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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14532.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c')
-rw-r--r--zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c187
1 files changed, 0 insertions, 187 deletions
diff --git a/zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c b/zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c
deleted file mode 100644
index 85b2a1a8ee..0000000000
--- a/zephyr/drivers/cros_kb_raw/cros_kb_raw_ite.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/* Copyright 2021 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.
- */
-
-#define DT_DRV_COMPAT ite_it8xxx2_cros_kb_raw
-
-#include <assert.h>
-#include <drivers/cros_kb_raw.h>
-#include <drivers/clock_control.h>
-#include <drivers/gpio.h>
-#include <kernel.h>
-#include <soc.h>
-#include <soc/ite_it8xxx2/reg_def_cros.h>
-
-#include "ec_tasks.h"
-#include "keyboard_raw.h"
-#include "task.h"
-
-#include <logging/log.h>
-LOG_MODULE_REGISTER(cros_kb_raw, LOG_LEVEL_ERR);
-
-#define KSOH_PIN_MASK (((1 << (KEYBOARD_COLS_MAX - 8)) - 1) & 0xff)
-
-/* Device config */
-struct cros_kb_raw_ite_config {
- /* keyboard scan controller base address */
- uintptr_t base;
- /* Keyboard scan input (KSI) wake-up irq */
- int irq;
-};
-
-/* Driver convenience defines */
-#define DRV_CONFIG(dev) ((const struct cros_kb_raw_ite_config *)(dev)->config)
-#define HAL_INSTANCE(dev) (struct kbs_reg *)(DRV_CONFIG(dev)->base)
-
-static int kb_raw_ite_init(const struct device *dev)
-{
- ARG_UNUSED(dev);
-
- /* Clock default is on */
- return 0;
-}
-
-/* Cros ec keyboard raw api functions */
-static int cros_kb_raw_ite_enable_interrupt(const struct device *dev,
- int enable)
-{
- const struct cros_kb_raw_ite_config *const config = DRV_CONFIG(dev);
-
- if (enable) {
- ECREG(IT8XXX2_WUC_WUESR3) = 0xFF;
- ite_intc_isr_clear(config->irq);
- irq_enable(config->irq);
- } else {
- irq_disable(config->irq);
- }
-
- return 0;
-}
-
-static int cros_kb_raw_ite_read_row(const struct device *dev)
-{
- struct kbs_reg *const inst = HAL_INSTANCE(dev);
-
- /* Bits are active-low, so invert returned levels */
- return ((inst->KBS_KSI) ^ 0xff);
-}
-
-static int cros_kb_raw_ite_drive_column(const struct device *dev, int col)
-{
- int mask;
- unsigned int key;
- struct kbs_reg *const inst = HAL_INSTANCE(dev);
-
- /* 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_PLATFORM_EC_KEYBOARD_COL2_INVERTED
- /* KSO[2] is inverted. */
- mask ^= BIT(2);
-#endif
- inst->KBS_KSOL = mask & 0xff;
- /* critical section with interrupts off */
- key = irq_lock();
- /*
- * Because IT8XXX2_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).
- */
- inst->KBS_KSOH1 = ((inst->KBS_KSOH1) & ~KSOH_PIN_MASK) |
- ((mask >> 8) & KSOH_PIN_MASK);
- /* restore interrupts */
- irq_unlock(key);
-
- return 0;
-}
-
-static void cros_kb_raw_ite_ksi_isr(const struct device *dev)
-{
- ARG_UNUSED(dev);
-
- /*
- * We clear IT8XXX2_IRQ_WKINTC irq status in
- * ite_intc_irq_handler(), after interrupt was fired.
- */
- /* W/C wakeup interrupt status for KSI[0-7] */
- ECREG(IT8XXX2_WUC_WUESR3) = 0xFF;
-
- /* Wake-up keyboard scan task */
- task_wake(TASK_ID_KEYSCAN);
-}
-
-static int cros_kb_raw_ite_init(const struct device *dev)
-{
- unsigned int key;
- const struct cros_kb_raw_ite_config *const config = DRV_CONFIG(dev);
- struct kbs_reg *const inst = HAL_INSTANCE(dev);
-
- /* Ensure top-level interrupt is disabled */
- cros_kb_raw_ite_enable_interrupt(dev, 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.
- */
- inst->KBS_KSOCTRL = (IT8XXX2_KBS_KSOPU | IT8XXX2_KBS_KSOOD);
- /* bit2, 1 enables the internal pull-up of the KSI[7:0] pins. */
- inst->KBS_KSICTRL = IT8XXX2_KBS_KSIPU;
-#ifdef CONFIG_PLATFORM_EC_KEYBOARD_COL2_INVERTED
- /* KSO[2] output high, others output low. */
- inst->KBS_KSOL = BIT(2);
- /* Enable KSO2's push-pull */
- inst->KBS_KSOLGCTRL |= IT8XXX2_KBS_KSO2GCTRL;
- inst->KBS_KSOLGOEN |= IT8XXX2_KBS_KSO2GOEN;
-#else
- /* KSO[7:0] pins output low. */
- inst->KBS_KSOL = 0x00;
-#endif
- /* critical section with interrupts off */
- key = irq_lock();
- /*
- * 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.
- */
- inst->KBS_KSOH1 &= ~KSOH_PIN_MASK;
- /* restore interrupts */
- irq_unlock(key);
- /* Select falling-edge triggered of wakeup interrupt for KSI[0-7] */
- ECREG(IT8XXX2_WUC_WUEMR3) = 0xFF;
- /* W/C wakeup interrupt status for KSI[0-7] */
- ECREG(IT8XXX2_WUC_WUESR3) = 0xFF;
- ite_intc_isr_clear(config->irq);
- /* Enable wakeup interrupt for KSI[0-7] */
- ECREG(IT8XXX2_WUC_WUENR3) = 0xFF;
-
- IRQ_CONNECT(DT_INST_IRQN(0), 0, cros_kb_raw_ite_ksi_isr, NULL, 0);
-
- return 0;
-}
-
-static const struct cros_kb_raw_driver_api cros_kb_raw_ite_driver_api = {
- .init = cros_kb_raw_ite_init,
- .drive_colum = cros_kb_raw_ite_drive_column,
- .read_rows = cros_kb_raw_ite_read_row,
- .enable_interrupt = cros_kb_raw_ite_enable_interrupt,
-};
-
-static const struct cros_kb_raw_ite_config cros_kb_raw_cfg = {
- .base = DT_INST_REG_ADDR(0),
- .irq = DT_INST_IRQN(0),
-};
-
-DEVICE_DT_INST_DEFINE(0, kb_raw_ite_init, NULL, NULL, &cros_kb_raw_cfg,
- PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
- &cros_kb_raw_ite_driver_api);