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

29 #define READ32_GPIO_REG(index, offset) \
30     readl((uint32_t*)gpio->mmios[index].vaddr + (offset))
31 #define WRITE32_GPIO_REG(index, offset, value) \
32     writel(value, (uint32_t*)gpio->mmios[index].vaddr + (offset))
103 // Note: The out_pin_index returned by this API is not the index of the pin
105 // It is the index of the bit corresponding to the GPIO in consideration in a
126 static zx_status_t aml_gpio_config_in(void* ctx, uint32_t index, uint32_t flags) {
132     if ((status = aml_pin_to_block(gpio, index, &block, &pin_index)) != ZX_OK) {
133         zxlogf(ERROR, "aml_gpio_config: pin not found %u\n", index);
169 static zx_status_t aml_gpio_config_out(void* ctx, uint32_t index, uint8_t initial_value) {
175     if ((status = aml_pin_to_block(gpio, index, &block, &pin_index)) != ZX_OK) {
176         zxlogf(ERROR, "aml_gpio_config: pin not found %u\n", index);
319     uint32_t index = aml_gpio_get_unsed_irq_index(interrupt->irq_status);
320     if (index > interrupt->irq_count) {
327             zxlogf(ERROR, "GPIO Interrupt already configured for this pin %u\n", (int)index);
332     zxlogf(INFO, "GPIO Interrupt index %d allocated\n", (int)index);
348     status = pdev_get_interrupt(&gpio->pdev, index, flags_,
356     uint32_t pin_select_offset  = ((index>3)? interrupt->pin_4_7_select_offset: interrupt->pin_0_3_select_offset);
358     // Select GPIO IRQ(index) and program it to
361     regval |= (((pin % PINS_PER_BLOCK) + block->pin_start) << (index * BITS_PER_GPIO_INTERRUPT));
369         mode_reg_val = mode_reg_val | (1 << index);
370         mode_reg_val = mode_reg_val | ((1 << index) << GPIO_INTERRUPT_POLARITY_SHIFT);
373         mode_reg_val = mode_reg_val | (1 << index);
374         mode_reg_val = mode_reg_val & ~((1 << index) << GPIO_INTERRUPT_POLARITY_SHIFT);
377         mode_reg_val = mode_reg_val & ~(1 << index);
378         mode_reg_val = mode_reg_val | ((1 << index) << GPIO_INTERRUPT_POLARITY_SHIFT);
381         mode_reg_val = mode_reg_val & ~(1 << index);
382         mode_reg_val = mode_reg_val & ~((1 << index) << GPIO_INTERRUPT_POLARITY_SHIFT);
393                                regval | (0x7 << (index * BITS_PER_FILTER_SELECT)));
394     interrupt->irq_status |= 1 << index;
395     interrupt->irq_info[index] = pin;