diff options
Diffstat (limited to 'board/glkrvp/chg_usb_pd.c')
| -rw-r--r-- | board/glkrvp/chg_usb_pd.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/board/glkrvp/chg_usb_pd.c b/board/glkrvp/chg_usb_pd.c new file mode 100644 index 0000000000..fd972fd76b --- /dev/null +++ b/board/glkrvp/chg_usb_pd.c @@ -0,0 +1,166 @@ +/* Copyright 2017 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 "charge_manager.h" +#include "charge_state_v2.h" +#include "console.h" +#include "hooks.h" +#include "task.h" +#include "tcpci.h" +#include "system.h" +#include "util.h" + +#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) +#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) + +#define PTN5110_EXT_GPIO_CONFIG 0x92 +#define PTN5110_EXT_GPIO_CONTROL 0x93 + +#define PTN5110_EXT_GPIO_FRS_EN (1 << 6) +#define PTN5110_EXT_GPIO_EN_SRC (1 << 5) +#define PTN5110_EXT_GPIO_EN_SNK1 (1 << 4) +#define PTN5110_EXT_GPIO_IILIM_5V_VBUS_L (1 << 3) + +const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = { + {NPCX_I2C_PORT0_1, 0xA0, &tcpci_tcpm_drv, TCPC_ALERT_ACTIVE_LOW}, + {NPCX_I2C_PORT0_1, 0xA4, &tcpci_tcpm_drv, TCPC_ALERT_ACTIVE_LOW}, +}; +BUILD_ASSERT(ARRAY_SIZE(tcpc_config) == CONFIG_USB_PD_PORT_COUNT); + +static int board_charger_port_is_sourcing_vbus(int port) +{ + int reg; + + if (tcpc_read(port, PTN5110_EXT_GPIO_CONTROL, ®)) + return 0; + + return !!(reg & PTN5110_EXT_GPIO_EN_SRC); +} + +static int ptn5110_ext_gpio_enable(int port, int enable, int gpio) +{ + int reg; + int rv; + + rv = tcpc_read(port, PTN5110_EXT_GPIO_CONTROL, ®); + if (rv) + return rv; + + if (enable) + reg |= gpio; + else + reg &= ~gpio; + + return tcpc_write(port, PTN5110_EXT_GPIO_CONTROL, reg); +} + +void board_charging_enable(int port, int enable) +{ + ptn5110_ext_gpio_enable(port, enable, PTN5110_EXT_GPIO_EN_SNK1); +} + +void board_vbus_enable(int port, int enable) +{ + ptn5110_ext_gpio_enable(port, enable, PTN5110_EXT_GPIO_EN_SRC); +} + +void tcpc_alert_event(enum gpio_signal signal) +{ +#ifdef HAS_TASK_PDCMD + /* Exchange status with TCPCs */ + host_command_pd_send_status(PD_CHARGE_NO_CHANGE); +#endif +} + +void board_tcpc_init(void) +{ + /* Only reset TCPC if not sysjump */ + if (!system_jumped_to_this_image()) + board_reset_pd_mcu(); + + /* Enable TCPC0/1 interrupt */ + gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); + gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL); +} +DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 1); + +int board_tcpc_post_init(int port) +{ + int reg; + int rv; + + rv = tcpc_read(port, PTN5110_EXT_GPIO_CONFIG, ®); + if (rv) + return rv; + + /* Configure PTN5110 External GPIOs as output */ + reg |= PTN5110_EXT_GPIO_EN_SRC | PTN5110_EXT_GPIO_EN_SNK1 | + PTN5110_EXT_GPIO_IILIM_5V_VBUS_L; + rv = tcpc_write(port, PTN5110_EXT_GPIO_CONFIG, reg); + if (rv) + return rv; + + return ptn5110_ext_gpio_enable(port, 1, + PTN5110_EXT_GPIO_IILIM_5V_VBUS_L); +} + +/* Reset PD MCU */ +void board_reset_pd_mcu(void) +{ + /* TODO: Add reset logic */ +} + +int board_set_active_charge_port(int port) +{ + /* charge port is a realy physical port */ + int is_real_port = (port >= 0 && + port < CONFIG_USB_PD_PORT_COUNT); + /* check if we are source vbus on that port */ + int source = board_charger_port_is_sourcing_vbus(port); + + if (is_real_port && source) { + CPRINTS("Skip enable p%d", port); + return EC_ERROR_INVAL; + } + + CPRINTS("New chg p%d", port); + + if (port != CHARGE_PORT_NONE) { + /* Make sure non-charging port is disabled */ + board_charging_enable(port, 1); + board_charging_enable(!port, 0); + } else { + /* Disable both ports */ + board_charging_enable(0, 0); + board_charging_enable(1, 0); + } + + return EC_SUCCESS; +} + +uint16_t tcpc_get_alert_status(void) +{ + uint16_t status = 0; + + if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) + status |= PD_STATUS_TCPC_ALERT_0; + + if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL)) + status |= PD_STATUS_TCPC_ALERT_1; + + return status; +} + +void board_set_charge_limit(int port, int supplier, int charge_ma, + int max_ma, int charge_mv) +{ + charge_set_input_current_limit(MAX(charge_ma, + CONFIG_CHARGER_INPUT_CURRENT), charge_mv); +} + +int adc_read_channel(enum adc_channel ch) +{ + return 0; +} |