gpio/aml-axg-gpio/aml-axg-gpio.c

13 #include <ddk/protocol/gpio-impl.h>
29         readl((uint32_t*)gpio->mmios[index].vaddr + offset)
31         writel(value, (uint32_t*)gpio->mmios[index].vaddr + offset)
34         readl((uint32_t*)gpio->mmio_interrupt.vaddr + offset)
36         writel(value, (uint32_t*)gpio->mmio_interrupt.vaddr + offset)
70     gpio_impl_protocol_t gpio;
79 // MMIO indices (based on aml-gpio.c gpio_mmios)
88 static zx_status_t aml_pin_to_block(aml_gpio_t* gpio, const uint32_t pin, aml_gpio_block_t** result) {
91     for (size_t i = 0; i < gpio->block_count; i++) {
92         aml_gpio_block_t* gpio_block = &gpio->gpio_blocks[i];
104     aml_gpio_t* gpio = ctx;
108     if ((status = aml_pin_to_block(gpio, index, &block)) != ZX_OK) {
146     aml_gpio_t* gpio = ctx;
150     if ((status = aml_pin_to_block(gpio, index, &block)) != ZX_OK) {
181     aml_gpio_t* gpio = ctx;
192     if (((status = aml_pin_to_block(gpio, pin, &block)) != ZX_OK) != ZX_OK) {
222     aml_gpio_t* gpio = ctx;
226     if ((status = aml_pin_to_block(gpio, index, &block)) != ZX_OK) {
250     aml_gpio_t* gpio = ctx;
254     if ((status = aml_pin_to_block(gpio, index, &block)) != ZX_OK) {
287     aml_gpio_t* gpio = ctx;
289     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
311     if ((status = aml_pin_to_block(gpio, pin, &block)) != ZX_OK) {
324     status = pdev_get_interrupt(&gpio->pdev, index, flags_,
376     aml_gpio_t* gpio = ctx;
377     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
393     aml_gpio_t* gpio = ctx;
394     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
435     aml_gpio_t* gpio = ctx;
436     mmio_buffer_release(&gpio->mmios[MMIO_GPIO]);
437     mmio_buffer_release(&gpio->mmios[MMIO_GPIO_A0]);
438     mmio_buffer_release(&gpio->mmio_interrupt);
439     free(gpio->gpio_interrupt->irq_info);
440     free(gpio);
452     aml_gpio_t* gpio = calloc(1, sizeof(aml_gpio_t));
453     if (!gpio) {
457     if ((status = device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_DEV, &gpio->pdev)) != ZX_OK) {
468     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO, ZX_CACHE_POLICY_UNCACHED_DEVICE,
469                                    &gpio->mmios[MMIO_GPIO]);
475     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO_A0, ZX_CACHE_POLICY_UNCACHED_DEVICE,
476                                    &gpio->mmios[MMIO_GPIO_A0]);
482     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO_INTERRUPTS, ZX_CACHE_POLICY_UNCACHED_DEVICE,
483                                    &gpio->mmio_interrupt);
490     status = pdev_get_device_info(&gpio->pdev, &info);
498         gpio->gpio_blocks = a113_gpio_blocks;
499         gpio->block_count = countof(a113_gpio_blocks);
500         gpio->gpio_interrupt = &a113_interrupt_block;
503         gpio->gpio_blocks = s905d2_gpio_blocks;
504         gpio->block_count = countof(s905d2_gpio_blocks);
505         gpio->gpio_interrupt = &s905d2_interrupt_block;
515         .name = "aml-axg-gpio",
516         .ctx = gpio,
521     status = device_add(parent, &args, &gpio->zxdev);
527     gpio->gpio_interrupt->irq_count = info.irq_count;
528     gpio->gpio_interrupt->irq_status = 0;
529     gpio->gpio.ops = &gpio_ops;
530     gpio->gpio.ctx = gpio;
531     pbus_register_protocol(&pbus, ZX_PROTOCOL_GPIO_IMPL, &gpio->gpio, NULL, NULL);
532     gpio->gpio_interrupt->irq_info = calloc(gpio->gpio_interrupt->irq_count,
534     if (!gpio->gpio_interrupt->irq_info) {
542     aml_gpio_release(gpio);