);
SAA7196_WRITE(mtr, 0x28,
(SAA7196_REG(mtr, 0x28) & ~0x0c)) ;
break;
case METEOR_FMT_PAL:
mtr->flags = (mtr->flags & ~METEOR_FORM_MASK) |
METEOR_PAL;
SAA7196_WRITE(mtr, 0x0d,
(SAA7196_REG(mtr, 0x0d) & ~0x01));
SAA7196_WRITE(mtr, 0x0f,
(SAA7196_REG(mtr, 0x0f) & ~0xe0));
SAA7196_WRITE(mtr, 0x22, 0x00);
SAA7196_WRITE(mtr, 0x24,
(SAA7196_REG(mtr, 0x24) | 0x0c));
SAA7196_WRITE(mtr, 0x26, 0x20);
SAA7196_WRITE(mtr, 0x28,
(SAA7196_REG(mtr, 0x28) & ~0x0c) | 0x04) ;
break;
case METEOR_FMT_SECAM:
mtr->flags = (mtr->flags & ~METEOR_FORM_MASK) |
METEOR_SECAM;
SAA7196_WRITE(mtr, 0x0d,
(SAA7196_REG(mtr, 0x0d) & ~0x01) | 0x1);
SAA7196_WRITE(mtr, 0x0f,
(SAA7196_REG(mtr, 0x0f) & ~0xe0) | 0x20);
SAA7196_WRITE(mtr, 0x22, 0x00);
SAA7196_WRITE(mtr, 0x24,
(SAA7196_REG(mtr, 0x24) | 0x0c));
SAA7196_WRITE(mtr, 0x26, 0x20);
SAA7196_WRITE(mtr, 0x28,
(SAA7196_REG(mtr, 0x28) & ~0x0c) | 0x04) ;
break;
case METEOR_FMT_AUTOMODE:
mtr->flags = (mtr->flags & ~METEOR_FORM_MASK) |
METEOR_AUTOMODE;
SAA7196_WRITE(mtr, 0x0d,
(SAA7196_REG(mtr, 0x0d) & ~0x01));
SAA7196_WRITE(mtr, 0x0f,
(SAA7196_REG(mtr, 0x0f) & ~0xe0) | 0x80);
break;
default:
return EINVAL;
}
break;
case METEORGFMT: /* get input format */
*(u_long *)arg = mtr->flags & METEOR_FORM_MASK;
break;
case METEORCAPTUR:
temp = mtr->flags;
switch (*(int *) arg) {
case METEOR_CAP_SINGLE:
if (mtr->bigbuf==NULL) /* no frame buffer allocated */
return(ENOMEM);
if (temp & METEOR_CAP_MASK)
return(EIO); /* already capturing */
start_capture(mtr, METEOR_SINGLE);
/* wait for capture to complete */
error=tsleep((caddr_t)mtr, METPRI, "capturing", 0);
if(error)
printf("meteor_ioctl: tsleep error %d\n",
error);
mtr->flags &= ~(METEOR_SINGLE|METEOR_WANT_MASK);
break;
case METEOR_CAP_CONTINOUS:
if (mtr->bigbuf==NULL) /* no frame buffer allocated */
return(ENOMEM);
if (temp & METEOR_CAP_MASK)
return(EIO); /* already capturing */
start_capture(mtr, METEOR_CONTIN);
break;
case METEOR_CAP_STOP_CONT:
if (mtr->flags & METEOR_CONTIN) {
/* turn off capture */
*((volatile u_long *) mtr->capt_cntrl) = 0x8ff0;
mtr->flags &= ~(METEOR_CONTIN|METEOR_WANT_MASK);
}
break;
default:
error = EINVAL;
break;
}
break;
case METEORCAPFRM:
frame = (struct meteor_capframe *) arg;
if (!frame)
return(EINVAL);
switch (frame->command) {
case METEOR_CAP_N_FRAMES:
if (mtr->flags & METEOR_CAP_MASK)
return(EIO);
if (mtr->flags & (METEOR_YUV_PLANER | METEOR_YUV_422)) /* XXX*/
return(EINVAL); /* should fix intr so we allow these */
if (mtr->bigbuf == NULL)
return(ENOMEM);
if ((mtr->frames < 2) ||
(frame->lowat < 1 || frame->lowat >= mtr->frames) ||
(frame->hiwat < 1 || frame->hiwat >= mtr->frames) ||
(frame->lowat > frame->hiwat))
return(EINVAL);
/* meteor_mem structure is on the page after the data */
mem = mtr->mem = (struct meteor_mem *) (mtr->bigbuf +
((mtr->rows*mtr->cols * mtr->depth *
mtr->frames+PAGE_SIZE-1)/PAGE_SIZE)*PAGE_SIZE);
mtr->current = 1;
mtr->synch_wait = 0;
mem->num_bufs = mtr->frames;
mem->frame_size=
mtr->frame_size = mtr->rows * mtr->cols * mtr->depth;
/* user and kernel change these */
mem->lowat = frame->lowat;
mem->hiwat = frame->hiwat;
mem->active = 0;
mem->num_active_bufs = 0;
/* Start capture */
start_capture(mtr, METEOR_SYNCAP);
break;
case METEOR_CAP_STOP_FRAMES:
if (mtr->flags & METEOR_SYNCAP) {
/* turn off capture */
*((volatile u_long *) mtr->capt_cntrl) = 0x8ff0;
mtr->flags &= ~(METEOR_SYNCAP|METEOR_WANT_MASK);
}
break;
case METEOR_HALT_N_FRAMES:
if(mtr->flags & METEOR_SYNCAP) {
*((volatile u_long *) mtr->capt_cntrl) = 0x8ff0;
mtr->flags &= ~(METEOR_WANT_MASK);
}
break;
case METEOR_CONT_N_FRAMES:
if(!(mtr->flags & METEOR_SYNCAP)) {
error = EINVAL;
break;
}
start_capture(mtr, METEOR_SYNCAP);
break;
default:
error = EINVAL;
break;
}
break;
case METEORSETGEO:
geo = (struct meteor_geomet *) arg;
/* 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("meteor ioctl: Geometry odd or even only.\n");
return EINVAL;
}
/* set/clear even/odd flags */
if(geo->oformat & METEOR_GEO_ODD_ONLY)
mtr->flags |= METEOR_ONLY_ODD_FIELDS;
else
mtr->flags &= ~METEOR_ONLY_ODD_FIELDS;
if(geo->oformat & METEOR_GEO_EVEN_ONLY)
mtr->flags |= METEOR_ONLY_EVEN_FIELDS;
else
mtr->flags &= ~METEOR_ONLY_EVEN_FIELDS;
/* can't change parameters while capturing */
if (mtr->flags & METEOR_CAP_MASK)
return(EBUSY);
if ((geo->columns & 0x3fe) != geo->columns) {
printf(
"meteor ioctl: %d: columns too large or not even.\n",
geo->columns);
error = EINVAL;
}
if (((geo->rows & 0x7fe) != geo->rows) ||
((geo->oformat & METEOR_GEO_FIELD_MASK) &&
((geo->rows & 0x3fe) != geo->rows)) ) {
printf(
"meteor ioctl: %d: rows too large or not even.\n",
geo->rows);
error = EINVAL;
}
if (geo->frames > 32) {
printf("meteor ioctl: too many frames.\n");
error = EINVAL;
}
if(error) return error;
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 = (temp + PAGE_SIZE -1)/PAGE_SIZE;
if (temp > mtr->alloc_pages) {
buf = vm_page_alloc_contig((temp*PAGE_SIZE),
0x100000, 0xffffffff, PAGE_SIZE);
if(buf != NULL) {
kmem_free(kernel_map, mtr->bigbuf,
(mtr->alloc_pages * PAGE_SIZE));
mtr->bigbuf = buf;
mtr->alloc_pages = temp;
printf(
"meteor_ioctl: Allocating %d bytes\n", temp*PAGE_SIZE);
} else {
printf(
"meteor_ioctl: couldn't allocate %d byte buffer.\n",
temp*PAGE_SIZE);
error = ENOMEM;
}
}
}
if(error) return error;
mtr->rows = geo->rows;
mtr->cols = geo->columns;
mtr->frames = geo->frames;
p = (volatile u_long *) mtr->virt_baseaddr;
buf = vtophys(mtr->bigbuf);
/* set defaults and end of buffer locations */
*(p+0) = buf; /* DMA 1 even */
*(p+1) = buf; /* DMA 2 even */
*(p+2) = buf; /* DMA 3 even */
*(p+3) = buf; /* DMA 1 odd */
*(p+4) = buf; /* DMA 2 odd */
*(p+5) = buf; /* DMA 3 odd */
*(p+6) = 0; /* Stride 1 even */
*(p+7) = 0; /* Stride 2 even */
*(p+8) = 0; /* Stride 3 even */
*(p+9) = 0; /* Stride 1 odd */
*(p+10) = 0; /* Stride 2 odd */
*(p+11) = 0; /* Stride 3 odd */
/* set end of DMA location, even/odd */
#ifdef RANGE_BUG_FIXED
*(p+35) = *(p+36) = buf + mtr->alloc_pages * PAGE_SIZE;
#else
/*
* There is a bug with the range end on the current
* 7116 chip. The 23rd bit is ignored and set to zero
* for some reason which makes range checking useless.
*/
*(p+35) = *(p+36) = 0;
#endif
switch (geo->oformat & METEOR_GEO_OUTPUT_MASK) {
case 0: /* default */
case METEOR_GEO_RGB16:
mtr->depth = 2;
mtr->flags &= ~METEOR_OUTPUT_FMT_MASK;
mtr->flags |= METEOR_RGB16;
/* recal stride and starting point */
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
*(p+3) = buf; /*dma 1 o */
SAA7196_WRITE(mtr, 0x20, 0xd0);
break;
case METEOR_ONLY_EVEN_FIELDS:
*(p+0) = buf; /*dma 1 e */
SAA7196_WRITE(mtr, 0x20, 0xf0);
break;
default: /* interlaced even/odd */
*(p+0) = buf;
*(p+3) = buf + mtr->cols * mtr->depth;
*(p+6) = *(p+9) = mtr->cols * mtr->depth;
SAA7196_WRITE(mtr, 0x20, 0x90);
break;
}
*(p+12) = *(p+13) = 0xeeeeee01; /* routes */
break;
case METEOR_GEO_RGB24:
mtr->depth = 4;
mtr->flags &= ~METEOR_OUTPUT_FMT_MASK;
mtr->flags |= METEOR_RGB24;
/* recal stride and starting point */
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
*(p+3) = buf; /*dma 1 o */
SAA7196_WRITE(mtr, 0x20, 0xd2);
break;
case METEOR_ONLY_EVEN_FIELDS:
*(p+0) = buf; /*dma 1 e */
SAA7196_WRITE(mtr, 0x20, 0xf2);
break;
default: /* interlaced even/odd */
*(p+0) = buf;
*(p+3) = buf + mtr->cols * mtr->depth;
*(p+6) = *(p+9) = mtr->cols * mtr->depth;
SAA7196_WRITE(mtr, 0x20, 0x92);
break;
}
*(p+12) = *(p+13) = 0x39393900; /* routes */
break;
case METEOR_GEO_YUV_PLANER:
mtr->depth = 2;
mtr->flags &= ~METEOR_OUTPUT_FMT_MASK;
mtr->flags |= METEOR_YUV_PLANER;
/* recal stride and starting point */
temp = mtr->rows * mtr->cols; /* compute frame size */
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
*(p+3) = buf; /* Y Odd */
*(p+4) = buf + temp; /* U Odd */
temp >>= 1;
*(p+5) = *(p+4) + temp; /* V Odd */
SAA7196_WRITE(mtr, 0x20, 0xd1);
break;
case METEOR_ONLY_EVEN_FIELDS:
*(p+0) = buf; /* Y Even */
*(p+1) = buf + temp; /* U Even */
temp >>= 1;
*(p+2) = *(p+1) + temp; /* V Even */
SAA7196_WRITE(mtr, 0x20, 0xf1);
break;
default: /* interlaced even/odd */
*(p+0) = buf; /* Y Even */
*(p+1) = buf + temp; /* U Even */
temp >>= 2;
*(p+2) = *(p+1) + temp; /* V Even */
*(p+3) = *(p+0) + mtr->cols; /* Y Odd */
*(p+4) = *(p+2) + temp; /* U Odd */
*(p+5) = *(p+4) + temp; /* V Odd */
*(p+6) = *(p+9) = mtr->cols; /* Y Stride */
SAA7196_WRITE(mtr, 0x20, 0x91);
break;
}
*(p+12) = *(p+13) = 0xaaaaffc1; /* routes */
break;
case METEOR_GEO_YUV_422:/* same as planer, different uv order */
mtr->depth = 2;
mtr->flags &= ~METEOR_OUTPUT_FMT_MASK;
mtr->flags |= METEOR_YUV_422;
temp = mtr->rows * mtr->cols; /* compute frame size */
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
*(p+3) = buf;
*(p+4) = buf + temp;
*(p+5) = *(p+4) + (temp >> 1);
SAA7196_WRITE(mtr, 0x20, 0xd1);
break;
case METEOR_ONLY_EVEN_FIELDS:
*(p+0) = buf;
*(p+1) = buf + temp;
*(p+2) = *(p+1) + (temp >> 1);
SAA7196_WRITE(mtr, 0x20, 0xf1);
break;
default: /* interlaced even/odd */
*(p+0) = buf; /* Y even */
*(p+1) = buf + temp; /* U even */
*(p+2) = *(p+1) + (temp >> 1); /* V even */
*(p+3) = *(p+0) + mtr->cols; /* Y odd */
temp = mtr->cols >> 1;
*(p+4) = *(p+1) + temp; /* U odd */
*(p+5) = *(p+2) + temp; /* V odd */
*(p+6) = *(p+9) = mtr->cols; /* Y stride */
*(p+7) = *(p+10) = temp; /* U stride */
*(p+8) = *(p+11) = temp; /* V stride */
SAA7196_WRITE(mtr, 0x20, 0x91);
break;
}
*(p+12) = *(p+13) = 0xaaaaffc1; /* routes */
break;
case METEOR_GEO_YUV_PACKED:
mtr->depth = 2;
mtr->flags &= ~METEOR_OUTPUT_FMT_MASK;
mtr->flags |= METEOR_YUV_PACKED;
/* recal stride and odd starting point */
switch(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
case METEOR_ONLY_ODD_FIELDS:
*(p+3) = buf;
SAA7196_WRITE(mtr, 0x20, 0xd1);
break;
case METEOR_ONLY_EVEN_FIELDS:
*(p+0) = buf;
SAA7196_WRITE(mtr, 0x20, 0xf1);
break;
default: /* interlaced even/odd */
*(p+0) = buf;
*(p+3) = buf + mtr->cols * mtr->depth;
*(p+6) = *(p+9) = mtr->cols * mtr->depth;
SAA7196_WRITE(mtr, 0x20, 0x91);
break;
}
*(p+12) = *(p+13) = 0xeeeeee41; /* routes */
break;
default:
error = EINVAL; /* invalid argument */
printf("meteor_ioctl: invalid output format\n");
break;
}
/* set cols */
SAA7196_WRITE(mtr, 0x21, mtr->cols & 0xff);
SAA7196_WRITE(mtr, 0x24,
((SAA7196_REG(mtr, 0x24) & ~0x03) |
((mtr->cols >> 8) & 0x03)));
/* set rows */
if(mtr->flags & METEOR_ONLY_FIELDS_MASK) {
SAA7196_WRITE(mtr, 0x25, ((mtr->rows) & 0xff));
SAA7196_WRITE(mtr, 0x28,
((SAA7196_REG(mtr, 0x28) & ~0x03) |
((mtr->rows >> 8) & 0x03)));
} else { /* Interlaced */
SAA7196_WRITE(mtr, 0x25, ((mtr->rows >> 1) & 0xff));
SAA7196_WRITE(mtr, 0x28,
((SAA7196_REG(mtr, 0x28) & ~0x03) |
((mtr->rows >> 9) & 0x03)));
}
/* set signed/unsigned chrominance */
SAA7196_WRITE(mtr, 0x30, (SAA7196_REG(mtr, 0x30) & ~0x10) |
((geo->oformat&METEOR_GEO_UNSIGNED)?0:0x10));
break;
case METEORGETGEO:
geo = (struct meteor_geomet *) arg;
geo->rows = mtr->rows;
geo->columns = mtr->cols;
geo->frames = mtr->frames;
geo->oformat = (mtr->flags & METEOR_OUTPUT_FMT_MASK) |
(mtr->flags & METEOR_ONLY_FIELDS_MASK) |
(SAA7196_REG(mtr, 0x30) & 0x10 ?
0:METEOR_GEO_UNSIGNED);
break;
case METEORSCOUNT: /* (re)set error counts */
cnt = (struct meteor_counts *) arg;
mtr->fifo_errors = cnt->fifo_errors;
mtr->dma_errors = cnt->dma_errors;
mtr->frames_captured = cnt->frames_captured;
mtr->even_fields_captured = cnt->even_fields_captured;
mtr->odd_fields_captured = cnt->odd_fields_captured;
break;
case METEORGCOUNT: /* get error counts */
cnt = (struct meteor_counts *) arg;
cnt->fifo_errors = mtr->fifo_errors;
cnt->dma_errors = mtr->dma_errors;
cnt->frames_captured = mtr->frames_captured;
cnt->even_fields_captured = mtr->even_fields_captured;
cnt->odd_fields_captured = mtr->odd_fields_captured;
break;
default:
printf("meteor_ioctl: invalid ioctl request\n");
error = ENOTTY;
break;
}
return(error);
}
int
meteor_mmap(dev_t dev, int offset, int nprot)
{
int unit;
meteor_reg_t *mtr;
unit = UNIT(minor(dev));
if (unit >= NMETEOR) /* at this point could this happen? */
return(-1);
mtr = &(meteor[unit]);
if(nprot & PROT_EXEC)
return -1;
if(offset >= mtr->alloc_pages * PAGE_SIZE)
return -1;
return i386_btop(vtophys(mtr->bigbuf) + offset);
}
#if !defined(METEOR_FreeBSD_210) /* XXX */
static meteor_devsw_installed = 0;
static void meteor_drvinit(void *unused)
{
dev_t dev;
if( ! meteor_devsw_installed ) {
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev,&meteor_cdevsw, NULL);
meteor_devsw_installed = 1;
}
}
SYSINIT(meteordev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,meteor_drvinit,NULL)
#endif
#endif /* NMETEOR > 0 */
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