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atheros: leave the gpio interrupts alone when user space changes the gpio input settings, fixes #4493

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SVN-Revision: 18036
This commit is contained in:
Felix Fietkau 2009-10-11 19:50:16 +00:00
parent d06c15c265
commit 9ae6129829
4 changed files with 42 additions and 12 deletions
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23
target/linux/atheros/patches-2.6.30/100-board.patch
View File

@ -2105,7 +2105,7 @@
+
--- /dev/null
+++ b/arch/mips/ar231x/ar2315.c
@@ -0,0 +1,643 @@
@@ -0,0 +1,658 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
@ -2163,6 +2163,10 @@
+ if (!pend)
+ ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
+
+ /* Enable interrupt with edge detection */
+ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(bit)) != AR2315_GPIO_CR_I(bit))
+ return;
+
+ if (bit >= 0)
+ do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
+}
@ -2220,14 +2224,24 @@
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ /* reconfigure GPIO line as input */
+ ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
+
+ /* Enable interrupt with edge detection */
+ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(gpio)) != AR2315_GPIO_CR_I(gpio))
+ return;
+
+ gpiointmask |= (1 << gpio);
+ ar2315_set_gpiointmask(gpio, 3);
+}
+
+static unsigned int ar2315_gpio_intr_startup(unsigned int irq)
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ /* reconfigure GPIO line as input */
+ ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
+ ar2315_gpio_intr_enable(irq);
+ return 0;
+}
+
+static void ar2315_gpio_intr_disable(unsigned int irq)
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
@ -2246,6 +2260,7 @@
+
+static struct irq_chip ar2315_gpio_intr_controller = {
+ .typename = "AR2315-GPIO",
+ .startup = ar2315_gpio_intr_startup,
+ .ack = ar2315_gpio_intr_disable,
+ .mask_ack = ar2315_gpio_intr_disable,
+ .mask = ar2315_gpio_intr_disable,

4
target/linux/atheros/patches-2.6.30/105-ar2315_pci.patch
View File

@ -256,7 +256,7 @@
+ default y
--- a/arch/mips/ar231x/ar2315.c
+++ b/arch/mips/ar231x/ar2315.c
@@ -59,6 +59,27 @@ static inline void ar2315_gpio_irq(void)
@@ -63,6 +63,27 @@ static inline void ar2315_gpio_irq(void)
do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
}
@ -284,7 +284,7 @@
/*
* Called when an interrupt is received, this function
@@ -77,6 +98,10 @@ ar2315_irq_dispatch(void)
@@ -81,6 +102,10 @@ ar2315_irq_dispatch(void)
do_IRQ(AR2315_IRQ_WLAN0_INTRS);
else if (pending & CAUSEF_IP4)
do_IRQ(AR2315_IRQ_ENET0_INTRS);

23
target/linux/atheros/patches-2.6.31/100-board.patch
View File

@ -2107,7 +2107,7 @@
+
--- /dev/null
+++ b/arch/mips/ar231x/ar2315.c
@@ -0,0 +1,643 @@
@@ -0,0 +1,658 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
@ -2165,6 +2165,10 @@
+ if (!pend)
+ ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
+
+ /* Enable interrupt with edge detection */
+ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(bit)) != AR2315_GPIO_CR_I(bit))
+ return;
+
+ if (bit >= 0)
+ do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
+}
@ -2222,14 +2226,24 @@
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ /* reconfigure GPIO line as input */
+ ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
+
+ /* Enable interrupt with edge detection */
+ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(gpio)) != AR2315_GPIO_CR_I(gpio))
+ return;
+
+ gpiointmask |= (1 << gpio);
+ ar2315_set_gpiointmask(gpio, 3);
+}
+
+static unsigned int ar2315_gpio_intr_startup(unsigned int irq)
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
+ /* reconfigure GPIO line as input */
+ ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
+ ar2315_gpio_intr_enable(irq);
+ return 0;
+}
+
+static void ar2315_gpio_intr_disable(unsigned int irq)
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
@ -2248,6 +2262,7 @@
+
+static struct irq_chip ar2315_gpio_intr_controller = {
+ .typename = "AR2315-GPIO",
+ .startup = ar2315_gpio_intr_startup,
+ .ack = ar2315_gpio_intr_disable,
+ .mask_ack = ar2315_gpio_intr_disable,
+ .mask = ar2315_gpio_intr_disable,

4
target/linux/atheros/patches-2.6.31/105-ar2315_pci.patch
View File

@ -256,7 +256,7 @@
+ default y
--- a/arch/mips/ar231x/ar2315.c
+++ b/arch/mips/ar231x/ar2315.c
@@ -59,6 +59,27 @@ static inline void ar2315_gpio_irq(void)
@@ -63,6 +63,27 @@ static inline void ar2315_gpio_irq(void)
do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
}
@ -284,7 +284,7 @@
/*
* Called when an interrupt is received, this function
@@ -77,6 +98,10 @@ ar2315_irq_dispatch(void)
@@ -81,6 +102,10 @@ ar2315_irq_dispatch(void)
do_IRQ(AR2315_IRQ_WLAN0_INTRS);
else if (pending & CAUSEF_IP4)
do_IRQ(AR2315_IRQ_ENET0_INTRS);