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author | Florian Fainelli <florian@openwrt.org> | 2007-05-20 21:29:49 +0000 |
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committer | Florian Fainelli <florian@openwrt.org> | 2007-05-20 21:29:49 +0000 |
commit | 301e5914b40ec9729041d8072f5da11559693e74 (patch) | |
tree | 8fb7ce51a33d3937f496aa3b5e667a51b27e3fcd /target/linux/adm5120-2.6/files/arch/mips | |
parent | c9733cc9da5b3fec8bb77f0a83b1e3a8d6c910fe (diff) | |
download | master-187ad058-301e5914b40ec9729041d8072f5da11559693e74.tar.gz master-187ad058-301e5914b40ec9729041d8072f5da11559693e74.tar.bz2 master-187ad058-301e5914b40ec9729041d8072f5da11559693e74.zip |
Disable PCMCIA for adm5120, request IRQ for the USB driver, fix duplicate lines in the GPIO code
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7293 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/adm5120-2.6/files/arch/mips')
-rw-r--r-- | target/linux/adm5120-2.6/files/arch/mips/adm5120/gpio.c | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/gpio.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/gpio.c index 3b317e35ae..5ae5d74940 100644 --- a/target/linux/adm5120-2.6/files/arch/mips/adm5120/gpio.c +++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/gpio.c @@ -355,360 +355,3 @@ EXPORT_SYMBOL(adm5120_gpio_request); EXPORT_SYMBOL(adm5120_gpio_free); EXPORT_SYMBOL(adm5120_gpio_to_irq); EXPORT_SYMBOL(adm5120_irq_to_gpio); -/* - * $Id$ - * - * ADM5120 GPIO support - * - * Copyright (C) 2007 OpenWrt.org - * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * 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. - * - */ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/platform_device.h> - -#include <asm/addrspace.h> -#include <asm/io.h> -#include <asm/gpio.h> - -#include <asm/mach-adm5120/adm5120_defs.h> -#include <asm/mach-adm5120/adm5120_info.h> -#include <asm/mach-adm5120/adm5120_switch.h> - -typedef void __iomem * gpio_reg_t; -#define GPIO_READ(r) readl((r)) -#define GPIO_WRITE(v,r) writel((v),(r)) -#define GPIO_REG(r) (gpio_reg_t)(KSEG1ADDR(ADM5120_SWITCH_BASE)+r) - -struct adm5120_gpio_line { - u32 flags; - const char *label; -}; - -#define GPIO_FLAG_VALID 0x01 -#define GPIO_FLAG_USED 0x02 - -struct led_desc { - gpio_reg_t reg; /* LED register address */ - u8 iv_shift; /* shift amount for input bit */ - u8 mode_shift; /* shift amount for mode bits */ -}; - -#define LED_DESC(_port,_led) { \ - .reg = GPIO_REG(SWITCH_REG_PORT0_LED+_port*4), \ - .iv_shift = LED0_IV_SHIFT+_led, \ - .mode_shift = _led*4 \ - } - -static struct led_desc led_table[15] = { - LED_DESC(0, 0), LED_DESC(0, 1), LED_DESC(0, 2), - LED_DESC(1, 0), LED_DESC(1, 1), LED_DESC(1, 2), - LED_DESC(2, 0), LED_DESC(2, 1), LED_DESC(2, 2), - LED_DESC(3, 0), LED_DESC(3, 1), LED_DESC(3, 2), - LED_DESC(4, 0), LED_DESC(4, 1), LED_DESC(4, 2) -}; - -static struct adm5120_gpio_line adm5120_gpio_map[ADM5120_GPIO_COUNT] = { - [ADM5120_GPIO_PIN0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN2] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN3] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN4] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN5] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN6] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_PIN7] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P0L0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P0L1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P0L2] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P1L0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P1L1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P1L2] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P2L0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P2L1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P2L2] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P3L0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P3L1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P3L2] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P4L0] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P4L1] = {.flags = GPIO_FLAG_VALID}, - [ADM5120_GPIO_P4L2] = {.flags = GPIO_FLAG_VALID} -}; - -#define gpio_is_invalid(g) ( \ - (g) > ADM5120_GPIO_MAX || \ - ((adm5120_gpio_map[(g)].flags & GPIO_FLAG_VALID) == 0) \ - ) - -#define gpio_is_used(g) ((adm5120_gpio_map[(g)].flags & GPIO_FLAG_USED) != 0) - -/* - * Helpers for GPIO lines in GPIO_CONF0 register - */ -#define PIN_IM(p) ((1 << GPIO_CONF0_IM_SHIFT) << p) -#define PIN_IV(p) ((1 << GPIO_CONF0_IV_SHIFT) << p) -#define PIN_OE(p) ((1 << GPIO_CONF0_OE_SHIFT) << p) -#define PIN_OV(p) ((1 << GPIO_CONF0_OV_SHIFT) << p) - -static inline int pins_direction_input(unsigned pin) -{ - gpio_reg_t *reg; - u32 t; - - reg = GPIO_REG(SWITCH_REG_GPIO_CONF0); - - t = GPIO_READ(reg); - t &= ~(PIN_OE(pin)); - t |= PIN_IM(pin); - GPIO_WRITE(t,reg); - - return 0; -} - -static inline int pins_direction_output(unsigned pin, int value) -{ - gpio_reg_t *reg; - u32 t; - - reg = GPIO_REG(SWITCH_REG_GPIO_CONF0); - - t = GPIO_READ(reg); - t &= ~(PIN_IM(pin) | PIN_OV(pin)); - t |= PIN_OE(pin); - - if (value) - t |= PIN_OV(pin); - - GPIO_WRITE(t,reg); - - return 0; -} - -static inline int pins_get_value(unsigned pin) -{ - gpio_reg_t *reg; - u32 t; - - reg = GPIO_REG(SWITCH_REG_GPIO_CONF0); - - t = GPIO_READ(reg); - if ((t & PIN_IM(pin)) != 0) - t &= PIN_IV(pin); - else - t &= PIN_OV(pin); - - return (t) ? 1 : 0; -} - -static inline void pins_set_value(unsigned pin, int value) -{ - gpio_reg_t *reg; - u32 t; - - reg = GPIO_REG(SWITCH_REG_GPIO_CONF0); - - t = GPIO_READ(reg); - if (value == 0) - t &= ~(PIN_OV(pin)); - else - t |= PIN_OV(pin); - - GPIO_WRITE(t,reg); -} - -/* - * Helpers for GPIO lines in PORTx_LED registers - */ -static inline int leds_direction_input(unsigned led) -{ - gpio_reg_t *reg; - u32 t; - - reg = led_table[led].reg; - t = GPIO_READ(reg); - t &= ~(LED_MODE_MASK << led_table[led].mode_shift); - GPIO_WRITE(t,reg); - - return 0; -} - -static inline int leds_direction_output(unsigned led, int value) -{ - gpio_reg_t *reg; - u32 t, s; - - reg = led_table[led].reg; - s = led_table[led].mode_shift; - - t = GPIO_READ(reg); - t &= ~(LED_MODE_MASK << s); - if (value) - t |= (LED_MODE_OUT_HIGH << s); - else - t |= (LED_MODE_OUT_LOW << s); - - GPIO_WRITE(t,reg); - - return 0; -} - -static inline int leds_get_value(unsigned led) -{ - gpio_reg_t *reg; - u32 t, m; - - reg = led_table[led].reg; - - t = GPIO_READ(reg); - m = (t >> led_table[led].mode_shift) & LED_MODE_MASK; - if (m == LED_MODE_INPUT) - return (t >> led_table[led].iv_shift) & 1; - - if (m == LED_MODE_OUT_LOW) - return 0; - - return 1; -} - -static inline void leds_set_value(unsigned led, int value) -{ - gpio_reg_t *reg; - u32 s,t; - - reg = led_table[led].reg; - s = led_table[led].mode_shift; - - t = GPIO_READ(reg); - t &= ~(LED_MODE_MASK << s); - if (value) - t |= (LED_MODE_OUT_HIGH << s); - else - t |= (LED_MODE_OUT_LOW << s); - - GPIO_WRITE(t,reg); -} - -/* - * Main GPIO support routines - */ -int adm5120_gpio_direction_input(unsigned gpio) -{ - if (gpio_is_invalid(gpio)) - return -EINVAL; - - if (gpio < ADM5120_GPIO_P0L0) - return pins_direction_input(gpio); - - gpio -= ADM5120_GPIO_P0L0; - return leds_direction_input(gpio); -} - -int adm5120_gpio_direction_output(unsigned gpio, int value) -{ - if (gpio_is_invalid(gpio)) - return -EINVAL; - - if (gpio < ADM5120_GPIO_P0L0) - return pins_direction_output(gpio, value); - - gpio -= ADM5120_GPIO_P0L0; - return leds_direction_output(gpio, value); -} - -int adm5120_gpio_get_value(unsigned gpio) -{ - if (gpio < ADM5120_GPIO_P0L0) - return pins_get_value(gpio); - - gpio -= ADM5120_GPIO_P0L0; - return leds_get_value(gpio); -} - -void adm5120_gpio_set_value(unsigned gpio, int value) -{ - if (gpio < ADM5120_GPIO_P0L0) { - pins_set_value(gpio, value); - return; - } - - gpio -= ADM5120_GPIO_P0L0; - leds_set_value(gpio, value); -} - -int adm5120_gpio_request(unsigned gpio, const char *label) -{ - if (gpio_is_invalid(gpio)) - return -EINVAL; - - if (gpio_is_used(gpio)) - return -EBUSY; - - adm5120_gpio_map[gpio].flags |= GPIO_FLAG_USED; - adm5120_gpio_map[gpio].label = label; - - return 0; -} - -void adm5120_gpio_free(unsigned gpio) -{ - if (gpio_is_invalid(gpio)) - return; - - adm5120_gpio_map[gpio].flags &= ~GPIO_FLAG_USED; - adm5120_gpio_map[gpio].label = NULL; -} - -int adm5120_gpio_to_irq(unsigned gpio) -{ - /* FIXME: not yet implemented */ - return -EINVAL; -} - -int adm5120_irq_to_gpio(unsigned irq) -{ - /* FIXME: not yet implemented */ - return -EINVAL; -} - -static int __init adm5120_gpio_init(void) -{ - int i; - - if (adm5120_package_pqfp()) { - /* GPIO pins 4-7 are unavailable in ADM5120P */ - for (i=ADM5120_GPIO_PIN4; i<=ADM5120_GPIO_PIN7; i++) - adm5120_gpio_map[i].flags &= ~GPIO_FLAG_VALID; - } - - return 0; -} - -subsys_initcall(adm5120_gpio_init); - -EXPORT_SYMBOL(adm5120_gpio_direction_output); -EXPORT_SYMBOL(adm5120_gpio_direction_input); -EXPORT_SYMBOL(adm5120_gpio_get_value); -EXPORT_SYMBOL(adm5120_gpio_set_value); -EXPORT_SYMBOL(adm5120_gpio_request); -EXPORT_SYMBOL(adm5120_gpio_free); -EXPORT_SYMBOL(adm5120_gpio_to_irq); -EXPORT_SYMBOL(adm5120_irq_to_gpio); |