linux/arch/arm/mach-msm/gpiomux-v1.h

/* Copyright (c) 2010, 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */
#ifndef __ARCH_ARM_MACH_MSM_GPIOMUX_V1_H
#define __ARCH_ARM_MACH_MSM_GPIOMUX_V1_H

#if defined(CONFIG_ARCH_MSM7X30)
#define GPIOMUX_NGPIOS 182
#elif defined(CONFIG_ARCH_QSD8X50)
#define GPIOMUX_NGPIOS 165
#else
#define GPIOMUX_NGPIOS 133
#endif

typedef u32 gpiomux_config_t;

enum {
	GPIOMUX_DRV_2MA  = 0UL << 17,
	GPIOMUX_DRV_4MA  = 1UL << 17,
	GPIOMUX_DRV_6MA  = 2UL << 17,
	GPIOMUX_DRV_8MA  = 3UL << 17,
	GPIOMUX_DRV_10MA = 4UL << 17,
	GPIOMUX_DRV_12MA = 5UL << 17,
	GPIOMUX_DRV_14MA = 6UL << 17,
	GPIOMUX_DRV_16MA = 7UL << 17,
};

enum {
	GPIOMUX_FUNC_GPIO = 0UL,
	GPIOMUX_FUNC_1    = 1UL,
	GPIOMUX_FUNC_2    = 2UL,
	GPIOMUX_FUNC_3    = 3UL,
	GPIOMUX_FUNC_4    = 4UL,
	GPIOMUX_FUNC_5    = 5UL,
	GPIOMUX_FUNC_6    = 6UL,
	GPIOMUX_FUNC_7    = 7UL,
	GPIOMUX_FUNC_8    = 8UL,
	GPIOMUX_FUNC_9    = 9UL,
	GPIOMUX_FUNC_A    = 10UL,
	GPIOMUX_FUNC_B    = 11UL,
	GPIOMUX_FUNC_C    = 12UL,
	GPIOMUX_FUNC_D    = 13UL,
	GPIOMUX_FUNC_E    = 14UL,
	GPIOMUX_FUNC_F    = 15UL,
};

enum {
	GPIOMUX_PULL_NONE   = 0UL << 15,
	GPIOMUX_PULL_DOWN   = 1UL << 15,
	GPIOMUX_PULL_KEEPER = 2UL << 15,
	GPIOMUX_PULL_UP     = 3UL << 15,
};

#endif
msm: add gpiomux api for gpio multiplex & configuration. Add the 'gpiomux' api, which addresses the following shortcomings of existing tlmm api: - gpio power-collapse, which is managed by a peripheral processor on other targets, must be managed by the application processor on the 8x60. - The enable/disable flag of the legacy gpio_tlmm_config api is not applicable on the 8x60, and causes confusion. - The gpio 'direction' bits are meaningless for all func_sel configurations except for generic-gpio mode (func_sel 0), in which case the gpio_direction_* functions should be used. Having these bits in the tlmm api leads to confusion and misuse of the gpiolib api, and they have been removed in gpiomux. - The functional api of the legacy system ran contrary to the typical use-case, which is a single massive configuration at boot. Rather than forcing hundreds of 'config' function calls, the new api allows data to be configured with a single table. gpiomux_get and gpiomux_put are meant to be called automatically when gpio_request and gpio_free are called, giving automatic gpiomux/tlmm control to those drivers/lines with simple power profiles - in the simplest cases, an entry in the gpiomux table and the correct usage of gpiolib is all that is required to get proper gpio power control. Signed-off-by: Gregory Bean <gbean@codeaurora.org> Signed-off-by: Daniel Walker <dwalker@codeaurora.org> 2010-08-29 01:05:44 +08:00			`/* Copyright (c) 2010, 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.`
			`*`
			`* You should have received a copy of the GNU General Public License`
			`* along with this program; if not, write to the Free Software`
			`* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA`
			`* 02110-1301, USA.`
			`*/`
			`#ifndef __ARCH_ARM_MACH_MSM_GPIOMUX_V1_H`
			`#define __ARCH_ARM_MACH_MSM_GPIOMUX_V1_H`

			`#if defined(CONFIG_ARCH_MSM7X30)`
			`#define GPIOMUX_NGPIOS 182`
			`#elif defined(CONFIG_ARCH_QSD8X50)`
			`#define GPIOMUX_NGPIOS 165`
			`#else`
			`#define GPIOMUX_NGPIOS 133`
			`#endif`

			`typedef u32 gpiomux_config_t;`

			`enum {`
			`GPIOMUX_DRV_2MA = 0UL << 17,`
			`GPIOMUX_DRV_4MA = 1UL << 17,`
			`GPIOMUX_DRV_6MA = 2UL << 17,`
			`GPIOMUX_DRV_8MA = 3UL << 17,`
			`GPIOMUX_DRV_10MA = 4UL << 17,`
			`GPIOMUX_DRV_12MA = 5UL << 17,`
			`GPIOMUX_DRV_14MA = 6UL << 17,`
			`GPIOMUX_DRV_16MA = 7UL << 17,`
			`};`

			`enum {`
			`GPIOMUX_FUNC_GPIO = 0UL,`
			`GPIOMUX_FUNC_1 = 1UL,`
			`GPIOMUX_FUNC_2 = 2UL,`
			`GPIOMUX_FUNC_3 = 3UL,`
			`GPIOMUX_FUNC_4 = 4UL,`
			`GPIOMUX_FUNC_5 = 5UL,`
			`GPIOMUX_FUNC_6 = 6UL,`
			`GPIOMUX_FUNC_7 = 7UL,`
			`GPIOMUX_FUNC_8 = 8UL,`
			`GPIOMUX_FUNC_9 = 9UL,`
			`GPIOMUX_FUNC_A = 10UL,`
			`GPIOMUX_FUNC_B = 11UL,`
			`GPIOMUX_FUNC_C = 12UL,`
			`GPIOMUX_FUNC_D = 13UL,`
			`GPIOMUX_FUNC_E = 14UL,`
			`GPIOMUX_FUNC_F = 15UL,`
			`};`

			`enum {`
			`GPIOMUX_PULL_NONE = 0UL << 15,`
			`GPIOMUX_PULL_DOWN = 1UL << 15,`
			`GPIOMUX_PULL_KEEPER = 2UL << 15,`
			`GPIOMUX_PULL_UP = 3UL << 15,`
			`};`

			`#endif`