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Reworked ACPI button routines to make them more flexible, and remove the need for the power management daemon to care about ACPI in particular.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11462 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Nathan Whitehorn 2005-02-23 20:36:33 +00:00
parent a84dde4cde
commit 91fbc56d75
1 changed files with 29 additions and 20 deletions
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49
src/add-ons/kernel/drivers/power/acpi_button/acpi_button.c
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@ -37,6 +37,15 @@ uninit_driver (void)
static status_t
acpi_button_open (const char *name, uint32 flags, void** cookie)
{
if (strcmp(name,"power/button/power") == 0) {
*cookie = (void *)ACPI_BITREG_POWER_BUTTON_STATUS;
acpi->write_acpi_reg(ACPI_BITREG_POWER_BUTTON_ENABLE,0);
} else if (strcmp(name,"power/button/sleep") == 0) {
*cookie = (void *)ACPI_BITREG_SLEEP_BUTTON_STATUS;
acpi->write_acpi_reg(ACPI_BITREG_SLEEP_BUTTON_ENABLE,0);
} else {
return B_ERROR;
}
return B_OK;
}
@ -48,8 +57,13 @@ acpi_button_open (const char *name, uint32 flags, void** cookie)
static status_t
acpi_button_read (void* cookie, off_t position, void *buf, size_t* num_bytes)
{
*num_bytes = 0; /* tell caller nothing was read */
return B_IO_ERROR;
if (*num_bytes < 1)
return B_IO_ERROR;
*((uint8 *)(buf)) = acpi->read_acpi_reg((uint32)(cookie));
acpi->write_acpi_reg((uint32)(cookie),0); //--- Clear sticky status reg
*num_bytes = 1;
return B_OK;
}
@ -60,8 +74,12 @@ acpi_button_read (void* cookie, off_t position, void *buf, size_t* num_bytes)
static status_t
acpi_button_write (void* cookie, off_t position, const void* buffer, size_t* num_bytes)
{
*num_bytes = 0; /* tell caller nothing was written */
return B_IO_ERROR;
if (*num_bytes < 1)
return B_IO_ERROR;
acpi->write_acpi_reg((uint32)(cookie),*((uint8 *)(buffer)));
*num_bytes = 1;
return B_OK;
}
@ -72,21 +90,7 @@ acpi_button_write (void* cookie, off_t position, const void* buffer, size_t* num
static status_t
acpi_button_control (void* cookie, uint32 op, void* arg, size_t len)
{
switch (op) {
case ~ACPI_BITREG_POWER_BUTTON_ENABLE:
case ~ACPI_BITREG_SLEEP_BUTTON_ENABLE:
case ~ACPI_BITREG_POWER_BUTTON_STATUS:
case ~ACPI_BITREG_SLEEP_BUTTON_STATUS:
acpi->write_acpi_reg(~op,*((uint32 *)(arg)));
break;
case ACPI_BITREG_POWER_BUTTON_STATUS:
case ACPI_BITREG_SLEEP_BUTTON_STATUS:
*((uint32 *)(arg)) = acpi->read_acpi_reg(op);
break;
default:
return B_ERROR;
}
return B_OK;
return B_ERROR;
}
@ -97,6 +101,10 @@ acpi_button_control (void* cookie, uint32 op, void* arg, size_t len)
static status_t
acpi_button_close (void* cookie)
{
if ((uint32)(cookie) == ACPI_BITREG_POWER_BUTTON_STATUS)
acpi->write_acpi_reg(ACPI_BITREG_POWER_BUTTON_ENABLE,1);
else if ((uint32)(cookie) == ACPI_BITREG_SLEEP_BUTTON_STATUS)
acpi->write_acpi_reg(ACPI_BITREG_SLEEP_BUTTON_ENABLE,1);
return B_OK;
}
@ -117,7 +125,8 @@ acpi_button_free (void* cookie)
----- */
static const char *acpi_button_name[] = {
"power/acpi_button",
"power/button/power",
"power/button/sleep",
NULL
};