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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [media/] [video/] [stradis.c] - Rev 1774
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/* * stradis.c - stradis 4:2:2 mpeg decoder driver * * Stradis 4:2:2 MPEG-2 Decoder Driver * Copyright (C) 1999 Nathan Laredo <laredo@gnu.org> * * 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/module.h> #include <linux/version.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/fs.h> #include <linux/kernel.h> #include <linux/major.h> #include <linux/slab.h> #include <linux/mm.h> #include <linux/init.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 <asm/types.h> #include <linux/types.h> #include <linux/wrapper.h> #include <linux/interrupt.h> #include <asm/uaccess.h> #include <linux/vmalloc.h> #include <linux/videodev.h> #include <linux/i2c-old.h> #include "saa7146.h" #include "saa7146reg.h" #include "ibmmpeg2.h" #include "saa7121.h" #include "cs8420.h" #define DEBUG(x) /* debug driver */ #undef IDEBUG /* debug irq handler */ #undef MDEBUG /* debug memory management */ #define SAA7146_MAX 6 static struct saa7146 saa7146s[SAA7146_MAX]; static int saa_num = 0; /* number of SAA7146s in use */ static int video_nr = -1; MODULE_PARM(video_nr,"i"); MODULE_LICENSE("GPL"); #define nDebNormal 0x00480000 #define nDebNoInc 0x00480000 #define nDebVideo 0xd0480000 #define nDebAudio 0xd0400000 #define nDebDMA 0x02c80000 #define oDebNormal 0x13c80000 #define oDebNoInc 0x13c80000 #define oDebVideo 0xd1080000 #define oDebAudio 0xd1080000 #define oDebDMA 0x03080000 #define NewCard (saa->boardcfg[3]) #define ChipControl (saa->boardcfg[1]) #define NTSCFirstActive (saa->boardcfg[4]) #define PALFirstActive (saa->boardcfg[5]) #define NTSCLastActive (saa->boardcfg[54]) #define PALLastActive (saa->boardcfg[55]) #define Have2MB (saa->boardcfg[18] & 0x40) #define HaveCS8420 (saa->boardcfg[18] & 0x04) #define IBMMPEGCD20 (saa->boardcfg[18] & 0x20) #define HaveCS3310 (saa->boardcfg[18] & 0x01) #define CS3310MaxLvl ((saa->boardcfg[30] << 8) | saa->boardcfg[31]) #define HaveCS4341 (saa->boardcfg[40] == 2) #define SDIType (saa->boardcfg[27]) #define CurrentMode (saa->boardcfg[2]) #define debNormal (NewCard ? nDebNormal : oDebNormal) #define debNoInc (NewCard ? nDebNoInc : oDebNoInc) #define debVideo (NewCard ? nDebVideo : oDebVideo) #define debAudio (NewCard ? nDebAudio : oDebAudio) #define debDMA (NewCard ? nDebDMA : oDebDMA) #ifdef DEBUG int stradis_driver(void) /* for the benefit of ksymoops */ { return 1; } #endif #ifdef USE_RESCUE_EEPROM_SDM275 static unsigned char rescue_eeprom[64] = { 0x00,0x01,0x04,0x13,0x26,0x0f,0x10,0x00,0x00,0x00,0x43,0x63,0x22,0x01,0x29,0x15,0x73,0x00,0x1f, 'd', 'e', 'c', 'x', 'l', 'd', 'v', 'a',0x02,0x00,0x01,0x00,0xcc,0xa4,0x63,0x09,0xe2,0x10,0x00,0x0a,0x00,0x02,0x02, 'd', 'e', 'c', 'x', 'l', 'a',0x00,0x00,0x42,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, }; #endif /* ----------------------------------------------------------------------- */ /* Hardware I2C functions */ static void I2CWipe(struct saa7146 *saa) { int i; /* set i2c to ~=100kHz, abort transfer, clear busy */ saawrite(0x600 | SAA7146_I2C_ABORT, SAA7146_I2C_STATUS); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); /* wait for i2c registers to be programmed */ for (i = 0; i < 1000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++) schedule(); saawrite(0x600, SAA7146_I2C_STATUS); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); /* wait for i2c registers to be programmed */ for (i = 0; i < 1000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++) schedule(); saawrite(0x600, SAA7146_I2C_STATUS); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); /* wait for i2c registers to be programmed */ for (i = 0; i < 1000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++) schedule(); } /* read I2C */ static int I2CRead(struct i2c_bus *bus, unsigned char addr, unsigned char subaddr, int dosub) { struct saa7146 *saa = (struct saa7146 *) bus->data; int i; if (saaread(SAA7146_I2C_STATUS) & 0x3c) I2CWipe(saa); for (i = 0; i < 1000 && (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY); i++) schedule(); if (i == 1000) I2CWipe(saa); if (dosub) saawrite(((addr & 0xfe) << 24) | (((addr | 1) & 0xff) << 8) | ((subaddr & 0xff) << 16) | 0xed, SAA7146_I2C_TRANSFER); else saawrite(((addr & 0xfe) << 24) | (((addr | 1) & 0xff) << 16) | 0xf1, SAA7146_I2C_TRANSFER); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); /* wait for i2c registers to be programmed */ for (i = 0; i < 1000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++) schedule(); /* wait for valid data */ for (i = 0; i < 1000 && (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY); i++) schedule(); if (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_ERR) return -1; if (i == 1000) printk("i2c setup read timeout\n"); saawrite(0x41, SAA7146_I2C_TRANSFER); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); /* wait for i2c registers to be programmed */ for (i = 0; i < 1000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_I2C); i++) schedule(); /* wait for valid data */ for (i = 0; i < 1000 && (saaread(SAA7146_I2C_TRANSFER) & SAA7146_I2C_BUSY); i++) schedule(); if (saaread(SAA7146_I2C_TRANSFER) & SAA7146_I2C_ERR) return -1; if (i == 1000) printk("i2c read timeout\n"); return ((saaread(SAA7146_I2C_TRANSFER) >> 24) & 0xff); } static int I2CReadOld(struct i2c_bus *bus, unsigned char addr) { return I2CRead(bus, addr, 0, 0); } /* set both to write both bytes, reset it to write only b1 */ static int I2CWrite(struct i2c_bus *bus, unsigned char addr, unsigned char b1, unsigned char b2, int both) { struct saa7146 *saa = (struct saa7146 *) bus->data; int i; u32 data; if (saaread(SAA7146_I2C_STATUS) & 0x3c) I2CWipe(saa); for (i = 0; i < 1000 && (saaread(SAA7146_I2C_STATUS) & SAA7146_I2C_BUSY); i++) schedule(); if (i == 1000) I2CWipe(saa); data = ((addr & 0xfe) << 24) | ((b1 & 0xff) << 16); if (both) data |= ((b2 & 0xff) << 8) | 0xe5; else data |= 0xd1; saawrite(data, SAA7146_I2C_TRANSFER); saawrite((SAA7146_MC2_UPLD_I2C << 16) | SAA7146_MC2_UPLD_I2C, SAA7146_MC2); return 0; } static void attach_inform(struct i2c_bus *bus, int id) { struct saa7146 *saa = (struct saa7146 *) bus->data; int i; DEBUG(printk(KERN_DEBUG "stradis%d: i2c: device found=%02x\n", saa->nr, id)); if (id == 0xa0) { /* we have rev2 or later board, fill in info */ for (i = 0; i < 64; i++) saa->boardcfg[i] = I2CRead(bus, 0xa0, i, 1); #ifdef USE_RESCUE_EEPROM_SDM275 if (saa->boardcfg[0] != 0) { printk("stradis%d: WARNING: EEPROM STORED VALUES HAVE BEEN IGNORED\n", saa->nr); for (i = 0; i < 64; i++) saa->boardcfg[i] = rescue_eeprom[i]; } #endif printk("stradis%d: config =", saa->nr); for (i = 0; i < 51; i++) { printk(" %02x",saa->boardcfg[i]); } printk("\n"); } } static void detach_inform(struct i2c_bus *bus, int id) { struct saa7146 *saa = (struct saa7146 *) bus->data; int i; i = saa->nr; } static void I2CBusScan(struct i2c_bus *bus) { int i; for (i = 0; i < 0xff; i += 2) if ((I2CRead(bus, i, 0, 0)) >= 0) attach_inform(bus, i); } static struct i2c_bus saa7146_i2c_bus_template = { "saa7146", I2C_BUSID_BT848, NULL, SPIN_LOCK_UNLOCKED, attach_inform, detach_inform, NULL, NULL, I2CReadOld, I2CWrite, }; static int debiwait_maxwait = 0; static int wait_for_debi_done(struct saa7146 *saa) { int i; /* wait for registers to be programmed */ for (i = 0; i < 100000 && !(saaread(SAA7146_MC2) & SAA7146_MC2_UPLD_DEBI); i++) saaread(SAA7146_MC2); /* wait for transfer to complete */ for (i = 0; i < 500000 && (saaread(SAA7146_PSR) & SAA7146_PSR_DEBI_S); i++) saaread(SAA7146_MC2); if (i > debiwait_maxwait) printk("wait-for-debi-done maxwait: %d\n", debiwait_maxwait = i); if (i == 500000) return -1; return 0; } static int debiwrite(struct saa7146 *saa, u32 config, int addr, u32 val, int count) { u32 cmd; if (count <= 0 || count > 32764) return -1; if (wait_for_debi_done(saa) < 0) return -1; saawrite(config, SAA7146_DEBI_CONFIG); if (count <= 4) /* immediate transfer */ saawrite(val, SAA7146_DEBI_AD); else /* block transfer */ saawrite(virt_to_bus(saa->dmadebi), SAA7146_DEBI_AD); saawrite((cmd = (count << 17) | (addr & 0xffff)), SAA7146_DEBI_COMMAND); saawrite((SAA7146_MC2_UPLD_DEBI << 16) | SAA7146_MC2_UPLD_DEBI, SAA7146_MC2); return 0; } static u32 debiread(struct saa7146 *saa, u32 config, int addr, int count) { u32 result = 0; if (count > 32764 || count <= 0) return 0; if (wait_for_debi_done(saa) < 0) return 0; saawrite(virt_to_bus(saa->dmadebi), SAA7146_DEBI_AD); saawrite((count << 17) | 0x10000 | (addr & 0xffff), SAA7146_DEBI_COMMAND); saawrite(config, SAA7146_DEBI_CONFIG); saawrite((SAA7146_MC2_UPLD_DEBI << 16) | SAA7146_MC2_UPLD_DEBI, SAA7146_MC2); if (count > 4) /* not an immediate transfer */ return count; wait_for_debi_done(saa); result = saaread(SAA7146_DEBI_AD); if (count == 1) result &= 0xff; if (count == 2) result &= 0xffff; if (count == 3) result &= 0xffffff; return result; } #if 0 /* unused */ /* MUST be a multiple of 8 bytes and 8-byte aligned and < 32768 bytes */ /* data copied into saa->dmadebi buffer, caller must re-enable interrupts */ static void ibm_block_dram_read(struct saa7146 *saa, int address, int bytes) { int i, j; u32 *buf; buf = (u32 *) saa->dmadebi; if (bytes > 0x7000) bytes = 0x7000; saawrite(0, SAA7146_IER); /* disable interrupts */ for (i=0; i < 10000 && (debiread(saa, debNormal, IBM_MP2_DRAM_CMD_STAT, 2) & 0x8000); i++) saaread(SAA7146_MC2); if (i == 10000) printk(KERN_ERR "stradis%d: dram_busy never cleared\n", saa->nr); debiwrite(saa, debNormal, IBM_MP2_SRC_ADDR, (address<<16) | (address>>16), 4); debiwrite(saa, debNormal, IBM_MP2_BLOCK_SIZE, bytes, 2); debiwrite(saa, debNormal, IBM_MP2_CMD_STAT, 0x8a10, 2); for (j = 0; j < bytes/4; j++) { for (i = 0; i < 10000 && (!(debiread(saa, debNormal, IBM_MP2_DRAM_CMD_STAT, 2) & 0x4000)); i++) saaread(SAA7146_MC2); if (i == 10000) printk(KERN_ERR "stradis%d: dram_ready never set\n", saa->nr); buf[j] = debiread(saa, debNormal, IBM_MP2_DRAM_DATA, 4); } } #endif /* unused */ static void do_irq_send_data(struct saa7146 *saa) { int split, audbytes, vidbytes; saawrite(SAA7146_PSR_PIN1, SAA7146_IER); /* if special feature mode in effect, disable audio sending */ if (saa->playmode != VID_PLAY_NORMAL) saa->audtail = saa->audhead = 0; if (saa->audhead <= saa->audtail) audbytes = saa->audtail - saa->audhead; else audbytes = 65536 - (saa->audhead - saa->audtail); if (saa->vidhead <= saa->vidtail) vidbytes = saa->vidtail - saa->vidhead; else vidbytes = 524288 - (saa->vidhead - saa->vidtail); if (audbytes == 0 && vidbytes == 0 && saa->osdtail == saa->osdhead) { saawrite(0, SAA7146_IER); return; } /* if at least 1 block audio waiting and audio fifo isn't full */ if (audbytes >= 2048 && (debiread(saa, debNormal, IBM_MP2_AUD_FIFO, 2) & 0xff) < 60) { if (saa->audhead > saa->audtail) split = 65536 - saa->audhead; else split = 0; audbytes = 2048; if (split > 0 && split < 2048) { memcpy(saa->dmadebi, saa->audbuf + saa->audhead, split); saa->audhead = 0; audbytes -= split; } else split = 0; memcpy(saa->dmadebi + split, saa->audbuf + saa->audhead, audbytes); saa->audhead += audbytes; saa->audhead &= 0xffff; debiwrite(saa, debAudio, (NewCard? IBM_MP2_AUD_FIFO : IBM_MP2_AUD_FIFOW), 0, 2048); wake_up_interruptible(&saa->audq); /* if at least 1 block video waiting and video fifo isn't full */ } else if (vidbytes >= 30720 && (debiread(saa, debNormal, IBM_MP2_FIFO, 2)) < 16384) { if (saa->vidhead > saa->vidtail) split = 524288 - saa->vidhead; else split = 0; vidbytes = 30720; if (split > 0 && split < 30720) { memcpy(saa->dmadebi, saa->vidbuf + saa->vidhead, split); saa->vidhead = 0; vidbytes -= split; } else split = 0; memcpy(saa->dmadebi + split, saa->vidbuf + saa->vidhead, vidbytes); saa->vidhead += vidbytes; saa->vidhead &= 0x7ffff; debiwrite(saa, debVideo, (NewCard ? IBM_MP2_FIFO : IBM_MP2_FIFOW), 0, 30720); wake_up_interruptible(&saa->vidq); } saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER); } static void send_osd_data(struct saa7146 *saa) { int size = saa->osdtail - saa->osdhead; if (size > 30720) size = 30720; /* ensure some multiple of 8 bytes is transferred */ size = 8 * ((size + 8)>>3); if (size) { debiwrite(saa, debNormal, IBM_MP2_OSD_ADDR, (saa->osdhead>>3), 2); memcpy(saa->dmadebi, &saa->osdbuf[saa->osdhead], size); saa->osdhead += size; /* block transfer of next 8 bytes to ~32k bytes */ debiwrite(saa, debNormal, IBM_MP2_OSD_DATA, 0, size); } if (saa->osdhead >= saa->osdtail) { saa->osdhead = saa->osdtail = 0; debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2); } } static void saa7146_irq(int irq, void *dev_id, struct pt_regs *regs) { struct saa7146 *saa = (struct saa7146 *) dev_id; u32 stat, astat; int count; count = 0; while (1) { /* get/clear interrupt status bits */ stat = saaread(SAA7146_ISR); astat = stat & saaread(SAA7146_IER); if (!astat) return; saawrite(astat, SAA7146_ISR); if (astat & SAA7146_PSR_DEBI_S) { do_irq_send_data(saa); } if (astat & SAA7146_PSR_PIN1) { int istat; /* the following read will trigger DEBI_S */ istat = debiread(saa, debNormal, IBM_MP2_HOST_INT, 2); if (istat & 1) { saawrite(0, SAA7146_IER); send_osd_data(saa); saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER); } if (istat & 0x20) { /* Video Start */ saa->vidinfo.frame_count++; } if (istat & 0x400) { /* Picture Start */ /* update temporal reference */ } if (istat & 0x200) { /* Picture Resolution Change */ /* read new resolution */ } if (istat & 0x100) { /* New User Data found */ /* read new user data */ } if (istat & 0x1000) { /* new GOP/SMPTE */ /* read new SMPTE */ } if (istat & 0x8000) { /* Sequence Start Code */ /* reset frame counter, load sizes */ saa->vidinfo.frame_count = 0; saa->vidinfo.h_size = 704; saa->vidinfo.v_size = 480; #if 0 if (saa->endmarkhead != saa->endmarktail) { saa->audhead = saa->endmark[saa->endmarkhead]; saa->endmarkhead++; if (saa->endmarkhead >= MAX_MARKS) saa->endmarkhead = 0; } #endif } if (istat & 0x4000) { /* Sequence Error Code */ if (saa->endmarkhead != saa->endmarktail) { saa->audhead = saa->endmark[saa->endmarkhead]; saa->endmarkhead++; if (saa->endmarkhead >= MAX_MARKS) saa->endmarkhead = 0; } } } #ifdef IDEBUG if (astat & SAA7146_PSR_PPEF) { IDEBUG(printk("stradis%d irq: PPEF\n", saa->nr)); } if (astat & SAA7146_PSR_PABO) { IDEBUG(printk("stradis%d irq: PABO\n", saa->nr)); } if (astat & SAA7146_PSR_PPED) { IDEBUG(printk("stradis%d irq: PPED\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_I1) { IDEBUG(printk("stradis%d irq: RPS_I1\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_I0) { IDEBUG(printk("stradis%d irq: RPS_I0\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_LATE1) { IDEBUG(printk("stradis%d irq: RPS_LATE1\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_LATE0) { IDEBUG(printk("stradis%d irq: RPS_LATE0\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_E1) { IDEBUG(printk("stradis%d irq: RPS_E1\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_E0) { IDEBUG(printk("stradis%d irq: RPS_E0\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_TO1) { IDEBUG(printk("stradis%d irq: RPS_TO1\n", saa->nr)); } if (astat & SAA7146_PSR_RPS_TO0) { IDEBUG(printk("stradis%d irq: RPS_TO0\n", saa->nr)); } if (astat & SAA7146_PSR_UPLD) { IDEBUG(printk("stradis%d irq: UPLD\n", saa->nr)); } if (astat & SAA7146_PSR_DEBI_E) { IDEBUG(printk("stradis%d irq: DEBI_E\n", saa->nr)); } if (astat & SAA7146_PSR_I2C_S) { IDEBUG(printk("stradis%d irq: I2C_S\n", saa->nr)); } if (astat & SAA7146_PSR_I2C_E) { IDEBUG(printk("stradis%d irq: I2C_E\n", saa->nr)); } if (astat & SAA7146_PSR_A2_IN) { IDEBUG(printk("stradis%d irq: A2_IN\n", saa->nr)); } if (astat & SAA7146_PSR_A2_OUT) { IDEBUG(printk("stradis%d irq: A2_OUT\n", saa->nr)); } if (astat & SAA7146_PSR_A1_IN) { IDEBUG(printk("stradis%d irq: A1_IN\n", saa->nr)); } if (astat & SAA7146_PSR_A1_OUT) { IDEBUG(printk("stradis%d irq: A1_OUT\n", saa->nr)); } if (astat & SAA7146_PSR_AFOU) { IDEBUG(printk("stradis%d irq: AFOU\n", saa->nr)); } if (astat & SAA7146_PSR_V_PE) { IDEBUG(printk("stradis%d irq: V_PE\n", saa->nr)); } if (astat & SAA7146_PSR_VFOU) { IDEBUG(printk("stradis%d irq: VFOU\n", saa->nr)); } if (astat & SAA7146_PSR_FIDA) { IDEBUG(printk("stradis%d irq: FIDA\n", saa->nr)); } if (astat & SAA7146_PSR_FIDB) { IDEBUG(printk("stradis%d irq: FIDB\n", saa->nr)); } if (astat & SAA7146_PSR_PIN3) { IDEBUG(printk("stradis%d irq: PIN3\n", saa->nr)); } if (astat & SAA7146_PSR_PIN2) { IDEBUG(printk("stradis%d irq: PIN2\n", saa->nr)); } if (astat & SAA7146_PSR_PIN0) { IDEBUG(printk("stradis%d irq: PIN0\n", saa->nr)); } if (astat & SAA7146_PSR_ECS) { IDEBUG(printk("stradis%d irq: ECS\n", saa->nr)); } if (astat & SAA7146_PSR_EC3S) { IDEBUG(printk("stradis%d irq: EC3S\n", saa->nr)); } if (astat & SAA7146_PSR_EC0S) { IDEBUG(printk("stradis%d irq: EC0S\n", saa->nr)); } #endif count++; if (count > 15) printk(KERN_WARNING "stradis%d: irq loop %d\n", saa->nr, count); if (count > 20) { saawrite(0, SAA7146_IER); printk(KERN_ERR "stradis%d: IRQ loop cleared\n", saa->nr); } } } static int ibm_send_command(struct saa7146 *saa, int command, int data, int chain) { int i; if (chain) debiwrite(saa, debNormal, IBM_MP2_COMMAND, (command << 1) | 1, 2); else debiwrite(saa, debNormal, IBM_MP2_COMMAND, command << 1, 2); debiwrite(saa, debNormal, IBM_MP2_CMD_DATA, data, 2); debiwrite(saa, debNormal, IBM_MP2_CMD_STAT, 1, 2); for (i = 0; i < 100 && (debiread(saa, debNormal, IBM_MP2_CMD_STAT, 2) & 1); i++) schedule(); if (i == 100) return -1; return 0; } static void cs4341_setlevel(struct saa7146 *saa, int left, int right) { I2CWrite(&(saa->i2c), 0x22, 0x03, left > 94 ? 94 : left, 2); I2CWrite(&(saa->i2c), 0x22, 0x04, right > 94 ? 94 : right, 2); } static void initialize_cs4341(struct saa7146 *saa) { int i; for (i = 0; i < 200; i++) { /* auto mute off, power on, no de-emphasis */ /* I2S data up to 24-bit 64xFs internal SCLK */ I2CWrite(&(saa->i2c), 0x22, 0x01, 0x11, 2); /* ATAPI mixer settings */ I2CWrite(&(saa->i2c), 0x22, 0x02, 0x49, 2); /* attenuation left 3db */ I2CWrite(&(saa->i2c), 0x22, 0x03, 0x00, 2); /* attenuation right 3db */ I2CWrite(&(saa->i2c), 0x22, 0x04, 0x00, 2); I2CWrite(&(saa->i2c), 0x22, 0x01, 0x10, 2); if (I2CRead(&(saa->i2c), 0x22, 0x02, 1) == 0x49) break; schedule(); } printk("stradis%d: CS4341 initialized (%d)\n", saa->nr, i); return; } static void initialize_cs8420(struct saa7146 *saa, int pro) { int i; u8 *sequence; if (pro) sequence = mode8420pro; else sequence = mode8420con; for (i = 0; i < INIT8420LEN; i++) I2CWrite(&(saa->i2c), 0x20, init8420[i * 2], init8420[i * 2 + 1], 2); for (i = 0; i < MODE8420LEN; i++) I2CWrite(&(saa->i2c), 0x20, sequence[i * 2], sequence[i * 2 + 1], 2); printk("stradis%d: CS8420 initialized\n", saa->nr); } static void initialize_saa7121(struct saa7146 *saa, int dopal) { int i, mod; u8 *sequence; if (dopal) sequence = init7121pal; else sequence = init7121ntsc; mod = saaread(SAA7146_PSR) & 0x08; /* initialize PAL/NTSC video encoder */ for (i = 0; i < INIT7121LEN; i++) { if (NewCard) { /* handle new card encoder differences */ if (sequence[i*2] == 0x3a) I2CWrite(&(saa->i2c), 0x88, 0x3a, 0x13, 2); else if (sequence[i*2] == 0x6b) I2CWrite(&(saa->i2c), 0x88, 0x6b, 0x20, 2); else if (sequence[i*2] == 0x6c) I2CWrite(&(saa->i2c), 0x88, 0x6c, dopal ? 0x09 : 0xf5, 2); else if (sequence[i*2] == 0x6d) I2CWrite(&(saa->i2c), 0x88, 0x6d, dopal ? 0x20 : 0x00, 2); else if (sequence[i*2] == 0x7a) I2CWrite(&(saa->i2c), 0x88, 0x7a, dopal ? (PALFirstActive - 1) : (NTSCFirstActive - 4), 2); else if (sequence[i*2] == 0x7b) I2CWrite(&(saa->i2c), 0x88, 0x7b, dopal ? PALLastActive : NTSCLastActive, 2); else I2CWrite(&(saa->i2c), 0x88, sequence[i * 2], sequence[i * 2 + 1], 2); } else { if (sequence[i*2] == 0x6b && mod) I2CWrite(&(saa->i2c), 0x88, 0x6b, (sequence[i * 2 + 1] ^ 0x09), 2); else if (sequence[i*2] == 0x7a) I2CWrite(&(saa->i2c), 0x88, 0x7a, dopal ? (PALFirstActive - 1) : (NTSCFirstActive - 4), 2); else if (sequence[i*2] == 0x7b) I2CWrite(&(saa->i2c), 0x88, 0x7b, dopal ? PALLastActive : NTSCLastActive, 2); else I2CWrite(&(saa->i2c), 0x88, sequence[i * 2], sequence[i * 2 + 1], 2); } } } static void set_genlock_offset(struct saa7146 *saa, int noffset) { int nCode; int PixelsPerLine = 858; if (CurrentMode == VIDEO_MODE_PAL) PixelsPerLine = 864; if (noffset > 500) noffset = 500; else if (noffset < -500) noffset = -500; nCode = noffset + 0x100; if (nCode == 1) nCode = 0x401; else if (nCode < 1) nCode = 0x400 + PixelsPerLine + nCode; debiwrite(saa, debNormal, XILINX_GLDELAY, nCode, 2); } static void set_out_format(struct saa7146 *saa, int mode) { initialize_saa7121(saa, (mode == VIDEO_MODE_NTSC ? 0 : 1)); saa->boardcfg[2] = mode; /* do not adjust analog video parameters here, use saa7121 init */ /* you will affect the SDI output on the new card */ if (mode == VIDEO_MODE_PAL) { /* PAL */ debiwrite(saa, debNormal, XILINX_CTL0, 0x0808, 2); mdelay(50); saawrite(0x012002c0, SAA7146_NUM_LINE_BYTE1); if (NewCard) { debiwrite(saa, debNormal, IBM_MP2_DISP_MODE, 0xe100, 2); mdelay(50); } debiwrite(saa, debNormal, IBM_MP2_DISP_MODE, NewCard ? 0xe500: 0x6500, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_DLY, (1 << 8) | (NewCard ? PALFirstActive : PALFirstActive-6), 2); } else { /* NTSC */ debiwrite(saa, debNormal, XILINX_CTL0, 0x0800, 2); mdelay(50); saawrite(0x00f002c0, SAA7146_NUM_LINE_BYTE1); debiwrite(saa, debNormal, IBM_MP2_DISP_MODE, NewCard ? 0xe100: 0x6100, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_DLY, (1 << 8) | (NewCard ? NTSCFirstActive : NTSCFirstActive-6), 2); } } /* Intialize bitmangler to map from a byte value to the mangled word that * must be output to program the Xilinx part through the DEBI port. * Xilinx Data Bit->DEBI Bit: 0->15 1->7 2->6 3->12 4->11 5->2 6->1 7->0 * transfer FPGA code, init IBM chip, transfer IBM microcode * rev2 card mangles: 0->7 1->6 2->5 3->4 4->3 5->2 6->1 7->0 */ static u16 bitmangler[256]; static int initialize_fpga(struct video_code *bitdata) { int i, num, startindex, failure = 0, loadtwo, loadfile = 0; u16 *dmabuf; u8 *newdma; struct saa7146 *saa; /* verify fpga code */ for (startindex = 0; startindex < bitdata->datasize; startindex++) if (bitdata->data[startindex] == 255) break; if (startindex == bitdata->datasize) { printk(KERN_INFO "stradis: bad fpga code\n"); return -1; } /* initialize all detected cards */ for (num = 0; num < saa_num; num++) { saa = &saa7146s[num]; if (saa->boardcfg[0] > 20) continue; /* card was programmed */ loadtwo = (saa->boardcfg[18] & 0x10); if (!NewCard) /* we have an old board */ for (i = 0; i < 256; i++) bitmangler[i] = ((i & 0x01) << 15) | ((i & 0x02) << 6) | ((i & 0x04) << 4) | ((i & 0x08) << 9) | ((i & 0x10) << 7) | ((i & 0x20) >> 3) | ((i & 0x40) >> 5) | ((i & 0x80) >> 7); else /* else we have a new board */ for (i = 0; i < 256; i++) bitmangler[i] = ((i & 0x01) << 7) | ((i & 0x02) << 5) | ((i & 0x04) << 3) | ((i & 0x08) << 1) | ((i & 0x10) >> 1) | ((i & 0x20) >> 3) | ((i & 0x40) >> 5) | ((i & 0x80) >> 7); dmabuf = (u16 *) saa->dmadebi; newdma = (u8 *) saa->dmadebi; if (NewCard) { /* SDM2xxx */ if (!strncmp(bitdata->loadwhat, "decoder2", 8)) continue; /* fpga not for this card */ if (!strncmp(&saa->boardcfg[42], bitdata->loadwhat, 8)) { loadfile = 1; } else if (loadtwo && !strncmp(&saa->boardcfg[19], bitdata->loadwhat, 8)) { loadfile = 2; } else if (!saa->boardcfg[42] && /* special */ !strncmp("decxl", bitdata->loadwhat, 8)) { loadfile = 1; } else continue; /* fpga not for this card */ if (loadfile != 1 && loadfile != 2) { continue; /* skip to next card */ } if (saa->boardcfg[0] && loadfile == 1 ) continue; /* skip to next card */ if (saa->boardcfg[0] != 1 && loadfile == 2) continue; /* skip to next card */ saa->boardcfg[0]++; /* mark fpga handled */ printk("stradis%d: loading %s\n", saa->nr, bitdata->loadwhat); if (loadtwo && loadfile == 2) goto send_fpga_stuff; /* turn on the Audio interface to set PROG low */ saawrite(0x00400040, SAA7146_GPIO_CTRL); saaread(SAA7146_PSR); /* ensure posted write */ /* wait for everyone to reset */ mdelay(10); saawrite(0x00400000, SAA7146_GPIO_CTRL); } else { /* original card */ if (strncmp(bitdata->loadwhat, "decoder2", 8)) continue; /* fpga not for this card */ /* Pull the Xilinx PROG signal WS3 low */ saawrite(0x02000200, SAA7146_MC1); /* Turn on the Audio interface so can set PROG low */ saawrite(0x000000c0, SAA7146_ACON1); /* Pull the Xilinx INIT signal (GPIO2) low */ saawrite(0x00400000, SAA7146_GPIO_CTRL); /* Make sure everybody resets */ saaread(SAA7146_PSR); /* ensure posted write */ mdelay(10); /* Release the Xilinx PROG signal */ saawrite(0x00000000, SAA7146_ACON1); /* Turn off the Audio interface */ saawrite(0x02000000, SAA7146_MC1); } /* Release Xilinx INIT signal (WS2) */ saawrite(0x00000000, SAA7146_GPIO_CTRL); /* Wait for the INIT to go High */ for (i = 0; i < 10000 && !(saaread(SAA7146_PSR) & SAA7146_PSR_PIN2); i++) schedule(); if (i == 1000) { printk(KERN_INFO "stradis%d: no fpga INIT\n", saa->nr); return -1; } send_fpga_stuff: if (NewCard) { for (i = startindex; i < bitdata->datasize; i++) newdma[i - startindex] = bitmangler[bitdata->data[i]]; debiwrite(saa, 0x01420000, 0, 0, ((bitdata->datasize - startindex) + 5)); if (loadtwo) { if (loadfile == 1) { printk("stradis%d: " "awaiting 2nd FPGA bitfile\n", saa->nr); continue; /* skip to next card */ } } } else { for (i = startindex; i < bitdata->datasize; i++) dmabuf[i - startindex] = bitmangler[bitdata->data[i]]; debiwrite(saa, 0x014a0000, 0, 0, ((bitdata->datasize - startindex) + 5) * 2); } for (i = 0; i < 1000 && !(saaread(SAA7146_PSR) & SAA7146_PSR_PIN2); i++) schedule(); if (i == 1000) { printk(KERN_INFO "stradis%d: FPGA load failed\n", saa->nr); failure++; continue; } if (!NewCard) { /* Pull the Xilinx INIT signal (GPIO2) low */ saawrite(0x00400000, SAA7146_GPIO_CTRL); saaread(SAA7146_PSR); /* ensure posted write */ mdelay(2); saawrite(0x00000000, SAA7146_GPIO_CTRL); mdelay(2); } printk(KERN_INFO "stradis%d: FPGA Loaded\n", saa->nr); saa->boardcfg[0] = 26; /* mark fpga programmed */ /* set VXCO to its lowest frequency */ debiwrite(saa, debNormal, XILINX_PWM, 0, 2); if (NewCard) { /* mute CS3310 */ if (HaveCS3310) debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, 0, 2); /* set VXCO to PWM mode, release reset, blank on */ debiwrite(saa, debNormal, XILINX_CTL0, 0xffc4, 2); mdelay(10); /* unmute CS3310 */ if (HaveCS3310) debiwrite(saa, debNormal, XILINX_CTL0, 0x2020, 2); } /* set source Black */ debiwrite(saa, debNormal, XILINX_CTL0, 0x1707, 2); saa->boardcfg[4] = 22; /* set NTSC First Active Line */ saa->boardcfg[5] = 23; /* set PAL First Active Line */ saa->boardcfg[54] = 2; /* set NTSC Last Active Line - 256 */ saa->boardcfg[55] = 54; /* set PAL Last Active Line - 256 */ set_out_format(saa, VIDEO_MODE_NTSC); mdelay(50); /* begin IBM chip init */ debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 4, 2); saaread(SAA7146_PSR); /* wait for reset */ mdelay(5); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0, 2); debiread(saa, debNormal, IBM_MP2_CHIP_CONTROL, 2); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0x10, 2); debiwrite(saa, debNormal, IBM_MP2_CMD_ADDR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_CHIP_MODE, 0x2e, 2); if (NewCard) { mdelay(5); /* set i2s rate converter to 48KHz */ debiwrite(saa, debNormal, 0x80c0, 6, 2); /* we must init CS8420 first since rev b pulls i2s */ /* master clock low and CS4341 needs i2s master to */ /* run the i2c port. */ if (HaveCS8420) { /* 0=consumer, 1=pro */ initialize_cs8420(saa, 0); } mdelay(5); if (HaveCS4341) initialize_cs4341(saa); } debiwrite(saa, debNormal, IBM_MP2_INFC_CTL, 0x48, 2); debiwrite(saa, debNormal, IBM_MP2_BEEP_CTL, 0xa000, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_LBOR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_TBOR, 0, 2); if (NewCard) set_genlock_offset(saa, 0); debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0, 2); #if 0 /* enable genlock */ debiwrite(saa, debNormal, XILINX_CTL0, 0x8000, 2); #else /* disable genlock */ debiwrite(saa, debNormal, XILINX_CTL0, 0x8080, 2); #endif } return failure; } static int do_ibm_reset(struct saa7146 *saa) { /* failure if decoder not previously programmed */ if (saa->boardcfg[0] < 37) return -EIO; /* mute CS3310 */ if (HaveCS3310) debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, 0, 2); /* disable interrupts */ saawrite(0, SAA7146_IER); saa->audhead = saa->audtail = 0; saa->vidhead = saa->vidtail = 0; /* tristate debi bus, disable debi transfers */ saawrite(0x00880000, SAA7146_MC1); /* ensure posted write */ saaread(SAA7146_MC1); mdelay(50); /* re-enable debi transfers */ saawrite(0x00880088, SAA7146_MC1); /* set source Black */ debiwrite(saa, debNormal, XILINX_CTL0, 0x1707, 2); /* begin IBM chip init */ set_out_format(saa, CurrentMode); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 4, 2); saaread(SAA7146_PSR); /* wait for reset */ mdelay(5); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0, 2); debiread(saa, debNormal, IBM_MP2_CHIP_CONTROL, 2); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); debiwrite(saa, debNormal, IBM_MP2_CHIP_MODE, 0x2e, 2); if (NewCard) { mdelay(5); /* set i2s rate converter to 48KHz */ debiwrite(saa, debNormal, 0x80c0, 6, 2); /* we must init CS8420 first since rev b pulls i2s */ /* master clock low and CS4341 needs i2s master to */ /* run the i2c port. */ if (HaveCS8420) { /* 0=consumer, 1=pro */ initialize_cs8420(saa, 1); } mdelay(5); if (HaveCS4341) initialize_cs4341(saa); } debiwrite(saa, debNormal, IBM_MP2_INFC_CTL, 0x48, 2); debiwrite(saa, debNormal, IBM_MP2_BEEP_CTL, 0xa000, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_LBOR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_TBOR, 0, 2); if (NewCard) set_genlock_offset(saa, 0); debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0, 2); debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0x2000, 2); debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4552, 2); if (ibm_send_command(saa, IBM_MP2_CONFIG_DECODER, (ChipControl == 0x43 ? 0xe800 : 0xe000), 1)) { printk(KERN_ERR "stradis%d: IBM config failed\n", saa->nr); } if (HaveCS3310) { int i = CS3310MaxLvl; debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, ((i<<8)|i), 2); } /* start video decoder */ debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); /* 256k vid, 3520 bytes aud */ debiwrite(saa, debNormal, IBM_MP2_RB_THRESHOLD, 0x4037, 2); debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4573, 2); ibm_send_command(saa, IBM_MP2_PLAY, 0, 0); /* enable buffer threshold irq */ debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2); /* clear pending interrupts */ debiread(saa, debNormal, IBM_MP2_HOST_INT, 2); debiwrite(saa, debNormal, XILINX_CTL0, 0x1711, 2); return 0; } /* load the decoder microcode */ static int initialize_ibmmpeg2(struct video_code *microcode) { int i, num; struct saa7146 *saa; for (num = 0; num < saa_num; num++) { saa = &saa7146s[num]; /* check that FPGA is loaded */ debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0xa55a, 2); if ((i = debiread(saa, debNormal, IBM_MP2_OSD_SIZE, 2)) != 0xa55a) { printk(KERN_INFO "stradis%d: %04x != 0xa55a\n", saa->nr, i); #if 0 return -1; #endif } if (!strncmp(microcode->loadwhat, "decoder.vid", 11)) { if (saa->boardcfg[0] > 27) continue; /* skip to next card */ /* load video control store */ saa->boardcfg[1] = 0x13; /* no-sync default */ debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 1, 2); debiwrite(saa, debNormal, IBM_MP2_PROC_IADDR, 0, 2); for (i = 0; i < microcode->datasize / 2; i++) debiwrite(saa, debNormal, IBM_MP2_PROC_IDATA, (microcode->data[i * 2] << 8) | microcode->data[i * 2 + 1], 2); debiwrite(saa, debNormal, IBM_MP2_PROC_IADDR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 0, 2); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); saa->boardcfg[0] = 28; } if (!strncmp(microcode->loadwhat, "decoder.aud", 11)) { if (saa->boardcfg[0] > 35) continue; /* skip to next card */ /* load audio control store */ debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 1, 2); debiwrite(saa, debNormal, IBM_MP2_AUD_IADDR, 0, 2); for (i = 0; i < microcode->datasize; i++) debiwrite(saa, debNormal, IBM_MP2_AUD_IDATA, microcode->data[i], 1); debiwrite(saa, debNormal, IBM_MP2_AUD_IADDR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_WR_PROT, 0, 2); debiwrite(saa, debNormal, IBM_MP2_OSD_SIZE, 0x2000, 2); debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4552, 2); if (ibm_send_command(saa, IBM_MP2_CONFIG_DECODER, 0xe000, 1)) { printk(KERN_ERR "stradis%d: IBM config failed\n", saa->nr); return -1; } /* set PWM to center value */ if (NewCard) { debiwrite(saa, debNormal, XILINX_PWM, saa->boardcfg[14] + (saa->boardcfg[13]<<8), 2); } else debiwrite(saa, debNormal, XILINX_PWM, 0x46, 2); if (HaveCS3310) { i = CS3310MaxLvl; debiwrite(saa, debNormal, XILINX_CS3310_CMPLT, ((i<<8)|i), 2); } printk(KERN_INFO "stradis%d: IBM MPEGCD%d Initialized\n", saa->nr, 18 + (debiread(saa, debNormal, IBM_MP2_CHIP_CONTROL, 2) >> 12)); /* start video decoder */ debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); debiwrite(saa, debNormal, IBM_MP2_RB_THRESHOLD, 0x4037, 2); /* 256k vid, 3520 bytes aud */ debiwrite(saa, debNormal, IBM_MP2_AUD_CTL, 0x4573, 2); ibm_send_command(saa, IBM_MP2_PLAY, 0, 0); /* enable buffer threshold irq */ debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00c, 2); debiread(saa, debNormal, IBM_MP2_HOST_INT, 2); /* enable gpio irq */ saawrite(0x00002000, SAA7146_GPIO_CTRL); /* enable decoder output to HPS */ debiwrite(saa, debNormal, XILINX_CTL0, 0x1711, 2); saa->boardcfg[0] = 37; } } return 0; } static u32 palette2fmt[] = { /* some of these YUV translations are wrong */ 0xffffffff, 0x86000000, 0x87000000, 0x80000000, 0x8100000, 0x82000000, 0x83000000, 0x00000000, 0x03000000, 0x03000000, 0x0a00000, 0x03000000, 0x06000000, 0x00000000, 0x03000000, 0x0a000000, 0x0300000 }; static int bpp2fmt[4] = { VIDEO_PALETTE_HI240, VIDEO_PALETTE_RGB565, VIDEO_PALETTE_RGB24, VIDEO_PALETTE_RGB32 }; /* I wish I could find a formula to calculate these... */ static u32 h_prescale[64] = { 0x10000000, 0x18040202, 0x18080000, 0x380c0606, 0x38100204, 0x38140808, 0x38180000, 0x381c0000, 0x3820161c, 0x38242a3b, 0x38281230, 0x382c4460, 0x38301040, 0x38340080, 0x38380000, 0x383c0000, 0x3840fefe, 0x3844ee9f, 0x3848ee9f, 0x384cee9f, 0x3850ee9f, 0x38542a3b, 0x38581230, 0x385c0000, 0x38600000, 0x38640000, 0x38680000, 0x386c0000, 0x38700000, 0x38740000, 0x38780000, 0x387c0000, 0x30800000, 0x38840000, 0x38880000, 0x388c0000, 0x38900000, 0x38940000, 0x38980000, 0x389c0000, 0x38a00000, 0x38a40000, 0x38a80000, 0x38ac0000, 0x38b00000, 0x38b40000, 0x38b80000, 0x38bc0000, 0x38c00000, 0x38c40000, 0x38c80000, 0x38cc0000, 0x38d00000, 0x38d40000, 0x38d80000, 0x38dc0000, 0x38e00000, 0x38e40000, 0x38e80000, 0x38ec0000, 0x38f00000, 0x38f40000, 0x38f80000, 0x38fc0000, }; static u32 v_gain[64] = { 0x016000ff, 0x016100ff, 0x016100ff, 0x016200ff, 0x016200ff, 0x016200ff, 0x016200ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016300ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, 0x016400ff, }; static void saa7146_set_winsize(struct saa7146 *saa) { u32 format; int offset, yacl, ysci; saa->win.color_fmt = format = (saa->win.depth == 15) ? palette2fmt[VIDEO_PALETTE_RGB555] : palette2fmt[bpp2fmt[(saa->win.bpp - 1) & 3]]; offset = saa->win.x * saa->win.bpp + saa->win.y * saa->win.bpl; saawrite(saa->win.vidadr + offset, SAA7146_BASE_EVEN1); saawrite(saa->win.vidadr + offset + saa->win.bpl, SAA7146_BASE_ODD1); saawrite(saa->win.bpl * 2, SAA7146_PITCH1); saawrite(saa->win.vidadr + saa->win.bpl * saa->win.sheight, SAA7146_PROT_ADDR1); saawrite(0, SAA7146_PAGE1); saawrite(format|0x60, SAA7146_CLIP_FORMAT_CTRL); offset = (704 / (saa->win.width - 1)) & 0x3f; saawrite(h_prescale[offset], SAA7146_HPS_H_PRESCALE); offset = (720896 / saa->win.width) / (offset + 1); saawrite((offset<<12)|0x0c, SAA7146_HPS_H_SCALE); if (CurrentMode == VIDEO_MODE_NTSC) { yacl = /*(480 / saa->win.height - 1) & 0x3f*/ 0; ysci = 1024 - (saa->win.height * 1024 / 480); } else { yacl = /*(576 / saa->win.height - 1) & 0x3f*/ 0; ysci = 1024 - (saa->win.height * 1024 / 576); } saawrite((1<<31)|(ysci<<21)|(yacl<<15), SAA7146_HPS_V_SCALE); saawrite(v_gain[yacl], SAA7146_HPS_V_GAIN); saawrite(((SAA7146_MC2_UPLD_DMA1 | SAA7146_MC2_UPLD_HPS_V | SAA7146_MC2_UPLD_HPS_H) << 16) | (SAA7146_MC2_UPLD_DMA1 | SAA7146_MC2_UPLD_HPS_V | SAA7146_MC2_UPLD_HPS_H), SAA7146_MC2); } /* clip_draw_rectangle(cm,x,y,w,h) -- handle clipping an area * bitmap is fixed width, 128 bytes (1024 pixels represented) * arranged most-sigificant-bit-left in 32-bit words * based on saa7146 clipping hardware, it swaps bytes if LE * much of this makes up for egcs brain damage -- so if you * are wondering "why did he do this?" it is because the C * was adjusted to generate the optimal asm output without * writing non-portable __asm__ directives. */ static void clip_draw_rectangle(u32 *clipmap, int x, int y, int w, int h) { register int startword, endword; register u32 bitsleft, bitsright; u32 *temp; if (x < 0) { w += x; x = 0; } if (y < 0) { h += y; y = 0; } if (w <= 0 || h <= 0 || x > 1023 || y > 639) return; /* throw away bad clips */ if (x + w > 1024) w = 1024 - x; if (y + h > 640) h = 640 - y; startword = (x >> 5); endword = ((x + w) >> 5); bitsleft = (0xffffffff >> (x & 31)); bitsright = (0xffffffff << (~((x + w) - (endword<<5)))); temp = &clipmap[(y<<5) + startword]; w = endword - startword; if (!w) { bitsleft |= bitsright; for (y = 0; y < h; y++) { *temp |= bitsleft; temp += 32; } } else { for (y = 0; y < h; y++) { *temp++ |= bitsleft; for (x = 1; x < w; x++) *temp++ = 0xffffffff; *temp |= bitsright; temp += (32 - w); } } } static void make_clip_tab(struct saa7146 *saa, struct video_clip *cr, int ncr) { int i, width, height; u32 *clipmap; clipmap = saa->dmavid2; if((width=saa->win.width)>1023) width = 1023; /* sanity check */ if((height=saa->win.height)>640) height = 639; /* sanity check */ if (ncr > 0) { /* rectangles pased */ /* 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 */ clip_draw_rectangle(clipmap,(saa->win.x+width>saa->win.swidth) ? (saa->win.swidth-saa->win.x) : width, 0, 1024, 768); clip_draw_rectangle(clipmap,0,(saa->win.y+height>saa->win.sheight) ? (saa->win.sheight-saa->win.y) : height,1024,768); if (saa->win.x<0) clip_draw_rectangle(clipmap, 0, 0, -(saa->win.x), 768); if (saa->win.y<0) clip_draw_rectangle(clipmap, 0, 0, 1024, -(saa->win.y)); } static int saa_ioctl(struct video_device *dev, unsigned int cmd, void *arg) { struct saa7146 *saa = (struct saa7146 *) dev; switch (cmd) { case VIDIOCGCAP: { struct video_capability b; strcpy(b.name, saa->video_dev.name); b.type = VID_TYPE_CAPTURE | VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | VID_TYPE_FRAMERAM | VID_TYPE_SCALES; b.channels = 1; b.audios = 1; b.maxwidth = 768; b.maxheight = 576; b.minwidth = 32; b.minheight = 32; if (copy_to_user(arg, &b, sizeof(b))) return -EFAULT; return 0; } case VIDIOCGPICT: { struct video_picture p = saa->picture; if (saa->win.depth == 8) p.palette = VIDEO_PALETTE_HI240; if (saa->win.depth == 15) p.palette = VIDEO_PALETTE_RGB555; if (saa->win.depth == 16) p.palette = VIDEO_PALETTE_RGB565; if (saa->win.depth == 24) p.palette = VIDEO_PALETTE_RGB24; if (saa->win.depth == 32) p.palette = VIDEO_PALETTE_RGB32; if (copy_to_user(arg, &p, sizeof(p))) return -EFAULT; return 0; } case VIDIOCSPICT: { struct video_picture p; u32 format; if (copy_from_user(&p, arg, sizeof(p))) return -EFAULT; if (p.palette < sizeof(palette2fmt) / sizeof(u32)) { format = palette2fmt[p.palette]; saa->win.color_fmt = format; saawrite(format|0x60, SAA7146_CLIP_FORMAT_CTRL); } saawrite(((p.brightness & 0xff00) << 16) | ((p.contrast & 0xfe00) << 7) | ((p.colour & 0xfe00) >> 9), SAA7146_BCS_CTRL); saa->picture = p; /* upload changed registers */ saawrite(((SAA7146_MC2_UPLD_HPS_H | SAA7146_MC2_UPLD_HPS_V) << 16) | SAA7146_MC2_UPLD_HPS_H | SAA7146_MC2_UPLD_HPS_V, SAA7146_MC2); return 0; } case VIDIOCSWIN: { struct video_window vw; struct video_clip *vcp = NULL; if (copy_from_user(&vw, arg, sizeof(vw))) return -EFAULT; if (vw.flags || vw.width < 16 || vw.height < 16) { /* stop capture */ saawrite((SAA7146_MC1_TR_E_1 << 16), SAA7146_MC1); return -EINVAL; } if (saa->win.bpp < 4) { /* 32-bit align start and adjust width */ int i = vw.x; vw.x = (vw.x + 3) & ~3; i = vw.x - i; vw.width -= i; } saa->win.x = vw.x; saa->win.y = vw.y; saa->win.width = vw.width; if (saa->win.width > 768) saa->win.width = 768; saa->win.height = vw.height; if (CurrentMode == VIDEO_MODE_NTSC) { if (saa->win.height > 480) saa->win.height = 480; } else { if (saa->win.height > 576) saa->win.height = 576; } /* stop capture */ saawrite((SAA7146_MC1_TR_E_1 << 16), SAA7146_MC1); saa7146_set_winsize(saa); /* * Do any clips. */ if (vw.clipcount < 0) { if (copy_from_user(saa->dmavid2, vw.clips, VIDEO_CLIPMAP_SIZE)) return -EFAULT; } else if (vw.clipcount > 16384) { return -EINVAL; } else if (vw.clipcount > 0) { 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; } } else /* nothing clipped */ memset(saa->dmavid2, 0, VIDEO_CLIPMAP_SIZE); make_clip_tab(saa, vcp, vw.clipcount); if (vw.clipcount > 0) vfree(vcp); /* start capture & clip dma if we have an address */ if ((saa->cap & 3) && saa->win.vidadr != 0) saawrite(((SAA7146_MC1_TR_E_1 | SAA7146_MC1_TR_E_2) << 16) | 0xffff, SAA7146_MC1); return 0; } case VIDIOCGWIN: { struct video_window vw; vw.x = saa->win.x; vw.y = saa->win.y; vw.width = saa->win.width; vw.height = saa->win.height; vw.chromakey = 0; vw.flags = 0; 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 (v == 0) { saa->cap &= ~1; saawrite((SAA7146_MC1_TR_E_1 << 16), SAA7146_MC1); } else { if (saa->win.vidadr == 0 || saa->win.width == 0 || saa->win.height == 0) return -EINVAL; saa->cap |= 1; saawrite((SAA7146_MC1_TR_E_1 << 16) | 0xffff, SAA7146_MC1); } return 0; } case VIDIOCGFBUF: { struct video_buffer v; v.base = (void *) saa->win.vidadr; v.height = saa->win.sheight; v.width = saa->win.swidth; v.depth = saa->win.depth; v.bytesperline = saa->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)) 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; if (v.base) saa->win.vidadr = (unsigned long) v.base; saa->win.sheight = v.height; saa->win.swidth = v.width; saa->win.bpp = ((v.depth + 7) & 0x38) / 8; saa->win.depth = v.depth; saa->win.bpl = v.bytesperline; DEBUG(printk("Display at %p is %d by %d, bytedepth %d, bpl %d\n", v.base, v.width, v.height, saa->win.bpp, saa->win.bpl)); saa7146_set_winsize(saa); return 0; } case VIDIOCKEY: { /* Will be handled higher up .. */ return 0; } case VIDIOCGAUDIO: { struct video_audio v; v = saa->audio_dev; v.flags &= ~(VIDEO_AUDIO_MUTE | VIDEO_AUDIO_MUTABLE); v.flags |= VIDEO_AUDIO_MUTABLE | VIDEO_AUDIO_VOLUME; strcpy(v.name, "MPEG"); v.mode = VIDEO_SOUND_STEREO; if (copy_to_user(arg, &v, sizeof(v))) return -EFAULT; return 0; } case VIDIOCSAUDIO: { struct video_audio v; int i; if (copy_from_user(&v, arg, sizeof(v))) return -EFAULT; i = (~(v.volume>>8))&0xff; if (!HaveCS4341) { if (v.flags & VIDEO_AUDIO_MUTE) { debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0xffff, 2); } if (!(v.flags & VIDEO_AUDIO_MUTE)) debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, 0x0000, 2); if (v.flags & VIDEO_AUDIO_VOLUME) debiwrite(saa, debNormal, IBM_MP2_FRNT_ATTEN, (i<<8)|i, 2); } else { if (v.flags & VIDEO_AUDIO_MUTE) cs4341_setlevel(saa, 0xff, 0xff); if (!(v.flags & VIDEO_AUDIO_MUTE)) cs4341_setlevel(saa, 0, 0); if (v.flags & VIDEO_AUDIO_VOLUME) cs4341_setlevel(saa, i, i); } saa->audio_dev = v; return 0; } case VIDIOCGUNIT: { struct video_unit vu; vu.video = saa->video_dev.minor; vu.vbi = VIDEO_NO_UNIT; 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 VIDIOCSPLAYMODE: { struct video_play_mode pmode; if (copy_from_user((void *) &pmode, arg, sizeof(struct video_play_mode))) return -EFAULT; switch (pmode.mode) { case VID_PLAY_VID_OUT_MODE: if (pmode.p1 != VIDEO_MODE_NTSC && pmode.p1 != VIDEO_MODE_PAL) return -EINVAL; set_out_format(saa, pmode.p1); return 0; case VID_PLAY_GENLOCK: debiwrite(saa, debNormal, XILINX_CTL0, (pmode.p1 ? 0x8000 : 0x8080), 2); if (NewCard) set_genlock_offset(saa, pmode.p2); return 0; case VID_PLAY_NORMAL: debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); ibm_send_command(saa, IBM_MP2_PLAY, 0, 0); saa->playmode = pmode.mode; return 0; case VID_PLAY_PAUSE: /* IBM removed the PAUSE command */ /* they say use SINGLE_FRAME now */ case VID_PLAY_SINGLE_FRAME: ibm_send_command(saa, IBM_MP2_SINGLE_FRAME, 0, 0); if (saa->playmode == pmode.mode) { debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); } saa->playmode = pmode.mode; return 0; case VID_PLAY_FAST_FORWARD: ibm_send_command(saa, IBM_MP2_FAST_FORWARD, 0, 0); saa->playmode = pmode.mode; return 0; case VID_PLAY_SLOW_MOTION: ibm_send_command(saa, IBM_MP2_SLOW_MOTION, pmode.p1, 0); saa->playmode = pmode.mode; return 0; case VID_PLAY_IMMEDIATE_NORMAL: /* ensure transfers resume */ debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); ibm_send_command(saa, IBM_MP2_IMED_NORM_PLAY, 0, 0); saa->playmode = VID_PLAY_NORMAL; return 0; case VID_PLAY_SWITCH_CHANNELS: saa->audhead = saa->audtail = 0; saa->vidhead = saa->vidtail = 0; ibm_send_command(saa, IBM_MP2_FREEZE_FRAME, 0, 1); ibm_send_command(saa, IBM_MP2_RESET_AUD_RATE, 0, 1); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, 0, 2); ibm_send_command(saa, IBM_MP2_CHANNEL_SWITCH, 0, 1); debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); ibm_send_command(saa, IBM_MP2_PLAY, 0, 0); saa->playmode = VID_PLAY_NORMAL; return 0; case VID_PLAY_FREEZE_FRAME: ibm_send_command(saa, IBM_MP2_FREEZE_FRAME, 0, 0); saa->playmode = pmode.mode; return 0; case VID_PLAY_STILL_MODE: ibm_send_command(saa, IBM_MP2_SET_STILL_MODE, 0, 0); saa->playmode = pmode.mode; return 0; case VID_PLAY_MASTER_MODE: if (pmode.p1 == VID_PLAY_MASTER_NONE) saa->boardcfg[1] = 0x13; else if (pmode.p1 == VID_PLAY_MASTER_VIDEO) saa->boardcfg[1] = 0x23; else if (pmode.p1 == VID_PLAY_MASTER_AUDIO) saa->boardcfg[1] = 0x43; else return -EINVAL; debiwrite(saa, debNormal, IBM_MP2_CHIP_CONTROL, ChipControl, 2); return 0; case VID_PLAY_ACTIVE_SCANLINES: if (CurrentMode == VIDEO_MODE_PAL) { if (pmode.p1 < 1 || pmode.p2 > 625) return -EINVAL; saa->boardcfg[5] = pmode.p1; saa->boardcfg[55] = (pmode.p1 + (pmode.p2/2) - 1) & 0xff; } else { if (pmode.p1 < 4 || pmode.p2 > 525) return -EINVAL; saa->boardcfg[4] = pmode.p1; saa->boardcfg[54] = (pmode.p1 + (pmode.p2/2) - 4) & 0xff; } set_out_format(saa, CurrentMode); case VID_PLAY_RESET: return do_ibm_reset(saa); case VID_PLAY_END_MARK: if (saa->endmarktail < saa->endmarkhead) { if (saa->endmarkhead - saa->endmarktail < 2) return -ENOSPC; } else if (saa->endmarkhead <= saa->endmarktail) { if (saa->endmarktail - saa->endmarkhead > (MAX_MARKS - 2)) return -ENOSPC; } else return -ENOSPC; saa->endmark[saa->endmarktail] = saa->audtail; saa->endmarktail++; if (saa->endmarktail >= MAX_MARKS) saa->endmarktail = 0; } return -EINVAL; } case VIDIOCSWRITEMODE: { int mode; if (copy_from_user((void *) &mode, arg, sizeof(int))) return -EFAULT; if (mode == VID_WRITE_MPEG_AUD || mode == VID_WRITE_MPEG_VID || mode == VID_WRITE_CC || mode == VID_WRITE_TTX || mode == VID_WRITE_OSD) { saa->writemode = mode; return 0; } return -EINVAL; } case VIDIOCSMICROCODE: { struct video_code ucode; __u8 *udata; int i; if (copy_from_user((void *) &ucode, arg, sizeof(ucode))) return -EFAULT; if (ucode.datasize > 65536 || ucode.datasize < 1024 || strncmp(ucode.loadwhat, "dec", 3)) return -EINVAL; if ((udata = vmalloc(ucode.datasize)) == NULL) return -ENOMEM; if (copy_from_user((void *) udata, ucode.data, ucode.datasize)) { vfree(udata); return -EFAULT; } ucode.data = udata; if (!strncmp(ucode.loadwhat, "decoder.aud", 11) || !strncmp(ucode.loadwhat, "decoder.vid", 11)) i = initialize_ibmmpeg2(&ucode); else i = initialize_fpga(&ucode); vfree(udata); if (i) return -EINVAL; return 0; } case VIDIOCGCHAN: /* this makes xawtv happy */ { struct video_channel v; if (copy_from_user(&v, arg, sizeof(v))) return -EFAULT; v.flags = VIDEO_VC_AUDIO; v.tuners = 0; v.type = VID_TYPE_MPEG_DECODER; v.norm = CurrentMode; strcpy(v.name, "MPEG2"); if (copy_to_user(arg, &v, sizeof(v))) return -EFAULT; return 0; } case VIDIOCSCHAN: /* this makes xawtv happy */ { struct video_channel v; if (copy_from_user(&v, arg, sizeof(v))) return -EFAULT; /* do nothing */ return 0; } default: return -ENOIOCTLCMD; } return 0; } static int saa_mmap(struct video_device *dev, const char *adr, unsigned long size) { struct saa7146 *saa = (struct saa7146 *) dev; printk(KERN_DEBUG "stradis%d: saa_mmap called\n", saa->nr); return -EINVAL; } static long saa_read(struct video_device *dev, char *buf, unsigned long count, int nonblock) { return -EINVAL; } static long saa_write(struct video_device *dev, const char *buf, unsigned long count, int nonblock) { struct saa7146 *saa = (struct saa7146 *) dev; unsigned long todo = count; int blocksize, split; unsigned long flags; while (todo > 0) { if (saa->writemode == VID_WRITE_MPEG_AUD) { spin_lock_irqsave(&saa->lock, flags); if (saa->audhead <= saa->audtail) blocksize = 65536-(saa->audtail - saa->audhead); else blocksize = saa->audhead - saa->audtail; spin_unlock_irqrestore(&saa->lock, flags); if (blocksize < 16384) { saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER); saawrite(SAA7146_PSR_PIN1, SAA7146_PSR); /* wait for buffer space to open */ interruptible_sleep_on(&saa->audq); } spin_lock_irqsave(&saa->lock, flags); if (saa->audhead <= saa->audtail) { blocksize = 65536-(saa->audtail - saa->audhead); split = 65536 - saa->audtail; } else { blocksize = saa->audhead - saa->audtail; split = 65536; } spin_unlock_irqrestore(&saa->lock, flags); blocksize--; if (blocksize > todo) blocksize = todo; /* double check that we really have space */ if (!blocksize) return -ENOSPC; if (split < blocksize) { if (copy_from_user(saa->audbuf + saa->audtail, buf, split)) return -EFAULT; buf += split; todo -= split; blocksize -= split; saa->audtail = 0; } if (copy_from_user(saa->audbuf + saa->audtail, buf, blocksize)) return -EFAULT; saa->audtail += blocksize; todo -= blocksize; buf += blocksize; saa->audtail &= 0xffff; } else if (saa->writemode == VID_WRITE_MPEG_VID) { spin_lock_irqsave(&saa->lock, flags); if (saa->vidhead <= saa->vidtail) blocksize=524288-(saa->vidtail - saa->vidhead); else blocksize = saa->vidhead - saa->vidtail; spin_unlock_irqrestore(&saa->lock, flags); if (blocksize < 65536) { saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER); saawrite(SAA7146_PSR_PIN1, SAA7146_PSR); /* wait for buffer space to open */ interruptible_sleep_on(&saa->vidq); } spin_lock_irqsave(&saa->lock, flags); if (saa->vidhead <= saa->vidtail) { blocksize=524288-(saa->vidtail - saa->vidhead); split = 524288 - saa->vidtail; } else { blocksize = saa->vidhead - saa->vidtail; split = 524288; } spin_unlock_irqrestore(&saa->lock, flags); blocksize--; if (blocksize > todo) blocksize = todo; /* double check that we really have space */ if (!blocksize) return -ENOSPC; if (split < blocksize) { if (copy_from_user(saa->vidbuf + saa->vidtail, buf, split)) return -EFAULT; buf += split; todo -= split; blocksize -= split; saa->vidtail = 0; } if (copy_from_user(saa->vidbuf + saa->vidtail, buf, blocksize)) return -EFAULT; saa->vidtail += blocksize; todo -= blocksize; buf += blocksize; saa->vidtail &= 0x7ffff; } else if (saa->writemode == VID_WRITE_OSD) { if (count > 131072) return -ENOSPC; if (copy_from_user(saa->osdbuf, buf, count)) return -EFAULT; buf += count; saa->osdhead = 0; saa->osdtail = count; debiwrite(saa, debNormal, IBM_MP2_OSD_ADDR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_OSD_LINK_ADDR, 0, 2); debiwrite(saa, debNormal, IBM_MP2_MASK0, 0xc00d, 2); debiwrite(saa, debNormal, IBM_MP2_DISP_MODE, debiread(saa, debNormal, IBM_MP2_DISP_MODE, 2) | 1, 2); /* trigger osd data transfer */ saawrite(SAA7146_PSR_DEBI_S | SAA7146_PSR_PIN1, SAA7146_IER); saawrite(SAA7146_PSR_PIN1, SAA7146_PSR); } } return count; } static int saa_open(struct video_device *dev, int flags) { struct saa7146 *saa = (struct saa7146 *) dev; /* FIXME: Don't do it this way, use the video_device->fops * registration for a sane implementation of multiple opens */ saa->video_dev.users--; saa->user++; if (saa->user > 1) return 0; /* device open already, don't reset */ saa->writemode = VID_WRITE_MPEG_VID; /* default to video */ return 0; } static void saa_close(struct video_device *dev) { struct saa7146 *saa = (struct saa7146 *) dev; saa->user--; saa->video_dev.users++; if (saa->user > 0) /* still someone using device */ return; saawrite(0x007f0000, SAA7146_MC1); /* stop all overlay dma */ } /* template for video_device-structure */ static struct video_device saa_template = { owner: THIS_MODULE, name: "SAA7146A", type: VID_TYPE_CAPTURE | VID_TYPE_OVERLAY, hardware: VID_HARDWARE_SAA7146, open: saa_open, close: saa_close, read: saa_read, write: saa_write, ioctl: saa_ioctl, mmap: saa_mmap, }; static int configure_saa7146(struct pci_dev *dev, int num) { int result; struct saa7146 *saa; saa = &saa7146s[num]; saa->endmarkhead = saa->endmarktail = 0; saa->win.x = saa->win.y = 0; saa->win.width = saa->win.cropwidth = 720; saa->win.height = saa->win.cropheight = 480; saa->win.cropx = saa->win.cropy = 0; saa->win.bpp = 2; saa->win.depth = 16; saa->win.color_fmt = palette2fmt[VIDEO_PALETTE_RGB565]; saa->win.bpl = 1024 * saa->win.bpp; saa->win.swidth = 1024; saa->win.sheight = 768; saa->picture.brightness = 32768; saa->picture.contrast = 38768; saa->picture.colour = 32768; saa->cap = 0; saa->dev = dev; saa->nr = num; saa->playmode = VID_PLAY_NORMAL; memset(saa->boardcfg, 0, 64); /* clear board config area */ saa->saa7146_mem = NULL; saa->dmavid1 = saa->dmavid2 = saa->dmavid3 = saa->dmaa1in = saa->dmaa1out = saa->dmaa2in = saa->dmaa2out = saa->pagevid1 = saa->pagevid2 = saa->pagevid3 = saa->pagea1in = saa->pagea1out = saa->pagea2in = saa->pagea2out = saa->pagedebi = saa->dmaRPS1 = saa->dmaRPS2 = saa->pageRPS1 = saa->pageRPS2 = NULL; saa->audbuf = saa->vidbuf = saa->osdbuf = saa->dmadebi = NULL; saa->audhead = saa->vidtail = 0; init_waitqueue_head(&saa->i2cq); init_waitqueue_head(&saa->audq); init_waitqueue_head(&saa->debiq); init_waitqueue_head(&saa->vidq); spin_lock_init(&saa->lock); if (pci_enable_device(dev)) return -EIO; saa->id = dev->device; saa->irq = dev->irq; saa->video_dev.minor = -1; saa->saa7146_adr = pci_resource_start(dev, 0); pci_read_config_byte(dev, PCI_CLASS_REVISION, &saa->revision); saa->saa7146_mem = ioremap(saa->saa7146_adr, 0x200); if (!saa->saa7146_mem) return -EIO; memcpy(&(saa->i2c), &saa7146_i2c_bus_template, sizeof(struct i2c_bus)); memcpy(&saa->video_dev, &saa_template, sizeof(saa_template)); sprintf(saa->i2c.name, "stradis%d", num); saa->i2c.data = saa; saawrite(0, SAA7146_IER); /* turn off all interrupts */ result = request_irq(saa->irq, saa7146_irq, SA_SHIRQ | SA_INTERRUPT, "stradis", (void *) saa); if (result == -EINVAL) printk(KERN_ERR "stradis%d: Bad irq number or handler\n", num); if (result == -EBUSY) printk(KERN_ERR "stradis%d: IRQ %ld busy, change your PnP" " config in BIOS\n", num, saa->irq); if (result < 0) { iounmap(saa->saa7146_mem); return result; } pci_set_master(dev); if (video_register_device(&saa->video_dev, VFL_TYPE_GRABBER, video_nr) < 0) { iounmap(saa->saa7146_mem); return -1; } #if 0 /* i2c generic interface is currently BROKEN */ i2c_register_bus(&saa->i2c); #endif return 0; } static int init_saa7146(int i) { struct saa7146 *saa = &saa7146s[i]; saa->user = 0; /* reset the saa7146 */ saawrite(0xffff0000, SAA7146_MC1); mdelay(5); /* enable debi and i2c transfers and pins */ saawrite(((SAA7146_MC1_EDP | SAA7146_MC1_EI2C | SAA7146_MC1_TR_E_DEBI) << 16) | 0xffff, SAA7146_MC1); /* ensure proper state of chip */ saawrite(0x00000000, SAA7146_PAGE1); saawrite(0x00f302c0, SAA7146_NUM_LINE_BYTE1); saawrite(0x00000000, SAA7146_PAGE2); saawrite(0x01400080, SAA7146_NUM_LINE_BYTE2); saawrite(0x00000000, SAA7146_DD1_INIT); saawrite(0x00000000, SAA7146_DD1_STREAM_B); saawrite(0x00000000, SAA7146_DD1_STREAM_A); saawrite(0x00000000, SAA7146_BRS_CTRL); saawrite(0x80400040, SAA7146_BCS_CTRL); saawrite(0x0000e000 /*| (1<<29)*/, SAA7146_HPS_CTRL); saawrite(0x00000060, SAA7146_CLIP_FORMAT_CTRL); saawrite(0x00000000, SAA7146_ACON1); saawrite(0x00000000, SAA7146_ACON2); saawrite(0x00000600, SAA7146_I2C_STATUS); saawrite(((SAA7146_MC2_UPLD_D1_B | SAA7146_MC2_UPLD_D1_A | SAA7146_MC2_UPLD_BRS | SAA7146_MC2_UPLD_HPS_H | SAA7146_MC2_UPLD_HPS_V | SAA7146_MC2_UPLD_DMA2 | SAA7146_MC2_UPLD_DMA1 | SAA7146_MC2_UPLD_I2C) << 16) | 0xffff, SAA7146_MC2); /* setup arbitration control registers */ saawrite(0x1412121a, SAA7146_PCI_BT_V1); /* allocate 32k dma buffer + 4k for page table */ if ((saa->dmadebi = kmalloc(32768 + 4096, GFP_KERNEL)) == NULL) { printk(KERN_ERR "stradis%d: debi kmalloc failed\n", i); return -1; } #if 0 saa->pagedebi = saa->dmadebi + 32768; /* top 4k is for mmu */ saawrite(virt_to_bus(saa->pagedebi) /*|0x800 */ , SAA7146_DEBI_PAGE); for (i = 0; i < 12; i++) /* setup mmu page table */ saa->pagedebi[i] = virt_to_bus((saa->dmadebi + i * 4096)); #endif saa->audhead = saa->vidhead = saa->osdhead = 0; saa->audtail = saa->vidtail = saa->osdtail = 0; if (saa->vidbuf == NULL) if ((saa->vidbuf = vmalloc(524288)) == NULL) { printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr); return -ENOMEM; } if (saa->audbuf == NULL) if ((saa->audbuf = vmalloc(65536)) == NULL) { printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr); vfree(saa->vidbuf); saa->vidbuf = NULL; return -ENOMEM; } if (saa->osdbuf == NULL) if ((saa->osdbuf = vmalloc(131072)) == NULL) { printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr); vfree(saa->vidbuf); vfree(saa->audbuf); saa->vidbuf = saa->audbuf = NULL; return -ENOMEM; } /* allocate 81920 byte buffer for clipping */ if ((saa->dmavid2 = kmalloc(VIDEO_CLIPMAP_SIZE, GFP_KERNEL)) == NULL) { printk(KERN_ERR "stradis%d: clip kmalloc failed\n", saa->nr); vfree(saa->vidbuf); vfree(saa->audbuf); vfree(saa->osdbuf); saa->vidbuf = saa->audbuf = saa->osdbuf = NULL; saa->dmavid2 = NULL; return -1; } memset(saa->dmavid2, 0x00, VIDEO_CLIPMAP_SIZE); /* clip everything */ /* setup clipping registers */ saawrite(virt_to_bus(saa->dmavid2), SAA7146_BASE_EVEN2); saawrite(virt_to_bus(saa->dmavid2) + 128, SAA7146_BASE_ODD2); saawrite(virt_to_bus(saa->dmavid2) + VIDEO_CLIPMAP_SIZE, SAA7146_PROT_ADDR2); saawrite(256, SAA7146_PITCH2); saawrite(4, SAA7146_PAGE2); /* dma direction: read, no byteswap */ saawrite(((SAA7146_MC2_UPLD_DMA2) << 16) | SAA7146_MC2_UPLD_DMA2, SAA7146_MC2); I2CBusScan(&(saa->i2c)); return 0; } static void release_saa(void) { u8 command; int i; struct saa7146 *saa; for (i = 0; i < saa_num; i++) { saa = &saa7146s[i]; /* turn off all capturing, DMA and IRQs */ saawrite(0xffff0000, SAA7146_MC1); /* reset chip */ saawrite(0, SAA7146_MC2); saawrite(0, SAA7146_IER); saawrite(0xffffffffUL, SAA7146_ISR); #if 0 /* unregister i2c_bus */ i2c_unregister_bus((&saa->i2c)); #endif /* disable PCI bus-mastering */ pci_read_config_byte(saa->dev, PCI_COMMAND, &command); command &= ~PCI_COMMAND_MASTER; pci_write_config_byte(saa->dev, PCI_COMMAND, command); /* unmap and free memory */ saa->audhead = saa->audtail = saa->osdhead = 0; saa->vidhead = saa->vidtail = saa->osdtail = 0; if (saa->vidbuf) vfree(saa->vidbuf); if (saa->audbuf) vfree(saa->audbuf); if (saa->osdbuf) vfree(saa->osdbuf); if (saa->dmavid2) kfree((void *) saa->dmavid2); saa->audbuf = saa->vidbuf = saa->osdbuf = NULL; saa->dmavid2 = NULL; if (saa->dmadebi) kfree((void *) saa->dmadebi); if (saa->dmavid1) kfree((void *) saa->dmavid1); if (saa->dmavid2) kfree((void *) saa->dmavid2); if (saa->dmavid3) kfree((void *) saa->dmavid3); if (saa->dmaa1in) kfree((void *) saa->dmaa1in); if (saa->dmaa1out) kfree((void *) saa->dmaa1out); if (saa->dmaa2in) kfree((void *) saa->dmaa2in); if (saa->dmaa2out) kfree((void *) saa->dmaa2out); if (saa->dmaRPS1) kfree((void *) saa->dmaRPS1); if (saa->dmaRPS2) kfree((void *) saa->dmaRPS2); free_irq(saa->irq, saa); if (saa->saa7146_mem) iounmap(saa->saa7146_mem); if (saa->video_dev.minor != -1) video_unregister_device(&saa->video_dev); } } static int __init stradis_init (void) { struct pci_dev *dev = NULL; int result = 0, i; saa_num = 0; while ((dev = pci_find_device(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, dev))) { if (!dev->subsystem_vendor) printk(KERN_INFO "stradis%d: rev1 decoder\n", saa_num); else printk(KERN_INFO "stradis%d: SDM2xx found\n", saa_num); result = configure_saa7146(dev, saa_num++); if (result) return result; } if (saa_num) printk(KERN_INFO "stradis: %d card(s) found.\n", saa_num); else return -EINVAL; for (i = 0; i < saa_num; i++) if (init_saa7146(i) < 0) { release_saa(); return -EIO; } return 0; } static void __exit stradis_exit (void) { release_saa(); printk(KERN_INFO "stradis: module cleanup complete\n"); } module_init(stradis_init); module_exit(stradis_exit);
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