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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c b/ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c deleted file mode 100644 index fa6f80fa..00000000 --- a/ANDROID_3.4.5/drivers/mfd/rc5t583-irq.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * Interrupt driver for RICOH583 power management chip. - * - * Copyright (c) 2011-2012, NVIDIA CORPORATION. All rights reserved. - * Author: Laxman dewangan <ldewangan@nvidia.com> - * - * based on code - * Copyright (C) 2011 RICOH COMPANY,LTD - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>. - * - */ -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/init.h> -#include <linux/i2c.h> -#include <linux/mfd/rc5t583.h> - -enum int_type { - SYS_INT = 0x1, - DCDC_INT = 0x2, - RTC_INT = 0x4, - ADC_INT = 0x8, - GPIO_INT = 0x10, -}; - -static int gpedge_add[] = { - RC5T583_GPIO_GPEDGE2, - RC5T583_GPIO_GPEDGE2 -}; - -static int irq_en_add[] = { - RC5T583_INT_EN_SYS1, - RC5T583_INT_EN_SYS2, - RC5T583_INT_EN_DCDC, - RC5T583_INT_EN_RTC, - RC5T583_INT_EN_ADC1, - RC5T583_INT_EN_ADC2, - RC5T583_INT_EN_ADC3, - RC5T583_GPIO_EN_INT -}; - -static int irq_mon_add[] = { - RC5T583_INT_MON_SYS1, - RC5T583_INT_MON_SYS2, - RC5T583_INT_MON_DCDC, - RC5T583_INT_MON_RTC, - RC5T583_INT_IR_ADCL, - RC5T583_INT_IR_ADCH, - RC5T583_INT_IR_ADCEND, - RC5T583_INT_IR_GPIOF, - RC5T583_INT_IR_GPIOR -}; - -static int irq_clr_add[] = { - RC5T583_INT_IR_SYS1, - RC5T583_INT_IR_SYS2, - RC5T583_INT_IR_DCDC, - RC5T583_INT_IR_RTC, - RC5T583_INT_IR_ADCL, - RC5T583_INT_IR_ADCH, - RC5T583_INT_IR_ADCEND, - RC5T583_INT_IR_GPIOF, - RC5T583_INT_IR_GPIOR -}; - -static int main_int_type[] = { - SYS_INT, - SYS_INT, - DCDC_INT, - RTC_INT, - ADC_INT, - ADC_INT, - ADC_INT, - GPIO_INT, - GPIO_INT, -}; - -struct rc5t583_irq_data { - u8 int_type; - u8 master_bit; - u8 int_en_bit; - u8 mask_reg_index; - int grp_index; -}; - -#define RC5T583_IRQ(_int_type, _master_bit, _grp_index, \ - _int_bit, _mask_ind) \ - { \ - .int_type = _int_type, \ - .master_bit = _master_bit, \ - .grp_index = _grp_index, \ - .int_en_bit = _int_bit, \ - .mask_reg_index = _mask_ind, \ - } - -static const struct rc5t583_irq_data rc5t583_irqs[RC5T583_MAX_IRQS] = { - [RC5T583_IRQ_ONKEY] = RC5T583_IRQ(SYS_INT, 0, 0, 0, 0), - [RC5T583_IRQ_ACOK] = RC5T583_IRQ(SYS_INT, 0, 1, 1, 0), - [RC5T583_IRQ_LIDOPEN] = RC5T583_IRQ(SYS_INT, 0, 2, 2, 0), - [RC5T583_IRQ_PREOT] = RC5T583_IRQ(SYS_INT, 0, 3, 3, 0), - [RC5T583_IRQ_CLKSTP] = RC5T583_IRQ(SYS_INT, 0, 4, 4, 0), - [RC5T583_IRQ_ONKEY_OFF] = RC5T583_IRQ(SYS_INT, 0, 5, 5, 0), - [RC5T583_IRQ_WD] = RC5T583_IRQ(SYS_INT, 0, 7, 7, 0), - [RC5T583_IRQ_EN_PWRREQ1] = RC5T583_IRQ(SYS_INT, 0, 8, 0, 1), - [RC5T583_IRQ_EN_PWRREQ2] = RC5T583_IRQ(SYS_INT, 0, 9, 1, 1), - [RC5T583_IRQ_PRE_VINDET] = RC5T583_IRQ(SYS_INT, 0, 10, 2, 1), - - [RC5T583_IRQ_DC0LIM] = RC5T583_IRQ(DCDC_INT, 1, 0, 0, 2), - [RC5T583_IRQ_DC1LIM] = RC5T583_IRQ(DCDC_INT, 1, 1, 1, 2), - [RC5T583_IRQ_DC2LIM] = RC5T583_IRQ(DCDC_INT, 1, 2, 2, 2), - [RC5T583_IRQ_DC3LIM] = RC5T583_IRQ(DCDC_INT, 1, 3, 3, 2), - - [RC5T583_IRQ_CTC] = RC5T583_IRQ(RTC_INT, 2, 0, 0, 3), - [RC5T583_IRQ_YALE] = RC5T583_IRQ(RTC_INT, 2, 5, 5, 3), - [RC5T583_IRQ_DALE] = RC5T583_IRQ(RTC_INT, 2, 6, 6, 3), - [RC5T583_IRQ_WALE] = RC5T583_IRQ(RTC_INT, 2, 7, 7, 3), - - [RC5T583_IRQ_AIN1L] = RC5T583_IRQ(ADC_INT, 3, 0, 0, 4), - [RC5T583_IRQ_AIN2L] = RC5T583_IRQ(ADC_INT, 3, 1, 1, 4), - [RC5T583_IRQ_AIN3L] = RC5T583_IRQ(ADC_INT, 3, 2, 2, 4), - [RC5T583_IRQ_VBATL] = RC5T583_IRQ(ADC_INT, 3, 3, 3, 4), - [RC5T583_IRQ_VIN3L] = RC5T583_IRQ(ADC_INT, 3, 4, 4, 4), - [RC5T583_IRQ_VIN8L] = RC5T583_IRQ(ADC_INT, 3, 5, 5, 4), - [RC5T583_IRQ_AIN1H] = RC5T583_IRQ(ADC_INT, 3, 6, 0, 5), - [RC5T583_IRQ_AIN2H] = RC5T583_IRQ(ADC_INT, 3, 7, 1, 5), - [RC5T583_IRQ_AIN3H] = RC5T583_IRQ(ADC_INT, 3, 8, 2, 5), - [RC5T583_IRQ_VBATH] = RC5T583_IRQ(ADC_INT, 3, 9, 3, 5), - [RC5T583_IRQ_VIN3H] = RC5T583_IRQ(ADC_INT, 3, 10, 4, 5), - [RC5T583_IRQ_VIN8H] = RC5T583_IRQ(ADC_INT, 3, 11, 5, 5), - [RC5T583_IRQ_ADCEND] = RC5T583_IRQ(ADC_INT, 3, 12, 0, 6), - - [RC5T583_IRQ_GPIO0] = RC5T583_IRQ(GPIO_INT, 4, 0, 0, 7), - [RC5T583_IRQ_GPIO1] = RC5T583_IRQ(GPIO_INT, 4, 1, 1, 7), - [RC5T583_IRQ_GPIO2] = RC5T583_IRQ(GPIO_INT, 4, 2, 2, 7), - [RC5T583_IRQ_GPIO3] = RC5T583_IRQ(GPIO_INT, 4, 3, 3, 7), - [RC5T583_IRQ_GPIO4] = RC5T583_IRQ(GPIO_INT, 4, 4, 4, 7), - [RC5T583_IRQ_GPIO5] = RC5T583_IRQ(GPIO_INT, 4, 5, 5, 7), - [RC5T583_IRQ_GPIO6] = RC5T583_IRQ(GPIO_INT, 4, 6, 6, 7), - [RC5T583_IRQ_GPIO7] = RC5T583_IRQ(GPIO_INT, 4, 7, 7, 7), -}; - -static void rc5t583_irq_lock(struct irq_data *irq_data) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - mutex_lock(&rc5t583->irq_lock); -} - -static void rc5t583_irq_unmask(struct irq_data *irq_data) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - rc5t583->irq_base; - const struct rc5t583_irq_data *data = &rc5t583_irqs[__irq]; - - rc5t583->group_irq_en[data->grp_index] |= 1 << data->grp_index; - rc5t583->intc_inten_reg |= 1 << data->master_bit; - rc5t583->irq_en_reg[data->mask_reg_index] |= 1 << data->int_en_bit; -} - -static void rc5t583_irq_mask(struct irq_data *irq_data) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - rc5t583->irq_base; - const struct rc5t583_irq_data *data = &rc5t583_irqs[__irq]; - - rc5t583->group_irq_en[data->grp_index] &= ~(1 << data->grp_index); - if (!rc5t583->group_irq_en[data->grp_index]) - rc5t583->intc_inten_reg &= ~(1 << data->master_bit); - - rc5t583->irq_en_reg[data->mask_reg_index] &= ~(1 << data->int_en_bit); -} - -static int rc5t583_irq_set_type(struct irq_data *irq_data, unsigned int type) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - rc5t583->irq_base; - const struct rc5t583_irq_data *data = &rc5t583_irqs[__irq]; - int val = 0; - int gpedge_index; - int gpedge_bit_pos; - - /* Supporting only trigger level inetrrupt */ - if ((data->int_type & GPIO_INT) && (type & IRQ_TYPE_EDGE_BOTH)) { - gpedge_index = data->int_en_bit / 4; - gpedge_bit_pos = data->int_en_bit % 4; - - if (type & IRQ_TYPE_EDGE_FALLING) - val |= 0x2; - - if (type & IRQ_TYPE_EDGE_RISING) - val |= 0x1; - - rc5t583->gpedge_reg[gpedge_index] &= ~(3 << gpedge_bit_pos); - rc5t583->gpedge_reg[gpedge_index] |= (val << gpedge_bit_pos); - rc5t583_irq_unmask(irq_data); - return 0; - } - return -EINVAL; -} - -static void rc5t583_irq_sync_unlock(struct irq_data *irq_data) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - int i; - int ret; - - for (i = 0; i < ARRAY_SIZE(rc5t583->gpedge_reg); i++) { - ret = rc5t583_write(rc5t583->dev, gpedge_add[i], - rc5t583->gpedge_reg[i]); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - gpedge_add[i], ret); - } - - for (i = 0; i < ARRAY_SIZE(rc5t583->irq_en_reg); i++) { - ret = rc5t583_write(rc5t583->dev, irq_en_add[i], - rc5t583->irq_en_reg[i]); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - irq_en_add[i], ret); - } - - ret = rc5t583_write(rc5t583->dev, RC5T583_INTC_INTEN, - rc5t583->intc_inten_reg); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - RC5T583_INTC_INTEN, ret); - - mutex_unlock(&rc5t583->irq_lock); -} -#ifdef CONFIG_PM_SLEEP -static int rc5t583_irq_set_wake(struct irq_data *irq_data, unsigned int on) -{ - struct rc5t583 *rc5t583 = irq_data_get_irq_chip_data(irq_data); - return irq_set_irq_wake(rc5t583->chip_irq, on); -} -#else -#define rc5t583_irq_set_wake NULL -#endif - -static irqreturn_t rc5t583_irq(int irq, void *data) -{ - struct rc5t583 *rc5t583 = data; - uint8_t int_sts[RC5T583_MAX_INTERRUPT_MASK_REGS]; - uint8_t master_int; - int i; - int ret; - unsigned int rtc_int_sts = 0; - - /* Clear the status */ - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; i++) - int_sts[i] = 0; - - ret = rc5t583_read(rc5t583->dev, RC5T583_INTC_INTMON, &master_int); - if (ret < 0) { - dev_err(rc5t583->dev, - "Error in reading reg 0x%02x error: %d\n", - RC5T583_INTC_INTMON, ret); - return IRQ_HANDLED; - } - - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; ++i) { - if (!(master_int & main_int_type[i])) - continue; - - ret = rc5t583_read(rc5t583->dev, irq_mon_add[i], &int_sts[i]); - if (ret < 0) { - dev_warn(rc5t583->dev, - "Error in reading reg 0x%02x error: %d\n", - irq_mon_add[i], ret); - int_sts[i] = 0; - continue; - } - - if (main_int_type[i] & RTC_INT) { - rtc_int_sts = 0; - if (int_sts[i] & 0x1) - rtc_int_sts |= BIT(6); - if (int_sts[i] & 0x2) - rtc_int_sts |= BIT(7); - if (int_sts[i] & 0x4) - rtc_int_sts |= BIT(0); - if (int_sts[i] & 0x8) - rtc_int_sts |= BIT(5); - } - - ret = rc5t583_write(rc5t583->dev, irq_clr_add[i], - ~int_sts[i]); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in reading reg 0x%02x error: %d\n", - irq_clr_add[i], ret); - - if (main_int_type[i] & RTC_INT) - int_sts[i] = rtc_int_sts; - } - - /* Merge gpio interrupts for rising and falling case*/ - int_sts[7] |= int_sts[8]; - - /* Call interrupt handler if enabled */ - for (i = 0; i < RC5T583_MAX_IRQS; ++i) { - const struct rc5t583_irq_data *data = &rc5t583_irqs[i]; - if ((int_sts[data->mask_reg_index] & (1 << data->int_en_bit)) && - (rc5t583->group_irq_en[data->master_bit] & - (1 << data->grp_index))) - handle_nested_irq(rc5t583->irq_base + i); - } - - return IRQ_HANDLED; -} - -static struct irq_chip rc5t583_irq_chip = { - .name = "rc5t583-irq", - .irq_mask = rc5t583_irq_mask, - .irq_unmask = rc5t583_irq_unmask, - .irq_bus_lock = rc5t583_irq_lock, - .irq_bus_sync_unlock = rc5t583_irq_sync_unlock, - .irq_set_type = rc5t583_irq_set_type, - .irq_set_wake = rc5t583_irq_set_wake, -}; - -int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base) -{ - int i, ret; - - if (!irq_base) { - dev_warn(rc5t583->dev, "No interrupt support on IRQ base\n"); - return -EINVAL; - } - - mutex_init(&rc5t583->irq_lock); - - /* Initailize all int register to 0 */ - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; i++) { - ret = rc5t583_write(rc5t583->dev, irq_en_add[i], - rc5t583->irq_en_reg[i]); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - irq_en_add[i], ret); - } - - for (i = 0; i < RC5T583_MAX_GPEDGE_REG; i++) { - ret = rc5t583_write(rc5t583->dev, gpedge_add[i], - rc5t583->gpedge_reg[i]); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - gpedge_add[i], ret); - } - - ret = rc5t583_write(rc5t583->dev, RC5T583_INTC_INTEN, 0x0); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - RC5T583_INTC_INTEN, ret); - - /* Clear all interrupts in case they woke up active. */ - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; i++) { - ret = rc5t583_write(rc5t583->dev, irq_clr_add[i], 0); - if (ret < 0) - dev_warn(rc5t583->dev, - "Error in writing reg 0x%02x error: %d\n", - irq_clr_add[i], ret); - } - - rc5t583->irq_base = irq_base; - rc5t583->chip_irq = irq; - - for (i = 0; i < RC5T583_MAX_IRQS; i++) { - int __irq = i + rc5t583->irq_base; - irq_set_chip_data(__irq, rc5t583); - irq_set_chip_and_handler(__irq, &rc5t583_irq_chip, - handle_simple_irq); - irq_set_nested_thread(__irq, 1); -#ifdef CONFIG_ARM - set_irq_flags(__irq, IRQF_VALID); -#endif - } - - ret = request_threaded_irq(irq, NULL, rc5t583_irq, IRQF_ONESHOT, - "rc5t583", rc5t583); - if (ret < 0) - dev_err(rc5t583->dev, - "Error in registering interrupt error: %d\n", ret); - return ret; -} - -int rc5t583_irq_exit(struct rc5t583 *rc5t583) -{ - if (rc5t583->chip_irq) - free_irq(rc5t583->chip_irq, rc5t583); - return 0; -} |