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2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 | /* * 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/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 <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(x) /* debug irq handler */ #undef MDEBUG(x) /* debug memory management */ #define SAA7146_MAX 6 static struct saa7146 saa7146s[SAA7146_MAX]; static int saa_num = 0; /* number of SAA7146s in use */ #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; } /* 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); } } 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 setings */ 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 > 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_init_done(struct video_device *dev) { 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; saa->video_dev.busy = 0; 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.busy = 0; 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 = { "SAA7146A", VID_TYPE_CAPTURE | VID_TYPE_OVERLAY, VID_HARDWARE_SAA7146, saa_open, saa_close, saa_read, saa_write, NULL, /* poll */ saa_ioctl, saa_mmap, saa_init_done, NULL, 0, 0 }; 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); saa->id = dev->device; saa->irq = dev->irq; saa->video_dev.minor = -1; saa->saa7146_adr = dev->resource[0].start; pci_read_config_byte(dev, PCI_CLASS_REVISION, &saa->revision); saa->saa7146_mem = ioremap(((saa->saa7146_adr) & PCI_BASE_ADDRESS_MEM_MASK), 0x200); 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) return result; pci_set_master(dev); if (video_register_device(&saa->video_dev, VFL_TYPE_GRABBER) < 0) 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); /* Should this be &=~ ?? */ 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); } } #ifdef MODULE int init_module(void) { #else int init_stradis_cards(struct video_init *unused) { #endif 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; } #ifdef MODULE void cleanup_module(void) { release_saa(); printk(KERN_INFO "stradis: module cleanup complete\n"); } #endif |