void lpc_pmc_ibf_interrupt(void){
/* Channel-1 for ACPI usage*/
/* Channel-2 for Host Command usage , so the argument data had been
* put on the share memory firstly*/
if (NPCX_HIPMST(PM_CHAN_1) & 0x02)
handle_acpi_write((NPCX_HIPMST(PM_CHAN_1)&0x08) ? 1 : 0);
else if (NPCX_HIPMST(PM_CHAN_2)&0x02)
handle_host_write((NPCX_HIPMST(PM_CHAN_2)&0x08) ? 1 : 0);
}
/**
* LPC interrupt handler
*/
void lpc_interrupt(void)
{
uint32_t mis = LM4_LPC_LPCMIS;
uint32_t st;
/* Clear the interrupt bits we're handling */
LM4_LPC_LPCIC = mis;
#ifdef HAS_TASK_HOSTCMD
/* Handle ACPI command and data writes */
st = LM4_LPC_ST(LPC_CH_ACPI);
if (st & LM4_LPC_ST_FRMH)
handle_acpi_write(st & LM4_LPC_ST_CMD);
/* Handle user command writes */
st = LM4_LPC_ST(LPC_CH_CMD);
if (st & LM4_LPC_ST_FRMH)
handle_host_write(st & LM4_LPC_ST_CMD);
#endif
/*
* Handle port 80 writes (CH0MIS1). Due to crosbug.com/p/12349 the
* interrupt status (mis & LM4_LPC_INT_MASK(LPC_CH_PORT80, 2))
* apparently gets lost on back-to-back writes to port 80, so check the
* FRMH bit in the channel status register to see if a write is
* pending. Loop to handle bursts of back-to-back writes.
*/
while (LM4_LPC_ST(LPC_CH_PORT80) & LM4_LPC_ST_FRMH)
port_80_write(LPC_POOL_PORT80[0]);
#ifdef HAS_TASK_KEYPROTO
/* Handle keyboard interface writes */
st = LM4_LPC_ST(LPC_CH_KEYBOARD);
if (st & LM4_LPC_ST_FRMH)
keyboard_host_write(LPC_POOL_KEYBOARD[0], st & LM4_LPC_ST_CMD);
if (mis & LM4_LPC_INT_MASK(LPC_CH_KEYBOARD, 1)) {
/* Host read data; wake up task to send remaining bytes */
task_wake(TASK_ID_KEYPROTO);
}
#endif
#ifdef CONFIG_UART_HOST
/* Handle COMx */
if (lpc_comx_has_char()) {
/* Copy a character to the UART if there's space */
if (uart_comx_putc_ok())
uart_comx_putc(lpc_comx_get_char());
}
#endif
/* Debugging: print changes to LPC0RESET */
if (mis & (1 << 31)) {
if (LM4_LPC_LPCSTS & (1 << 10)) {
int i;
/* Store port 80 reset event */
port_80_write(PORT_80_EVENT_RESET);
/*
* Workaround for crosbug.com/p/12349; clear all FRMH
* bits so host writes will trigger interrupts.
*/
for (i = 0; i < 8; i++)
LM4_LPC_ST(i) &= ~LM4_LPC_ST_FRMH;
}
CPRINTS("LPC RESET# %sasserted",
lpc_get_pltrst_asserted() ? "" : "de");
}
}
