diff options
Diffstat (limited to 'vcd_read.h')
-rw-r--r-- | vcd_read.h | 187 |
1 files changed, 162 insertions, 25 deletions
diff --git a/vcd_read.h b/vcd_read.h index 3cecf74ac7..8bd0d017c6 100644 --- a/vcd_read.h +++ b/vcd_read.h @@ -1,4 +1,14 @@ //=================== VideoCD ========================== +#if defined(linux) || defined(sun) + +#if defined(linux) +#include <linux/cdrom.h> +#elif defined(sun) +#include <sys/cdio.h> +static int sun_vcd_read(int, int*); +#endif + + static struct cdrom_tocentry vcd_entry; static inline void vcd_set_msf(unsigned int sect){ @@ -65,34 +75,128 @@ void vcd_read_toc(int fd){ } } + static char vcd_buf[VCD_SECTOR_SIZE]; static int vcd_read(int fd,char *mem){ -#ifdef __sun - struct cdrom_cdxa xa; - xa.cdxa_addr = vcd_get_msf(); - xa.cdxa_length = CDROM_BLK_2352; - xa.cdxa_data = vcd_buf; - xa.cdxa_format = CDROM_XA_SECTOR_DATA; - if(ioctl(fd,CDROMCDXA,&xa)==-1) return 0; // EOF? -#else - memcpy(vcd_buf,&vcd_entry.cdte_addr.msf,sizeof(struct cdrom_msf)); - if(ioctl(fd,CDROMREADRAW,vcd_buf)==-1) return 0; // EOF? +#if defined(linux) + memcpy(vcd_buf,&vcd_entry.cdte_addr.msf,sizeof(struct cdrom_msf)); + if(ioctl(fd,CDROMREADRAW,vcd_buf)==-1) return 0; // EOF? + memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA); +#elif defined(sun) + { + int offset; + if (sun_vcd_read(fd, &offset) <= 0) return 0; + memcpy(mem,&vcd_buf[offset],VCD_SECTOR_DATA); + } #endif - vcd_entry.cdte_addr.msf.frame++; - if (vcd_entry.cdte_addr.msf.frame==75){ - vcd_entry.cdte_addr.msf.frame=0; - vcd_entry.cdte_addr.msf.second++; - if (vcd_entry.cdte_addr.msf.second==60){ - vcd_entry.cdte_addr.msf.second=0; - vcd_entry.cdte_addr.msf.minute++; - } - } + vcd_entry.cdte_addr.msf.frame++; + if (vcd_entry.cdte_addr.msf.frame==75){ + vcd_entry.cdte_addr.msf.frame=0; + vcd_entry.cdte_addr.msf.second++; + if (vcd_entry.cdte_addr.msf.second==60){ + vcd_entry.cdte_addr.msf.second=0; + vcd_entry.cdte_addr.msf.minute++; + } + } + + return VCD_SECTOR_DATA; +} - memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA); - return VCD_SECTOR_DATA; + +#ifdef sun +#include <sys/scsi/generic/commands.h> +#include <sys/scsi/impl/uscsi.h> + +#define SUN_XAREAD 1 /*fails on atapi drives*/ +#define SUN_MODE2READ 2 /*fails on atapi drives*/ +#define SUN_SCSIREAD 3 +#define SUN_VCDREAD SUN_SCSIREAD + +static int sun_vcd_read(int fd, int *offset) +{ +#if SUN_VCDREAD == SUN_XAREAD + struct cdrom_cdxa cdxa; + cdxa.cdxa_addr = vcd_get_msf(); + cdxa.cdxa_length = 1; + cdxa.cdxa_data = vcd_buf; + cdxa.cdxa_format = CDROM_XA_SECTOR_DATA; + + if(ioctl(fd,CDROMCDXA,&cdxa)==-1) { + perror("CDROMCDXA"); + return 0; + } + *offset = 0; +#elif SUN_VCDREAD == SUN_MODE2READ + struct cdrom_read cdread; + cdread.cdread_lba = 4*vcd_get_msf(); + cdread.cdread_bufaddr = vcd_buf; + cdread.cdread_buflen = 2336; + + if(ioctl(fd,CDROMREADMODE2,&cdread)==-1) { + perror("CDROMREADMODE2"); + return 0; + } + *offset = 8; +#elif SUN_VCDREAD == SUN_SCSIREAD + struct uscsi_cmd sc; + union scsi_cdb cdb; + int lba = vcd_get_msf(); + int blocks = 1; + int sector_type; + int sync, header_code, user_data, edc_ecc, error_field; + int sub_channel; + + /* sector_type = 3; /* mode2 */ + sector_type = 5; /* mode2/form2 */ + sync = 0; + header_code = 0; + user_data = 1; + edc_ecc = 0; + error_field = 0; + sub_channel = 0; + + memset(&cdb, 0, sizeof(cdb)); + memset(&sc, 0, sizeof(sc)); + cdb.scc_cmd = 0xBE; + cdb.cdb_opaque[1] = (sector_type) << 2; + cdb.cdb_opaque[2] = (lba >> 24) & 0xff; + cdb.cdb_opaque[3] = (lba >> 16) & 0xff; + cdb.cdb_opaque[4] = (lba >> 8) & 0xff; + cdb.cdb_opaque[5] = lba & 0xff; + cdb.cdb_opaque[6] = (blocks >> 16) & 0xff; + cdb.cdb_opaque[7] = (blocks >> 8) & 0xff; + cdb.cdb_opaque[8] = blocks & 0xff; + cdb.cdb_opaque[9] = (sync << 7) | + (header_code << 5) | + (user_data << 4) | + (edc_ecc << 3) | + (error_field << 1); + cdb.cdb_opaque[10] = sub_channel; + + sc.uscsi_cdb = &cdb; + sc.uscsi_cdblen = 12; + sc.uscsi_bufaddr = vcd_buf; + sc.uscsi_buflen = 2336; + sc.uscsi_flags = USCSI_ISOLATE | USCSI_READ; + sc.uscsi_timeout = 20; + if (ioctl(fd, USCSICMD, &sc)) { + perror("USCSICMD: READ CD"); + return -1; + } + if (sc.uscsi_status) { + fprintf(stderr, "scsi command failed with status %d\n", sc.uscsi_status); + return -1; + } + *offset = 0; + return 1; +#else +#error SUN_VCDREAD +#endif } +#endif /*sun*/ + //================== VCD CACHE ======================= #ifdef VCD_CACHE @@ -115,8 +219,9 @@ static inline void vcd_cache_seek(int sect){ } int vcd_cache_read(int fd,char* mem){ -int i; -char* vcd_buf; + int i; + char* vcd_buf; + for(i=0;i<vcd_cache_size;i++) if(vcd_cache_sectors[i]==vcd_cache_current){ // found in the cache! :) @@ -131,11 +236,43 @@ char* vcd_buf; ++vcd_cache_index;if(vcd_cache_index>=vcd_cache_size)vcd_cache_index=0; // read data! vcd_set_msf(vcd_cache_current); +#if defined(linux) memcpy(vcd_buf,&vcd_entry.cdte_addr.msf,sizeof(struct cdrom_msf)); if(ioctl(fd,CDROMREADRAW,vcd_buf)==-1) return 0; // EOF? - ++vcd_cache_current; memcpy(mem,&vcd_buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA); +#elif defined(sun) + { + int offset; + if (sun_vcd_read(fd, &offset) <= 0) return 0; + memcpy(mem,&vcd_buf[offset],VCD_SECTOR_DATA); + } +#endif + ++vcd_cache_current; return VCD_SECTOR_DATA; } - #endif + +#else /* linux || sun */ + +int vcd_seek_to_track(int fd,int track) +{ + return -1; +} + +int vcd_get_track_end(int fd,int track) +{ + return -1; +} + +void vcd_read_toc(int fd) +{ +} + +static char vcd_buf[VCD_SECTOR_SIZE]; + +static int vcd_read(int fd,char *mem) +{ + return -1; +} + +#endif /* !linux && !sun */ |