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| author | Juan Quintela <quintela@redhat.com> | 2009-08-31 16:07:31 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-09-09 14:55:16 -0500 |
| commit | b863d51490b7c6e339c9565eda786cadc1218d48 (patch) | |
| tree | e3c0eb8b3f77c22f2dae9ecfb05c237097c3ebc5 /hw/cirrus_vga.c | |
| parent | 22286bc6468adac10b2eb7e603f1a8ba524bfb03 (diff) | |
| download | qemu-b863d51490b7c6e339c9565eda786cadc1218d48.zip qemu-b863d51490b7c6e339c9565eda786cadc1218d48.tar.gz qemu-b863d51490b7c6e339c9565eda786cadc1218d48.tar.bz2 | |
cirrus_vga: rename cirrus_hook_read_cr() cirrus_vga_read_cr()
Simplify the logic to do everything inside the function. Return 0xff if index is out of range independetly of DEBUG_CIRRUS
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/cirrus_vga.c')
| -rw-r--r-- | hw/cirrus_vga.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c index 759da4a..86ab127 100644 --- a/hw/cirrus_vga.c +++ b/hw/cirrus_vga.c @@ -1583,8 +1583,7 @@ cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value) * ***************************************/ -static int -cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value) +static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index) { switch (reg_index) { case 0x00: // Standard VGA @@ -1612,10 +1611,9 @@ cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value) case 0x16: // Standard VGA case 0x17: // Standard VGA case 0x18: // Standard VGA - return CIRRUS_HOOK_NOT_HANDLED; + return s->vga.cr[s->vga.cr_index]; case 0x24: // Attribute Controller Toggle Readback (R) - *reg_value = (s->vga.ar_flip_flop << 7); - break; + return (s->vga.ar_flip_flop << 7); case 0x19: // Interlace End case 0x1a: // Miscellaneous Control case 0x1b: // Extended Display Control @@ -1624,20 +1622,16 @@ cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value) case 0x22: // Graphics Data Latches Readback (R) case 0x25: // Part Status case 0x27: // Part ID (R) - *reg_value = s->vga.cr[reg_index]; - break; + return s->vga.cr[s->vga.cr_index]; case 0x26: // Attribute Controller Index Readback (R) - *reg_value = s->vga.ar_index & 0x3f; + return s->vga.ar_index & 0x3f; break; default: #ifdef DEBUG_CIRRUS printf("cirrus: inport cr_index %02x\n", reg_index); - *reg_value = 0xff; #endif - break; + return 0xff; } - - return CIRRUS_HOOK_HANDLED; } static int @@ -2719,9 +2713,7 @@ static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr) break; case 0x3b5: case 0x3d5: - if (cirrus_hook_read_cr(c, s->cr_index, &val)) - break; - val = s->cr[s->cr_index]; + val = cirrus_vga_read_cr(c, s->cr_index); #ifdef DEBUG_VGA_REG printf("vga: read CR%x = 0x%02x\n", s->cr_index, val); #endif |