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Diffstat (limited to 'chip/it83xx/keyboard_raw.c')
-rw-r--r--chip/it83xx/keyboard_raw.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/chip/it83xx/keyboard_raw.c b/chip/it83xx/keyboard_raw.c
deleted file mode 100644
index 6c7a10c463..0000000000
--- a/chip/it83xx/keyboard_raw.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/* 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 "keyboard_raw.h"
-#include "keyboard_scan.h"
-#include "registers.h"
-#include "task.h"
-#include "irq_chip.h"
-
-#define KSOH_PIN_MASK (((1 << (KEYBOARD_COLS_MAX - 8)) - 1) & 0xff)
-
-/*
- * Initialize the raw keyboard interface.
- */
-void keyboard_raw_init(void)
-{
- uint32_t int_mask;
-
- /* Ensure top-level interrupt is disabled */
- keyboard_raw_enable_interrupt(0);
-
- /*
- * bit2, Setting 1 enables the internal pull-up of the KSO[15:0] pins.
- * To pull up KSO[17:16], set the GPCR registers of their
- * corresponding GPIO ports.
- * bit0, Setting 1 enables the open-drain mode of the KSO[17:0] pins.
- */
- IT83XX_KBS_KSOCTRL = 0x05;
-
- /* bit2, 1 enables the internal pull-up of the KSI[7:0] pins. */
- IT83XX_KBS_KSICTRL = 0x04;
-
-#ifdef CONFIG_KEYBOARD_COL2_INVERTED
- /* KSO[2] is high, others are low. */
- IT83XX_KBS_KSOL = BIT(2);
- /* Enable KSO2's push-pull */
- IT83XX_KBS_KSOLGCTRL |= BIT(2);
- IT83XX_KBS_KSOLGOEN |= BIT(2);
-#else
- /* KSO[7:0] pins low. */
- IT83XX_KBS_KSOL = 0x00;
-#endif
-
- /* critical section with interrupts off */
- int_mask = read_clear_int_mask();
- /*
- * KSO[COLS_MAX:8] pins low.
- * NOTE: KSO[15:8] pins can part be enabled for keyboard function and
- * rest be configured as GPIO output mode. In this case that we
- * disable the ISR in critical section to avoid race condition.
- */
- IT83XX_KBS_KSOH1 &= ~KSOH_PIN_MASK;
- /* restore interrupts */
- set_int_mask(int_mask);
-
- /* KSI[0-7] falling-edge triggered is selected */
- IT83XX_WUC_WUEMR3 = 0xFF;
-
- /* W/C */
- IT83XX_WUC_WUESR3 = 0xFF;
-
- task_clear_pending_irq(IT83XX_IRQ_WKINTC);
-
- /* Enable WUC for KSI[0-7] */
- IT83XX_WUC_WUENR3 = 0xFF;
-}
-
-/*
- * Finish initialization after task scheduling has started.
- */
-void keyboard_raw_task_start(void)
-{
- IT83XX_WUC_WUESR3 = 0xFF;
- task_clear_pending_irq(IT83XX_IRQ_WKINTC);
- task_enable_irq(IT83XX_IRQ_WKINTC);
-}
-
-/*
- * Drive the specified column low.
- */
-test_mockable void keyboard_raw_drive_column(int col)
-{
- int mask;
- uint32_t int_mask;
-
- /* Tri-state all outputs */
- if (col == KEYBOARD_COLUMN_NONE)
- mask = 0xffff;
- /* Assert all outputs */
- else if (col == KEYBOARD_COLUMN_ALL)
- mask = 0;
- /* Assert a single output */
- else
- mask = 0xffff ^ BIT(col);
-
-#ifdef CONFIG_KEYBOARD_COL2_INVERTED
- /* KSO[2] is inverted. */
- mask ^= BIT(2);
-#endif
- IT83XX_KBS_KSOL = mask & 0xff;
-
- /* critical section with interrupts off */
- int_mask = read_clear_int_mask();
- /*
- * Because IT83XX_KBS_KSOH1 register is shared by keyboard scan
- * out and GPIO output mode, so we don't drive all KSOH pins
- * here (this depends on how many keyboard matrix output pin
- * we are using).
- */
- IT83XX_KBS_KSOH1 = (IT83XX_KBS_KSOH1 & ~KSOH_PIN_MASK) |
- ((mask >> 8) & KSOH_PIN_MASK);
- /* restore interrupts */
- set_int_mask(int_mask);
-}
-
-/*
- * Read raw row state.
- * Bits are 1 if signal is present, 0 if not present.
- */
-test_mockable int keyboard_raw_read_rows(void)
-{
- /* Bits are active-low, so invert returned levels */
- return IT83XX_KBS_KSI ^ 0xff;
-}
-
-/*
- * Enable or disable keyboard matrix scan interrupts.
- */
-void keyboard_raw_enable_interrupt(int enable)
-{
- if (enable) {
- IT83XX_WUC_WUESR3 = 0xFF;
- task_clear_pending_irq(IT83XX_IRQ_WKINTC);
- task_enable_irq(IT83XX_IRQ_WKINTC);
- } else {
- task_disable_irq(IT83XX_IRQ_WKINTC);
- }
-}
-
-/*
- * Interrupt handler for keyboard matrix scan interrupt.
- */
-void keyboard_raw_interrupt(void)
-{
- IT83XX_WUC_WUESR3 = 0xFF;
- task_clear_pending_irq(IT83XX_IRQ_WKINTC);
-
- /* Wake the scan task */
- task_wake(TASK_ID_KEYSCAN);
-}
-
-int keyboard_raw_is_input_low(int port, int id)
-{
- return !(IT83XX_GPIO_DATA_MIRROR(port) & BIT(id));
-}