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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "intc.h"
#include "it83xx_pd.h"
#include "kmsc_chip.h"
#include "registers.h"
#include "task.h"
#include "tcpm.h"
#include "usb_pd.h"
#include "console.h"
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
#ifdef CONFIG_USB_PD_TCPM_ITE83XX
/* Store each port last message id of received packet */
static uint8_t message_id_last[USBPD_PORT_COUNT];
/* Invalidate last received message id variable */
void invalidate_last_message_id(int port)
{
/*
* Message id starts from 0 to 7. If static global variable
* message_id_last is initialed 0, it will occur repetitive message id
* with first received packet, so we initial an invalid value 0xff.
*/
message_id_last[port] = 0xff;
}
static int consume_repeat_message(int port)
{
uint16_t msg_header = IT83XX_USBPD_RMH(port);
int msg_id = PD_HEADER_ID(msg_header);
/* pre-set not repeat */
int ret = 0;
/*
* Check does message id repeat? if yes don't respond subsequent
* messages, except softreset control request.
*/
if (PD_HEADER_TYPE(msg_header) == PD_CTRL_SOFT_RESET &&
PD_HEADER_CNT(msg_header) == 0)
invalidate_last_message_id(port);
else if (message_id_last[port] != msg_id)
message_id_last[port] = msg_id;
else if (message_id_last[port] == msg_id) {
/* If clear this bit, USBPD receives next packet */
IT83XX_USBPD_MRSR(port) = USBPD_REG_MASK_RX_MSG_VALID;
CPRINTS("receive repetitive msg id: p[%d] id=%d", port, msg_id);
ret = 1;
}
return ret;
}
static void chip_pd_irq(enum usbpd_port port)
{
task_clear_pending_irq(usbpd_ctrl_regs[port].irq);
/* check status */
if (USBPD_IS_HARD_RESET_DETECT(port)) {
/* clear interrupt */
IT83XX_USBPD_ISR(port) = USBPD_REG_MASK_HARD_RESET_DETECT;
/* Invalidate last received message id variable */
invalidate_last_message_id(port);
task_set_event(PD_PORT_TO_TASK_ID(port),
PD_EVENT_TCPC_RESET, 0);
} else {
if (USBPD_IS_RX_DONE(port)) {
if (!consume_repeat_message(port))
tcpm_enqueue_message(port);
/* clear RX done interrupt */
IT83XX_USBPD_ISR(port) = USBPD_REG_MASK_MSG_RX_DONE;
}
if (USBPD_IS_TX_DONE(port)) {
/* clear TX done interrupt */
IT83XX_USBPD_ISR(port) = USBPD_REG_MASK_MSG_TX_DONE;
task_set_event(PD_PORT_TO_TASK_ID(port),
TASK_EVENT_PHY_TX_DONE, 0);
}
}
}
#endif
void intc_cpu_int_group_5(void)
{
/* Determine interrupt number. */
int intc_group_5 = intc_get_ec_int();
switch (intc_group_5) {
#if defined(CONFIG_HOSTCMD_X86) && defined(HAS_TASK_KEYPROTO)
case IT83XX_IRQ_KBC_OUT:
lpc_kbc_obe_interrupt();
break;
case IT83XX_IRQ_KBC_IN:
lpc_kbc_ibf_interrupt();
break;
#endif
default:
break;
}
}
DECLARE_IRQ(CPU_INT_GROUP_5, intc_cpu_int_group_5, 2);
void intc_cpu_int_group_4(void)
{
/* Determine interrupt number. */
int intc_group_4 = intc_get_ec_int();
switch (intc_group_4) {
#ifdef CONFIG_HOSTCMD_X86
case IT83XX_IRQ_PMC_IN:
pm1_ibf_interrupt();
break;
case IT83XX_IRQ_PMC2_IN:
pm2_ibf_interrupt();
break;
case IT83XX_IRQ_PMC3_IN:
pm3_ibf_interrupt();
break;
case IT83XX_IRQ_PMC4_IN:
pm4_ibf_interrupt();
break;
case IT83XX_IRQ_PMC5_IN:
pm5_ibf_interrupt();
break;
#endif
default:
break;
}
}
DECLARE_IRQ(CPU_INT_GROUP_4, intc_cpu_int_group_4, 2);
void intc_cpu_int_group_12(void)
{
/* Determine interrupt number. */
int intc_group_12 = intc_get_ec_int();
switch (intc_group_12) {
#ifdef CONFIG_PECI
case IT83XX_IRQ_PECI:
peci_interrupt();
break;
#endif
#ifdef CONFIG_HOSTCMD_ESPI
case IT83XX_IRQ_ESPI:
espi_interrupt();
break;
case IT83XX_IRQ_ESPI_VW:
espi_vw_interrupt();
break;
#endif
#ifdef CONFIG_USB_PD_TCPM_ITE83XX
case IT83XX_IRQ_USBPD0:
chip_pd_irq(USBPD_PORT_A);
break;
case IT83XX_IRQ_USBPD1:
chip_pd_irq(USBPD_PORT_B);
break;
#endif /* CONFIG_USB_PD_TCPM_ITE83XX */
default:
break;
}
}
DECLARE_IRQ(CPU_INT_GROUP_12, intc_cpu_int_group_12, 2);
void intc_cpu_int_group_7(void)
{
/* Determine interrupt number. */
int intc_group_7 = intc_get_ec_int();
switch (intc_group_7) {
#ifdef CONFIG_ADC
case IT83XX_IRQ_ADC:
adc_interrupt();
break;
#endif
default:
break;
}
}
DECLARE_IRQ(CPU_INT_GROUP_7, intc_cpu_int_group_7, 2);
void intc_cpu_int_group_6(void)
{
/* Determine interrupt number. */
int intc_group_6 = intc_get_ec_int();
switch (intc_group_6) {
#ifdef CONFIG_I2C
case IT83XX_IRQ_SMB_A:
i2c_interrupt(IT83XX_I2C_CH_A);
break;
case IT83XX_IRQ_SMB_B:
i2c_interrupt(IT83XX_I2C_CH_B);
break;
case IT83XX_IRQ_SMB_C:
i2c_interrupt(IT83XX_I2C_CH_C);
break;
case IT83XX_IRQ_SMB_D:
i2c_interrupt(IT83XX_I2C_CH_D);
break;
case IT83XX_IRQ_SMB_E:
i2c_interrupt(IT83XX_I2C_CH_E);
break;
case IT83XX_IRQ_SMB_F:
i2c_interrupt(IT83XX_I2C_CH_F);
break;
#endif
default:
break;
}
}
DECLARE_IRQ(CPU_INT_GROUP_6, intc_cpu_int_group_6, 2);
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