GPIO fixes for the v5.10 series:
- Tidy up a missed function call in the designware driver
when converting to gpiolib irqchip.
- Fix some bitmasks in the Aspeed driver.
- Fix some kerneldoc warnings and minor bugs in the improved
userspace API documentation.
- Revert the revert of the OMAP fix for lost edge wakeup
interrupts: the fix needs to stay in.
- Fix a compile error when deselecting the character
device.
- A bunch of IRQ fixes on the idio GPIO drivers.
- Fix an off-by-one error in the SiFive GPIO driver.
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Oj7j4GtyjuStLO/5Z6AGs7Nx4zv77JzDWIqSU++QyhNPnAH74MtT9VWsvLVoNK7e
gDX5nQbQ3+oBMaZ51ZUct/mID3tyBHFOgCx35fEywLYvjNoKOC4w8W+DqNk1LQ18
8lW6ynYZcyy6tWXJL1PdSGjICdhxp2rdFOZlDSpGH/RY1BaDNfGVTYZy4rDAJwBA
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-----END PGP SIGNATURE-----
Merge tag 'gpio-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes I've collected with the help of Bartosz.
Nothing special about them: all are driver and kbuild fixes + some
documentation fixes:
- Tidy up a missed function call in the designware driver when
converting to gpiolib irqchip
- Fix some bitmasks in the Aspeed driver
- Fix some kerneldoc warnings and minor bugs in the improved
userspace API documentation
- Revert the revert of the OMAP fix for lost edge wakeup interrupts:
the fix needs to stay in
- Fix a compile error when deselecting the character device
- A bunch of IRQ fixes on the idio GPIO drivers
- Fix an off-by-one error in the SiFive GPIO driver"
* tag 'gpio-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: sifive: Fix SiFive gpio probe
gpio: pcie-idio-24: Enable PEX8311 interrupts
gpio: pcie-idio-24: Fix IRQ Enable Register value
gpio: pcie-idio-24: Fix irq mask when masking
gpiolib: fix sysfs when cdev is not selected
Revert "Revert "gpio: omap: Fix lost edge wake-up interrupts""
gpio: uapi: clarify the meaning of 'empty' char arrays
gpio: uapi: remove whitespace
gpio: uapi: kernel-doc formatting improvements
gpio: uapi: comment consistency
gpio: uapi: fix kernel-doc warnings
gpio: aspeed: fix ast2600 bank properties
gpio: dwapb: Fix missing conversion to GPIO-lib-based IRQ-chip
This commit is contained in:
Linus Torvalds
Коммит
29eb6b7d62
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|
@ -1114,6 +1114,7 @@ static const struct aspeed_gpio_config ast2500_config =
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static const struct aspeed_bank_props ast2600_bank_props[] = {
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/* input output */
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{4, 0xffffffff, 0x00ffffff}, /* Q/R/S/T */
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{5, 0xffffffff, 0xffffff00}, /* U/V/W/X */
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{6, 0x0000ffff, 0x0000ffff}, /* Y/Z */
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{ },
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|
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@ -343,8 +343,8 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
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#ifdef CONFIG_PM_SLEEP
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static int dwapb_irq_set_wake(struct irq_data *d, unsigned int enable)
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{
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struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
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struct dwapb_gpio *gpio = igc->private;
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struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
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struct dwapb_gpio *gpio = to_dwapb_gpio(gc);
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struct dwapb_context *ctx = gpio->ports[0].ctx;
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irq_hw_number_t bit = irqd_to_hwirq(d);
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@ -1114,13 +1114,23 @@ static void omap_gpio_idle(struct gpio_bank *bank, bool may_lose_context)
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{
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struct device *dev = bank->chip.parent;
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void __iomem *base = bank->base;
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u32 nowake;
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u32 mask, nowake;
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bank->saved_datain = readl_relaxed(base + bank->regs->datain);
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if (!bank->enabled_non_wakeup_gpios)
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goto update_gpio_context_count;
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/* Check for pending EDGE_FALLING, ignore EDGE_BOTH */
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mask = bank->enabled_non_wakeup_gpios & bank->context.fallingdetect;
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mask &= ~bank->context.risingdetect;
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bank->saved_datain |= mask;
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/* Check for pending EDGE_RISING, ignore EDGE_BOTH */
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mask = bank->enabled_non_wakeup_gpios & bank->context.risingdetect;
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mask &= ~bank->context.fallingdetect;
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bank->saved_datain &= ~mask;
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if (!may_lose_context)
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goto update_gpio_context_count;
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@ -28,6 +28,47 @@
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#include <linux/spinlock.h>
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#include <linux/types.h>
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/*
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* PLX PEX8311 PCI LCS_INTCSR Interrupt Control/Status
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*
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* Bit: Description
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* 0: Enable Interrupt Sources (Bit 0)
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* 1: Enable Interrupt Sources (Bit 1)
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* 2: Generate Internal PCI Bus Internal SERR# Interrupt
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* 3: Mailbox Interrupt Enable
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* 4: Power Management Interrupt Enable
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* 5: Power Management Interrupt
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* 6: Slave Read Local Data Parity Check Error Enable
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* 7: Slave Read Local Data Parity Check Error Status
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* 8: Internal PCI Wire Interrupt Enable
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* 9: PCI Express Doorbell Interrupt Enable
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* 10: PCI Abort Interrupt Enable
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* 11: Local Interrupt Input Enable
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* 12: Retry Abort Enable
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* 13: PCI Express Doorbell Interrupt Active
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* 14: PCI Abort Interrupt Active
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* 15: Local Interrupt Input Active
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* 16: Local Interrupt Output Enable
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* 17: Local Doorbell Interrupt Enable
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* 18: DMA Channel 0 Interrupt Enable
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* 19: DMA Channel 1 Interrupt Enable
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* 20: Local Doorbell Interrupt Active
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* 21: DMA Channel 0 Interrupt Active
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* 22: DMA Channel 1 Interrupt Active
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* 23: Built-In Self-Test (BIST) Interrupt Active
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* 24: Direct Master was the Bus Master during a Master or Target Abort
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* 25: DMA Channel 0 was the Bus Master during a Master or Target Abort
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* 26: DMA Channel 1 was the Bus Master during a Master or Target Abort
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* 27: Target Abort after internal 256 consecutive Master Retrys
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* 28: PCI Bus wrote data to LCS_MBOX0
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* 29: PCI Bus wrote data to LCS_MBOX1
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* 30: PCI Bus wrote data to LCS_MBOX2
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* 31: PCI Bus wrote data to LCS_MBOX3
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*/
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#define PLX_PEX8311_PCI_LCS_INTCSR 0x68
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#define INTCSR_INTERNAL_PCI_WIRE BIT(8)
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#define INTCSR_LOCAL_INPUT BIT(11)
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/**
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* struct idio_24_gpio_reg - GPIO device registers structure
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* @out0_7: Read: FET Outputs 0-7
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@ -92,6 +133,7 @@ struct idio_24_gpio_reg {
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struct idio_24_gpio {
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struct gpio_chip chip;
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raw_spinlock_t lock;
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__u8 __iomem *plx;
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struct idio_24_gpio_reg __iomem *reg;
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unsigned long irq_mask;
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};
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@ -334,13 +376,13 @@ static void idio_24_irq_mask(struct irq_data *data)
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unsigned long flags;
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const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
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unsigned char new_irq_mask;
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const unsigned long bank_offset = bit_offset/8 * 8;
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const unsigned long bank_offset = bit_offset / 8;
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unsigned char cos_enable_state;
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raw_spin_lock_irqsave(&idio24gpio->lock, flags);
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idio24gpio->irq_mask &= BIT(bit_offset);
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new_irq_mask = idio24gpio->irq_mask >> bank_offset;
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idio24gpio->irq_mask &= ~BIT(bit_offset);
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new_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
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if (!new_irq_mask) {
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cos_enable_state = ioread8(&idio24gpio->reg->cos_enable);
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@ -363,12 +405,12 @@ static void idio_24_irq_unmask(struct irq_data *data)
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unsigned long flags;
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unsigned char prev_irq_mask;
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const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
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const unsigned long bank_offset = bit_offset/8 * 8;
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const unsigned long bank_offset = bit_offset / 8;
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unsigned char cos_enable_state;
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raw_spin_lock_irqsave(&idio24gpio->lock, flags);
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prev_irq_mask = idio24gpio->irq_mask >> bank_offset;
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prev_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
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idio24gpio->irq_mask |= BIT(bit_offset);
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if (!prev_irq_mask) {
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@ -455,6 +497,7 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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struct device *const dev = &pdev->dev;
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struct idio_24_gpio *idio24gpio;
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int err;
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const size_t pci_plx_bar_index = 1;
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const size_t pci_bar_index = 2;
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const char *const name = pci_name(pdev);
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struct gpio_irq_chip *girq;
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@ -469,12 +512,13 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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return err;
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}
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err = pcim_iomap_regions(pdev, BIT(pci_bar_index), name);
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err = pcim_iomap_regions(pdev, BIT(pci_plx_bar_index) | BIT(pci_bar_index), name);
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if (err) {
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dev_err(dev, "Unable to map PCI I/O addresses (%d)\n", err);
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return err;
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}
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idio24gpio->plx = pcim_iomap_table(pdev)[pci_plx_bar_index];
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idio24gpio->reg = pcim_iomap_table(pdev)[pci_bar_index];
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idio24gpio->chip.label = name;
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@ -504,6 +548,12 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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/* Software board reset */
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iowrite8(0, &idio24gpio->reg->soft_reset);
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/*
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* enable PLX PEX8311 internal PCI wire interrupt and local interrupt
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* input
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*/
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iowrite8((INTCSR_INTERNAL_PCI_WIRE | INTCSR_LOCAL_INPUT) >> 8,
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idio24gpio->plx + PLX_PEX8311_PCI_LCS_INTCSR + 1);
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err = devm_gpiochip_add_data(dev, &idio24gpio->chip, idio24gpio);
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if (err) {
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|
|
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@ -183,7 +183,7 @@ static int sifive_gpio_probe(struct platform_device *pdev)
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return PTR_ERR(chip->regs);
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ngpio = of_irq_count(node);
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if (ngpio >= SIFIVE_GPIO_MAX) {
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if (ngpio > SIFIVE_GPIO_MAX) {
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dev_err(dev, "Too many GPIO interrupts (max=%d)\n",
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SIFIVE_GPIO_MAX);
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return -ENXIO;
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@ -7,22 +7,7 @@
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struct gpio_device;
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#ifdef CONFIG_GPIO_CDEV
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int gpiolib_cdev_register(struct gpio_device *gdev, dev_t devt);
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void gpiolib_cdev_unregister(struct gpio_device *gdev);
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#else
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static inline int gpiolib_cdev_register(struct gpio_device *gdev, dev_t devt)
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{
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return 0;
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}
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static inline void gpiolib_cdev_unregister(struct gpio_device *gdev)
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{
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}
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#endif /* CONFIG_GPIO_CDEV */
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#endif /* GPIOLIB_CDEV_H */
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|
|
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@ -480,11 +480,23 @@ static void gpiodevice_release(struct device *dev)
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kfree(gdev);
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}
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#ifdef CONFIG_GPIO_CDEV
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#define gcdev_register(gdev, devt) gpiolib_cdev_register((gdev), (devt))
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#define gcdev_unregister(gdev) gpiolib_cdev_unregister((gdev))
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#else
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/*
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* gpiolib_cdev_register() indirectly calls device_add(), which is still
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* required even when cdev is not selected.
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*/
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#define gcdev_register(gdev, devt) device_add(&(gdev)->dev)
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#define gcdev_unregister(gdev) device_del(&(gdev)->dev)
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#endif
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static int gpiochip_setup_dev(struct gpio_device *gdev)
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{
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int ret;
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ret = gpiolib_cdev_register(gdev, gpio_devt);
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ret = gcdev_register(gdev, gpio_devt);
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if (ret)
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return ret;
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|
|
@ -500,7 +512,7 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
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return 0;
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err_remove_device:
|
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gpiolib_cdev_unregister(gdev);
|
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gcdev_unregister(gdev);
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return ret;
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}
|
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|
|
@ -825,7 +837,7 @@ void gpiochip_remove(struct gpio_chip *gc)
|
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* be removed, else it will be dangling until the last user is
|
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* gone.
|
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*/
|
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gpiolib_cdev_unregister(gdev);
|
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gcdev_unregister(gdev);
|
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put_device(&gdev->dev);
|
||||
}
|
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EXPORT_SYMBOL_GPL(gpiochip_remove);
|
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|
|
|
|||
|
|
@ -26,7 +26,7 @@
|
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* struct gpiochip_info - Information about a certain GPIO chip
|
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* @name: the Linux kernel name of this GPIO chip
|
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* @label: a functional name for this GPIO chip, such as a product
|
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* number, may be empty
|
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* number, may be empty (i.e. label[0] == '\0')
|
||||
* @lines: number of GPIO lines on this chip
|
||||
*/
|
||||
struct gpiochip_info {
|
||||
|
|
@ -98,7 +98,7 @@ struct gpio_v2_line_values {
|
|||
* identifying which field of the attribute union is in use.
|
||||
* @GPIO_V2_LINE_ATTR_ID_FLAGS: flags field is in use
|
||||
* @GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES: values field is in use
|
||||
* @GPIO_V2_LINE_ATTR_ID_DEBOUNCE: debounce_period_us is in use
|
||||
* @GPIO_V2_LINE_ATTR_ID_DEBOUNCE: debounce_period_us field is in use
|
||||
*/
|
||||
enum gpio_v2_line_attr_id {
|
||||
GPIO_V2_LINE_ATTR_ID_FLAGS = 1,
|
||||
|
|
@ -110,17 +110,17 @@ enum gpio_v2_line_attr_id {
|
|||
* struct gpio_v2_line_attribute - a configurable attribute of a line
|
||||
* @id: attribute identifier with value from &enum gpio_v2_line_attr_id
|
||||
* @padding: reserved for future use and must be zero filled
|
||||
* @flags: if id is GPIO_V2_LINE_ATTR_ID_FLAGS, the flags for the GPIO
|
||||
* line, with values from enum gpio_v2_line_flag, such as
|
||||
* GPIO_V2_LINE_FLAG_ACTIVE_LOW, GPIO_V2_LINE_FLAG_OUTPUT etc, OR:ed
|
||||
* @flags: if id is %GPIO_V2_LINE_ATTR_ID_FLAGS, the flags for the GPIO
|
||||
* line, with values from &enum gpio_v2_line_flag, such as
|
||||
* %GPIO_V2_LINE_FLAG_ACTIVE_LOW, %GPIO_V2_LINE_FLAG_OUTPUT etc, added
|
||||
* together. This overrides the default flags contained in the &struct
|
||||
* gpio_v2_line_config for the associated line.
|
||||
* @values: if id is GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES, a bitmap
|
||||
* @values: if id is %GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES, a bitmap
|
||||
* containing the values to which the lines will be set, with each bit
|
||||
* number corresponding to the index into &struct
|
||||
* gpio_v2_line_request.offsets.
|
||||
* @debounce_period_us: if id is GPIO_V2_LINE_ATTR_ID_DEBOUNCE, the desired
|
||||
* debounce period, in microseconds
|
||||
* @debounce_period_us: if id is %GPIO_V2_LINE_ATTR_ID_DEBOUNCE, the
|
||||
* desired debounce period, in microseconds
|
||||
*/
|
||||
struct gpio_v2_line_attribute {
|
||||
__u32 id;
|
||||
|
|
@ -147,12 +147,12 @@ struct gpio_v2_line_config_attribute {
|
|||
|
||||
/**
|
||||
* struct gpio_v2_line_config - Configuration for GPIO lines
|
||||
* @flags: flags for the GPIO lines, with values from enum
|
||||
* gpio_v2_line_flag, such as GPIO_V2_LINE_FLAG_ACTIVE_LOW,
|
||||
* GPIO_V2_LINE_FLAG_OUTPUT etc, OR:ed together. This is the default for
|
||||
* @flags: flags for the GPIO lines, with values from &enum
|
||||
* gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
|
||||
* %GPIO_V2_LINE_FLAG_OUTPUT etc, added together. This is the default for
|
||||
* all requested lines but may be overridden for particular lines using
|
||||
* attrs.
|
||||
* @num_attrs: the number of attributes in attrs
|
||||
* @attrs.
|
||||
* @num_attrs: the number of attributes in @attrs
|
||||
* @padding: reserved for future use and must be zero filled
|
||||
* @attrs: the configuration attributes associated with the requested
|
||||
* lines. Any attribute should only be associated with a particular line
|
||||
|
|
@ -175,17 +175,17 @@ struct gpio_v2_line_config {
|
|||
* "my-bitbanged-relay"
|
||||
* @config: requested configuration for the lines.
|
||||
* @num_lines: number of lines requested in this request, i.e. the number
|
||||
* of valid fields in the GPIO_V2_LINES_MAX sized arrays, set to 1 to
|
||||
* of valid fields in the %GPIO_V2_LINES_MAX sized arrays, set to 1 to
|
||||
* request a single line
|
||||
* @event_buffer_size: a suggested minimum number of line events that the
|
||||
* kernel should buffer. This is only relevant if edge detection is
|
||||
* enabled in the configuration. Note that this is only a suggested value
|
||||
* and the kernel may allocate a larger buffer or cap the size of the
|
||||
* buffer. If this field is zero then the buffer size defaults to a minimum
|
||||
* of num_lines*16.
|
||||
* of @num_lines * 16.
|
||||
* @padding: reserved for future use and must be zero filled
|
||||
* @fd: if successful this field will contain a valid anonymous file handle
|
||||
* after a GPIO_GET_LINE_IOCTL operation, zero or negative value means
|
||||
* after a %GPIO_GET_LINE_IOCTL operation, zero or negative value means
|
||||
* error
|
||||
*/
|
||||
struct gpio_v2_line_request {
|
||||
|
|
@ -203,15 +203,16 @@ struct gpio_v2_line_request {
|
|||
* struct gpio_v2_line_info - Information about a certain GPIO line
|
||||
* @name: the name of this GPIO line, such as the output pin of the line on
|
||||
* the chip, a rail or a pin header name on a board, as specified by the
|
||||
* GPIO chip, may be empty
|
||||
* GPIO chip, may be empty (i.e. name[0] == '\0')
|
||||
* @consumer: a functional name for the consumer of this GPIO line as set
|
||||
* by whatever is using it, will be empty if there is no current user but
|
||||
* may also be empty if the consumer doesn't set this up
|
||||
* @flags: flags for the GPIO line, such as GPIO_V2_LINE_FLAG_ACTIVE_LOW,
|
||||
* GPIO_V2_LINE_FLAG_OUTPUT etc, OR:ed together
|
||||
* @offset: the local offset on this GPIO chip, fill this in when
|
||||
* requesting the line information from the kernel
|
||||
* @num_attrs: the number of attributes in attrs
|
||||
* @num_attrs: the number of attributes in @attrs
|
||||
* @flags: flags for the GPIO lines, with values from &enum
|
||||
* gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
|
||||
* %GPIO_V2_LINE_FLAG_OUTPUT etc, added together.
|
||||
* @attrs: the configuration attributes associated with the line
|
||||
* @padding: reserved for future use
|
||||
*/
|
||||
|
|
@ -244,7 +245,7 @@ enum gpio_v2_line_changed_type {
|
|||
* of a GPIO line
|
||||
* @info: updated line information
|
||||
* @timestamp_ns: estimate of time of status change occurrence, in nanoseconds
|
||||
* @event_type: the type of change with a value from enum
|
||||
* @event_type: the type of change with a value from &enum
|
||||
* gpio_v2_line_changed_type
|
||||
* @padding: reserved for future use
|
||||
*/
|
||||
|
|
@ -269,10 +270,10 @@ enum gpio_v2_line_event_id {
|
|||
/**
|
||||
* struct gpio_v2_line_event - The actual event being pushed to userspace
|
||||
* @timestamp_ns: best estimate of time of event occurrence, in nanoseconds.
|
||||
* The timestamp_ns is read from CLOCK_MONOTONIC and is intended to allow the
|
||||
* accurate measurement of the time between events. It does not provide
|
||||
* The @timestamp_ns is read from %CLOCK_MONOTONIC and is intended to allow
|
||||
* the accurate measurement of the time between events. It does not provide
|
||||
* the wall-clock time.
|
||||
* @id: event identifier with value from enum gpio_v2_line_event_id
|
||||
* @id: event identifier with value from &enum gpio_v2_line_event_id
|
||||
* @offset: the offset of the line that triggered the event
|
||||
* @seqno: the sequence number for this event in the sequence of events for
|
||||
* all the lines in this line request
|
||||
|
|
@ -291,7 +292,7 @@ struct gpio_v2_line_event {
|
|||
};
|
||||
|
||||
/*
|
||||
* ABI v1
|
||||
* ABI v1
|
||||
*
|
||||
* This version of the ABI is deprecated.
|
||||
* Use the latest version of the ABI, defined above, instead.
|
||||
|
|
@ -314,13 +315,13 @@ struct gpio_v2_line_event {
|
|||
* @flags: various flags for this line
|
||||
* @name: the name of this GPIO line, such as the output pin of the line on the
|
||||
* chip, a rail or a pin header name on a board, as specified by the gpio
|
||||
* chip, may be empty
|
||||
* chip, may be empty (i.e. name[0] == '\0')
|
||||
* @consumer: a functional name for the consumer of this GPIO line as set by
|
||||
* whatever is using it, will be empty if there is no current user but may
|
||||
* also be empty if the consumer doesn't set this up
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_info instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_info instead.
|
||||
*/
|
||||
struct gpioline_info {
|
||||
__u32 line_offset;
|
||||
|
|
@ -344,17 +345,18 @@ enum {
|
|||
* of a GPIO line
|
||||
* @info: updated line information
|
||||
* @timestamp: estimate of time of status change occurrence, in nanoseconds
|
||||
* @event_type: one of GPIOLINE_CHANGED_REQUESTED, GPIOLINE_CHANGED_RELEASED
|
||||
* and GPIOLINE_CHANGED_CONFIG
|
||||
* @event_type: one of %GPIOLINE_CHANGED_REQUESTED,
|
||||
* %GPIOLINE_CHANGED_RELEASED and %GPIOLINE_CHANGED_CONFIG
|
||||
* @padding: reserved for future use
|
||||
*
|
||||
* Note: struct gpioline_info embedded here has 32-bit alignment on its own,
|
||||
* The &struct gpioline_info embedded here has 32-bit alignment on its own,
|
||||
* but it works fine with 64-bit alignment too. With its 72 byte size, we can
|
||||
* guarantee there are no implicit holes between it and subsequent members.
|
||||
* The 20-byte padding at the end makes sure we don't add any implicit padding
|
||||
* at the end of the structure on 64-bit architectures.
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_info_changed instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_info_changed instead.
|
||||
*/
|
||||
struct gpioline_info_changed {
|
||||
struct gpioline_info info;
|
||||
|
|
@ -378,13 +380,13 @@ struct gpioline_info_changed {
|
|||
* @lineoffsets: an array of desired lines, specified by offset index for the
|
||||
* associated GPIO device
|
||||
* @flags: desired flags for the desired GPIO lines, such as
|
||||
* GPIOHANDLE_REQUEST_OUTPUT, GPIOHANDLE_REQUEST_ACTIVE_LOW etc, OR:ed
|
||||
* %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
|
||||
* together. Note that even if multiple lines are requested, the same flags
|
||||
* must be applicable to all of them, if you want lines with individual
|
||||
* flags set, request them one by one. It is possible to select
|
||||
* a batch of input or output lines, but they must all have the same
|
||||
* characteristics, i.e. all inputs or all outputs, all active low etc
|
||||
* @default_values: if the GPIOHANDLE_REQUEST_OUTPUT is set for a requested
|
||||
* @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set for a requested
|
||||
* line, this specifies the default output value, should be 0 (low) or
|
||||
* 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
|
||||
* @consumer_label: a desired consumer label for the selected GPIO line(s)
|
||||
|
|
@ -392,11 +394,11 @@ struct gpioline_info_changed {
|
|||
* @lines: number of lines requested in this request, i.e. the number of
|
||||
* valid fields in the above arrays, set to 1 to request a single line
|
||||
* @fd: if successful this field will contain a valid anonymous file handle
|
||||
* after a GPIO_GET_LINEHANDLE_IOCTL operation, zero or negative value
|
||||
* after a %GPIO_GET_LINEHANDLE_IOCTL operation, zero or negative value
|
||||
* means error
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_request instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_request instead.
|
||||
*/
|
||||
struct gpiohandle_request {
|
||||
__u32 lineoffsets[GPIOHANDLES_MAX];
|
||||
|
|
@ -410,15 +412,15 @@ struct gpiohandle_request {
|
|||
/**
|
||||
* struct gpiohandle_config - Configuration for a GPIO handle request
|
||||
* @flags: updated flags for the requested GPIO lines, such as
|
||||
* GPIOHANDLE_REQUEST_OUTPUT, GPIOHANDLE_REQUEST_ACTIVE_LOW etc, OR:ed
|
||||
* %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
|
||||
* together
|
||||
* @default_values: if the GPIOHANDLE_REQUEST_OUTPUT is set in flags,
|
||||
* @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set in flags,
|
||||
* this specifies the default output value, should be 0 (low) or
|
||||
* 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
|
||||
* @padding: reserved for future use and should be zero filled
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_config instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_config instead.
|
||||
*/
|
||||
struct gpiohandle_config {
|
||||
__u32 flags;
|
||||
|
|
@ -432,8 +434,8 @@ struct gpiohandle_config {
|
|||
* state of a line, when setting the state of lines these should contain
|
||||
* the desired target state
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_values instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_values instead.
|
||||
*/
|
||||
struct gpiohandle_data {
|
||||
__u8 values[GPIOHANDLES_MAX];
|
||||
|
|
@ -449,17 +451,17 @@ struct gpiohandle_data {
|
|||
* @lineoffset: the desired line to subscribe to events from, specified by
|
||||
* offset index for the associated GPIO device
|
||||
* @handleflags: desired handle flags for the desired GPIO line, such as
|
||||
* GPIOHANDLE_REQUEST_ACTIVE_LOW or GPIOHANDLE_REQUEST_OPEN_DRAIN
|
||||
* %GPIOHANDLE_REQUEST_ACTIVE_LOW or %GPIOHANDLE_REQUEST_OPEN_DRAIN
|
||||
* @eventflags: desired flags for the desired GPIO event line, such as
|
||||
* GPIOEVENT_REQUEST_RISING_EDGE or GPIOEVENT_REQUEST_FALLING_EDGE
|
||||
* %GPIOEVENT_REQUEST_RISING_EDGE or %GPIOEVENT_REQUEST_FALLING_EDGE
|
||||
* @consumer_label: a desired consumer label for the selected GPIO line(s)
|
||||
* such as "my-listener"
|
||||
* @fd: if successful this field will contain a valid anonymous file handle
|
||||
* after a GPIO_GET_LINEEVENT_IOCTL operation, zero or negative value
|
||||
* after a %GPIO_GET_LINEEVENT_IOCTL operation, zero or negative value
|
||||
* means error
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_request instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_request instead.
|
||||
*/
|
||||
struct gpioevent_request {
|
||||
__u32 lineoffset;
|
||||
|
|
@ -469,7 +471,7 @@ struct gpioevent_request {
|
|||
int fd;
|
||||
};
|
||||
|
||||
/**
|
||||
/*
|
||||
* GPIO event types
|
||||
*/
|
||||
#define GPIOEVENT_EVENT_RISING_EDGE 0x01
|
||||
|
|
@ -480,8 +482,8 @@ struct gpioevent_request {
|
|||
* @timestamp: best estimate of time of event occurrence, in nanoseconds
|
||||
* @id: event identifier
|
||||
*
|
||||
* This struct is part of ABI v1 and is deprecated.
|
||||
* Use struct gpio_v2_line_event instead.
|
||||
* Note: This struct is part of ABI v1 and is deprecated.
|
||||
* Use &struct gpio_v2_line_event instead.
|
||||
*/
|
||||
struct gpioevent_data {
|
||||
__u64 timestamp;
|
||||
|
|
|
|||
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Ссылка в новой задаче