gpio/aml-gxl-gpio/aml-gxl-gpio.c

13 #include <ddk/protocol/gpio-impl.h>
30     readl((uint32_t*)gpio->mmios[index].vaddr + (offset))
32     writel(value, (uint32_t*)gpio->mmios[index].vaddr + (offset))
35     readl((uint32_t*)gpio->mmio_interrupt.vaddr + (offset))
37     writel(value, (uint32_t*)gpio->mmio_interrupt.vaddr + (offset))
80     gpio_impl_protocol_t gpio;
91 // MMIO indices (based on vim-gpio.c gpio_mmios)
107 static zx_status_t aml_pin_to_block(aml_gpio_t* gpio, const uint32_t pin,
112     if (block_index >= gpio->block_count) {
115     aml_gpio_block_t* block = &gpio->gpio_blocks[block_index];
127     aml_gpio_t* gpio = ctx;
132     if ((status = aml_pin_to_block(gpio, index, &block, &pin_index)) != ZX_OK) {
170     aml_gpio_t* gpio = ctx;
175     if ((status = aml_pin_to_block(gpio, index, &block, &pin_index)) != ZX_OK) {
203     aml_gpio_t* gpio = ctx;
210     if (block_index >= gpio->block_count) {
213     const aml_pinmux_block_t* block = &gpio->pinmux_blocks[block_index];
217     aml_gpio_block_t* gpio_block = &gpio->gpio_blocks[block_index];
218     mtx_lock(&gpio->pinmux_lock);
236     mtx_unlock(&gpio->pinmux_lock);
242     aml_gpio_t* gpio = ctx;
247     if ((status = aml_pin_to_block(gpio, pin, &block, &pin_index)) != ZX_OK) {
269     aml_gpio_t* gpio = ctx;
274     if ((status = aml_pin_to_block(gpio, pin, &block, &pin_index)) != ZX_OK) {
310     aml_gpio_t* gpio = ctx;
312     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
335     if ((status = aml_pin_to_block(gpio, pin, &block, &pin_index)) != ZX_OK) {
348     status = pdev_get_interrupt(&gpio->pdev, index, flags_,
402     aml_gpio_t* gpio = ctx;
403     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
419     aml_gpio_t* gpio = ctx;
420     aml_gpio_interrupt_t* interrupt = gpio->gpio_interrupt;
461     aml_gpio_t* gpio = ctx;
462     mmio_buffer_release(&gpio->mmios[MMIO_GPIO]);
463     mmio_buffer_release(&gpio->mmios[MMIO_GPIO_A0]);
464     mmio_buffer_release(&gpio->mmio_interrupt);
465     free(gpio->gpio_interrupt->irq_info);
466     free(gpio);
478     aml_gpio_t* gpio = calloc(1, sizeof(aml_gpio_t));
479     if (!gpio) {
482     mtx_init(&gpio->pinmux_lock, mtx_plain);
484     if ((status = device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_DEV, &gpio->pdev)) != ZX_OK) {
495     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO, ZX_CACHE_POLICY_UNCACHED_DEVICE,
496                                    &gpio->mmios[MMIO_GPIO]);
502     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO_A0, ZX_CACHE_POLICY_UNCACHED_DEVICE,
503                                    &gpio->mmios[MMIO_GPIO_A0]);
509     status = pdev_map_mmio_buffer2(&gpio->pdev, MMIO_GPIO_INTERRUPTS, ZX_CACHE_POLICY_UNCACHED_DEVICE,
510                                    &gpio->mmio_interrupt);
517     status = pdev_get_device_info(&gpio->pdev, &info);
525         gpio->gpio_blocks = s912_gpio_blocks;
526         gpio->pinmux_blocks = s912_pinmux_blocks;
527         gpio->gpio_interrupt = &s912_interrupt_block;
528         gpio->block_count = countof(s912_gpio_blocks);
531         gpio->gpio_blocks = s905x_gpio_blocks;
532         gpio->pinmux_blocks = s905x_pinmux_blocks;
533         gpio->gpio_interrupt = &s905x_interrupt_block;
534         gpio->block_count = countof(s905x_gpio_blocks);
537         gpio->gpio_blocks = s905_gpio_blocks;
538         gpio->pinmux_blocks = s905_pinmux_blocks;
539         gpio->gpio_interrupt = &s905_interrupt_block;
540         gpio->block_count = countof(s905_gpio_blocks);
550         .name = "aml-gxl-gpio",
551         .ctx = gpio,
556     status = device_add(parent, &args, &gpio->zxdev);
562     gpio->gpio_interrupt->irq_count = info.irq_count;
563     gpio->gpio_interrupt->irq_status = 0;
564     gpio->gpio.ops = &gpio_ops;
565     gpio->gpio.ctx = gpio;
566     gpio->gpio_interrupt->irq_info = calloc(gpio->gpio_interrupt->irq_count,
568     if (!gpio->gpio_interrupt->irq_info) {
573     pbus_register_protocol(&pbus, ZX_PROTOCOL_GPIO_IMPL, &gpio->gpio, NULL, NULL);
578     aml_gpio_release(gpio);