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Diffstat (limited to 'board/hatch_fp/board.c')
-rw-r--r-- | board/hatch_fp/board.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/board/hatch_fp/board.c b/board/hatch_fp/board.c deleted file mode 100644 index b48dce2b7e..0000000000 --- a/board/hatch_fp/board.c +++ /dev/null @@ -1,131 +0,0 @@ -/* Copyright 2019 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 "console.h" -#include "fpsensor_detect.h" -#include "gpio.h" -#include "hooks.h" -#include "registers.h" -#include "spi.h" -#include "system.h" -#include "task.h" -#include "usart_host_command.h" - -/** - * Disable restricted commands when the system is locked. - * - * @see console.h system.c - */ -int console_is_restricted(void) -{ - return system_is_locked(); -} - -#include "gpio_list.h" - -/* - * Some platforms have a broken SLP_S0_L signal (stuck to 0 in S0) - * if set, ignore it and only uses SLP_S3_L for the AP state. - */ -static bool broken_slp; - -static void ap_deferred(void) -{ - /* - * Behavior: - * AP Active (ex. Intel S0): SLP_L is 1 - * AP Suspend (ex. Intel S0ix): SLP_L is 0 - * The alternative SLP_ALT_L should be pulled high at all the times. - * - * Legacy Intel behavior: - * in S3: SLP_ALT_L is 0 and SLP_L is X. - * in S0ix: SLP_ALT_L is 1 and SLP_L is 0. - * in S0: SLP_ALT_L is 1 and SLP_L is 1. - * in S5/G3, the FP MCU should not be running. - */ - int running = gpio_get_level(GPIO_SLP_ALT_L) && - (gpio_get_level(GPIO_SLP_L) || broken_slp); - - if (running) { /* S0 */ - disable_sleep(SLEEP_MASK_AP_RUN); - hook_notify(HOOK_CHIPSET_RESUME); - } else { /* S0ix/S3 */ - hook_notify(HOOK_CHIPSET_SUSPEND); - enable_sleep(SLEEP_MASK_AP_RUN); - } -} -DECLARE_DEFERRED(ap_deferred); - -/* PCH power state changes */ -void slp_event(enum gpio_signal signal) -{ - hook_call_deferred(&ap_deferred_data, 0); -} - -static void board_init_transport(void) -{ - enum fp_transport_type ret_transport = get_fp_transport_type(); - - ccprints("TRANSPORT_SEL: %s", fp_transport_type_to_str(ret_transport)); - - /* Initialize transport based on bootstrap */ - switch (ret_transport) { - case FP_TRANSPORT_TYPE_UART: - /* - * The Zork variants currently have a broken SLP_S0_L signal - * (stuck to 0 in S0). For now, unconditionally ignore it here - * as they are the only UART users and the AP has no S0ix state. - * TODO(b/174695987) once the RW AP firmware has been updated - * on all those machines, remove this workaround. - */ - broken_slp = true; - - /* Check if CONFIG_USART_HOST_COMMAND is enabled. */ - if (IS_ENABLED(CONFIG_USART_HOST_COMMAND)) - usart_host_command_init(); - else - ccprints("ERROR: UART not supported in fw build."); - - /* Disable SPI interrupt to disable SPI transport layer */ - gpio_disable_interrupt(GPIO_SPI1_NSS); - break; - - case FP_TRANSPORT_TYPE_SPI: - /* SPI transport is enabled. SPI1_NSS interrupt will process - * incoming request/ - */ - break; - default: - ccprints("ERROR: Selected transport is not valid."); - } - - ccprints("TRANSPORT_SEL: %s", - fp_transport_type_to_str(get_fp_transport_type())); -} - -/* Initialize board. */ -static void board_init(void) -{ - /* Run until the first S3 entry */ - disable_sleep(SLEEP_MASK_AP_RUN); - - board_init_transport(); - - /* Enable interrupt on PCH power signals */ - gpio_enable_interrupt(GPIO_SLP_ALT_L); - gpio_enable_interrupt(GPIO_SLP_L); - - if (IS_ENABLED(SECTION_IS_RW)) - board_init_rw(); - - /* - * Enable the SPI slave interface if the PCH is up. - * Do not use hook_call_deferred(), because ap_deferred() will be - * called after tasks with priority higher than HOOK task (very late). - */ - ap_deferred(); -} -DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); |