| /* Copyright (c) 2012, Code Aurora Forum. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * 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 <mach/qpnp.h> |
| |
| #define QPNP_GPIO_DIR_OUT 1 |
| #define QPNP_GPIO_DIR_IN 2 |
| #define QPNP_GPIO_DIR_BOTH (QPNP_GPIO_DIR_OUT | QPNP_GPIO_DIR_IN) |
| |
| #define QPNP_GPIO_OUT_BUF_OPEN_DRAIN 1 |
| #define QPNP_GPIO_OUT_BUF_CMOS 0 |
| |
| #define QPNP_GPIO_VIN0 0 |
| #define QPNP_GPIO_VIN1 1 |
| #define QPNP_GPIO_VIN2 2 |
| #define QPNP_GPIO_VIN3 3 |
| #define QPNP_GPIO_VIN4 4 |
| #define QPNP_GPIO_VIN5 5 |
| #define QPNP_GPIO_VIN6 6 |
| #define QPNP_GPIO_VIN7 7 |
| |
| #define QPNP_GPIO_PULL_UP_30 0 |
| #define QPNP_GPIO_PULL_UP_1P5 1 |
| #define QPNP_GPIO_PULL_UP_31P5 2 |
| #define QPNP_GPIO_PULL_UP_1P5_30 3 |
| #define QPNP_GPIO_PULL_DN 4 |
| #define QPNP_GPIO_PULL_NO 5 |
| |
| #define QPNP_GPIO_OUT_STRENGTH_LOW 1 |
| #define QPNP_GPIO_OUT_STRENGTH_MED 2 |
| #define QPNP_GPIO_OUT_STRENGTH_HIGH 3 |
| |
| #define QPNP_GPIO_FUNC_NORMAL 0 |
| #define QPNP_GPIO_FUNC_PAIRED 1 |
| #define QPNP_GPIO_FUNC_1 2 |
| #define QPNP_GPIO_FUNC_2 3 |
| #define QPNP_GPIO_DTEST1 4 |
| #define QPNP_GPIO_DTEST2 5 |
| #define QPNP_GPIO_DTEST3 6 |
| #define QPNP_GPIO_DTEST4 7 |
| |
| /** |
| * struct qpnp_gpio_cfg - structure to specify gpio configurtion values |
| * @direction: indicates whether the gpio should be input, output, or |
| * both. Should be of the type QPNP_GPIO_DIR_* |
| * @output_type: indicates gpio should be configured as CMOS or open |
| * drain. Should be of the type QPNP_GPIO_OUT_BUF_* |
| * @output_value: The gpio output value of the gpio line - 0 or 1 |
| * @pull: Indicates whether a pull up or pull down should be |
| * applied. If a pullup is required the current strength |
| * needs to be specified. Current values of 30uA, 1.5uA, |
| * 31.5uA, 1.5uA with 30uA boost are supported. This value |
| * should be one of the QPNP_GPIO_PULL_* |
| * @vin_sel: specifies the voltage level when the output is set to 1. |
| * For an input gpio specifies the voltage level at which |
| * the input is interpreted as a logical 1. |
| * @out_strength: the amount of current supplied for an output gpio, |
| * should be of the type QPNP_GPIO_STRENGTH_* |
| * @source_sel: choose alternate function for the gpio. Certain gpios |
| * can be paired (shorted) with each other. Some gpio pin |
| * can act as alternate functions. This parameter should |
| * be of type QPNP_GPIO_FUNC_* |
| * @inv_int_pol: Invert polarity before feeding the line to the interrupt |
| * module in pmic. This feature will almost be never used |
| * since the pm8xxx interrupt block can detect both edges |
| * and both levels. |
| * @master_en: 1 = Enable features within the GPIO block based on |
| * configurations. |
| * 0 = Completely disable the GPIO block and let the pin |
| * float with high impedance regardless of other settings. |
| */ |
| struct qpnp_gpio_cfg { |
| int direction; |
| int output_type; |
| int output_value; |
| int pull; |
| int vin_sel; |
| int out_strength; |
| int src_select; |
| int inv_int_pol; |
| int master_en; |
| }; |
| |
| /** |
| * qpnp_gpio_config - Apply gpio configuration for Linux gpio |
| * @gpio: Linux gpio number to configure. |
| * @param: parameters to configure. |
| * |
| * This routine takes a Linux gpio number that corresponds with a |
| * PMIC gpio and applies the configuration specified in 'param'. |
| * This gpio number can be ascertained by of_get_gpio_flags() or |
| * the qpnp_gpio_map_gpio() API. |
| */ |
| int qpnp_gpio_config(int gpio, struct qpnp_gpio_cfg *param); |
| |
| /** |
| * qpnp_gpio_map_gpio - Obtain Linux GPIO number from device spec |
| * @slave_id: slave_id of the spmi_device for the gpio in question. |
| * @pmic_gpio: PMIC gpio number to lookup. |
| * |
| * This routine is used in legacy configurations that do not support |
| * Device Tree. If you are using Device Tree, you should not use this. |
| * For such cases, use of_get_gpio() instead. |
| */ |
| int qpnp_gpio_map_gpio(uint16_t slave_id, uint32_t pmic_gpio); |