+++ /dev/null
-/* linux/arch/arm/mach-msm/gpio.c
- *
- * Copyright (C) 2007 Google, Inc.
- * Copyright (c) 2009, Code Aurora Forum. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <mach/gpio.h>
-#include "proc_comm.h"
-
-int gpio_tlmm_config(unsigned config, unsigned disable)
-{
- return msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &config, &disable);
-}
-EXPORT_SYMBOL(gpio_tlmm_config);
-
-int msm_gpios_enable(const struct msm_gpio *table, int size)
-{
- int rc;
- int i;
- const struct msm_gpio *g;
- for (i = 0; i < size; i++) {
- g = table + i;
- rc = gpio_tlmm_config(g->gpio_cfg, GPIO_ENABLE);
- if (rc) {
- pr_err("gpio_tlmm_config(0x%08x, GPIO_ENABLE)"
- " <%s> failed: %d\n",
- g->gpio_cfg, g->label ?: "?", rc);
- pr_err("pin %d func %d dir %d pull %d drvstr %d\n",
- GPIO_PIN(g->gpio_cfg), GPIO_FUNC(g->gpio_cfg),
- GPIO_DIR(g->gpio_cfg), GPIO_PULL(g->gpio_cfg),
- GPIO_DRVSTR(g->gpio_cfg));
- goto err;
- }
- }
- return 0;
-err:
- msm_gpios_disable(table, i);
- return rc;
-}
-EXPORT_SYMBOL(msm_gpios_enable);
-
-void msm_gpios_disable(const struct msm_gpio *table, int size)
-{
- int rc;
- int i;
- const struct msm_gpio *g;
- for (i = size-1; i >= 0; i--) {
- g = table + i;
- rc = gpio_tlmm_config(g->gpio_cfg, GPIO_DISABLE);
- if (rc) {
- pr_err("gpio_tlmm_config(0x%08x, GPIO_DISABLE)"
- " <%s> failed: %d\n",
- g->gpio_cfg, g->label ?: "?", rc);
- pr_err("pin %d func %d dir %d pull %d drvstr %d\n",
- GPIO_PIN(g->gpio_cfg), GPIO_FUNC(g->gpio_cfg),
- GPIO_DIR(g->gpio_cfg), GPIO_PULL(g->gpio_cfg),
- GPIO_DRVSTR(g->gpio_cfg));
- }
- }
-}
-EXPORT_SYMBOL(msm_gpios_disable);
-
-int msm_gpios_request_enable(const struct msm_gpio *table, int size)
-{
- int rc = msm_gpios_enable(table, size);
- return rc;
-}
-EXPORT_SYMBOL(msm_gpios_request_enable);
-
-void msm_gpios_disable_free(const struct msm_gpio *table, int size)
-{
- msm_gpios_disable(table, size);
-}
-EXPORT_SYMBOL(msm_gpios_disable_free);
#define gpio_cansleep __gpio_cansleep
#define gpio_to_irq __gpio_to_irq
-/**
- * struct msm_gpio - GPIO pin description
- * @gpio_cfg - configuration bitmap, as per gpio_tlmm_config()
- * @label - textual label
- *
- * Usually, GPIO's are operated by sets.
- * This struct accumulate all GPIO information in single source
- * and facilitete group operations provided by msm_gpios_xxx()
- */
-struct msm_gpio {
- u32 gpio_cfg;
- const char *label;
-};
-
-/**
- * msm_gpios_request_enable() - request and enable set of GPIOs
- *
- * Request and configure set of GPIO's
- * In case of error, all operations rolled back.
- * Return error code.
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-int msm_gpios_request_enable(const struct msm_gpio *table, int size);
-
-/**
- * msm_gpios_disable_free() - disable and free set of GPIOs
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-void msm_gpios_disable_free(const struct msm_gpio *table, int size);
-
-/**
- * msm_gpios_request() - request set of GPIOs
- * In case of error, all operations rolled back.
- * Return error code.
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-int msm_gpios_request(const struct msm_gpio *table, int size);
-
-/**
- * msm_gpios_free() - free set of GPIOs
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-void msm_gpios_free(const struct msm_gpio *table, int size);
-
-/**
- * msm_gpios_enable() - enable set of GPIOs
- * In case of error, all operations rolled back.
- * Return error code.
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-int msm_gpios_enable(const struct msm_gpio *table, int size);
-
-/**
- * msm_gpios_disable() - disable set of GPIOs
- *
- * @table: GPIO table
- * @size: number of entries in @table
- */
-void msm_gpios_disable(const struct msm_gpio *table, int size);
-
-/* GPIO TLMM (Top Level Multiplexing) Definitions */
-
-/* GPIO TLMM: Function -- GPIO specific */
-
-/* GPIO TLMM: Direction */
-enum {
- GPIO_INPUT,
- GPIO_OUTPUT,
-};
-
-/* GPIO TLMM: Pullup/Pulldown */
-enum {
- GPIO_NO_PULL,
- GPIO_PULL_DOWN,
- GPIO_KEEPER,
- GPIO_PULL_UP,
-};
-
-/* GPIO TLMM: Drive Strength */
-enum {
- GPIO_2MA,
- GPIO_4MA,
- GPIO_6MA,
- GPIO_8MA,
- GPIO_10MA,
- GPIO_12MA,
- GPIO_14MA,
- GPIO_16MA,
-};
-
-enum {
- GPIO_ENABLE,
- GPIO_DISABLE,
-};
-
-#define GPIO_CFG(gpio, func, dir, pull, drvstr) \
- ((((gpio) & 0x3FF) << 4) | \
- ((func) & 0xf) | \
- (((dir) & 0x1) << 14) | \
- (((pull) & 0x3) << 15) | \
- (((drvstr) & 0xF) << 17))
-
-/**
- * extract GPIO pin from bit-field used for gpio_tlmm_config
- */
-#define GPIO_PIN(gpio_cfg) (((gpio_cfg) >> 4) & 0x3ff)
-#define GPIO_FUNC(gpio_cfg) (((gpio_cfg) >> 0) & 0xf)
-#define GPIO_DIR(gpio_cfg) (((gpio_cfg) >> 14) & 0x1)
-#define GPIO_PULL(gpio_cfg) (((gpio_cfg) >> 15) & 0x3)
-#define GPIO_DRVSTR(gpio_cfg) (((gpio_cfg) >> 17) & 0xf)
-
-int gpio_tlmm_config(unsigned config, unsigned disable);
-
#endif /* __ASM_ARCH_MSM_GPIO_H */
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff