diff options
Diffstat (limited to 'baseboard/asurada/it5205_sbu.c')
| -rw-r--r-- | baseboard/asurada/it5205_sbu.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/baseboard/asurada/it5205_sbu.c b/baseboard/asurada/it5205_sbu.c deleted file mode 100644 index 9ee59a5cc3..0000000000 --- a/baseboard/asurada/it5205_sbu.c +++ /dev/null @@ -1,68 +0,0 @@ -/* Copyright 2020 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. - * - * IT5205 Type-C SBU OVP handler - */ - -#include "console.h" -#include "hooks.h" -#include "it5205.h" -#include "stdbool.h" -#include "timer.h" -#include "usb_mux.h" - -#define CPRINTS(format, args...) cprints(CC_USB, format, ## args) -#define CPRINTF(format, args...) cprintf(CC_USB, format, ## args) - -#define OVP_RETRY_DELAY_US_MIN (100 * MSEC) - -static unsigned int ovp_retry_delay_us = OVP_RETRY_DELAY_US_MIN; - -static void reset_retry_delay(void) -{ - CPRINTS("IT5205 SBU OVP cleared"); - ovp_retry_delay_us = OVP_RETRY_DELAY_US_MIN; -} -DECLARE_DEFERRED(reset_retry_delay); - -static void reset_csbu(void) -{ - /* double the retry time up to 1 minute */ - ovp_retry_delay_us = MIN(ovp_retry_delay_us * 2, MINUTE); - /* and reset it if interrupt not triggered in a short period */ - hook_call_deferred(&reset_retry_delay_data, 500 * MSEC); - - /* re-enable sbu interrupt */ - it5205h_enable_csbu_switch(&usb_muxes[0], false); - it5205h_enable_csbu_switch(&usb_muxes[0], true); -} -DECLARE_DEFERRED(reset_csbu); - -static void it5205h_hook_ac_change(void) -{ - int reg; - - /* Check if the board has IT5205H, and read its ovp status */ - if (i2c_read8(I2C_PORT_USB_MUX0, IT5205H_SBU_I2C_ADDR_FLAGS, - IT5205H_REG_ISR, ®)) - return; - - /* - * Re-poll ovp status immediately if AC detached, because ovp will - * likely be recovered. - * - * Always perform the re-poll even when this hook is triggered by - * unrelated events. - */ - if (reg & IT5205H_ISR_CSBU_OVP) - hook_call_deferred(&reset_csbu_data, 0); -} -DECLARE_HOOK(HOOK_AC_CHANGE, it5205h_hook_ac_change, HOOK_PRIO_DEFAULT); - -void it5205h_sbu_interrupt(enum gpio_signal signal) -{ - CPRINTS("IT5205 SBU OVP triggered"); - hook_call_deferred(&reset_csbu_data, ovp_retry_delay_us); - hook_call_deferred(&reset_retry_delay_data, -1); -} |