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drm/nouveau: implement init table op 0x57, INIT_LTIME 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net>
This commit is contained in:
Marcin Kościelnicki 2010-07-02 19:33:01 +00:00 committed by Ben Skeggs
parent 1ac7b528a0
commit e3a1924f3e
1 changed files with 26 additions and 0 deletions
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26
drivers/gpu/drm/nouveau/nouveau_bios.c
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@ -1927,6 +1927,31 @@ init_condition_time(struct nvbios *bios, uint16_t offset,
return 3;
}
static int
init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
{
/*
* INIT_LTIME opcode: 0x57 ('V')
*
* offset (8 bit): opcode
* offset + 1 (16 bit): time
*
* Sleep for "time" miliseconds.
*/
unsigned time = ROM16(bios->data[offset + 1]);
if (!iexec->execute)
return 3;
BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X miliseconds\n",
offset, time);
msleep(time);
return 3;
}
static int
init_zm_reg_sequence(struct nvbios *bios, uint16_t offset,
struct init_exec *iexec)
@ -3518,6 +3543,7 @@ static struct init_tbl_entry itbl_entry[] = {
{ "INIT_ZM_CR" , 0x53, init_zm_cr },
{ "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group },
{ "INIT_CONDITION_TIME" , 0x56, init_condition_time },
{ "INIT_LTIME" , 0x57, init_ltime },
{ "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
/* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
{ "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },