void pm1_ibf_interrupt(void)
{
int is_cmd;
uint8_t value, result;
if (pm_get_status(LPC_ACPI_CMD) & EC_LPC_STATUS_FROM_HOST) {
/* Set the busy bit */
pm_set_status(LPC_ACPI_CMD, EC_LPC_STATUS_PROCESSING, 1);
/* data from command port or data port */
is_cmd = pm_get_status(LPC_ACPI_CMD) & EC_LPC_STATUS_LAST_CMD;
/* Get command or data */
value = pm_get_data_in(LPC_ACPI_CMD);
/* Handle whatever this was. */
if (acpi_ap_to_ec(is_cmd, value, &result))
pm_put_data_out(LPC_ACPI_CMD, result);
/* Clear the busy bit */
pm_set_status(LPC_ACPI_CMD, EC_LPC_STATUS_PROCESSING, 0);
/*
* ACPI 5.0-12.6.1: Generate SCI for Input Buffer Empty
* Output Buffer Full condition on the kernel channel.
*/
lpc_generate_sci();
}
task_clear_pending_irq(IT83XX_IRQ_PMC_IN);
}
void acpi_0_interrupt(void)
{
uint8_t value, result, is_cmd;
is_cmd = MEC1322_ACPI_EC_STATUS(0) & EC_LPC_STATUS_LAST_CMD;
/* Set the bust bi */
MEC1322_ACPI_EC_STATUS(0) |= EC_LPC_STATUS_PROCESSING;
/* Read command/data; this clears the FRMH bit. */
value = MEC1322_ACPI_EC_OS2EC(0, 0);
/* Handle whatever this was. */
if (acpi_ap_to_ec(is_cmd, value, &result))
MEC1322_ACPI_EC_EC2OS(0, 0) = result;
/* Clear the busy bit */
MEC1322_ACPI_EC_STATUS(0) &= ~EC_LPC_STATUS_PROCESSING;
/*
* ACPI 5.0-12.6.1: Generate SCI for Input Buffer Empty / Output Buffer
* Full condition on the kernel channel.
*/
lpc_generate_sci();
}
/**
* Handle write to ACPI I/O port
*
* @param is_cmd Is write command (is_cmd=1) or data (is_cmd=0)
*/
static void handle_acpi_write(int is_cmd)
{
uint8_t value, result;
/* Read command/data; this clears the FRMH status bit. */
value = NPCX_HIPMDI(PMC_ACPI);
/* Handle whatever this was. */
if (acpi_ap_to_ec(is_cmd, value, &result))
NPCX_HIPMDO(PMC_ACPI) = result;
/*
* ACPI 5.0-12.6.1: Generate SCI for Input Buffer Empty / Output Buffer
* Full condition on the kernel channel.
*/
lpc_generate_sci();
}
/**
* Handle write to ACPI I/O port
*
* @param is_cmd Is write command (is_cmd=1) or data (is_cmd=0)
*/
static void handle_acpi_write(int is_cmd)
{
uint8_t value, result;
/* Set processing flag before reading command byte */
SET_BIT(NPCX_HIPMST(PMC_ACPI), NPCX_HIPMST_F0);
/* Read command/data; this clears the FRMH status bit. */
value = NPCX_HIPMDI(PMC_ACPI);
/* Handle whatever this was. */
if (acpi_ap_to_ec(is_cmd, value, &result))
NPCX_HIPMDO(PMC_ACPI) = result;
/* Clear processing flag */
CLEAR_BIT(NPCX_HIPMST(PMC_ACPI), NPCX_HIPMST_F0);
/*
* ACPI 5.0-12.6.1: Generate SCI for Input Buffer Empty / Output Buffer
* Full condition on the kernel channel.
*/
lpc_generate_sci();
}
/**
* Handle write to ACPI I/O port
*
* @param is_cmd Is write command (is_cmd=1) or data (is_cmd=0)
*/
static void handle_acpi_write(int is_cmd)
{
uint8_t value, result;
/* Set the busy bit */
LM4_LPC_ST(LPC_CH_ACPI) |= LM4_LPC_ST_BUSY;
/* Read command/data; this clears the FRMH status bit. */
value = LPC_POOL_ACPI[0];
/* Handle whatever this was. */
if (acpi_ap_to_ec(is_cmd, value, &result))
LPC_POOL_ACPI[1] = result;
/* Clear the busy bit */
LM4_LPC_ST(LPC_CH_ACPI) &= ~LM4_LPC_ST_BUSY;
/*
* ACPI 5.0-12.6.1: Generate SCI for Input Buffer Empty / Output Buffer
* Full condition on the kernel channel.
*/
lpc_generate_sci();
}
