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Diffstat (limited to 'chip/nrf51/keyboard_raw.c')
-rw-r--r--chip/nrf51/keyboard_raw.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/chip/nrf51/keyboard_raw.c b/chip/nrf51/keyboard_raw.c
deleted file mode 100644
index 779c68454c..0000000000
--- a/chip/nrf51/keyboard_raw.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/* Copyright 2014 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.
- *
- * Raw keyboard I/O layer for nRF51
- *
- * To make this code portable, we rely heavily on looping over the keyboard
- * input and output entries in the board's gpio_list[]. Each set of inputs or
- * outputs must be listed in consecutive, increasing order so that scan loops
- * can iterate beginning at KB_IN00 or KB_OUT00 for however many GPIOs are
- * utilized (KEYBOARD_ROWS or KEYBOARD_COLS_MAX).
- */
-
-#include "gpio.h"
-#include "keyboard_config.h"
-#include "keyboard_raw.h"
-#include "keyboard_scan.h"
-#include "registers.h"
-#include "task.h"
-#include "util.h"
-
-/* Mask of output pins for driving. */
-static unsigned int col_mask;
-
-void keyboard_raw_init(void)
-{
- int i;
-
- /* Initialize col_mask */
- col_mask = 0;
- for (i = 0; i < keyboard_cols; i++)
- col_mask |= gpio_list[GPIO_KB_OUT00 + i].mask;
-
- /* Ensure interrupts are disabled */
- keyboard_raw_enable_interrupt(0);
-}
-
-void keyboard_raw_task_start(void)
-{
- /*
- * Enable the interrupt for keyboard matrix inputs.
- * One is enough, since they are shared.
- */
- gpio_enable_interrupt(GPIO_KB_IN00);
-}
-
-test_mockable void keyboard_raw_drive_column(int out)
-{
- /* tri-state all first */
- NRF51_GPIO0_OUTSET = col_mask;
-
- /* drive low for specified pin(s) */
- if (out == KEYBOARD_COLUMN_ALL)
- NRF51_GPIO0_OUTCLR = col_mask;
- else if (out != KEYBOARD_COLUMN_NONE)
- NRF51_GPIO0_OUTCLR = gpio_list[GPIO_KB_OUT00 + out].mask;
-}
-
-test_mockable int keyboard_raw_read_rows(void)
-{
- int i;
- int state = 0;
-
- for (i = 0; i < KEYBOARD_ROWS; i++) {
- if (NRF51_GPIO0_IN & gpio_list[GPIO_KB_IN00 + i].mask)
- state |= 1 << i;
- }
-
- /* Invert it so 0=not pressed, 1=pressed */
- return state ^ 0xff;
-}
-
-void keyboard_raw_enable_interrupt(int enable)
-{
- if (enable) {
- /*
- * Clear the PORT event before enabling the interrupt.
- */
- NRF51_GPIOTE_PORT = 0;
- NRF51_GPIOTE_INTENSET = 1 << NRF51_GPIOTE_PORT_BIT;
- } else {
- NRF51_GPIOTE_INTENCLR = 1 << NRF51_GPIOTE_PORT_BIT;
- }
-}
-
-void keyboard_raw_gpio_interrupt(enum gpio_signal signal)
-{
- task_wake(TASK_ID_KEYSCAN);
-}