diff options
Diffstat (limited to 'driver/tcpm/it8xxx2.c')
| -rw-r--r-- | driver/tcpm/it8xxx2.c | 192 |
1 files changed, 99 insertions, 93 deletions
diff --git a/driver/tcpm/it8xxx2.c b/driver/tcpm/it8xxx2.c index e1d4ad5d5c..6782b528e5 100644 --- a/driver/tcpm/it8xxx2.c +++ b/driver/tcpm/it8xxx2.c @@ -1,10 +1,11 @@ -/* Copyright 2020 The Chromium OS Authors. All rights reserved. +/* Copyright 2020 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* TCPM on ITE chip it8xxx2 with embedded TCPC */ +#include "builtin/assert.h" #include "common.h" #include "config.h" #include "console.h" @@ -22,8 +23,8 @@ #ifdef CONFIG_USB_PD_TCPMV1 #if defined(CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE) || \ - defined(CONFIG_USB_PD_VBUS_DETECT_TCPC) || \ - defined(CONFIG_USB_PD_TCPC_LOW_POWER) || \ + defined(CONFIG_USB_PD_VBUS_DETECT_TCPC) || \ + defined(CONFIG_USB_PD_TCPC_LOW_POWER) || \ defined(CONFIG_USB_PD_DISCHARGE_TCPC) #error "Unsupported config options of IT8xxx2 PD driver" #endif @@ -36,17 +37,17 @@ #endif #endif -#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) +#define CPRINTS(format, args...) cprints(CC_USBPD, format, ##args) bool rx_en[IT83XX_USBPD_PHY_PORT_COUNT]; STATIC_IF(CONFIG_USB_PD_DECODE_SOP) - bool sop_prime_en[IT83XX_USBPD_PHY_PORT_COUNT]; -static uint8_t tx_error_status[IT83XX_USBPD_PHY_PORT_COUNT] = {0}; +bool sop_prime_en[IT83XX_USBPD_PHY_PORT_COUNT]; +static uint8_t tx_error_status[IT83XX_USBPD_PHY_PORT_COUNT] = { 0 }; const struct usbpd_ctrl_t usbpd_ctrl_regs[] = { - {&IT83XX_GPIO_GPCRF4, &IT83XX_GPIO_GPCRF5, IT83XX_IRQ_USBPD0}, - {&IT83XX_GPIO_GPCRH1, &IT83XX_GPIO_GPCRH2, IT83XX_IRQ_USBPD1}, - {&IT83XX_GPIO_GPCRP0, &IT83XX_GPIO_GPCRP1, IT83XX_IRQ_USBPD2}, + { &IT83XX_GPIO_GPCRF4, &IT83XX_GPIO_GPCRF5, IT83XX_IRQ_USBPD0 }, + { &IT83XX_GPIO_GPCRH1, &IT83XX_GPIO_GPCRH2, IT83XX_IRQ_USBPD1 }, + { &IT83XX_GPIO_GPCRP0, &IT83XX_GPIO_GPCRP1, IT83XX_IRQ_USBPD2 }, }; BUILD_ASSERT(ARRAY_SIZE(usbpd_ctrl_regs) >= IT83XX_USBPD_PHY_PORT_COUNT); @@ -58,8 +59,8 @@ BUILD_ASSERT(ARRAY_SIZE(usbpd_ctrl_regs) >= IT83XX_USBPD_PHY_PORT_COUNT); void it83xx_Rd_5_1K_only_for_hibernate(int port) { uint8_t cc_config = (port == USBPD_PORT_C ? - IT83XX_USBPD_CC_PIN_CONFIG2 : - IT83XX_USBPD_CC_PIN_CONFIG); + IT83XX_USBPD_CC_PIN_CONFIG2 : + IT83XX_USBPD_CC_PIN_CONFIG); /* This only apply to active PD port */ if (*usbpd_ctrl_regs[port].cc1 == cc_config && @@ -130,7 +131,7 @@ static enum tcpc_cc_voltage_status it8xxx2_get_cc(enum usbpd_port port, cc_state = TYPEC_CC_VOLT_OPEN; break; } - /* Source */ + /* Source */ } else { if (cc_pin == USBPD_CC_PIN_1) dfp_volt = USBPD_GET_SRC_COMPARE_CC1_VOLT(port); @@ -214,12 +215,12 @@ static enum tcpc_transmit_complete it8xxx2_tx_data(enum usbpd_port port, * Bit[2:0] Tx message type * 000b=SOP, 001b=SOP', 010b=SOP", 011b=Debug SOP', 100b=Debug SOP''. */ - IT83XX_USBPD_MTSR0(port) = - (IT83XX_USBPD_MTSR0(port) & ~0x7) | (type & 0x7); + IT83XX_USBPD_MTSR0(port) = (IT83XX_USBPD_MTSR0(port) & ~0x7) | + (type & 0x7); /* According PD version set HW auto retry count */ IT83XX_USBPD_PDCSR0(port) = (IT83XX_USBPD_PDCSR0(port) & ~0xC0) | - (retry_count << 6); + (retry_count << 6); /* Limited by PD_HEADER_CNT() */ ASSERT(length <= 0x7); @@ -244,7 +245,7 @@ static enum tcpc_transmit_complete it8xxx2_tx_data(enum usbpd_port port, */ if (tx_error_status[port] || (evt & TASK_EVENT_TIMER)) { if (tx_error_status[port] & - USBPD_REG_MASK_TX_NOT_EN_STAT) { + USBPD_REG_MASK_TX_NOT_EN_STAT) { CPRINTS("p%d TxErr: Tx EN and resend", port); tx_error_status[port] &= ~USBPD_REG_MASK_TX_NOT_EN_STAT; @@ -252,13 +253,13 @@ static enum tcpc_transmit_complete it8xxx2_tx_data(enum usbpd_port port, USBPD_REG_MASK_TX_MESSAGE_ENABLE; continue; } else if (tx_error_status[port] & - USBPD_REG_MASK_TX_DISCARD_STAT) { + USBPD_REG_MASK_TX_DISCARD_STAT) { CPRINTS("p%d TxErr: Discard and resend", port); tx_error_status[port] &= ~USBPD_REG_MASK_TX_DISCARD_STAT; continue; } else if (tx_error_status[port] & - USBPD_REG_MASK_TX_NO_RESPONSE_STAT) { + USBPD_REG_MASK_TX_NO_RESPONSE_STAT) { /* HW had automatically resent message twice */ tx_error_status[port] &= ~USBPD_REG_MASK_TX_NO_RESPONSE_STAT; @@ -290,8 +291,8 @@ static enum tcpc_transmit_complete it8xxx2_send_hw_reset(enum usbpd_port port) return TCPC_TX_COMPLETE_SUCCESS; } -static enum tcpc_transmit_complete it8xxx2_send_cable_reset( - enum usbpd_port port) +static enum tcpc_transmit_complete +it8xxx2_send_cable_reset(enum usbpd_port port) { /* Send cable reset */ USBPD_SEND_CABLE_RESET(port); @@ -324,14 +325,16 @@ static void it8xxx2_enable_vconn(enum usbpd_port port, int enabled) /* Disable unused CC to become VCONN */ if (cc_pin == USBPD_CC_PIN_1) { IT83XX_USBPD_CCCSR(port) = USBPD_CC2_DISCONNECTED(port); - IT83XX_USBPD_CCPSR(port) = (IT83XX_USBPD_CCPSR(port) - & ~USBPD_REG_MASK_DISCONNECT_POWER_CC2) - | USBPD_REG_MASK_DISCONNECT_POWER_CC1; + IT83XX_USBPD_CCPSR(port) = + (IT83XX_USBPD_CCPSR(port) & + ~USBPD_REG_MASK_DISCONNECT_POWER_CC2) | + USBPD_REG_MASK_DISCONNECT_POWER_CC1; } else { IT83XX_USBPD_CCCSR(port) = USBPD_CC1_DISCONNECTED(port); - IT83XX_USBPD_CCPSR(port) = (IT83XX_USBPD_CCPSR(port) - & ~USBPD_REG_MASK_DISCONNECT_POWER_CC1) - | USBPD_REG_MASK_DISCONNECT_POWER_CC2; + IT83XX_USBPD_CCPSR(port) = + (IT83XX_USBPD_CCPSR(port) & + ~USBPD_REG_MASK_DISCONNECT_POWER_CC1) | + USBPD_REG_MASK_DISCONNECT_POWER_CC2; } } else { /* Connect cc analog module (ex.UP/RD/DET/TX/RX) */ @@ -340,7 +343,7 @@ static void it8xxx2_enable_vconn(enum usbpd_port port, int enabled) /* Disable cc 5v tolerant */ IT83XX_USBPD_CCPSR(port) |= (USBPD_REG_MASK_DISCONNECT_POWER_CC1 | - USBPD_REG_MASK_DISCONNECT_POWER_CC2); + USBPD_REG_MASK_DISCONNECT_POWER_CC2); } } @@ -440,8 +443,7 @@ static int it8xxx2_tcpm_release(int port) return EC_ERROR_UNIMPLEMENTED; } -static int it8xxx2_tcpm_get_cc(int port, - enum tcpc_cc_voltage_status *cc1, +static int it8xxx2_tcpm_get_cc(int port, enum tcpc_cc_voltage_status *cc1, enum tcpc_cc_voltage_status *cc2) { *cc2 = it8xxx2_get_cc(port, USBPD_CC_PIN_2); @@ -487,7 +489,8 @@ static int it8xxx2_tcpm_set_polarity(int port, enum tcpc_cc_polarity polarity) { enum usbpd_cc_pin cc_pin = (polarity == POLARITY_CC1 || polarity == POLARITY_CC1_DTS) ? - USBPD_CC_PIN_1 : USBPD_CC_PIN_2; + USBPD_CC_PIN_1 : + USBPD_CC_PIN_2; it8xxx2_select_polarity(port, cc_pin); @@ -504,13 +507,11 @@ __maybe_unused static int it8xxx2_tcpm_decode_sop_prime_enable(int port, return EC_SUCCESS; if (enable) - IT83XX_USBPD_PDCSR1(port) |= - (USBPD_REG_MASK_SOPP_RX_ENABLE | - USBPD_REG_MASK_SOPPP_RX_ENABLE); + IT83XX_USBPD_PDCSR1(port) |= (USBPD_REG_MASK_SOPP_RX_ENABLE | + USBPD_REG_MASK_SOPPP_RX_ENABLE); else - IT83XX_USBPD_PDCSR1(port) &= - ~(USBPD_REG_MASK_SOPP_RX_ENABLE | - USBPD_REG_MASK_SOPPP_RX_ENABLE); + IT83XX_USBPD_PDCSR1(port) &= ~(USBPD_REG_MASK_SOPP_RX_ENABLE | + USBPD_REG_MASK_SOPPP_RX_ENABLE); return EC_SUCCESS; } @@ -535,7 +536,8 @@ static int it8xxx2_tcpm_set_vconn(int port, int enable) /* Turn on Vconn power switch. */ board_pd_vconn_ctrl(port, USBPD_GET_PULL_CC_SELECTION(port) ? - USBPD_CC_PIN_2 : USBPD_CC_PIN_1, + USBPD_CC_PIN_2 : + USBPD_CC_PIN_1, enable); } else { /* @@ -592,26 +594,25 @@ static int it8xxx2_tcpm_set_rx_enable(int port, int enable) if (enable) { IT83XX_USBPD_IMR(port) &= ~USBPD_REG_MASK_MSG_RX_DONE; IT83XX_USBPD_PDCSR1(port) |= - (USBPD_REG_MASK_SOP_RX_ENABLE | - USBPD_REG_MASK_HARD_RESET_RX_ENABLE); + (USBPD_REG_MASK_SOP_RX_ENABLE | + USBPD_REG_MASK_HARD_RESET_RX_ENABLE); if (IS_ENABLED(CONFIG_USB_PD_DECODE_SOP)) - it8xxx2_tcpm_decode_sop_prime_enable(port, - sop_prime_en[port]); + it8xxx2_tcpm_decode_sop_prime_enable( + port, sop_prime_en[port]); } else { IT83XX_USBPD_IMR(port) |= USBPD_REG_MASK_MSG_RX_DONE; - IT83XX_USBPD_PDCSR1(port) &= ~(USBPD_REG_MASK_SOP_RX_ENABLE | - USBPD_REG_MASK_SOPP_RX_ENABLE | - USBPD_REG_MASK_SOPPP_RX_ENABLE | - USBPD_REG_MASK_HARD_RESET_RX_ENABLE); + IT83XX_USBPD_PDCSR1(port) &= + ~(USBPD_REG_MASK_SOP_RX_ENABLE | + USBPD_REG_MASK_SOPP_RX_ENABLE | + USBPD_REG_MASK_SOPPP_RX_ENABLE | + USBPD_REG_MASK_HARD_RESET_RX_ENABLE); } return EC_SUCCESS; } -static int it8xxx2_tcpm_transmit(int port, - enum tcpci_msg_type type, - uint16_t header, - const uint32_t *data) +static int it8xxx2_tcpm_transmit(int port, enum tcpci_msg_type type, + uint16_t header, const uint32_t *data) { int status = TCPC_TX_COMPLETE_FAILED; @@ -621,10 +622,7 @@ static int it8xxx2_tcpm_transmit(int port, case TCPCI_MSG_SOP_PRIME_PRIME: case TCPCI_MSG_SOP_DEBUG_PRIME: case TCPCI_MSG_SOP_DEBUG_PRIME_PRIME: - status = it8xxx2_tx_data(port, - type, - header, - data); + status = it8xxx2_tx_data(port, type, header, data); break; case TCPCI_MSG_TX_BIST_MODE_2: it8xxx2_send_bist_mode2_pattern(port); @@ -645,12 +643,13 @@ static int it8xxx2_tcpm_transmit(int port, return EC_SUCCESS; } -static int it8xxx2_tcpm_get_chip_info(int port, int live, - struct ec_response_pd_chip_info_v1 *chip_info) +static int +it8xxx2_tcpm_get_chip_info(int port, int live, + struct ec_response_pd_chip_info_v1 *chip_info) { chip_info->vendor_id = USB_VID_ITE; - chip_info->product_id = ((IT83XX_GCTRL_CHIPID1 << 8) | - IT83XX_GCTRL_CHIPID2); + chip_info->product_id = + ((IT83XX_GCTRL_CHIPID1 << 8) | IT83XX_GCTRL_CHIPID2); chip_info->device_id = IT83XX_GCTRL_CHIPVER & 0xf; chip_info->fw_version_number = 0xEC; @@ -687,11 +686,13 @@ static int it8xxx2_tcpm_set_frs_enable(int port, int enable) /* W/C status */ IT83XX_USBPD_IFS(port) = 0x33; /* Enable FRS detection (cc to GND) interrupt */ - IT83XX_USBPD_MIFS(port) &= ~(USBPD_REG_MASK_FAST_SWAP_ISR | - USBPD_REG_MASK_FAST_SWAP_DETECT_ISR); + IT83XX_USBPD_MIFS(port) &= + ~(USBPD_REG_MASK_FAST_SWAP_ISR | + USBPD_REG_MASK_FAST_SWAP_DETECT_ISR); /* Enable FRS detection (cc to GND) */ - IT83XX_USBPD_PDFSCR(port) = (IT83XX_USBPD_PDFSCR(port) & ~mask) - | USBPD_REG_FAST_SWAP_DETECT_ENABLE; + IT83XX_USBPD_PDFSCR(port) = + (IT83XX_USBPD_PDFSCR(port) & ~mask) | + USBPD_REG_FAST_SWAP_DETECT_ENABLE; /* * TODO(b/160210457): Enable HW auto trigger * GPH3(port0)/GPH4(port1) output H/L after we detect FRS cc @@ -699,8 +700,9 @@ static int it8xxx2_tcpm_set_frs_enable(int port, int enable) */ } else { /* Disable FRS detection (cc to GND) interrupt */ - IT83XX_USBPD_MIFS(port) |= (USBPD_REG_MASK_FAST_SWAP_ISR | - USBPD_REG_MASK_FAST_SWAP_DETECT_ISR); + IT83XX_USBPD_MIFS(port) |= + (USBPD_REG_MASK_FAST_SWAP_ISR | + USBPD_REG_MASK_FAST_SWAP_DETECT_ISR); /* Disable FRS detection and requestion */ IT83XX_USBPD_PDFSCR(port) &= ~mask; /* @@ -724,16 +726,18 @@ static void it8xxx2_tcpm_switch_plug_out_type(int port) if ((cc1 == TYPEC_CC_VOLT_RD && cc2 == TYPEC_CC_VOLT_RD) || (cc1 == TYPEC_CC_VOLT_RA && cc2 == TYPEC_CC_VOLT_RA)) /* We're source, switch to detect audio/debug plug out. */ - IT83XX_USBPD_TCDCR(port) = (IT83XX_USBPD_TCDCR(port) & - ~USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE) | - USBPD_REG_PLUG_OUT_DETECT_TYPE_SELECT | - USBPD_REG_PLUG_OUT_SELECT; + IT83XX_USBPD_TCDCR(port) = + (IT83XX_USBPD_TCDCR(port) & + ~USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE) | + USBPD_REG_PLUG_OUT_DETECT_TYPE_SELECT | + USBPD_REG_PLUG_OUT_SELECT; else if (cc1 == TYPEC_CC_VOLT_RD || cc2 == TYPEC_CC_VOLT_RD) /* We're source, switch to detect sink plug out. */ - IT83XX_USBPD_TCDCR(port) = (IT83XX_USBPD_TCDCR(port) & - ~USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE & - ~USBPD_REG_PLUG_OUT_DETECT_TYPE_SELECT) | - USBPD_REG_PLUG_OUT_SELECT; + IT83XX_USBPD_TCDCR(port) = + (IT83XX_USBPD_TCDCR(port) & + ~USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE & + ~USBPD_REG_PLUG_OUT_DETECT_TYPE_SELECT) | + USBPD_REG_PLUG_OUT_SELECT; else if (cc1 >= TYPEC_CC_VOLT_RP_DEF || cc2 >= TYPEC_CC_VOLT_RP_DEF) /* * We're sink, disable detect interrupt, so messages on cc line @@ -756,8 +760,8 @@ void switch_plug_out_type(enum usbpd_port port) static void it8xxx2_init(enum usbpd_port port, int role) { uint8_t cc_config = (port == USBPD_PORT_C ? - IT83XX_USBPD_CC_PIN_CONFIG2 : - IT83XX_USBPD_CC_PIN_CONFIG); + IT83XX_USBPD_CC_PIN_CONFIG2 : + IT83XX_USBPD_CC_PIN_CONFIG); if (IS_ENABLED(CONFIG_IT83XX_TUNE_CC_PHY)) { /* Tune cc Tx pre-driving time */ @@ -817,7 +821,7 @@ static void it8xxx2_init(enum usbpd_port port, int role) IT83XX_USBPD_TCDCR(port) = (IT83XX_USBPD_TCDCR(port) & ~(USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE | USBPD_REG_PLUG_OUT_SELECT)) | - USBPD_REG_PLUG_IN_OUT_DETECT_STAT; + USBPD_REG_PLUG_IN_OUT_DETECT_STAT; #endif /* Set cc1/cc2 pins alternate mode */ *usbpd_ctrl_regs[port].cc1 = cc_config; @@ -825,7 +829,8 @@ static void it8xxx2_init(enum usbpd_port port, int role) task_clear_pending_irq(usbpd_ctrl_regs[port].irq); #ifdef CONFIG_ZEPHYR irq_connect_dynamic(usbpd_ctrl_regs[port].irq, 0, - (void (*)(const void *))chip_pd_irq, (void *)port, 0); + (void (*)(const void *))chip_pd_irq, (void *)port, + 0); #endif task_enable_irq(usbpd_ctrl_regs[port].irq); USBPD_START(port); @@ -951,8 +956,9 @@ static void it8xxx2_tcpm_hook_disconnect(void) * Switch to detect plug in and enable detect plug in interrupt, * since pd task has detected a type-c physical disconnected. */ - IT83XX_USBPD_TCDCR(port) &= ~(USBPD_REG_PLUG_OUT_SELECT | - USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE); + IT83XX_USBPD_TCDCR(port) &= + ~(USBPD_REG_PLUG_OUT_SELECT | + USBPD_REG_PLUG_IN_OUT_DETECT_DISABLE); /* Exit BIST test data mode */ USBPD_SW_RESET(port); @@ -976,28 +982,28 @@ DECLARE_HOOK(HOOK_USB_PD_DISCONNECT, it8xxx2_tcpm_hook_disconnect, HOOK_PRIO_DEFAULT); const struct tcpm_drv it8xxx2_tcpm_drv = { - .init = &it8xxx2_tcpm_init, - .release = &it8xxx2_tcpm_release, - .get_cc = &it8xxx2_tcpm_get_cc, - .select_rp_value = &it8xxx2_tcpm_select_rp_value, - .set_cc = &it8xxx2_tcpm_set_cc, - .set_polarity = &it8xxx2_tcpm_set_polarity, + .init = &it8xxx2_tcpm_init, + .release = &it8xxx2_tcpm_release, + .get_cc = &it8xxx2_tcpm_get_cc, + .select_rp_value = &it8xxx2_tcpm_select_rp_value, + .set_cc = &it8xxx2_tcpm_set_cc, + .set_polarity = &it8xxx2_tcpm_set_polarity, #ifdef CONFIG_USB_PD_DECODE_SOP - .sop_prime_enable = &it8xxx2_tcpm_decode_sop_prime_enable, + .sop_prime_enable = &it8xxx2_tcpm_decode_sop_prime_enable, #endif - .set_vconn = &it8xxx2_tcpm_set_vconn, - .set_msg_header = &it8xxx2_tcpm_set_msg_header, - .set_rx_enable = &it8xxx2_tcpm_set_rx_enable, - .get_message_raw = &it8xxx2_tcpm_get_message_raw, - .transmit = &it8xxx2_tcpm_transmit, + .set_vconn = &it8xxx2_tcpm_set_vconn, + .set_msg_header = &it8xxx2_tcpm_set_msg_header, + .set_rx_enable = &it8xxx2_tcpm_set_rx_enable, + .get_message_raw = &it8xxx2_tcpm_get_message_raw, + .transmit = &it8xxx2_tcpm_transmit, #ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE - .drp_toggle = NULL, + .drp_toggle = NULL, #endif - .get_chip_info = &it8xxx2_tcpm_get_chip_info, + .get_chip_info = &it8xxx2_tcpm_get_chip_info, #ifdef CONFIG_USB_PD_TCPC_LOW_POWER - .enter_low_power_mode = &it8xxx2_tcpm_enter_low_power_mode, + .enter_low_power_mode = &it8xxx2_tcpm_enter_low_power_mode, #endif #ifdef CONFIG_USB_PD_FRS_TCPC - .set_frs_enable = &it8xxx2_tcpm_set_frs_enable, + .set_frs_enable = &it8xxx2_tcpm_set_frs_enable, #endif }; |