diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-10-11 19:50:16 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-10-11 19:50:16 +0000 |
commit | 22abd4a7382a98fb13c7dcb26e6e7c7f64903144 (patch) | |
tree | 7354cc4436fdb0c1981b2d81eb278411b91cf9d8 /target/linux/atheros | |
parent | 2438e752784e4230a5f0d9807a1dfb8e903462c5 (diff) |
atheros: leave the gpio interrupts alone when user space changes the gpio input settings, fixes #4493
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18036 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/atheros')
4 files changed, 42 insertions, 12 deletions
diff --git a/target/linux/atheros/patches-2.6.30/100-board.patch b/target/linux/atheros/patches-2.6.30/100-board.patch index 4367ce413..5f5129371 100644 --- a/target/linux/atheros/patches-2.6.30/100-board.patch +++ b/target/linux/atheros/patches-2.6.30/100-board.patch @@ -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, diff --git a/target/linux/atheros/patches-2.6.30/105-ar2315_pci.patch b/target/linux/atheros/patches-2.6.30/105-ar2315_pci.patch index f5f0956e1..9b76dfee4 100644 --- a/target/linux/atheros/patches-2.6.30/105-ar2315_pci.patch +++ b/target/linux/atheros/patches-2.6.30/105-ar2315_pci.patch @@ -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); diff --git a/target/linux/atheros/patches-2.6.31/100-board.patch b/target/linux/atheros/patches-2.6.31/100-board.patch index be6d64d63..e54a47032 100644 --- a/target/linux/atheros/patches-2.6.31/100-board.patch +++ b/target/linux/atheros/patches-2.6.31/100-board.patch @@ -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, diff --git a/target/linux/atheros/patches-2.6.31/105-ar2315_pci.patch b/target/linux/atheros/patches-2.6.31/105-ar2315_pci.patch index f5f0956e1..9b76dfee4 100644 --- a/target/linux/atheros/patches-2.6.31/105-ar2315_pci.patch +++ b/target/linux/atheros/patches-2.6.31/105-ar2315_pci.patch @@ -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); |