1.1 --- a/src/gdrom/linux.c	Fri Dec 29 00:23:16 2006 +0000
     1.2 +++ b/src/gdrom/linux.c	Fri Dec 29 00:24:43 2006 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: linux.c,v 1.1 2006-12-14 12:31:38 nkeynes Exp $
     1.6 + * $Id: linux.c,v 1.2 2006-12-29 00:24:43 nkeynes Exp $
     1.7   *
     1.8   * Linux cd-rom device driver
     1.9   *
    1.10 @@ -29,6 +29,7 @@
    1.11  
    1.12  #define MAXTOCENTRIES 600  /* This is a fairly generous overestimate really */
    1.13  #define MAXTOCSIZE 4 + (MAXTOCENTRIES*11)
    1.14 +#define MAX_SECTORS_PER_CALL 32
    1.15  
    1.16  #define MSFTOLBA( m,s,f ) (f + (s*CD_FRAMES) + (m*CD_FRAMES*CD_SECS))
    1.17  
    1.18 @@ -207,22 +208,31 @@
    1.19  {
    1.20      int fd = fileno(disc->file);
    1.21      uint32_t real_sector = sector - CD_MSF_OFFSET;
    1.22 -    int buflen = sector_count * 2048;
    1.23 +    uint32_t sector_size = 2048;
    1.24 +    int buflen = sector_count * sector_size;
    1.25 +    int i;
    1.26      char cmd[12] = { 0xBE, 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
    1.27 -    cmd[2] = (real_sector >> 24) & 0xFF;
    1.28 -    cmd[3] = (real_sector >> 16) & 0xFF;
    1.29 -    cmd[4] = (real_sector >> 8) & 0xFF;
    1.30 -    cmd[5] = real_sector & 0xFF;
    1.31 -    cmd[6] = (sector_count >> 16) & 0xFF;
    1.32 -    cmd[7] = (sector_count >> 8) & 0xFF;
    1.33 -    cmd[8] = sector_count & 0xFF;
    1.34 -    cmd[9] = 0x10;
    1.35 +
    1.36 +    for( i=0; i<sector_count; i += MAX_SECTORS_PER_CALL ) {
    1.37 +	int count = MIN(MAX_SECTORS_PER_CALL, sector_count);
    1.38 +	cmd[2] = (real_sector >> 24) & 0xFF;
    1.39 +	cmd[3] = (real_sector >> 16) & 0xFF;
    1.40 +	cmd[4] = (real_sector >> 8) & 0xFF;
    1.41 +	cmd[5] = real_sector & 0xFF;
    1.42 +	cmd[6] = (count >> 16) & 0xFF;
    1.43 +	cmd[7] = (count >> 8) & 0xFF;
    1.44 +	cmd[8] = count & 0xFF;
    1.45 +	cmd[9] = 0x10;
    1.46      
    1.47 -    gdrom_error_t status = linux_send_command( fd, cmd, buf, buflen, CGC_DATA_READ );
    1.48 -    if( status == 0 ) {
    1.49 -	*length = buflen;
    1.50 +	gdrom_error_t status = linux_send_command( fd, cmd, buf, count * sector_size, CGC_DATA_READ );
    1.51 +	if( status != 0 ) {
    1.52 +	    return status;
    1.53 +	}
    1.54 +	real_sector += count;
    1.55 +	buf += count * sector_size;
    1.56      }
    1.57 -    return status;
    1.58 +    *length = buflen;
    1.59 +    return 0;
    1.60  }
    1.61  
    1.62  /**