patch-2.4.0-test7 linux/drivers/char/bttv-driver.c
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- Lines: 3273
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.0-test6/linux/drivers/char/bttv-driver.c
- Orig date:
Wed Aug 9 19:19:50 2000
diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/bttv-driver.c linux/drivers/char/bttv-driver.c
@@ -1,3272 +0,0 @@
-/*
- bttv - Bt848 frame grabber driver
-
- Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
- & Marcus Metzler (mocm@thp.uni-koeln.de)
- (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/malloc.h>
-#include <linux/mm.h>
-#include <linux/poll.h>
-#include <linux/pci.h>
-#include <linux/signal.h>
-#include <asm/io.h>
-#include <linux/ioport.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <linux/sched.h>
-#include <asm/segment.h>
-#include <linux/types.h>
-#include <linux/wrapper.h>
-#include <linux/interrupt.h>
-#include <linux/kmod.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#ifdef HACKING
-# include <linux/iobuf.h>
-#endif
-
-#include "bttv.h"
-#include "tuner.h"
-
-#define DEBUG(x) /* Debug driver */
-#define IDEBUG(x) /* Debug interrupt handler */
-#define MIN(a,b) (((a)>(b))?(b):(a))
-#define MAX(a,b) (((a)>(b))?(a):(b))
-
-
-static void bt848_set_risc_jmps(struct bttv *btv, int state);
-
-int bttv_num; /* number of Bt848s in use */
-struct bttv bttvs[BTTV_MAX];
-
-
-/* insmod args */
-MODULE_PARM(triton1,"i");
-MODULE_PARM(radio,"1-4i");
-MODULE_PARM(bigendian,"i");
-MODULE_PARM(fieldnr,"i");
-MODULE_PARM(bttv_verbose,"i");
-MODULE_PARM(bttv_debug,"i");
-MODULE_PARM(gbuffers,"i");
-MODULE_PARM(gbufsize,"i");
-
-MODULE_DESCRIPTION("bttv - v4l driver module for bt848/878 based cards");
-MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
-
-#if defined(__sparc__) || defined(__powerpc__)
-static unsigned int bigendian=1;
-#else
-static unsigned int bigendian=0;
-#endif
-static int triton1=0;
-static unsigned int radio[BTTV_MAX];
-static unsigned int fieldnr = 0;
-static unsigned int gbuffers = 2;
-static unsigned int gbufsize = BTTV_MAX_FBUF;
-unsigned int bttv_debug = 0;
-unsigned int bttv_verbose = 1;
-
-#define I2C_TIMING (0x7<<4)
-#define I2C_DELAY 10
-
-#define I2C_SET(CTRL,DATA) \
- { btwrite((CTRL<<1)|(DATA), BT848_I2C); udelay(I2C_DELAY); }
-#define I2C_GET() (btread(BT848_I2C)&1)
-
-#define BURSTOFFSET 76
-#define BTTV_ERRORS 5
-
-
-/*******************************/
-/* Memory management functions */
-/*******************************/
-
-#define MDEBUG(x) do { } while(0) /* Debug memory management */
-
-/* [DaveM] I've recoded most of this so that:
- * 1) It's easier to tell what is happening
- * 2) It's more portable, especially for translating things
- * out of vmalloc mapped areas in the kernel.
- * 3) Less unnecessary translations happen.
- *
- * The code used to assume that the kernel vmalloc mappings
- * existed in the page tables of every process, this is simply
- * not guarenteed. We now use pgd_offset_k which is the
- * defined way to get at the kernel page tables.
- */
-
-/* Given PGD from the address space's page table, return the kernel
- * virtual mapping of the physical memory mapped at ADR.
- */
-static inline unsigned long uvirt_to_kva(pgd_t *pgd, unsigned long adr)
-{
- unsigned long ret = 0UL;
- pmd_t *pmd;
- pte_t *ptep, pte;
-
- if (!pgd_none(*pgd)) {
- pmd = pmd_offset(pgd, adr);
- if (!pmd_none(*pmd)) {
- ptep = pte_offset(pmd, adr);
- pte = *ptep;
- if(pte_present(pte)) {
- ret = (unsigned long) page_address(pte_page(pte));
- ret |= (adr & (PAGE_SIZE - 1));
- }
- }
- }
- MDEBUG(printk("uv2kva(%lx-->%lx)", adr, ret));
- return ret;
-}
-
-static inline unsigned long uvirt_to_bus(unsigned long adr)
-{
- unsigned long kva, ret;
-
- kva = uvirt_to_kva(pgd_offset(current->mm, adr), adr);
- ret = virt_to_bus((void *)kva);
- MDEBUG(printk("uv2b(%lx-->%lx)", adr, ret));
- return ret;
-}
-
-static inline unsigned long kvirt_to_bus(unsigned long adr)
-{
- unsigned long va, kva, ret;
-
- va = VMALLOC_VMADDR(adr);
- kva = uvirt_to_kva(pgd_offset_k(va), va);
- ret = virt_to_bus((void *)kva);
- MDEBUG(printk("kv2b(%lx-->%lx)", adr, ret));
- return ret;
-}
-
-/* Here we want the physical address of the memory.
- * This is used when initializing the contents of the
- * area and marking the pages as reserved.
- */
-static inline unsigned long kvirt_to_pa(unsigned long adr)
-{
- unsigned long va, kva, ret;
-
- va = VMALLOC_VMADDR(adr);
- kva = uvirt_to_kva(pgd_offset_k(va), va);
- ret = __pa(kva);
- MDEBUG(printk("kv2pa(%lx-->%lx)", adr, ret));
- return ret;
-}
-
-static void * rvmalloc(signed long size)
-{
- void * mem;
- unsigned long adr, page;
-
- mem=vmalloc_32(size);
- if (mem)
- {
- memset(mem, 0, size); /* Clear the ram out, no junk to the user */
- adr=(unsigned long) mem;
- while (size > 0)
- {
- page = kvirt_to_pa(adr);
- mem_map_reserve(virt_to_page(__va(page)));
- adr+=PAGE_SIZE;
- size-=PAGE_SIZE;
- }
- }
- return mem;
-}
-
-static void rvfree(void * mem, signed long size)
-{
- unsigned long adr, page;
-
- if (mem)
- {
- adr=(unsigned long) mem;
- while (size > 0)
- {
- page = kvirt_to_pa(adr);
- mem_map_unreserve(virt_to_page(__va(page)));
- adr+=PAGE_SIZE;
- size-=PAGE_SIZE;
- }
- vfree(mem);
- }
-}
-
-
-
-/*
- * Create the giant waste of buffer space we need for now
- * until we get DMA to user space sorted out (probably 2.3.x)
- *
- * We only create this as and when someone uses mmap
- */
-
-static int fbuffer_alloc(struct bttv *btv)
-{
- if(!btv->fbuffer)
- btv->fbuffer=(unsigned char *) rvmalloc(gbuffers*gbufsize);
- else
- printk(KERN_ERR "bttv%d: Double alloc of fbuffer!\n",
- btv->nr);
- if(!btv->fbuffer)
- return -ENOBUFS;
- return 0;
-}
-
-
-static int __devinit init_bttv_i2c(struct bttv *btv)
-{
- /* i2c bit_adapter */
- memcpy(&btv->i2c_adap, &bttv_i2c_adap_template, sizeof(struct i2c_adapter));
- memcpy(&btv->i2c_algo, &bttv_i2c_algo_template, sizeof(struct i2c_algo_bit_data));
- memcpy(&btv->i2c_client, &bttv_i2c_client_template, sizeof(struct i2c_client));
-
- sprintf(btv->i2c_adap.name+strlen(btv->i2c_adap.name),
- " #%d", btv->nr);
- btv->i2c_algo.data = btv;
- btv->i2c_adap.data = btv;
- btv->i2c_adap.algo_data = &btv->i2c_algo;
- btv->i2c_client.adapter = &btv->i2c_adap;
-
- bttv_bit_setscl(btv,1);
- bttv_bit_setsda(btv,1);
-
- btv->i2c_ok = i2c_bit_add_bus(&btv->i2c_adap);
- return btv->i2c_ok;
-}
-
-
-/* ----------------------------------------------------------------------- */
-
-static void audio(struct bttv *btv, int mode, int no_irq_context)
-{
- btaor(bttv_tvcards[btv->type].gpiomask, ~bttv_tvcards[btv->type].gpiomask,
- BT848_GPIO_OUT_EN);
-
- switch (mode)
- {
- case AUDIO_MUTE:
- btv->audio|=AUDIO_MUTE;
- break;
- case AUDIO_UNMUTE:
- btv->audio&=~AUDIO_MUTE;
- mode=btv->audio;
- break;
- case AUDIO_OFF:
- mode=AUDIO_OFF;
- break;
- case AUDIO_ON:
- mode=btv->audio;
- break;
- default:
- btv->audio&=AUDIO_MUTE;
- btv->audio|=mode;
- break;
- }
- /* if audio mute or not in H-lock, turn audio off */
- if ((btv->audio&AUDIO_MUTE))
- mode=AUDIO_OFF;
- if ((mode == AUDIO_TUNER) && (btv->radio))
- mode = AUDIO_RADIO;
- btaor(bttv_tvcards[btv->type].audiomux[mode],
- ~bttv_tvcards[btv->type].gpiomask, BT848_GPIO_DATA);
- if (no_irq_context)
- bttv_call_i2c_clients(btv,AUDC_SET_INPUT,&(mode));
-}
-
-
-extern inline void bt848_dma(struct bttv *btv, uint state)
-{
- if (state)
- btor(3, BT848_GPIO_DMA_CTL);
- else
- btand(~3, BT848_GPIO_DMA_CTL);
-}
-
-
-/* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC*/
-
-/* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
- PLL_X = Reference pre-divider (0=1, 1=2)
- PLL_C = Post divider (0=6, 1=4)
- PLL_I = Integer input
- PLL_F = Fractional input
-
- F_input = 28.636363 MHz:
- PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
-*/
-
-static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
-{
- unsigned char fl, fh, fi;
-
- /* prevent overflows */
- fin/=4;
- fout/=4;
-
- fout*=12;
- fi=fout/fin;
-
- fout=(fout%fin)*256;
- fh=fout/fin;
-
- fout=(fout%fin)*256;
- fl=fout/fin;
-
- /*printk("0x%02x 0x%02x 0x%02x\n", fi, fh, fl);*/
- btwrite(fl, BT848_PLL_F_LO);
- btwrite(fh, BT848_PLL_F_HI);
- btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
-}
-
-static int set_pll(struct bttv *btv)
-{
- int i;
- unsigned long tv;
-
- if (!btv->pll.pll_crystal)
- return 0;
-
- if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
- /* no PLL needed */
- if (btv->pll.pll_current == 0) {
- /* printk ("bttv%d: PLL: is off\n",btv->nr); */
- return 0;
- }
- printk ("bttv%d: PLL: switching off\n",btv->nr);
- btwrite(0x00,BT848_TGCTRL);
- btwrite(0x00,BT848_PLL_XCI);
- btv->pll.pll_current = 0;
- return 0;
- }
-
- if (btv->pll.pll_ofreq == btv->pll.pll_current) {
- /* printk("bttv%d: PLL: no change required\n",btv->nr); */
- return 1;
- }
-
- if (bttv_verbose)
- printk("bttv%d: PLL: %d => %d ... ",btv->nr,
- btv->pll.pll_ifreq, btv->pll.pll_ofreq);
-
- set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
-
- /* Let other people run while the PLL stabilizes */
- tv=jiffies+HZ/10; /* .1 seconds */
- do
- {
- schedule();
- }
- while(time_before(jiffies,tv));
-
- for (i=0; i<100; i++)
- {
- if ((btread(BT848_DSTATUS)&BT848_DSTATUS_PLOCK))
- btwrite(0,BT848_DSTATUS);
- else
- {
- btwrite(0x08,BT848_TGCTRL);
- btv->pll.pll_current = btv->pll.pll_ofreq;
- if (bttv_verbose)
- printk("ok\n");
- return 1;
- }
- mdelay(10);
- }
- btv->pll.pll_current = 0;
- if (bttv_verbose)
- printk("oops\n");
- return -1;
-}
-
-static void bt848_muxsel(struct bttv *btv, unsigned int input)
-{
- btaor(bttv_tvcards[btv->type].gpiomask2,~bttv_tvcards[btv->type].gpiomask2,
- BT848_GPIO_OUT_EN);
-
- /* This seems to get rid of some synchronization problems */
- btand(~(3<<5), BT848_IFORM);
- mdelay(10);
-
-
- input %= bttv_tvcards[btv->type].video_inputs;
- if (input==bttv_tvcards[btv->type].svhs)
- {
- btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
- btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
- }
- else
- {
- btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
- btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
- }
- btaor((bttv_tvcards[btv->type].muxsel[input&7]&3)<<5, ~(3<<5), BT848_IFORM);
- audio(btv, (input!=bttv_tvcards[btv->type].tuner) ?
- AUDIO_EXTERN : AUDIO_TUNER, 1);
- btaor(bttv_tvcards[btv->type].muxsel[input]>>4,
- ~bttv_tvcards[btv->type].gpiomask2, BT848_GPIO_DATA);
-}
-
-
-struct tvnorm
-{
- u32 Fsc;
- u16 swidth, sheight; /* scaled standard width, height */
- u16 totalwidth;
- u8 adelay, bdelay, iform;
- u32 scaledtwidth;
- u16 hdelayx1, hactivex1;
- u16 vdelay;
- u8 vbipack;
-};
-
-static struct tvnorm tvnorms[] = {
- /* PAL-BDGHI */
- /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
- /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
- { 35468950,
- 924, 576, 1135, 0x7f, 0x72, (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
- 1135, 186, 924, 0x20, 255},
-
- /* NTSC */
- { 28636363,
- 768, 480, 910, 0x68, 0x5d, (BT848_IFORM_NTSC|BT848_IFORM_XT0),
- 910, 128, 910, 0x1a, 144},
-#if 0
- /* SECAM EAST */
- { 35468950,
- 768, 576, 1135, 0x7f, 0xb0, (BT848_IFORM_SECAM|BT848_IFORM_XT1),
- 944, 186, 922, 0x20, 255},
-#else
- /* SECAM L */
- { 35468950,
- 924, 576, 1135, 0x7f, 0xb0, (BT848_IFORM_SECAM|BT848_IFORM_XT1),
- 1135, 186, 922, 0x20, 255},
-#endif
- /* PAL-NC */
- { 28636363,
- 640, 576, 910, 0x68, 0x5d, (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
- 780, 130, 734, 0x1a, 144},
- /* PAL-M */
- { 28636363,
- 640, 480, 910, 0x68, 0x5d, (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
- 780, 135, 754, 0x1a, 144},
- /* PAL-N */
- { 35468950,
- 768, 576, 1135, 0x7f, 0x72, (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
- 944, 186, 922, 0x20, 144},
- /* NTSC-Japan */
- { 28636363,
- 640, 480, 910, 0x68, 0x5d, (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
- 780, 135, 754, 0x16, 144},
-};
-#define TVNORMS (sizeof(tvnorms)/sizeof(tvnorm))
-#define VBI_SPL 2044
-
-/* RISC command to write one VBI data line */
-#define VBI_RISC BT848_RISC_WRITE|VBI_SPL|BT848_RISC_EOL|BT848_RISC_SOL
-
-static void make_vbitab(struct bttv *btv)
-{
- int i;
- unsigned int *po=(unsigned int *) btv->vbi_odd;
- unsigned int *pe=(unsigned int *) btv->vbi_even;
-
- if (bttv_debug > 1)
- printk("bttv%d: vbi1: po=%08lx pe=%08lx\n",
- btv->nr,virt_to_bus(po), virt_to_bus(pe));
-
- *(po++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); *(po++)=0;
- for (i=0; i<16; i++)
- {
- *(po++)=cpu_to_le32(VBI_RISC);
- *(po++)=cpu_to_le32(kvirt_to_bus((unsigned long)btv->vbibuf+i*2048));
- }
- *(po++)=cpu_to_le32(BT848_RISC_JUMP);
- *(po++)=cpu_to_le32(virt_to_bus(btv->risc_jmp+4));
-
- *(pe++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); *(pe++)=0;
- for (i=16; i<32; i++)
- {
- *(pe++)=cpu_to_le32(VBI_RISC);
- *(pe++)=cpu_to_le32(kvirt_to_bus((unsigned long)btv->vbibuf+i*2048));
- }
- *(pe++)=cpu_to_le32(BT848_RISC_JUMP|BT848_RISC_IRQ|(0x01<<16));
- *(pe++)=cpu_to_le32(virt_to_bus(btv->risc_jmp+10));
-
- if (bttv_debug > 1)
- printk("bttv%d: vbi2: po=%08lx pe=%08lx\n",
- btv->nr,virt_to_bus(po), virt_to_bus(pe));
-}
-
-static int fmtbppx2[16] = {
- 8, 6, 4, 4, 4, 3, 2, 2, 4, 3, 0, 0, 0, 0, 2, 0
-};
-
-static int palette2fmt[] = {
- 0,
- BT848_COLOR_FMT_Y8,
- BT848_COLOR_FMT_RGB8,
- BT848_COLOR_FMT_RGB16,
- BT848_COLOR_FMT_RGB24,
- BT848_COLOR_FMT_RGB32,
- BT848_COLOR_FMT_RGB15,
- BT848_COLOR_FMT_YUY2,
- BT848_COLOR_FMT_BtYUV,
- -1,
- -1,
- -1,
- BT848_COLOR_FMT_RAW,
- BT848_COLOR_FMT_YCrCb422,
- BT848_COLOR_FMT_YCrCb411,
- BT848_COLOR_FMT_YCrCb422,
- BT848_COLOR_FMT_YCrCb411,
-};
-#define PALETTEFMT_MAX (sizeof(palette2fmt)/sizeof(int))
-
-static int make_rawrisctab(struct bttv *btv, unsigned int *ro,
- unsigned int *re, unsigned int *vbuf)
-{
- unsigned long line;
- unsigned long bpl=1024; /* bytes per line */
- unsigned long vadr=(unsigned long) vbuf;
-
- *(ro++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(ro++)=cpu_to_le32(0);
- *(re++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(re++)=cpu_to_le32(0);
-
- /* In PAL 650 blocks of 256 DWORDs are sampled, but only if VDELAY
- is 2 and without separate VBI grabbing.
- We'll have to handle this inside the IRQ handler ... */
-
- for (line=0; line < 640; line++)
- {
- *(ro++)=cpu_to_le32(BT848_RISC_WRITE|bpl|BT848_RISC_SOL|BT848_RISC_EOL);
- *(ro++)=cpu_to_le32(kvirt_to_bus(vadr));
- *(re++)=cpu_to_le32(BT848_RISC_WRITE|bpl|BT848_RISC_SOL|BT848_RISC_EOL);
- *(re++)=cpu_to_le32(kvirt_to_bus(vadr+gbufsize/2));
- vadr+=bpl;
- }
-
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP|BT848_RISC_IRQ|(2<<16));
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
-
- return 0;
-}
-
-static int make_prisctab(struct bttv *btv, unsigned int *ro,
- unsigned int *re,
- unsigned int *vbuf, unsigned short width,
- unsigned short height, unsigned short fmt)
-{
- unsigned long line, lmask;
- unsigned long bl, blcr, blcb, rcmd;
- unsigned long todo;
- unsigned int **rp;
- int inter;
- unsigned long cbadr, cradr;
- unsigned long vadr=(unsigned long) vbuf;
- int shift, csize;
-
- if (bttv_debug > 1)
- printk("bttv%d: prisc1: ro=%08lx re=%08lx\n",
- btv->nr,virt_to_bus(ro), virt_to_bus(re));
-
- switch(fmt)
- {
- case VIDEO_PALETTE_YUV422P:
- csize=(width*height)>>1;
- shift=1;
- lmask=0;
- break;
-
- case VIDEO_PALETTE_YUV411P:
- csize=(width*height)>>2;
- shift=2;
- lmask=0;
- break;
-
- case VIDEO_PALETTE_YUV420P:
- csize=(width*height)>>2;
- shift=1;
- lmask=1;
- break;
-
- case VIDEO_PALETTE_YUV410P:
- csize=(width*height)>>4;
- shift=2;
- lmask=3;
- break;
-
- default:
- return -1;
- }
- cbadr=vadr+(width*height);
- cradr=cbadr+csize;
- inter = (height>tvnorms[btv->win.norm].sheight/2) ? 1 : 0;
-
- *(ro++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM3);
- *(ro++)=0;
- *(re++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM3);
- *(re++)=0;
-
- for (line=0; line < (height<<(1^inter)); line++)
- {
- if(line==height)
- {
- vadr+=csize<<1;
- cbadr=vadr+(width*height);
- cradr=cbadr+csize;
- }
- if (inter)
- rp= (line&1) ? &re : &ro;
- else
- rp= (line>=height) ? &ro : &re;
-
-
- if(line&lmask)
- rcmd=BT848_RISC_WRITE1S23|BT848_RISC_SOL;
- else
- rcmd=BT848_RISC_WRITE123|BT848_RISC_SOL;
-
- todo=width;
- while(todo)
- {
- bl=PAGE_SIZE-((PAGE_SIZE-1)&vadr);
- blcr=(PAGE_SIZE-((PAGE_SIZE-1)&cradr))<<shift;
- blcb=(PAGE_SIZE-((PAGE_SIZE-1)&cbadr))<<shift;
- bl=(blcr<bl) ? blcr : bl;
- bl=(blcb<bl) ? blcb : bl;
- bl=(bl>todo) ? todo : bl;
- blcr=bl>>shift;
- blcb=blcr;
- /* bl now containts the longest row that can be written */
- todo-=bl;
- if(!todo) rcmd|=BT848_RISC_EOL; /* if this is the last EOL */
-
- *((*rp)++)=cpu_to_le32(rcmd|bl);
- *((*rp)++)=cpu_to_le32(blcb|(blcr<<16));
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(vadr));
- vadr+=bl;
- if((rcmd&(15<<28))==BT848_RISC_WRITE123)
- {
- *((*rp)++)=(kvirt_to_bus(cbadr));
- cbadr+=blcb;
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(cradr));
- cradr+=blcr;
- }
-
- rcmd&=~BT848_RISC_SOL; /* only the first has SOL */
- }
- }
-
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP|BT848_RISC_IRQ|(2<<16));
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
-
- if (bttv_debug > 1)
- printk("bttv%d: prisc2: ro=%08lx re=%08lx\n",
- btv->nr,virt_to_bus(ro), virt_to_bus(re));
-
- return 0;
-}
-
-static int make_vrisctab(struct bttv *btv, unsigned int *ro,
- unsigned int *re,
- unsigned int *vbuf, unsigned short width,
- unsigned short height, unsigned short palette)
-{
- unsigned long line;
- unsigned long bpl; /* bytes per line */
- unsigned long bl;
- unsigned long todo;
- unsigned int **rp;
- int inter;
- unsigned long vadr=(unsigned long) vbuf;
-
- if (palette==VIDEO_PALETTE_RAW)
- return make_rawrisctab(btv, ro, re, vbuf);
- if (palette>=VIDEO_PALETTE_PLANAR)
- return make_prisctab(btv, ro, re, vbuf, width, height, palette);
-
- if (bttv_debug > 1)
- printk("bttv%d: vrisc1: ro=%08lx re=%08lx\n",
- btv->nr,virt_to_bus(ro), virt_to_bus(re));
-
- inter = (height>tvnorms[btv->win.norm].sheight/2) ? 1 : 0;
- bpl=width*fmtbppx2[palette2fmt[palette]&0xf]/2;
-
- *(ro++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(ro++)=cpu_to_le32(0);
- *(re++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(re++)=cpu_to_le32(0);
-
- for (line=0; line < (height<<(1^inter)); line++)
- {
- if (inter)
- rp= (line&1) ? &re : &ro;
- else
- rp= (line>=height) ? &ro : &re;
-
- bl=PAGE_SIZE-((PAGE_SIZE-1)&vadr);
- if (bpl<=bl)
- {
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL|
- BT848_RISC_EOL|bpl);
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(vadr));
- vadr+=bpl;
- }
- else
- {
- todo=bpl;
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL|bl);
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(vadr));
- vadr+=bl;
- todo-=bl;
- while (todo>PAGE_SIZE)
- {
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|PAGE_SIZE);
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(vadr));
- vadr+=PAGE_SIZE;
- todo-=PAGE_SIZE;
- }
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_EOL|todo);
- *((*rp)++)=cpu_to_le32(kvirt_to_bus(vadr));
- vadr+=todo;
- }
- }
-
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP|BT848_RISC_IRQ|(2<<16));
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
-
- if (bttv_debug > 1)
- printk("bttv%d: vrisc2: ro=%08lx re=%08lx\n",
- btv->nr,virt_to_bus(ro), virt_to_bus(re));
-
- return 0;
-}
-
-static unsigned char lmaskt[8] =
-{ 0xff, 0xfe, 0xfc, 0xf8, 0xf0, 0xe0, 0xc0, 0x80};
-static unsigned char rmaskt[8] =
-{ 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff};
-
-static void clip_draw_rectangle(unsigned char *clipmap, int x, int y, int w, int h)
-{
- unsigned char lmask, rmask, *p;
- int W, l, r;
- int i;
-
- if (bttv_debug > 1)
- printk("bttv clip: %dx%d+%d+%d\n",w,h,x,y);
-
- /* bitmap is fixed width, 128 bytes (1024 pixels represented) */
- if (x<0)
- {
- w+=x;
- x=0;
- }
- if (y<0)
- {
- h+=y;
- y=0;
- }
- if (w < 0 || h < 0) /* catch bad clips */
- return;
- /* out of range data should just fall through */
- if (y+h>=625)
- h=625-y;
- if (x+w>=1024)
- w=1024-x;
-
- l=x>>3;
- r=(x+w-1)>>3;
- W=r-l-1;
- lmask=lmaskt[x&7];
- rmask=rmaskt[(x+w-1)&7];
- p=clipmap+128*y+l;
-
- if (W>0)
- {
- for (i=0; i<h; i++, p+=128)
- {
- *p|=lmask;
- memset(p+1, 0xff, W);
- p[W+1]|=rmask;
- }
- } else if (!W) {
- for (i=0; i<h; i++, p+=128)
- {
- p[0]|=lmask;
- p[1]|=rmask;
- }
- } else {
- for (i=0; i<h; i++, p+=128)
- p[0]|=lmask&rmask;
- }
-
-
-}
-
-static void make_clip_tab(struct bttv *btv, struct video_clip *cr, int ncr)
-{
- int i, line, x, y, bpl, width, height, inter, maxw;
- unsigned int bpp, dx, sx, **rp, *ro, *re, flags, len;
- unsigned long adr;
- unsigned char *clipmap, *clipline, cbit, lastbit, outofmem;
-
- /* take care: bpp != btv->win.bpp is allowed here */
- bpp = fmtbppx2[btv->win.color_fmt&0xf]/2;
- bpl=btv->win.bpl;
- adr=btv->win.vidadr + btv->win.x * btv->win.bpp + btv->win.y * bpl;
- inter=(btv->win.interlace&1)^1;
- width=btv->win.width;
- height=btv->win.height;
- if (bttv_debug > 1)
- printk("bttv%d: clip1: pal=%d size=%dx%d, bpl=%d bpp=%d\n",
- btv->nr,btv->picture.palette,width,height,bpl,bpp);
- if(width > 1023)
- width = 1023; /* sanity check */
- if(height > 625)
- height = 625; /* sanity check */
- ro=btv->risc_scr_odd;
- re=btv->risc_scr_even;
-
- if (bttv_debug)
- printk("bttv%d: clip: ro=%08lx re=%08lx\n",
- btv->nr,virt_to_bus(ro), virt_to_bus(re));
-
- if ((clipmap=vmalloc(VIDEO_CLIPMAP_SIZE))==NULL) {
- /* can't clip, don't generate any risc code */
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP);
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
- }
- if (ncr < 0) { /* bitmap was pased */
- memcpy(clipmap, (unsigned char *)cr, VIDEO_CLIPMAP_SIZE);
- } else { /* convert rectangular clips to a bitmap */
- memset(clipmap, 0, VIDEO_CLIPMAP_SIZE); /* clear map */
- for (i=0; i<ncr; i++)
- clip_draw_rectangle(clipmap, cr[i].x, cr[i].y,
- cr[i].width, cr[i].height);
- }
- /* clip against viewing window AND screen
- so we do not have to rely on the user program
- */
- maxw = (bpl - btv->win.x * btv->win.bpp) / bpp;
- clip_draw_rectangle(clipmap, (width > maxw) ? maxw : width,
- 0, 1024, 768);
- clip_draw_rectangle(clipmap,0,(btv->win.y+height>btv->win.sheight) ?
- (btv->win.sheight-btv->win.y) : height,1024,768);
- if (btv->win.x<0)
- clip_draw_rectangle(clipmap, 0, 0, -(btv->win.x), 768);
- if (btv->win.y<0)
- clip_draw_rectangle(clipmap, 0, 0, 1024, -(btv->win.y));
-
- *(ro++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(ro++)=cpu_to_le32(0);
- *(re++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(re++)=cpu_to_le32(0);
-
- /* translate bitmap to risc code */
- for (line=outofmem=0; line < (height<<inter) && !outofmem; line++)
- {
- y = line>>inter;
- rp= (line&1) ? &re : &ro;
- clipline = clipmap + (y<<7); /* running pointers ... */
- lastbit = *clipline & 1;
- for(x=dx=0,sx=0; x<=width && !outofmem;) {
- if (0 == (x&7)) {
- /* check bytes not bits if we can ... */
- if (lastbit) {
- while (0xff==*clipline && x<width-8) {
- x += 8;
- dx += 8;
- clipline++;
- }
- } else {
- while (0x00==*clipline && x<width-8) {
- x += 8;
- dx += 8;
- clipline++;
- }
- }
- }
- cbit = *clipline & (1<<(x&7));
- if (x < width && !lastbit == !cbit) {
- dx++;
- } else {
- /* generate the dma controller code */
- len = dx * bpp;
- flags = ((bpp==4) ? BT848_RISC_BYTE3 : 0);
- flags |= ((!sx) ? BT848_RISC_SOL : 0);
- flags |= ((sx + dx == width) ? BT848_RISC_EOL : 0);
- if (!lastbit) {
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|flags|len);
- *((*rp)++)=cpu_to_le32(adr + bpp * sx);
- } else {
- *((*rp)++)=cpu_to_le32(BT848_RISC_SKIP|flags|len);
- }
- lastbit=cbit;
- sx += dx;
- dx = 1;
- if (ro - btv->risc_scr_odd>RISCMEM_LEN/2 - 16)
- outofmem++;
- if (re - btv->risc_scr_even>RISCMEM_LEN/2 - 16)
- outofmem++;
- }
- x++;
- if (0 == (x&7))
- clipline++;
- }
- if ((!inter)||(line&1))
- adr+=bpl;
- }
-
- vfree(clipmap);
- /* outofmem flag relies on the following code to discard extra data */
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP);
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
-
- if (bttv_debug > 1)
- printk("bttv%d: clip2: pal=%d size=%dx%d, bpl=%d bpp=%d\n",
- btv->nr,btv->picture.palette,width,height,bpl,bpp);
-}
-
-/*
- * Set the registers for the size we have specified. Don't bother
- * trying to understand this without the BT848 manual in front of
- * you [AC].
- *
- * PS: The manual is free for download in .pdf format from
- * www.brooktree.com - nicely done those folks.
- */
-
-static inline void bt848_set_eogeo(struct bttv *btv, struct tvnorm *tvn,
- int odd, int width, int height)
-{
- u16 vscale, hscale;
- u32 xsf, sr;
- u16 hdelay;
- u8 crop, vtc;
- int inter = (height>tvn->sheight/2) ? 0 : 1;
- int off = odd ? 0x80 : 0x00;
-
- xsf = (width*tvn->scaledtwidth)/tvn->swidth;
- hscale = ((tvn->totalwidth*4096UL)/xsf-4096);
- hdelay = tvn->hdelayx1;
- hdelay = (hdelay*width)/tvn->swidth;
- hdelay &= 0x3fe;
- sr=((tvn->sheight>>inter)*512)/height-512;
- vscale=(0x10000UL-sr)&0x1fff;
- crop=((width>>8)&0x03)|((hdelay>>6)&0x0c)|
- ((tvn->sheight>>4)&0x30)|((tvn->vdelay>>2)&0xc0);
- vscale |= inter ? (BT848_VSCALE_INT<<8) : 0;
-
-#if 0
- /* Some people say interpolation looks bad ... */
- vtc = (width < 193) ? 2 : ((width < 385) ? 1 : 0);
- if (width < 767)
- btor(BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off);
- else
- btand(~BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off);
-#else
- vtc = 0;
- btand(~BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off);
-#endif
-
- btwrite(vtc, BT848_E_VTC+off);
- btwrite(hscale>>8, BT848_E_HSCALE_HI+off);
- btwrite(hscale&0xff, BT848_E_HSCALE_LO+off);
- btaor((vscale>>8), 0xe0, BT848_E_VSCALE_HI+off);
- btwrite(vscale&0xff, BT848_E_VSCALE_LO+off);
- btwrite(width&0xff, BT848_E_HACTIVE_LO+off);
- btwrite(hdelay&0xff, BT848_E_HDELAY_LO+off);
- btwrite(tvn->sheight&0xff, BT848_E_VACTIVE_LO+off);
- btwrite(tvn->vdelay&0xff, BT848_E_VDELAY_LO+off);
- btwrite(crop, BT848_E_CROP+off);
-}
-
-
-static void bt848_set_geo(struct bttv *btv,
- int no_irq_context)
-{
- u16 ewidth, eheight, owidth, oheight;
- u16 format, bswap;
- struct tvnorm *tvn;
-
- tvn=&tvnorms[btv->win.norm];
-
- btwrite(tvn->adelay, BT848_ADELAY);
- btwrite(tvn->bdelay, BT848_BDELAY);
- btaor(tvn->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH), BT848_IFORM);
- btwrite(tvn->vbipack, BT848_VBI_PACK_SIZE);
- btwrite(1, BT848_VBI_PACK_DEL);
-
- btv->pll.pll_ofreq = tvn->Fsc;
- if (no_irq_context)
- set_pll(btv);
-
- btv->win.interlace = (btv->win.height>tvn->sheight/2) ? 1 : 0;
-
- if (0 == btv->risc_cap_odd &&
- 0 == btv->risc_cap_even) {
- /* overlay only */
- owidth = btv->win.width;
- oheight = btv->win.height;
- ewidth = btv->win.width;
- eheight = btv->win.height;
- format = btv->win.color_fmt;
- bswap = btv->fb_color_ctl;
- } else if (-1 != btv->gq_grab &&
- 0 == btv->risc_cap_odd &&
- !btv->win.interlace &&
- btv->scr_on) {
- /* odd field -> overlay, even field -> capture */
- owidth = btv->win.width;
- oheight = btv->win.height;
- ewidth = btv->gbuf[btv->gq_grab].width;
- eheight = btv->gbuf[btv->gq_grab].height;
- format = (btv->win.color_fmt & 0xf0) |
- (btv->gbuf[btv->gq_grab].fmt & 0x0f);
- bswap = btv->fb_color_ctl & 0x0a;
- } else {
- /* capture only */
- owidth = btv->gbuf[btv->gq_grab].width;
- oheight = btv->gbuf[btv->gq_grab].height;
- ewidth = btv->gbuf[btv->gq_grab].width;
- eheight = btv->gbuf[btv->gq_grab].height;
- format = btv->gbuf[btv->gq_grab].fmt;
- bswap = 0;
- }
-
- /* program odd + even fields */
- bt848_set_eogeo(btv, tvn, 1, owidth, oheight);
- bt848_set_eogeo(btv, tvn, 0, ewidth, eheight);
-
- btwrite(format, BT848_COLOR_FMT);
- btwrite(bswap | BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
-}
-
-
-static int bpp2fmt[4] = {
- BT848_COLOR_FMT_RGB8, BT848_COLOR_FMT_RGB16,
- BT848_COLOR_FMT_RGB24, BT848_COLOR_FMT_RGB32
-};
-
-static void bt848_set_winsize(struct bttv *btv)
-{
- unsigned short format;
-
- if (btv->picture.palette > 0 && btv->picture.palette <= VIDEO_PALETTE_YUV422) {
- /* format set by VIDIOCSPICT */
- format = palette2fmt[btv->picture.palette];
- } else {
- /* use default for the given color depth */
- format = (btv->win.depth==15) ? BT848_COLOR_FMT_RGB15 :
- bpp2fmt[(btv->win.bpp-1)&3];
- }
- btv->win.color_fmt = format;
- if (bigendian &&
- format == BT848_COLOR_FMT_RGB32) {
- btv->fb_color_ctl =
- BT848_COLOR_CTL_WSWAP_ODD |
- BT848_COLOR_CTL_WSWAP_EVEN |
- BT848_COLOR_CTL_BSWAP_ODD |
- BT848_COLOR_CTL_BSWAP_EVEN;
- } else if (bigendian &&
- (format == BT848_COLOR_FMT_RGB16 ||
- format == BT848_COLOR_FMT_RGB15)) {
- btv->fb_color_ctl =
- BT848_COLOR_CTL_BSWAP_ODD |
- BT848_COLOR_CTL_BSWAP_EVEN;
- } else {
- btv->fb_color_ctl = 0;
- }
-
- /* RGB8 seems to be a 9x5x5 GRB color cube starting at
- * color 16. Why the h... can't they even mention this in the
- * data sheet? [AC - because it's a standard format so I guess
- * it never occurred to them]
- * Enable dithering in this mode.
- */
-
- if (format==BT848_COLOR_FMT_RGB8)
- btand(~BT848_CAP_CTL_DITH_FRAME, BT848_CAP_CTL);
- else
- btor(BT848_CAP_CTL_DITH_FRAME, BT848_CAP_CTL);
-
- bt848_set_geo(btv,1);
-}
-
-#ifdef HACKING
-/* playing with kiobufs and dma-to-userspace. 2.4.x only
- Yes, I know: cut+paste programming is ugly.
- will fix later, this is proof-of-concept right now. */
-static int make_vrisctab_kiobuf(struct bttv *btv, unsigned int *ro,
- unsigned int *re, struct kiobuf *iobuf,
- unsigned short width, unsigned short height,
- unsigned short palette)
-{
- unsigned long bpl; /* bytes per line */
- unsigned long bl;
- unsigned long todo;
- unsigned long pageaddr;
- unsigned int **rp;
- unsigned long line,inter,offset,page;
-
- inter = (height>tvnorms[btv->win.norm].sheight/2) ? 1 : 0;
- bpl=width*fmtbppx2[palette2fmt[palette]&0xf]/2;
-
- *(ro++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(ro++)=cpu_to_le32(0);
- *(re++)=cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
- *(re++)=cpu_to_le32(0);
-
- offset = iobuf->offset;
- page = 0;
- pageaddr = virt_to_bus(page_address(iobuf->maplist[page]));
- for (line=0; line < (height<<(1^inter)); line++)
- {
- if (inter)
- rp= (line&1) ? &re : &ro;
- else
- rp= (line>=height) ? &ro : &re;
-
- bl = PAGE_SIZE - offset;
- if (bpl <= bl) {
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL|
- BT848_RISC_EOL|bpl);
- *((*rp)++)=cpu_to_le32(pageaddr+offset);
- offset+=bpl;
- } else {
- todo = bpl;
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL|bl);
- *((*rp)++)=cpu_to_le32(pageaddr+offset);
- todo -= bl;
- offset = 0;
- page++;
- pageaddr = virt_to_bus(page_address(iobuf->maplist[page]));
- while (todo>PAGE_SIZE)
- {
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|PAGE_SIZE);
- *((*rp)++)=cpu_to_le32(pageaddr);
- page++;
- pageaddr = virt_to_bus(page_address(iobuf->maplist[page]));
- }
- *((*rp)++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_EOL|todo);
- *((*rp)++)=cpu_to_le32(pageaddr);
- offset += todo;
- }
- }
-
- *(ro++)=cpu_to_le32(BT848_RISC_JUMP);
- *(ro++)=cpu_to_le32(btv->bus_vbi_even);
- *(re++)=cpu_to_le32(BT848_RISC_JUMP|BT848_RISC_IRQ|(2<<16));
- *(re++)=cpu_to_le32(btv->bus_vbi_odd);
-
- return 0;
-}
-
-static int vgrab_kiobuf(struct bttv *btv, struct bttv_just_hacking *mp,
- struct kiobuf *iobuf)
-{
- unsigned int *ro, *re;
- unsigned long flags;
-
- if(btv->gbuf[0].stat != GBUFFER_UNUSED)
- return -EBUSY;
-
- if(mp->height < 32 || mp->width < 32)
- return -EINVAL;
- if (mp->format >= 12 /* more is'nt yet ... PALETTEFMT_MAX */)
- return -EINVAL;
-
- if(-1 == palette2fmt[mp->format])
- return -EINVAL;
-
- /*
- * Ok load up the BT848
- */
-
- ro=btv->gbuf[0].risc;
- re=ro+2048;
- make_vrisctab_kiobuf(btv, ro, re, iobuf, mp->width, mp->height, mp->format);
-
- if (bttv_debug)
- printk("bttv%d: cap vgrab_kiobuf: queue %d (%d:%dx%d)\n",
- btv->nr,0,mp->format,mp->width,mp->height);
- spin_lock_irqsave(&btv->s_lock, flags);
- btv->gbuf[0].stat = GBUFFER_GRABBING;
- btv->gbuf[0].fmt = palette2fmt[mp->format];
- btv->gbuf[0].width = mp->width;
- btv->gbuf[0].height = mp->height;
- btv->gbuf[0].ro = virt_to_bus(ro);
- btv->gbuf[0].re = virt_to_bus(re);
-
-#if 1
- if (mp->height <= tvnorms[btv->win.norm].sheight/2 &&
- mp->format != VIDEO_PALETTE_RAW)
- btv->gbuf[0].ro = 0;
-#endif
-
- if (-1 == btv->gq_grab && btv->gq_in == btv->gq_out) {
- btv->gq_start = 1;
- btv->risc_jmp[12]=cpu_to_le32(BT848_RISC_JUMP|(0x8<<16)|BT848_RISC_IRQ);
- }
- btv->gqueue[btv->gq_in++] = 0;
- btv->gq_in = btv->gq_in % MAX_GBUFFERS;
-
- btor(3, BT848_CAP_CTL);
- btor(3, BT848_GPIO_DMA_CTL);
- spin_unlock_irqrestore(&btv->s_lock, flags);
- return 0;
-}
-#endif
-
-/*
- * Grab into virtual memory.
- */
-
-static int vgrab(struct bttv *btv, struct video_mmap *mp)
-{
- unsigned int *ro, *re;
- unsigned int *vbuf;
- unsigned long flags;
-
- if(btv->fbuffer==NULL)
- {
- if(fbuffer_alloc(btv))
- return -ENOBUFS;
- }
-
- if(mp->frame >= gbuffers || mp->frame < 0)
- return -EINVAL;
- if(btv->gbuf[mp->frame].stat != GBUFFER_UNUSED)
- return -EBUSY;
-
- if(mp->height < 32 || mp->width < 32)
- return -EINVAL;
- if (mp->format >= PALETTEFMT_MAX)
- return -EINVAL;
-
- if (mp->height*mp->width*fmtbppx2[palette2fmt[mp->format]&0x0f]/2
- > gbufsize)
- return -EINVAL;
- if(-1 == palette2fmt[mp->format])
- return -EINVAL;
-
- /*
- * Ok load up the BT848
- */
-
- vbuf=(unsigned int *)(btv->fbuffer+gbufsize*mp->frame);
- ro=btv->gbuf[mp->frame].risc;
- re=ro+2048;
- make_vrisctab(btv, ro, re, vbuf, mp->width, mp->height, mp->format);
-
- if (bttv_debug)
- printk("bttv%d: cap vgrab: queue %d (%d:%dx%d)\n",
- btv->nr,mp->frame,mp->format,mp->width,mp->height);
- spin_lock_irqsave(&btv->s_lock, flags);
- btv->gbuf[mp->frame].stat = GBUFFER_GRABBING;
- btv->gbuf[mp->frame].fmt = palette2fmt[mp->format];
- btv->gbuf[mp->frame].width = mp->width;
- btv->gbuf[mp->frame].height = mp->height;
- btv->gbuf[mp->frame].ro = virt_to_bus(ro);
- btv->gbuf[mp->frame].re = virt_to_bus(re);
-
-#if 1
- if (mp->height <= tvnorms[btv->win.norm].sheight/2 &&
- mp->format != VIDEO_PALETTE_RAW)
- btv->gbuf[mp->frame].ro = 0;
-#endif
-
- if (-1 == btv->gq_grab && btv->gq_in == btv->gq_out) {
- btv->gq_start = 1;
- btv->risc_jmp[12]=cpu_to_le32(BT848_RISC_JUMP|(0x8<<16)|BT848_RISC_IRQ);
- }
- btv->gqueue[btv->gq_in++] = mp->frame;
- btv->gq_in = btv->gq_in % MAX_GBUFFERS;
-
- btor(3, BT848_CAP_CTL);
- btor(3, BT848_GPIO_DMA_CTL);
- spin_unlock_irqrestore(&btv->s_lock, flags);
- return 0;
-}
-
-static long bttv_write(struct video_device *v, const char *buf, unsigned long count, int nonblock)
-{
- return -EINVAL;
-}
-
-static long bttv_read(struct video_device *v, char *buf, unsigned long count, int nonblock)
-{
- struct bttv *btv= (struct bttv *)v;
- int q,todo;
- DECLARE_WAITQUEUE(wait, current);
-
- /* BROKEN: RETURNS VBI WHEN IT SHOULD RETURN GRABBED VIDEO FRAME */
- todo=count;
- while (todo && todo>(q=VBIBUF_SIZE-btv->vbip))
- {
- if(copy_to_user((void *) buf, (void *) btv->vbibuf+btv->vbip, q))
- return -EFAULT;
- todo-=q;
- buf+=q;
-
- add_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_INTERRUPTIBLE;
- if (todo && q==VBIBUF_SIZE-btv->vbip)
- {
- if(nonblock)
- {
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
- if(count==todo)
- return -EWOULDBLOCK;
- return count-todo;
- }
- schedule();
- if(signal_pending(current))
- {
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
-
- if(todo==count)
- return -EINTR;
- else
- return count-todo;
- }
- }
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
- }
- if (todo)
- {
- if(copy_to_user((void *) buf, (void *) btv->vbibuf+btv->vbip, todo))
- return -EFAULT;
- btv->vbip+=todo;
- }
- return count;
-}
-
-static inline void burst(int on)
-{
- tvnorms[0].scaledtwidth = 1135 - (on?BURSTOFFSET-2:0);
- tvnorms[0].hdelayx1 = 186 - (on?BURSTOFFSET :0);
- tvnorms[2].scaledtwidth = 1135 - (on?BURSTOFFSET-2:0);
- tvnorms[2].hdelayx1 = 186 - (on?BURSTOFFSET :0);
-}
-
-static void bt848_restart(struct bttv *btv)
-{
- unsigned long irq_flags;
-
- if (bttv_verbose)
- printk("bttv%d: resetting chip\n",btv->nr);
- btwrite(0xfffffUL, BT848_INT_STAT);
- btand(~15, BT848_GPIO_DMA_CTL);
- btwrite(0, BT848_SRESET);
- btwrite(virt_to_bus(btv->risc_jmp+2),
- BT848_RISC_STRT_ADD);
-
- /* enforce pll reprogramming */
- btv->pll.pll_current = 0;
- set_pll(btv);
-
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- btv->errors = 0;
- btv->needs_restart = 0;
- bt848_set_geo(btv,0);
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
-}
-
-/*
- * Open a bttv card. Right now the flags stuff is just playing
- */
-
-static int bttv_open(struct video_device *dev, int flags)
-{
- struct bttv *btv = (struct bttv *)dev;
- int i,ret;
-
- ret = -EBUSY;
-
- MOD_INC_USE_COUNT;
- down(&btv->lock);
- if (btv->user)
- goto out_unlock;
-
- btv->fbuffer=(unsigned char *) rvmalloc(gbuffers*gbufsize);
- ret = -ENOMEM;
- if (!btv->fbuffer)
- goto out_unlock;
-
- btv->gq_in = 0;
- btv->gq_out = 0;
- btv->gq_grab = -1;
- for (i = 0; i < gbuffers; i++)
- btv->gbuf[i].stat = GBUFFER_UNUSED;
-
- if (btv->needs_restart)
- bt848_restart(btv);
- burst(0);
- set_pll(btv);
- btv->user++;
- up(&btv->lock);
- return 0;
-
- out_unlock:
- up(&btv->lock);
- MOD_DEC_USE_COUNT;
- return ret;
-}
-
-static void bttv_close(struct video_device *dev)
-{
- struct bttv *btv=(struct bttv *)dev;
- unsigned long irq_flags;
-
- down(&btv->lock);
- btv->user--;
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- btv->scr_on = 0;
- btv->risc_cap_odd = 0;
- btv->risc_cap_even = 0;
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
-
- /*
- * A word of warning. At this point the chip
- * is still capturing because its FIFO hasn't emptied
- * and the DMA control operations are posted PCI
- * operations.
- */
-
- btread(BT848_I2C); /* This fixes the PCI posting delay */
-
- if (-1 != btv->gq_grab) {
- /*
- * This is sucky but right now I can't find a good way to
- * be sure its safe to free the buffer. We wait 5-6 fields
- * which is more than sufficient to be sure.
- */
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(HZ/10); /* Wait 1/10th of a second */
- }
-
- /*
- * We have allowed it to drain.
- */
-
- if(btv->fbuffer)
- rvfree((void *) btv->fbuffer, gbuffers*gbufsize);
- btv->fbuffer=0;
- up(&btv->lock);
- MOD_DEC_USE_COUNT;
-}
-
-
-/***********************************/
-/* ioctls and supporting functions */
-/***********************************/
-
-extern inline void bt848_bright(struct bttv *btv, uint bright)
-{
- btwrite(bright&0xff, BT848_BRIGHT);
-}
-
-extern inline void bt848_hue(struct bttv *btv, uint hue)
-{
- btwrite(hue&0xff, BT848_HUE);
-}
-
-extern inline void bt848_contrast(struct bttv *btv, uint cont)
-{
- unsigned int conthi;
-
- conthi=(cont>>6)&4;
- btwrite(cont&0xff, BT848_CONTRAST_LO);
- btaor(conthi, ~4, BT848_E_CONTROL);
- btaor(conthi, ~4, BT848_O_CONTROL);
-}
-
-extern inline void bt848_sat_u(struct bttv *btv, unsigned long data)
-{
- u32 datahi;
-
- datahi=(data>>7)&2;
- btwrite(data&0xff, BT848_SAT_U_LO);
- btaor(datahi, ~2, BT848_E_CONTROL);
- btaor(datahi, ~2, BT848_O_CONTROL);
-}
-
-static inline void bt848_sat_v(struct bttv *btv, unsigned long data)
-{
- u32 datahi;
-
- datahi=(data>>8)&1;
- btwrite(data&0xff, BT848_SAT_V_LO);
- btaor(datahi, ~1, BT848_E_CONTROL);
- btaor(datahi, ~1, BT848_O_CONTROL);
-}
-
-/*
- * ioctl routine
- */
-
-
-static int bttv_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
- struct bttv *btv=(struct bttv *)dev;
- unsigned long irq_flags;
- int i,ret = 0;
-
- if (bttv_debug > 1)
- printk("bttv%d: ioctl 0x%x\n",btv->nr,cmd);
-
- switch (cmd) {
- case VIDIOCGCAP:
- {
- struct video_capability b;
- strcpy(b.name,btv->video_dev.name);
- b.type = VID_TYPE_CAPTURE|
- ((bttv_tvcards[btv->type].tuner != -1) ? VID_TYPE_TUNER : 0) |
- VID_TYPE_OVERLAY|
- VID_TYPE_CLIPPING|
- VID_TYPE_FRAMERAM|
- VID_TYPE_SCALES;
- b.channels = bttv_tvcards[btv->type].video_inputs;
- b.audios = bttv_tvcards[btv->type].audio_inputs;
- b.maxwidth = tvnorms[btv->win.norm].swidth;
- b.maxheight = tvnorms[btv->win.norm].sheight;
- b.minwidth = 32;
- b.minheight = 32;
- if(copy_to_user(arg,&b,sizeof(b)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCGCHAN:
- {
- struct video_channel v;
- if(copy_from_user(&v, arg,sizeof(v)))
- return -EFAULT;
- v.flags=VIDEO_VC_AUDIO;
- v.tuners=0;
- v.type=VIDEO_TYPE_CAMERA;
- v.norm = btv->win.norm;
- if (v.channel>=bttv_tvcards[btv->type].video_inputs)
- return -EINVAL;
- if(v.channel==bttv_tvcards[btv->type].tuner)
- {
- strcpy(v.name,"Television");
- v.flags|=VIDEO_VC_TUNER;
- v.type=VIDEO_TYPE_TV;
- v.tuners=1;
- }
- else if(v.channel==bttv_tvcards[btv->type].svhs)
- strcpy(v.name,"S-Video");
- else
- sprintf(v.name,"Composite%d",v.channel);
-
- if(copy_to_user(arg,&v,sizeof(v)))
- return -EFAULT;
- return 0;
- }
- /*
- * Each channel has 1 tuner
- */
- case VIDIOCSCHAN:
- {
- struct video_channel v;
- if(copy_from_user(&v, arg,sizeof(v)))
- return -EFAULT;
-
- if (v.channel>bttv_tvcards[btv->type].video_inputs)
- return -EINVAL;
- if (v.norm > (sizeof(tvnorms)/sizeof(*tvnorms)))
- return -EOPNOTSUPP;
-
- bttv_call_i2c_clients(btv,cmd,&v);
- down(&btv->lock);
- bt848_muxsel(btv, v.channel);
- btv->channel=v.channel;
- if (btv->win.norm != v.norm) {
- btv->win.norm = v.norm;
- make_vbitab(btv);
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_winsize(btv);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- }
- up(&btv->lock);
- return 0;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner v;
- if(copy_from_user(&v,arg,sizeof(v))!=0)
- return -EFAULT;
- if(v.tuner||btv->channel) /* Only tuner 0 */
- return -EINVAL;
- strcpy(v.name, "Television");
- v.rangelow=0;
- v.rangehigh=0xFFFFFFFF;
- v.flags=VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
- v.mode = btv->win.norm;
- v.signal = (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) ? 0xFFFF : 0;
- bttv_call_i2c_clients(btv,cmd,&v);
- if(copy_to_user(arg,&v,sizeof(v)))
- return -EFAULT;
- return 0;
- }
- /* We have but one tuner */
- case VIDIOCSTUNER:
- {
- struct video_tuner v;
- if(copy_from_user(&v, arg, sizeof(v)))
- return -EFAULT;
- /* Only one channel has a tuner */
- if(v.tuner!=bttv_tvcards[btv->type].tuner)
- return -EINVAL;
-
- if(v.mode!=VIDEO_MODE_PAL&&v.mode!=VIDEO_MODE_NTSC
- &&v.mode!=VIDEO_MODE_SECAM)
- return -EOPNOTSUPP;
- bttv_call_i2c_clients(btv,cmd,&v);
- if (btv->win.norm != v.mode) {
- btv->win.norm = v.mode;
- down(&btv->lock);
- set_pll(btv);
- make_vbitab(btv);
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_winsize(btv);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- up(&btv->lock);
- }
- return 0;
- }
- case VIDIOCGPICT:
- {
- struct video_picture p=btv->picture;
- if(copy_to_user(arg, &p, sizeof(p)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCSPICT:
- {
- struct video_picture p;
- if(copy_from_user(&p, arg,sizeof(p)))
- return -EFAULT;
- if (p.palette > PALETTEFMT_MAX)
- return -EINVAL;
- down(&btv->lock);
- /* We want -128 to 127 we get 0-65535 */
- bt848_bright(btv, (p.brightness>>8)-128);
- /* 0-511 for the colour */
- bt848_sat_u(btv, p.colour>>7);
- bt848_sat_v(btv, ((p.colour>>7)*201L)/237);
- /* -128 to 127 */
- bt848_hue(btv, (p.hue>>8)-128);
- /* 0-511 */
- bt848_contrast(btv, p.contrast>>7);
- btv->picture = p;
- up(&btv->lock);
- return 0;
- }
- case VIDIOCSWIN:
- {
- struct video_window vw;
- struct video_clip *vcp = NULL;
-
- if(copy_from_user(&vw,arg,sizeof(vw)))
- return -EFAULT;
-
- down(&btv->lock);
- if(vw.flags || vw.width < 16 || vw.height < 16)
- {
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- btv->scr_on = 0;
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- return -EINVAL;
- }
- if (btv->win.bpp < 4)
- { /* adjust and align writes */
- vw.x = (vw.x + 3) & ~3;
- vw.width &= ~3;
- }
- if (btv->needs_restart)
- bt848_restart(btv);
- btv->win.x=vw.x;
- btv->win.y=vw.y;
- btv->win.width=vw.width;
- btv->win.height=vw.height;
-
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_risc_jmps(btv,0);
- bt848_set_winsize(btv);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
-
- /*
- * Do any clips.
- */
- if(vw.clipcount<0) {
- if((vcp=vmalloc(VIDEO_CLIPMAP_SIZE))==NULL)
- return -ENOMEM;
- if(copy_from_user(vcp, vw.clips,
- VIDEO_CLIPMAP_SIZE)) {
- vfree(vcp);
- return -EFAULT;
- }
- } else if (vw.clipcount) {
- if((vcp=vmalloc(sizeof(struct video_clip)*
- (vw.clipcount))) == NULL)
- return -ENOMEM;
- if(copy_from_user(vcp,vw.clips,
- sizeof(struct video_clip)*
- vw.clipcount)) {
- vfree(vcp);
- return -EFAULT;
- }
- }
- make_clip_tab(btv, vcp, vw.clipcount);
- if (vw.clipcount != 0)
- vfree(vcp);
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- up(&btv->lock);
- return 0;
- }
- case VIDIOCGWIN:
- {
- struct video_window vw;
- /* Oh for a COBOL move corresponding .. */
- vw.x=btv->win.x;
- vw.y=btv->win.y;
- vw.width=btv->win.width;
- vw.height=btv->win.height;
- vw.chromakey=0;
- vw.flags=0;
- if(btv->win.interlace)
- vw.flags|=VIDEO_WINDOW_INTERLACE;
- if(copy_to_user(arg,&vw,sizeof(vw)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCCAPTURE:
- {
- int v;
- if(copy_from_user(&v, arg,sizeof(v)))
- return -EFAULT;
- if(btv->win.vidadr == 0)
- return -EINVAL;
- if (btv->win.width==0 || btv->win.height==0)
- return -EINVAL;
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- if (v == 1 && btv->win.vidadr != 0)
- btv->scr_on = 1;
- if (v == 0)
- btv->scr_on = 0;
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- return 0;
- }
- case VIDIOCGFBUF:
- {
- struct video_buffer v;
- v.base=(void *)btv->win.vidadr;
- v.height=btv->win.sheight;
- v.width=btv->win.swidth;
- v.depth=btv->win.depth;
- v.bytesperline=btv->win.bpl;
- if(copy_to_user(arg, &v,sizeof(v)))
- return -EFAULT;
- return 0;
-
- }
- case VIDIOCSFBUF:
- {
- struct video_buffer v;
- if(!capable(CAP_SYS_ADMIN) &&
- !capable(CAP_SYS_RAWIO))
- return -EPERM;
- if(copy_from_user(&v, arg,sizeof(v)))
- return -EFAULT;
- if(v.depth!=8 && v.depth!=15 && v.depth!=16 &&
- v.depth!=24 && v.depth!=32 && v.width > 16 &&
- v.height > 16 && v.bytesperline > 16)
- return -EINVAL;
- down(&btv->lock);
- if (v.base)
- btv->win.vidadr=(unsigned long)v.base;
- btv->win.sheight=v.height;
- btv->win.swidth=v.width;
- btv->win.bpp=((v.depth+7)&0x38)/8;
- btv->win.depth=v.depth;
- btv->win.bpl=v.bytesperline;
-
- /* set sefault color format */
- switch (btv->win.bpp) {
- case 8: btv->picture.palette = VIDEO_PALETTE_HI240; break;
- case 15: btv->picture.palette = VIDEO_PALETTE_RGB555; break;
- case 16: btv->picture.palette = VIDEO_PALETTE_RGB565; break;
- case 24: btv->picture.palette = VIDEO_PALETTE_RGB24; break;
- case 32: btv->picture.palette = VIDEO_PALETTE_RGB32; break;
- }
-
- if (bttv_debug)
- printk("Display at %p is %d by %d, bytedepth %d, bpl %d\n",
- v.base, v.width,v.height, btv->win.bpp, btv->win.bpl);
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_winsize(btv);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- up(&btv->lock);
- return 0;
- }
- case VIDIOCKEY:
- {
- /* Will be handled higher up .. */
- return 0;
- }
- case VIDIOCGFREQ:
- {
- unsigned long v=btv->win.freq;
- if(copy_to_user(arg,&v,sizeof(v)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCSFREQ:
- {
- unsigned long v;
- if(copy_from_user(&v, arg, sizeof(v)))
- return -EFAULT;
- btv->win.freq=v;
- bttv_call_i2c_clients(btv,cmd,&v);
-#if 0
- if (btv->type == BTTV_MIROPRO && btv->radio)
- tea5757_set_freq(btv,v);
-#endif
- return 0;
- }
-
- case VIDIOCGAUDIO:
- {
- struct video_audio v;
-
- v=btv->audio_dev;
- v.flags&=~(VIDEO_AUDIO_MUTE|VIDEO_AUDIO_MUTABLE);
- v.flags|=VIDEO_AUDIO_MUTABLE;
- strcpy(v.name,"TV");
-
- v.mode = VIDEO_SOUND_MONO;
- bttv_call_i2c_clients(btv,cmd,&v);
-
- if (btv->type == BTTV_TERRATV) {
- v.mode = VIDEO_SOUND_MONO | VIDEO_SOUND_STEREO |
- VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
- }
-#ifndef HAVE_TVAUDIO
- else if (btv->audio_chip == TDA9840) {
- /* begin of Horrible Hack <grin@tolna.net> */
- v.flags|=VIDEO_AUDIO_VOLUME;
- v.mode = VIDEO_SOUND_MONO;
- v.mode |= VIDEO_SOUND_STEREO;
- v.mode |= VIDEO_SOUND_LANG1|VIDEO_SOUND_LANG2;
- v.volume = 32768; /* fixme */
- v.step = 4096;
- }
-#endif
-
- if(copy_to_user(arg,&v,sizeof(v)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCSAUDIO:
- {
- struct video_audio v;
-
- if(copy_from_user(&v,arg, sizeof(v)))
- return -EFAULT;
- down(&btv->lock);
- if(v.flags&VIDEO_AUDIO_MUTE)
- audio(btv, AUDIO_MUTE, 1);
- /* One audio source per tuner -- huh? <GA> */
- if(v.audio<0 || v.audio >= bttv_tvcards[btv->type].audio_inputs) {
- up(&btv->lock);
- return -EINVAL;
- }
- /* bt848_muxsel(btv,v.audio); */
- if(!(v.flags&VIDEO_AUDIO_MUTE))
- audio(btv, AUDIO_UNMUTE, 1);
-
- bttv_call_i2c_clients(btv,cmd,&v);
-
- if (btv->type == BTTV_TERRATV) {
- unsigned int con = 0;
- btor(0x180000, BT848_GPIO_OUT_EN);
- if (v.mode & VIDEO_SOUND_LANG2)
- con = 0x080000;
- if (v.mode & VIDEO_SOUND_STEREO)
- con = 0x180000;
- btaor(con, ~0x180000, BT848_GPIO_DATA);
-
- } else if (btv->type == BTTV_WINVIEW_601)
- winview_setvol(btv,&v);
-
- btv->audio_dev=v;
- up(&btv->lock);
- return 0;
- }
-
- case VIDIOCSYNC:
- {
- DECLARE_WAITQUEUE(wait, current);
-
- if(copy_from_user((void *)&i,arg,sizeof(int)))
- return -EFAULT;
- if (i < 0 || i >= gbuffers)
- return -EINVAL;
- switch (btv->gbuf[i].stat) {
- case GBUFFER_UNUSED:
- ret = -EINVAL;
- break;
- case GBUFFER_GRABBING:
- add_wait_queue(&btv->capq, &wait);
- current->state = TASK_INTERRUPTIBLE;
- while(btv->gbuf[i].stat==GBUFFER_GRABBING) {
- if (bttv_debug)
- printk("bttv%d: cap sync: sleep on %d\n",btv->nr,i);
- schedule();
- if(signal_pending(current)) {
- remove_wait_queue(&btv->capq, &wait);
- current->state = TASK_RUNNING;
- return -EINTR;
- }
- }
- remove_wait_queue(&btv->capq, &wait);
- current->state = TASK_RUNNING;
- /* fall throuth */
- case GBUFFER_DONE:
- case GBUFFER_ERROR:
- ret = (btv->gbuf[i].stat == GBUFFER_ERROR) ? -EIO : 0;
- if (bttv_debug)
- printk("bttv%d: cap sync: buffer %d, retval %d\n",btv->nr,i,ret);
- btv->gbuf[i].stat = GBUFFER_UNUSED;
- }
- if (btv->needs_restart) {
- down(&btv->lock);
- bt848_restart(btv);
- up(&btv->lock);
- }
- return ret;
- }
-
- case BTTV_FIELDNR:
- if(copy_to_user((void *) arg, (void *) &btv->last_field,
- sizeof(btv->last_field)))
- return -EFAULT;
- break;
-
- case BTTV_PLLSET: {
- struct bttv_pll_info p;
- if(!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if(copy_from_user(&p , (void *) arg, sizeof(btv->pll)))
- return -EFAULT;
- down(&btv->lock);
- btv->pll.pll_ifreq = p.pll_ifreq;
- btv->pll.pll_ofreq = p.pll_ofreq;
- btv->pll.pll_crystal = p.pll_crystal;
- up(&btv->lock);
- break;
- }
-
- case VIDIOCMCAPTURE:
- {
- struct video_mmap vm;
- int ret;
- if(copy_from_user((void *) &vm, (void *) arg, sizeof(vm)))
- return -EFAULT;
- down(&btv->lock);
- ret = vgrab(btv, &vm);
- up(&btv->lock);
- return ret;
- }
-
- case VIDIOCGMBUF:
- {
- struct video_mbuf vm;
- memset(&vm, 0 , sizeof(vm));
- vm.size=gbufsize*gbuffers;
- vm.frames=gbuffers;
- for (i = 0; i < gbuffers; i++)
- vm.offsets[i]=i*gbufsize;
- if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm)))
- return -EFAULT;
- return 0;
- }
-
- case VIDIOCGUNIT:
- {
- struct video_unit vu;
- vu.video=btv->video_dev.minor;
- vu.vbi=btv->vbi_dev.minor;
- if(btv->radio_dev.minor!=-1)
- vu.radio=btv->radio_dev.minor;
- else
- vu.radio=VIDEO_NO_UNIT;
- vu.audio=VIDEO_NO_UNIT;
- vu.teletext=VIDEO_NO_UNIT;
- if(copy_to_user((void *)arg, (void *)&vu, sizeof(vu)))
- return -EFAULT;
- return 0;
- }
-
- case BTTV_BURST_ON:
- {
- burst(1);
- return 0;
- }
-
- case BTTV_BURST_OFF:
- {
- burst(0);
- return 0;
- }
-
- case BTTV_VERSION:
- {
- return BTTV_VERSION_CODE;
- }
-
- case BTTV_PICNR:
- {
- /* return picture;*/
- return 0;
- }
-
-#ifdef HACKING
- /* playing with kiobufs and dma-to-userspace */
- case BTTV_JUST_HACKING:
- {
- DECLARE_WAITQUEUE(wait, current);
- struct bttv_just_hacking hack;
- struct kiobuf *iobuf;
- int err;
-
- if(copy_from_user((void *) &hack, (void *) arg, sizeof(hack)))
- return -EFAULT;
- printk("bttv%d: hack: userland args: %dx%d, fmt=%d, buf=%lx, len=%d\n",
- btv->nr,hack.width,hack.height,hack.format,
- hack.buf,hack.len);
-
- /* pin down */
- err = alloc_kiovec(1,&iobuf);
- if (err)
- goto hack_oops;
- err = map_user_kiobuf(READ, iobuf, hack.buf, hack.len);
- if (err)
- goto hack_oops;
- err = lock_kiovec(1,&iobuf,1);
- if (err)
- goto hack_oops;
-
- /* have a look */
- printk("bttv%d: hack: kiobuf: nr_pages=%d, offset=%d, length=%d, locked=%d\n",
- btv->nr,iobuf->nr_pages,iobuf->offset,iobuf->length,
- iobuf->locked);
- printk("bttv%d: hack: pages (bus addr):",btv->nr);
- for (i = 0; i < iobuf->nr_pages; i++) {
- printk(" %lx", virt_to_bus(page_address(iobuf->maplist[i])));
- }
- printk("\n");
-
- /* start capture */
- err = -EINVAL;
- if (hack.height * hack.width * 2 * /* fixme: *2 */
- fmtbppx2[palette2fmt[hack.format]&0x0f]/2 > hack.len)
- goto hack_oops;
- err = vgrab_kiobuf(btv,&hack,iobuf);
- if (err)
- goto hack_oops;
- printk("bttv%d: hack: capture started\n",btv->nr);
-
- /* wait */
- add_wait_queue(&btv->capq, &wait);
- current->state = TASK_INTERRUPTIBLE;
- while(btv->gbuf[0].stat==GBUFFER_GRABBING) {
- if (bttv_debug)
- printk("bttv%d: hack: cap sync: sleep on %d\n",btv->nr,0);
- schedule();
-#if 0
- if(signal_pending(current)) {
- remove_wait_queue(&btv->capq, &wait);
- current->state = TASK_RUNNING;
- return -EINTR;
- }
-#endif
- }
- remove_wait_queue(&btv->capq, &wait);
- current->state = TASK_RUNNING;
- printk("bttv%d: hack: capture done\n",btv->nr);
-
- /* release */
- err = 0;
- hack_oops:
- free_kiovec(1,&iobuf);
- return 0;
- }
-#endif
-
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int bttv_init_done(struct video_device *dev)
-{
- return 0;
-}
-
-/*
- * This maps the vmalloced and reserved fbuffer to user space.
- *
- * FIXME:
- * - PAGE_READONLY should suffice!?
- * - remap_page_range is kind of inefficient for page by page remapping.
- * But e.g. pte_alloc() does not work in modules ... :-(
- */
-
-static int do_bttv_mmap(struct bttv *btv, const char *adr, unsigned long size)
-{
- unsigned long start=(unsigned long) adr;
- unsigned long page,pos;
-
- if (size>gbuffers*gbufsize)
- return -EINVAL;
- if (!btv->fbuffer) {
- if(fbuffer_alloc(btv))
- return -EINVAL;
- }
- pos=(unsigned long) btv->fbuffer;
- while (size > 0) {
- page = kvirt_to_pa(pos);
- if (remap_page_range(start, page, PAGE_SIZE, PAGE_SHARED))
- return -EAGAIN;
- start+=PAGE_SIZE;
- pos+=PAGE_SIZE;
- size-=PAGE_SIZE;
- }
- return 0;
-}
-
-static int bttv_mmap(struct video_device *dev, const char *adr, unsigned long size)
-{
- struct bttv *btv=(struct bttv *)dev;
- int r;
-
- down(&btv->lock);
- r=do_bttv_mmap(btv, adr, size);
- up(&btv->lock);
- return r;
-}
-
-
-static struct video_device bttv_template=
-{
- "UNSET",
- VID_TYPE_TUNER|VID_TYPE_CAPTURE|VID_TYPE_OVERLAY|VID_TYPE_TELETEXT,
- VID_HARDWARE_BT848,
- bttv_open,
- bttv_close,
- bttv_read,
- bttv_write,
- NULL,
- bttv_ioctl,
- bttv_mmap,
- bttv_init_done,
- NULL,
- 0,
- -1
-};
-
-
-static long vbi_read(struct video_device *v, char *buf, unsigned long count,
- int nonblock)
-{
- struct bttv *btv=(struct bttv *)(v-2);
- int q,todo;
- DECLARE_WAITQUEUE(wait, current);
-
- todo=count;
- while (todo && todo>(q=VBIBUF_SIZE-btv->vbip))
- {
- if (btv->needs_restart) {
- down(&btv->lock);
- bt848_restart(btv);
- up(&btv->lock);
- }
- if(copy_to_user((void *) buf, (void *) btv->vbibuf+btv->vbip, q))
- return -EFAULT;
- todo-=q;
- buf+=q;
-
- add_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_INTERRUPTIBLE;
- if (todo && q==VBIBUF_SIZE-btv->vbip)
- {
- if(nonblock)
- {
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
- if(count==todo)
- return -EWOULDBLOCK;
- return count-todo;
- }
- schedule();
- if(signal_pending(current))
- {
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
- if(todo==count)
- return -EINTR;
- else
- return count-todo;
- }
- }
- remove_wait_queue(&btv->vbiq, &wait);
- current->state = TASK_RUNNING;
- }
- if (todo)
- {
- if(copy_to_user((void *) buf, (void *) btv->vbibuf+btv->vbip, todo))
- return -EFAULT;
- btv->vbip+=todo;
- }
- return count;
-}
-
-static unsigned int vbi_poll(struct video_device *dev, struct file *file,
- poll_table *wait)
-{
- struct bttv *btv=(struct bttv *)(dev-2);
- unsigned int mask = 0;
-
- poll_wait(file, &btv->vbiq, wait);
-
- if (btv->vbip < VBIBUF_SIZE)
- mask |= (POLLIN | POLLRDNORM);
-
- return mask;
-}
-
-static int vbi_open(struct video_device *dev, int flags)
-{
- struct bttv *btv=(struct bttv *)(dev-2);
- unsigned long irq_flags;
-
- MOD_INC_USE_COUNT;
- down(&btv->lock);
- if (btv->needs_restart)
- bt848_restart(btv);
- set_pll(btv);
- btv->vbip=VBIBUF_SIZE;
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- btv->vbi_on = 1;
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- up(&btv->lock);
-
- return 0;
-}
-
-static void vbi_close(struct video_device *dev)
-{
- struct bttv *btv=(struct bttv *)(dev-2);
- unsigned long irq_flags;
-
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- btv->vbi_on = 0;
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
- MOD_DEC_USE_COUNT;
-}
-
-static int vbi_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
- struct bttv *btv=(struct bttv *)dev;
-
- switch (cmd) {
- case VIDIOCGCAP:
- {
- struct video_capability b;
- strcpy(b.name,btv->vbi_dev.name);
- b.type = ((bttv_tvcards[btv->type].tuner != -1) ? VID_TYPE_TUNER : 0) |
- VID_TYPE_TELETEXT;
- b.channels = 0;
- b.audios = 0;
- b.maxwidth = 0;
- b.maxheight = 0;
- b.minwidth = 0;
- b.minheight = 0;
- if(copy_to_user(arg,&b,sizeof(b)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCGFREQ:
- case VIDIOCSFREQ:
- return bttv_ioctl((struct video_device *)btv,cmd,arg);
- case BTTV_VBISIZE:
- /* make alevt happy :-) */
- return VBIBUF_SIZE;
- default:
- return -EINVAL;
- }
-}
-
-static struct video_device vbi_template=
-{
- "bttv vbi",
- VID_TYPE_CAPTURE|VID_TYPE_TELETEXT,
- VID_HARDWARE_BT848,
- vbi_open,
- vbi_close,
- vbi_read,
- bttv_write,
- vbi_poll,
- vbi_ioctl,
- NULL, /* no mmap yet */
- bttv_init_done,
- NULL,
- 0,
- -1
-};
-
-
-static int radio_open(struct video_device *dev, int flags)
-{
- struct bttv *btv = (struct bttv *)(dev-1);
- unsigned long v;
-
- MOD_INC_USE_COUNT;
- down(&btv->lock);
- if (btv->user)
- goto busy_unlock;
- btv->user++;
-
- btv->radio = 1;
- v = 400*16;
- bttv_call_i2c_clients(btv,VIDIOCSFREQ,&v);
- bttv_call_i2c_clients(btv,AUDC_SET_RADIO,&btv->tuner_type);
- bt848_muxsel(btv,0);
- up(&btv->lock);
-
- return 0;
-
- busy_unlock:
- up(&btv->lock);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
-}
-
-static void radio_close(struct video_device *dev)
-{
- struct bttv *btv=(struct bttv *)(dev-1);
-
- down(&btv->lock);
- btv->user--;
- btv->radio = 0;
- up(&btv->lock);
- MOD_DEC_USE_COUNT;
-}
-
-static long radio_read(struct video_device *v, char *buf, unsigned long count, int nonblock)
-{
- return -EINVAL;
-}
-
-static int radio_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
- struct bttv *btv=(struct bttv *)(dev-1);
- switch (cmd) {
- case VIDIOCGCAP:
- {
- struct video_capability v;
- strcpy(v.name,btv->video_dev.name);
- v.type = VID_TYPE_TUNER;
- v.channels = 1;
- v.audios = 1;
- /* No we don't do pictures */
- v.maxwidth = 0;
- v.maxheight = 0;
- v.minwidth = 0;
- v.minheight = 0;
- if (copy_to_user(arg, &v, sizeof(v)))
- return -EFAULT;
- return 0;
- break;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner v;
- if(copy_from_user(&v,arg,sizeof(v))!=0)
- return -EFAULT;
- if(v.tuner||btv->channel) /* Only tuner 0 */
- return -EINVAL;
- strcpy(v.name, "Radio");
- v.rangelow=(int)(76*16); /* jp: 76.0MHz - 89.9MHz */
- v.rangehigh=(int)(108*16); /* eu: 87.5MHz - 108.0MHz */
- v.flags= 0; /* XXX */
- v.mode = 0; /* XXX */
- if(copy_to_user(arg,&v,sizeof(v)))
- return -EFAULT;
- return 0;
- }
- case VIDIOCSTUNER:
- {
- struct video_tuner v;
- if(copy_from_user(&v, arg, sizeof(v)))
- return -EFAULT;
- /* Only channel 0 has a tuner */
- if(v.tuner!=0 || btv->channel)
- return -EINVAL;
- /* XXX anything to do ??? */
- return 0;
- }
- case VIDIOCGFREQ:
- case VIDIOCSFREQ:
- case VIDIOCGAUDIO:
- case VIDIOCSAUDIO:
- bttv_ioctl((struct video_device *)btv,cmd,arg);
- break;
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static struct video_device radio_template=
-{
- "bttv radio",
- VID_TYPE_TUNER,
- VID_HARDWARE_BT848,
- radio_open,
- radio_close,
- radio_read, /* just returns -EINVAL */
- bttv_write, /* just returns -EINVAL */
- NULL, /* no poll */
- radio_ioctl,
- NULL, /* no mmap */
- bttv_init_done, /* just returns 0 */
- NULL,
- 0,
- -1
-};
-
-
-#define TRITON_PCON 0x50
-#define TRITON_BUS_CONCURRENCY (1<<0)
-#define TRITON_STREAMING (1<<1)
-#define TRITON_WRITE_BURST (1<<2)
-#define TRITON_PEER_CONCURRENCY (1<<3)
-
-
-static void __devinit handle_chipset(void)
-{
- struct pci_dev *dev = NULL;
-
- /* Just in case some nut set this to something dangerous */
- if (triton1)
- triton1=BT848_INT_ETBF;
-
- while ((dev = pci_find_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, dev)))
- {
- /* Beware the SiS 85C496 my friend - rev 49 don't work with a bttv */
- printk(KERN_WARNING "BT848 and SIS 85C496 chipset don't always work together.\n");
- }
-
- while ((dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_82441, dev)))
- {
- unsigned char b;
- pci_read_config_byte(dev, 0x53, &b);
- DEBUG(printk(KERN_INFO "bttv: Host bridge: 82441FX Natoma, "));
- DEBUG(printk("bufcon=0x%02x\n",b));
- }
-
- while ((dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, dev)))
- {
- printk(KERN_INFO "bttv: Host bridge 82437FX Triton PIIX\n");
- triton1=BT848_INT_ETBF;
- }
-}
-
-
-static void bt848_set_risc_jmps(struct bttv *btv, int flags)
-{
- if (-1 == flags) {
- /* defaults */
- flags = 0;
- if (btv->scr_on)
- flags |= 0x03;
- if (btv->vbi_on)
- flags |= 0x0c;
- }
-
- if (bttv_debug > 1)
- printk("bttv%d: set_risc_jmp %08lx:",
- btv->nr,virt_to_bus(btv->risc_jmp));
-
- /* Sync to start of odd field */
- btv->risc_jmp[0]=cpu_to_le32(BT848_RISC_SYNC|BT848_RISC_RESYNC
- |BT848_FIFO_STATUS_VRE);
- btv->risc_jmp[1]=cpu_to_le32(0);
-
- /* Jump to odd vbi sub */
- btv->risc_jmp[2]=cpu_to_le32(BT848_RISC_JUMP|(0xd<<20));
- if (flags&8) {
- if (bttv_debug > 1)
- printk(" ev=%08lx",virt_to_bus(btv->vbi_odd));
- btv->risc_jmp[3]=cpu_to_le32(virt_to_bus(btv->vbi_odd));
- } else {
- if (bttv_debug > 1)
- printk(" -----------");
- btv->risc_jmp[3]=cpu_to_le32(virt_to_bus(btv->risc_jmp+4));
- }
-
- /* Jump to odd sub */
- btv->risc_jmp[4]=cpu_to_le32(BT848_RISC_JUMP|(0xe<<20));
- if (0 != btv->risc_cap_odd) {
- if (bttv_debug > 1)
- printk(" e%d=%08x",btv->gq_grab,btv->risc_cap_odd);
- flags |= 3;
- btv->risc_jmp[5]=cpu_to_le32(btv->risc_cap_odd);
- } else if (flags&2) {
- if (bttv_debug > 1)
- printk(" eo=%08lx",virt_to_bus(btv->risc_scr_odd));
- btv->risc_jmp[5]=cpu_to_le32(virt_to_bus(btv->risc_scr_odd));
- } else {
- if (bttv_debug > 1)
- printk(" -----------");
- btv->risc_jmp[5]=cpu_to_le32(virt_to_bus(btv->risc_jmp+6));
- }
-
-
- /* Sync to start of even field */
- btv->risc_jmp[6]=cpu_to_le32(BT848_RISC_SYNC|BT848_RISC_RESYNC
- |BT848_FIFO_STATUS_VRO);
- btv->risc_jmp[7]=cpu_to_le32(0);
-
- /* Jump to even vbi sub */
- btv->risc_jmp[8]=cpu_to_le32(BT848_RISC_JUMP);
- if (flags&4) {
- if (bttv_debug > 1)
- printk(" ov=%08lx",virt_to_bus(btv->vbi_even));
- btv->risc_jmp[9]=cpu_to_le32(virt_to_bus(btv->vbi_even));
- } else {
- if (bttv_debug > 1)
- printk(" -----------");
- btv->risc_jmp[9]=cpu_to_le32(virt_to_bus(btv->risc_jmp+10));
- }
-
- /* Jump to even sub */
- btv->risc_jmp[10]=cpu_to_le32(BT848_RISC_JUMP|(8<<20));
- if (0 != btv->risc_cap_even) {
- if (bttv_debug > 1)
- printk(" o%d=%08x",btv->gq_grab,btv->risc_cap_even);
- flags |= 3;
- btv->risc_jmp[11]=cpu_to_le32(btv->risc_cap_even);
- } else if (flags&1) {
- if (bttv_debug > 1)
- printk(" oo=%08lx",virt_to_bus(btv->risc_scr_even));
- btv->risc_jmp[11]=cpu_to_le32(virt_to_bus(btv->risc_scr_even));
- } else {
- if (bttv_debug > 1)
- printk(" -----------");
- btv->risc_jmp[11]=cpu_to_le32(virt_to_bus(btv->risc_jmp+12));
- }
-
- if (btv->gq_start) {
- btv->risc_jmp[12]=cpu_to_le32(BT848_RISC_JUMP|(0x8<<16)|BT848_RISC_IRQ);
- } else {
- btv->risc_jmp[12]=cpu_to_le32(BT848_RISC_JUMP);
- }
- btv->risc_jmp[13]=cpu_to_le32(virt_to_bus(btv->risc_jmp));
-
- /* enable cpaturing and DMA */
- if (bttv_debug > 1)
- printk(" flags=0x%x dma=%s\n",
- flags,(flags&0x0f) ? "on" : "off");
- btaor(flags, ~0x0f, BT848_CAP_CTL);
- if (flags&0x0f)
- bt848_dma(btv, 3);
- else
- bt848_dma(btv, 0);
-}
-
-static int __devinit init_video_dev(struct bttv *btv)
-{
- memcpy(&btv->video_dev,&bttv_template, sizeof(bttv_template));
- memcpy(&btv->vbi_dev,&vbi_template, sizeof(vbi_template));
- memcpy(&btv->radio_dev,&radio_template,sizeof(radio_template));
-
- bttv_idcard(btv);
- audio(btv, AUDIO_MUTE, 1);
-
- if(video_register_device(&btv->video_dev,VFL_TYPE_GRABBER)<0)
- return -1;
- if(video_register_device(&btv->vbi_dev,VFL_TYPE_VBI)<0)
- {
- video_unregister_device(&btv->video_dev);
- return -1;
- }
- if (radio[btv->nr])
- {
- if(video_register_device(&btv->radio_dev, VFL_TYPE_RADIO)<0)
- {
- video_unregister_device(&btv->vbi_dev);
- video_unregister_device(&btv->video_dev);
- return -1;
- }
- }
- return 1;
-}
-
-static int __devinit init_bt848(struct bttv *btv)
-{
- int j;
- unsigned long irq_flags;
-
- btv->user=0;
- init_MUTEX(&btv->lock);
-
- /* dump current state of the gpio registers before changing them,
- * might help to make a new card work */
- if (bttv_verbose >= 2)
- printk("bttv%d: gpio: out_enable=0x%x, data=0x%x, in=0x%x\n",
- btv->nr,
- btread(BT848_GPIO_OUT_EN),
- btread(BT848_GPIO_DATA),
- btread(BT848_GPIO_REG_INP));
-
- /* reset the bt848 */
- btwrite(0, BT848_SRESET);
- DEBUG(printk(KERN_DEBUG "bttv%d: bt848_mem: 0x%lx\n", btv->nr, (unsigned long) btv->bt848_mem));
-
- /* not registered yet */
- btv->video_dev.minor = -1;
- btv->radio_dev.minor = -1;
- btv->vbi_dev.minor = -1;
-
- /* default setup for max. PAL size in a 1024xXXX hicolor framebuffer */
- btv->win.norm=0; /* change this to 1 for NTSC, 2 for SECAM */
- btv->win.interlace=1;
- btv->win.x=0;
- btv->win.y=0;
- btv->win.width=768; /* 640 */
- btv->win.height=576; /* 480 */
- btv->win.bpp=2;
- btv->win.depth=16;
- btv->win.color_fmt=BT848_COLOR_FMT_RGB16;
- btv->win.bpl=1024*btv->win.bpp;
- btv->win.swidth=1024;
- btv->win.sheight=768;
- btv->win.vidadr=0;
- btv->vbi_on=0;
- btv->scr_on=0;
-
- btv->risc_scr_odd=0;
- btv->risc_scr_even=0;
- btv->risc_cap_odd=0;
- btv->risc_cap_even=0;
- btv->risc_jmp=0;
- btv->vbibuf=0;
- btv->field=btv->last_field=0;
-
- btv->errors=0;
- btv->needs_restart=0;
-
- /* i2c */
- btv->tuner_type=-1;
- init_bttv_i2c(btv);
-
- if (!(btv->risc_scr_odd=(unsigned int *) kmalloc(RISCMEM_LEN/2, GFP_KERNEL)))
- return -1;
- if (!(btv->risc_scr_even=(unsigned int *) kmalloc(RISCMEM_LEN/2, GFP_KERNEL)))
- return -1;
- if (!(btv->risc_jmp =(unsigned int *) kmalloc(2048, GFP_KERNEL)))
- return -1;
- btv->vbi_odd=btv->risc_jmp+16;
- btv->vbi_even=btv->vbi_odd+256;
- btv->bus_vbi_odd=virt_to_bus(btv->risc_jmp+12);
- btv->bus_vbi_even=virt_to_bus(btv->risc_jmp+6);
-
- btwrite(virt_to_bus(btv->risc_jmp+2), BT848_RISC_STRT_ADD);
- btv->vbibuf=(unsigned char *) vmalloc_32(VBIBUF_SIZE);
- if (!btv->vbibuf)
- return -1;
- if (!(btv->gbuf = kmalloc(sizeof(struct bttv_gbuf)*gbuffers,GFP_KERNEL)))
- return -1;
- for (j = 0; j < gbuffers; j++) {
- if (!(btv->gbuf[j].risc = kmalloc(16384,GFP_KERNEL)))
- return -1;
- }
-
- memset(btv->vbibuf, 0, VBIBUF_SIZE); /* We don't want to return random
- memory to the user */
-
- btv->fbuffer=NULL;
-
- bt848_muxsel(btv, 1);
- bt848_set_winsize(btv);
-
-/* btwrite(0, BT848_TDEC); */
- btwrite(0x10, BT848_COLOR_CTL);
- btwrite(0x00, BT848_CAP_CTL);
- /* set planar and packed mode trigger points and */
- /* set rising edge of inverted GPINTR pin as irq trigger */
- btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
- BT848_GPIO_DMA_CTL_PLTP1_16|
- BT848_GPIO_DMA_CTL_PLTP23_16|
- BT848_GPIO_DMA_CTL_GPINTC|
- BT848_GPIO_DMA_CTL_GPINTI,
- BT848_GPIO_DMA_CTL);
-
- /* select direct input */
- btwrite(0x00, BT848_GPIO_REG_INP);
-
- btwrite(BT848_IFORM_MUX1 | BT848_IFORM_XTAUTO | BT848_IFORM_AUTO,
- BT848_IFORM);
-
- btwrite(0xd8, BT848_CONTRAST_LO);
- bt848_bright(btv, 0x10);
-
- btwrite(0x20, BT848_E_VSCALE_HI);
- btwrite(0x20, BT848_O_VSCALE_HI);
- btwrite(/*BT848_ADC_SYNC_T|*/
- BT848_ADC_RESERVED|BT848_ADC_CRUSH, BT848_ADC);
-
- btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
- btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
-
- btv->picture.colour=254<<7;
- btv->picture.brightness=128<<8;
- btv->picture.hue=128<<8;
- btv->picture.contrast=0xd8<<7;
-
- btwrite(0x00, BT848_E_SCLOOP);
- btwrite(0x00, BT848_O_SCLOOP);
-
- /* clear interrupt status */
- btwrite(0xfffffUL, BT848_INT_STAT);
-
- /* set interrupt mask */
- btwrite(btv->triton1|
- /*BT848_INT_PABORT|BT848_INT_RIPERR|BT848_INT_PPERR|
- BT848_INT_FDSR|BT848_INT_FTRGT|BT848_INT_FBUS|*/
- (fieldnr ? BT848_INT_VSYNC : 0)|
- BT848_INT_GPINT|
- BT848_INT_SCERR|
- BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
- BT848_INT_FMTCHG|BT848_INT_HLOCK,
- BT848_INT_MASK);
-
- make_vbitab(btv);
- spin_lock_irqsave(&btv->s_lock, irq_flags);
- bt848_set_risc_jmps(btv,-1);
- spin_unlock_irqrestore(&btv->s_lock, irq_flags);
-
- /*
- * Now add the template and register the device unit.
- */
- init_video_dev(btv);
-
- return 0;
-}
-
-static void bttv_irq(int irq, void *dev_id, struct pt_regs * regs)
-{
- u32 stat,astat;
- u32 dstat;
- int count,i;
- struct bttv *btv;
-
- btv=(struct bttv *)dev_id;
- count=0;
- while (1)
- {
- /* get/clear interrupt status bits */
- stat=btread(BT848_INT_STAT);
- astat=stat&btread(BT848_INT_MASK);
- if (!astat)
- return;
- btwrite(astat,BT848_INT_STAT);
- IDEBUG(printk ("bttv%d: astat=%08x\n", btv->nr, astat));
- IDEBUG(printk ("bttv%d: stat=%08x\n", btv->nr, stat));
-
- /* get device status bits */
- dstat=btread(BT848_DSTATUS);
-
- if (astat&BT848_INT_GPINT) {
- IDEBUG(printk ("bttv%d: IRQ_GPINT\n", btv->nr));
- wake_up_interruptible(&btv->gpioq);
- }
-
- if (astat&BT848_INT_FMTCHG)
- {
- IDEBUG(printk ("bttv%d: IRQ_FMTCHG\n", btv->nr));
- /*btv->win.norm&=
- (dstat&BT848_DSTATUS_NUML) ? (~1) : (~0); */
- }
- if (astat&BT848_INT_VPRES)
- {
- IDEBUG(printk ("bttv%d: IRQ_VPRES\n", btv->nr));
- }
- if (astat&BT848_INT_VSYNC)
- {
- IDEBUG(printk ("bttv%d: IRQ_VSYNC\n", btv->nr));
- btv->field++;
- }
- if (astat&(BT848_INT_SCERR|BT848_INT_OCERR)) {
- if (bttv_verbose)
- printk("bttv%d: irq:%s%s risc_count=%08x\n",
- btv->nr,
- (astat&BT848_INT_SCERR) ? " SCERR" : "",
- (astat&BT848_INT_OCERR) ? " OCERR" : "",
- btread(BT848_RISC_COUNT));
- btv->errors++;
- if (btv->errors < BTTV_ERRORS) {
- spin_lock(&btv->s_lock);
- btand(~15, BT848_GPIO_DMA_CTL);
- btwrite(virt_to_bus(btv->risc_jmp+2),
- BT848_RISC_STRT_ADD);
- bt848_set_geo(btv,0);
- bt848_set_risc_jmps(btv,-1);
- spin_unlock(&btv->s_lock);
- } else {
- if (bttv_verbose)
- printk("bttv%d: aiee: error loops\n",btv->nr);
- /* cancel all outstanding grab requests */
- spin_lock(&btv->s_lock);
- btv->gq_in = 0;
- btv->gq_out = 0;
- btv->gq_grab = -1;
- for (i = 0; i < gbuffers; i++)
- if (btv->gbuf[i].stat == GBUFFER_GRABBING)
- btv->gbuf[i].stat = GBUFFER_ERROR;
- /* disable DMA */
- btv->risc_cap_odd = 0;
- btv->risc_cap_even = 0;
- bt848_set_risc_jmps(btv,0);
- btv->needs_restart = 1;
- spin_unlock(&btv->s_lock);
-
- wake_up_interruptible(&btv->vbiq);
- wake_up_interruptible(&btv->capq);
- }
- }
- if (astat&BT848_INT_RISCI)
- {
- if (bttv_debug > 1)
- printk("bttv%d: IRQ_RISCI\n",btv->nr);
-
- /* captured VBI frame */
- if (stat&(1<<28))
- {
- btv->vbip=0;
- /* inc vbi frame count for detecting drops */
- (*(u32 *)&(btv->vbibuf[VBIBUF_SIZE - 4]))++;
- wake_up_interruptible(&btv->vbiq);
- }
-
- /* captured full frame */
- if (stat&(2<<28) && btv->gq_grab != -1)
- {
- btv->last_field=btv->field;
- if (bttv_debug)
- printk("bttv%d: cap irq: done %d\n",btv->nr,btv->gq_grab);
- do_gettimeofday(&btv->gbuf[btv->gq_grab].tv);
- spin_lock(&btv->s_lock);
- btv->gbuf[btv->gq_grab].stat = GBUFFER_DONE;
- btv->gq_grab = -1;
- if (btv->gq_in != btv->gq_out)
- {
- btv->gq_grab = btv->gqueue[btv->gq_out++];
- btv->gq_out = btv->gq_out % MAX_GBUFFERS;
- if (bttv_debug)
- printk("bttv%d: cap irq: capture %d\n",btv->nr,btv->gq_grab);
- btv->risc_cap_odd = btv->gbuf[btv->gq_grab].ro;
- btv->risc_cap_even = btv->gbuf[btv->gq_grab].re;
- bt848_set_risc_jmps(btv,-1);
- bt848_set_geo(btv,0);
- btwrite(BT848_COLOR_CTL_GAMMA,
- BT848_COLOR_CTL);
- } else {
- btv->risc_cap_odd = 0;
- btv->risc_cap_even = 0;
- bt848_set_risc_jmps(btv,-1);
- bt848_set_geo(btv,0);
- btwrite(btv->fb_color_ctl | BT848_COLOR_CTL_GAMMA,
- BT848_COLOR_CTL);
- }
- spin_unlock(&btv->s_lock);
- wake_up_interruptible(&btv->capq);
- break;
- }
- if (stat&(8<<28))
- {
- spin_lock(&btv->s_lock);
- btv->gq_start = 0;
- btv->gq_grab = btv->gqueue[btv->gq_out++];
- btv->gq_out = btv->gq_out % MAX_GBUFFERS;
- if (bttv_debug)
- printk("bttv%d: cap irq: capture %d [start]\n",btv->nr,btv->gq_grab);
- btv->risc_cap_odd = btv->gbuf[btv->gq_grab].ro;
- btv->risc_cap_even = btv->gbuf[btv->gq_grab].re;
- bt848_set_risc_jmps(btv,-1);
- bt848_set_geo(btv,0);
- btwrite(BT848_COLOR_CTL_GAMMA,
- BT848_COLOR_CTL);
- spin_unlock(&btv->s_lock);
- }
- }
- if (astat&BT848_INT_OCERR)
- {
- IDEBUG(printk ("bttv%d: IRQ_OCERR\n", btv->nr));
- }
- if (astat&BT848_INT_PABORT)
- {
- IDEBUG(printk ("bttv%d: IRQ_PABORT\n", btv->nr));
- }
- if (astat&BT848_INT_RIPERR)
- {
- IDEBUG(printk ("bttv%d: IRQ_RIPERR\n", btv->nr));
- }
- if (astat&BT848_INT_PPERR)
- {
- IDEBUG(printk ("bttv%d: IRQ_PPERR\n", btv->nr));
- }
- if (astat&BT848_INT_FDSR)
- {
- IDEBUG(printk ("bttv%d: IRQ_FDSR\n", btv->nr));
- }
- if (astat&BT848_INT_FTRGT)
- {
- IDEBUG(printk ("bttv%d: IRQ_FTRGT\n", btv->nr));
- }
- if (astat&BT848_INT_FBUS)
- {
- IDEBUG(printk ("bttv%d: IRQ_FBUS\n", btv->nr));
- }
- if (astat&BT848_INT_HLOCK)
- {
- if ((dstat&BT848_DSTATUS_HLOC) || (btv->radio))
- audio(btv, AUDIO_ON,0);
- else
- audio(btv, AUDIO_OFF,0);
- }
-
- if (astat&BT848_INT_I2CDONE)
- {
- IDEBUG(printk ("bttv%d: IRQ_I2CDONE\n", btv->nr));
- }
- count++;
- if (count > 10)
- printk (KERN_WARNING "bttv%d: irq loop %d\n",
- btv->nr,count);
- if (count > 20)
- {
- btwrite(0, BT848_INT_MASK);
- printk(KERN_ERR
- "bttv%d: IRQ lockup, cleared int mask\n", btv->nr);
- }
- }
-}
-
-
-
-/*
- * Scan for a Bt848 card, request the irq and map the io memory
- */
-
-static void __devinit bttv_remove(struct pci_dev *pci_dev)
-{
- u8 command;
- int j;
- struct bttv *btv = PCI_GET_DRIVER_DATA(pci_dev);
-
- /* unregister i2c_bus */
- if (0 == btv->i2c_ok)
- i2c_bit_del_bus(&btv->i2c_adap);
-
- /* turn off all capturing, DMA and IRQs */
- btand(~15, BT848_GPIO_DMA_CTL);
-
- /* first disable interrupts before unmapping the memory! */
- btwrite(0, BT848_INT_MASK);
- btwrite(~0x0UL,BT848_INT_STAT);
- btwrite(0x0, BT848_GPIO_OUT_EN);
-
- /* disable PCI bus-mastering */
- pci_read_config_byte(btv->dev, PCI_COMMAND, &command);
- /* Should this be &=~ ?? */
- command&=~PCI_COMMAND_MASTER;
- pci_write_config_byte(btv->dev, PCI_COMMAND, command);
-
- /* unmap and free memory */
- for (j = 0; j < gbuffers; j++)
- if (btv->gbuf[j].risc)
- kfree(btv->gbuf[j].risc);
- if (btv->gbuf)
- kfree((void *) btv->gbuf);
-
- if (btv->risc_scr_odd)
- kfree((void *) btv->risc_scr_odd);
-
- if (btv->risc_scr_even)
- kfree((void *) btv->risc_scr_even);
-
- DEBUG(printk(KERN_DEBUG "free: risc_jmp: 0x%p.\n", btv->risc_jmp));
- if (btv->risc_jmp)
- kfree((void *) btv->risc_jmp);
-
- DEBUG(printk(KERN_DEBUG "bt848_vbibuf: 0x%p.\n", btv->vbibuf));
- if (btv->vbibuf)
- vfree((void *) btv->vbibuf);
-
- free_irq(btv->irq,btv);
- DEBUG(printk(KERN_DEBUG "bt848_mem: 0x%p.\n", btv->bt848_mem));
- if (btv->bt848_mem)
- iounmap(btv->bt848_mem);
-
- if(btv->video_dev.minor!=-1)
- video_unregister_device(&btv->video_dev);
- if(btv->vbi_dev.minor!=-1)
- video_unregister_device(&btv->vbi_dev);
- if (radio[btv->nr] && btv->radio_dev.minor != -1)
- video_unregister_device(&btv->radio_dev);
-
- release_mem_region(btv->bt848_adr,
- pci_resource_len(btv->dev,0));
- /* wake up any waiting processes
- because shutdown flag is set, no new processes (in this queue)
- are expected
- */
- btv->shutdown=1;
- wake_up(&btv->gpioq);
-
- return;
-}
-
-
-static int __devinit bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
-{
- int result;
- unsigned char command;
- struct bttv *btv;
-#if defined(__powerpc__)
- unsigned int cmd;
-#endif
-
- printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
-
- btv=&bttvs[bttv_num];
- btv->dev=dev;
- btv->nr = bttv_num;
- btv->bt848_mem=NULL;
- btv->vbibuf=NULL;
- btv->risc_jmp=NULL;
- btv->vbi_odd=NULL;
- btv->vbi_even=NULL;
- init_waitqueue_head(&btv->vbiq);
- init_waitqueue_head(&btv->capq);
- btv->vbip=VBIBUF_SIZE;
- btv->s_lock = SPIN_LOCK_UNLOCKED;
- init_waitqueue_head(&btv->gpioq);
- btv->shutdown=0;
-
- btv->id=dev->device;
- btv->irq=dev->irq;
- btv->bt848_adr=pci_resource_start(dev,0);
- if (pci_enable_device(dev))
- return -EIO;
- if (!request_mem_region(pci_resource_start(dev,0),
- pci_resource_len(dev,0),
- "bttv")) {
- return -EBUSY;
- }
- if (btv->id >= 878)
- btv->i2c_command = 0x83;
- else
- btv->i2c_command=(I2C_TIMING | BT848_I2C_SCL | BT848_I2C_SDA);
-
- pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
- printk(KERN_INFO "bttv%d: Brooktree Bt%d (rev %d) ",
- bttv_num,btv->id, btv->revision);
- printk("bus: %d, devfn: %d, ",dev->bus->number, dev->devfn);
- printk("irq: %d, ",btv->irq);
- printk("memory: 0x%lx.\n", btv->bt848_adr);
-
-#if defined(__powerpc__)
- /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
- /* response on cards with no firmware is not enabled by OF */
- pci_read_config_dword(dev, PCI_COMMAND, &cmd);
- cmd = (cmd | PCI_COMMAND_MEMORY );
- pci_write_config_dword(dev, PCI_COMMAND, cmd);
-#endif
-
-#ifdef __sparc__
- btv->bt848_mem=(unsigned char *)btv->bt848_adr;
-#else
- btv->bt848_mem=ioremap(btv->bt848_adr, 0x1000);
-#endif
-
- /* clear interrupt mask */
- btwrite(0, BT848_INT_MASK);
-
- result = request_irq(btv->irq, bttv_irq,
- SA_SHIRQ | SA_INTERRUPT,"bttv",(void *)btv);
- if (result==-EINVAL)
- {
- printk(KERN_ERR "bttv%d: Bad irq number or handler\n",
- bttv_num);
- goto fail;
- }
- if (result==-EBUSY)
- {
- printk(KERN_ERR "bttv%d: IRQ %d busy, change your PnP config in BIOS\n",bttv_num,btv->irq);
- goto fail;
- }
- if (result < 0)
- goto fail;
-
- pci_set_master(dev);
-
- btv->triton1=triton1 ? BT848_INT_ETBF : 0;
- if (triton1 && btv->id >= 878)
- {
- btv->triton1 = 0;
- printk("bttv: Enabling 430FX compatibilty for bt878\n");
- pci_read_config_byte(dev, BT878_DEVCTRL, &command);
- command|=BT878_EN_TBFX;
- pci_write_config_byte(dev, BT878_DEVCTRL, command);
- pci_read_config_byte(dev, BT878_DEVCTRL, &command);
- if (!(command&BT878_EN_TBFX))
- {
- printk("bttv: 430FX compatibility could not be enabled\n");
- free_irq(btv->irq,btv);
- result = -1;
- goto fail;
- }
- }
-
- PCI_SET_DRIVER_DATA(dev,btv);
-
- if(init_bt848(btv) < 0) {
- bttv_remove(dev);
- return -EIO;
- }
- bttv_num++;
-
- return 0;
-
- fail:
- release_mem_region(pci_resource_start(btv->dev,0),
- pci_resource_len(btv->dev,0));
- return result;
-}
-
-static struct pci_device_id bttv_pci_tbl[] __devinitdata = {
- {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
-
-static struct pci_driver bttv_pci_driver = {
- name: "bttv",
- id_table: bttv_pci_tbl,
- probe: bttv_probe,
- remove: bttv_remove,
-};
-
-int bttv_init_module(void)
-{
- bttv_num = 0;
-
- printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
- (BTTV_VERSION_CODE >> 16) & 0xff,
- (BTTV_VERSION_CODE >> 8) & 0xff,
- BTTV_VERSION_CODE & 0xff);
- if (gbuffers < 2 || gbuffers > MAX_GBUFFERS)
- gbuffers = 2;
- if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
- gbufsize = BTTV_MAX_FBUF;
- if (bttv_verbose)
- printk(KERN_INFO "bttv: using %d buffers with %dk (%dk total) for capture\n",
- gbuffers,gbufsize/1024,gbuffers*gbufsize/1024);
-
- handle_chipset();
-
- return pci_module_init(&bttv_pci_driver);
-}
-
-void bttv_cleanup_module(void)
-{
- pci_unregister_driver(&bttv_pci_driver);
- return;
-}
-
-module_init(bttv_init_module);
-module_exit(bttv_cleanup_module);
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)