| /* |
| * ASPEED GPIO Controller |
| * |
| * Copyright (C) 2017-2019 IBM Corp. |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/host-utils.h" |
| #include "qemu/log.h" |
| #include "hw/gpio/aspeed_gpio.h" |
| #include "hw/misc/aspeed_scu.h" |
| #include "qapi/error.h" |
| #include "qapi/visitor.h" |
| #include "hw/irq.h" |
| #include "migration/vmstate.h" |
| #include "trace.h" |
| #include "hw/registerfields.h" |
| |
| #define GPIOS_PER_GROUP 8 |
| |
| /* GPIO Source Types */ |
| #define ASPEED_CMD_SRC_MASK 0x01010101 |
| #define ASPEED_SOURCE_ARM 0 |
| #define ASPEED_SOURCE_LPC 1 |
| #define ASPEED_SOURCE_COPROCESSOR 2 |
| #define ASPEED_SOURCE_RESERVED 3 |
| |
| /* GPIO Interrupt Triggers */ |
| /* |
| * For each set of gpios there are three sensitivity registers that control |
| * the interrupt trigger mode. |
| * |
| * | 2 | 1 | 0 | trigger mode |
| * ----------------------------- |
| * | 0 | 0 | 0 | falling-edge |
| * | 0 | 0 | 1 | rising-edge |
| * | 0 | 1 | 0 | level-low |
| * | 0 | 1 | 1 | level-high |
| * | 1 | X | X | dual-edge |
| */ |
| #define ASPEED_FALLING_EDGE 0 |
| #define ASPEED_RISING_EDGE 1 |
| #define ASPEED_LEVEL_LOW 2 |
| #define ASPEED_LEVEL_HIGH 3 |
| #define ASPEED_DUAL_EDGE 4 |
| |
| /* GPIO Register Address Offsets */ |
| #define GPIO_ABCD_DATA_VALUE (0x000 >> 2) |
| #define GPIO_ABCD_DIRECTION (0x004 >> 2) |
| #define GPIO_ABCD_INT_ENABLE (0x008 >> 2) |
| #define GPIO_ABCD_INT_SENS_0 (0x00C >> 2) |
| #define GPIO_ABCD_INT_SENS_1 (0x010 >> 2) |
| #define GPIO_ABCD_INT_SENS_2 (0x014 >> 2) |
| #define GPIO_ABCD_INT_STATUS (0x018 >> 2) |
| #define GPIO_ABCD_RESET_TOLERANT (0x01C >> 2) |
| #define GPIO_EFGH_DATA_VALUE (0x020 >> 2) |
| #define GPIO_EFGH_DIRECTION (0x024 >> 2) |
| #define GPIO_EFGH_INT_ENABLE (0x028 >> 2) |
| #define GPIO_EFGH_INT_SENS_0 (0x02C >> 2) |
| #define GPIO_EFGH_INT_SENS_1 (0x030 >> 2) |
| #define GPIO_EFGH_INT_SENS_2 (0x034 >> 2) |
| #define GPIO_EFGH_INT_STATUS (0x038 >> 2) |
| #define GPIO_EFGH_RESET_TOLERANT (0x03C >> 2) |
| #define GPIO_ABCD_DEBOUNCE_1 (0x040 >> 2) |
| #define GPIO_ABCD_DEBOUNCE_2 (0x044 >> 2) |
| #define GPIO_EFGH_DEBOUNCE_1 (0x048 >> 2) |
| #define GPIO_EFGH_DEBOUNCE_2 (0x04C >> 2) |
| #define GPIO_DEBOUNCE_TIME_1 (0x050 >> 2) |
| #define GPIO_DEBOUNCE_TIME_2 (0x054 >> 2) |
| #define GPIO_DEBOUNCE_TIME_3 (0x058 >> 2) |
| #define GPIO_ABCD_COMMAND_SRC_0 (0x060 >> 2) |
| #define GPIO_ABCD_COMMAND_SRC_1 (0x064 >> 2) |
| #define GPIO_EFGH_COMMAND_SRC_0 (0x068 >> 2) |
| #define GPIO_EFGH_COMMAND_SRC_1 (0x06C >> 2) |
| #define GPIO_IJKL_DATA_VALUE (0x070 >> 2) |
| #define GPIO_IJKL_DIRECTION (0x074 >> 2) |
| #define GPIO_MNOP_DATA_VALUE (0x078 >> 2) |
| #define GPIO_MNOP_DIRECTION (0x07C >> 2) |
| #define GPIO_QRST_DATA_VALUE (0x080 >> 2) |
| #define GPIO_QRST_DIRECTION (0x084 >> 2) |
| #define GPIO_UVWX_DATA_VALUE (0x088 >> 2) |
| #define GPIO_UVWX_DIRECTION (0x08C >> 2) |
| #define GPIO_IJKL_COMMAND_SRC_0 (0x090 >> 2) |
| #define GPIO_IJKL_COMMAND_SRC_1 (0x094 >> 2) |
| #define GPIO_IJKL_INT_ENABLE (0x098 >> 2) |
| #define GPIO_IJKL_INT_SENS_0 (0x09C >> 2) |
| #define GPIO_IJKL_INT_SENS_1 (0x0A0 >> 2) |
| #define GPIO_IJKL_INT_SENS_2 (0x0A4 >> 2) |
| #define GPIO_IJKL_INT_STATUS (0x0A8 >> 2) |
| #define GPIO_IJKL_RESET_TOLERANT (0x0AC >> 2) |
| #define GPIO_IJKL_DEBOUNCE_1 (0x0B0 >> 2) |
| #define GPIO_IJKL_DEBOUNCE_2 (0x0B4 >> 2) |
| #define GPIO_IJKL_INPUT_MASK (0x0B8 >> 2) |
| #define GPIO_ABCD_DATA_READ (0x0C0 >> 2) |
| #define GPIO_EFGH_DATA_READ (0x0C4 >> 2) |
| #define GPIO_IJKL_DATA_READ (0x0C8 >> 2) |
| #define GPIO_MNOP_DATA_READ (0x0CC >> 2) |
| #define GPIO_QRST_DATA_READ (0x0D0 >> 2) |
| #define GPIO_UVWX_DATA_READ (0x0D4 >> 2) |
| #define GPIO_YZAAAB_DATA_READ (0x0D8 >> 2) |
| #define GPIO_AC_DATA_READ (0x0DC >> 2) |
| #define GPIO_MNOP_COMMAND_SRC_0 (0x0E0 >> 2) |
| #define GPIO_MNOP_COMMAND_SRC_1 (0x0E4 >> 2) |
| #define GPIO_MNOP_INT_ENABLE (0x0E8 >> 2) |
| #define GPIO_MNOP_INT_SENS_0 (0x0EC >> 2) |
| #define GPIO_MNOP_INT_SENS_1 (0x0F0 >> 2) |
| #define GPIO_MNOP_INT_SENS_2 (0x0F4 >> 2) |
| #define GPIO_MNOP_INT_STATUS (0x0F8 >> 2) |
| #define GPIO_MNOP_RESET_TOLERANT (0x0FC >> 2) |
| #define GPIO_MNOP_DEBOUNCE_1 (0x100 >> 2) |
| #define GPIO_MNOP_DEBOUNCE_2 (0x104 >> 2) |
| #define GPIO_MNOP_INPUT_MASK (0x108 >> 2) |
| #define GPIO_QRST_COMMAND_SRC_0 (0x110 >> 2) |
| #define GPIO_QRST_COMMAND_SRC_1 (0x114 >> 2) |
| #define GPIO_QRST_INT_ENABLE (0x118 >> 2) |
| #define GPIO_QRST_INT_SENS_0 (0x11C >> 2) |
| #define GPIO_QRST_INT_SENS_1 (0x120 >> 2) |
| #define GPIO_QRST_INT_SENS_2 (0x124 >> 2) |
| #define GPIO_QRST_INT_STATUS (0x128 >> 2) |
| #define GPIO_QRST_RESET_TOLERANT (0x12C >> 2) |
| #define GPIO_QRST_DEBOUNCE_1 (0x130 >> 2) |
| #define GPIO_QRST_DEBOUNCE_2 (0x134 >> 2) |
| #define GPIO_QRST_INPUT_MASK (0x138 >> 2) |
| #define GPIO_UVWX_COMMAND_SRC_0 (0x140 >> 2) |
| #define GPIO_UVWX_COMMAND_SRC_1 (0x144 >> 2) |
| #define GPIO_UVWX_INT_ENABLE (0x148 >> 2) |
| #define GPIO_UVWX_INT_SENS_0 (0x14C >> 2) |
| #define GPIO_UVWX_INT_SENS_1 (0x150 >> 2) |
| #define GPIO_UVWX_INT_SENS_2 (0x154 >> 2) |
| #define GPIO_UVWX_INT_STATUS (0x158 >> 2) |
| #define GPIO_UVWX_RESET_TOLERANT (0x15C >> 2) |
| #define GPIO_UVWX_DEBOUNCE_1 (0x160 >> 2) |
| #define GPIO_UVWX_DEBOUNCE_2 (0x164 >> 2) |
| #define GPIO_UVWX_INPUT_MASK (0x168 >> 2) |
| #define GPIO_YZAAAB_COMMAND_SRC_0 (0x170 >> 2) |
| #define GPIO_YZAAAB_COMMAND_SRC_1 (0x174 >> 2) |
| #define GPIO_YZAAAB_INT_ENABLE (0x178 >> 2) |
| #define GPIO_YZAAAB_INT_SENS_0 (0x17C >> 2) |
| #define GPIO_YZAAAB_INT_SENS_1 (0x180 >> 2) |
| #define GPIO_YZAAAB_INT_SENS_2 (0x184 >> 2) |
| #define GPIO_YZAAAB_INT_STATUS (0x188 >> 2) |
| #define GPIO_YZAAAB_RESET_TOLERANT (0x18C >> 2) |
| #define GPIO_YZAAAB_DEBOUNCE_1 (0x190 >> 2) |
| #define GPIO_YZAAAB_DEBOUNCE_2 (0x194 >> 2) |
| #define GPIO_YZAAAB_INPUT_MASK (0x198 >> 2) |
| #define GPIO_AC_COMMAND_SRC_0 (0x1A0 >> 2) |
| #define GPIO_AC_COMMAND_SRC_1 (0x1A4 >> 2) |
| #define GPIO_AC_INT_ENABLE (0x1A8 >> 2) |
| #define GPIO_AC_INT_SENS_0 (0x1AC >> 2) |
| #define GPIO_AC_INT_SENS_1 (0x1B0 >> 2) |
| #define GPIO_AC_INT_SENS_2 (0x1B4 >> 2) |
| #define GPIO_AC_INT_STATUS (0x1B8 >> 2) |
| #define GPIO_AC_RESET_TOLERANT (0x1BC >> 2) |
| #define GPIO_AC_DEBOUNCE_1 (0x1C0 >> 2) |
| #define GPIO_AC_DEBOUNCE_2 (0x1C4 >> 2) |
| #define GPIO_AC_INPUT_MASK (0x1C8 >> 2) |
| #define GPIO_ABCD_INPUT_MASK (0x1D0 >> 2) |
| #define GPIO_EFGH_INPUT_MASK (0x1D4 >> 2) |
| #define GPIO_YZAAAB_DATA_VALUE (0x1E0 >> 2) |
| #define GPIO_YZAAAB_DIRECTION (0x1E4 >> 2) |
| #define GPIO_AC_DATA_VALUE (0x1E8 >> 2) |
| #define GPIO_AC_DIRECTION (0x1EC >> 2) |
| #define GPIO_3_3V_MEM_SIZE 0x1F0 |
| #define GPIO_3_3V_REG_ARRAY_SIZE (GPIO_3_3V_MEM_SIZE >> 2) |
| |
| /* AST2600 only - 1.8V gpios */ |
| /* |
| * The AST2600 two copies of the GPIO controller: the same 3.3V gpios as the |
| * AST2400 (memory offsets 0x0-0x198) and a second controller with 1.8V gpios |
| * (memory offsets 0x800-0x9D4). |
| */ |
| #define GPIO_1_8V_ABCD_DATA_VALUE (0x000 >> 2) |
| #define GPIO_1_8V_ABCD_DIRECTION (0x004 >> 2) |
| #define GPIO_1_8V_ABCD_INT_ENABLE (0x008 >> 2) |
| #define GPIO_1_8V_ABCD_INT_SENS_0 (0x00C >> 2) |
| #define GPIO_1_8V_ABCD_INT_SENS_1 (0x010 >> 2) |
| #define GPIO_1_8V_ABCD_INT_SENS_2 (0x014 >> 2) |
| #define GPIO_1_8V_ABCD_INT_STATUS (0x018 >> 2) |
| #define GPIO_1_8V_ABCD_RESET_TOLERANT (0x01C >> 2) |
| #define GPIO_1_8V_E_DATA_VALUE (0x020 >> 2) |
| #define GPIO_1_8V_E_DIRECTION (0x024 >> 2) |
| #define GPIO_1_8V_E_INT_ENABLE (0x028 >> 2) |
| #define GPIO_1_8V_E_INT_SENS_0 (0x02C >> 2) |
| #define GPIO_1_8V_E_INT_SENS_1 (0x030 >> 2) |
| #define GPIO_1_8V_E_INT_SENS_2 (0x034 >> 2) |
| #define GPIO_1_8V_E_INT_STATUS (0x038 >> 2) |
| #define GPIO_1_8V_E_RESET_TOLERANT (0x03C >> 2) |
| #define GPIO_1_8V_ABCD_DEBOUNCE_1 (0x040 >> 2) |
| #define GPIO_1_8V_ABCD_DEBOUNCE_2 (0x044 >> 2) |
| #define GPIO_1_8V_E_DEBOUNCE_1 (0x048 >> 2) |
| #define GPIO_1_8V_E_DEBOUNCE_2 (0x04C >> 2) |
| #define GPIO_1_8V_DEBOUNCE_TIME_1 (0x050 >> 2) |
| #define GPIO_1_8V_DEBOUNCE_TIME_2 (0x054 >> 2) |
| #define GPIO_1_8V_DEBOUNCE_TIME_3 (0x058 >> 2) |
| #define GPIO_1_8V_ABCD_COMMAND_SRC_0 (0x060 >> 2) |
| #define GPIO_1_8V_ABCD_COMMAND_SRC_1 (0x064 >> 2) |
| #define GPIO_1_8V_E_COMMAND_SRC_0 (0x068 >> 2) |
| #define GPIO_1_8V_E_COMMAND_SRC_1 (0x06C >> 2) |
| #define GPIO_1_8V_ABCD_DATA_READ (0x0C0 >> 2) |
| #define GPIO_1_8V_E_DATA_READ (0x0C4 >> 2) |
| #define GPIO_1_8V_ABCD_INPUT_MASK (0x1D0 >> 2) |
| #define GPIO_1_8V_E_INPUT_MASK (0x1D4 >> 2) |
| #define GPIO_1_8V_MEM_SIZE 0x1D8 |
| #define GPIO_1_8V_REG_ARRAY_SIZE (GPIO_1_8V_MEM_SIZE >> 2) |
| |
| /* |
| * GPIO index mode support |
| * It only supports write operation |
| */ |
| REG32(GPIO_INDEX_REG, 0x2AC) |
| FIELD(GPIO_INDEX_REG, NUMBER, 0, 8) |
| FIELD(GPIO_INDEX_REG, COMMAND, 12, 1) |
| FIELD(GPIO_INDEX_REG, TYPE, 16, 4) |
| FIELD(GPIO_INDEX_REG, DATA_VALUE, 20, 1) |
| FIELD(GPIO_INDEX_REG, DIRECTION, 20, 1) |
| FIELD(GPIO_INDEX_REG, INT_ENABLE, 20, 1) |
| FIELD(GPIO_INDEX_REG, INT_SENS_0, 21, 1) |
| FIELD(GPIO_INDEX_REG, INT_SENS_1, 22, 1) |
| FIELD(GPIO_INDEX_REG, INT_SENS_2, 23, 1) |
| FIELD(GPIO_INDEX_REG, INT_STATUS, 24, 1) |
| FIELD(GPIO_INDEX_REG, DEBOUNCE_1, 20, 1) |
| FIELD(GPIO_INDEX_REG, DEBOUNCE_2, 21, 1) |
| FIELD(GPIO_INDEX_REG, RESET_TOLERANT, 20, 1) |
| FIELD(GPIO_INDEX_REG, COMMAND_SRC_0, 20, 1) |
| FIELD(GPIO_INDEX_REG, COMMAND_SRC_1, 21, 1) |
| FIELD(GPIO_INDEX_REG, INPUT_MASK, 20, 1) |
| |
| static int aspeed_evaluate_irq(GPIOSets *regs, int gpio_prev_high, int gpio) |
| { |
| uint32_t falling_edge = 0, rising_edge = 0; |
| uint32_t int_trigger = extract32(regs->int_sens_0, gpio, 1) |
| | extract32(regs->int_sens_1, gpio, 1) << 1 |
| | extract32(regs->int_sens_2, gpio, 1) << 2; |
| uint32_t gpio_curr_high = extract32(regs->data_value, gpio, 1); |
| uint32_t gpio_int_enabled = extract32(regs->int_enable, gpio, 1); |
| |
| if (!gpio_int_enabled) { |
| return 0; |
| } |
| |
| /* Detect edges */ |
| if (gpio_curr_high && !gpio_prev_high) { |
| rising_edge = 1; |
| } else if (!gpio_curr_high && gpio_prev_high) { |
| falling_edge = 1; |
| } |
| |
| if (((int_trigger == ASPEED_FALLING_EDGE) && falling_edge) || |
| ((int_trigger == ASPEED_RISING_EDGE) && rising_edge) || |
| ((int_trigger == ASPEED_LEVEL_LOW) && !gpio_curr_high) || |
| ((int_trigger == ASPEED_LEVEL_HIGH) && gpio_curr_high) || |
| ((int_trigger >= ASPEED_DUAL_EDGE) && (rising_edge || falling_edge))) |
| { |
| regs->int_status = deposit32(regs->int_status, gpio, 1, 1); |
| return 1; |
| } |
| return 0; |
| } |
| |
| #define nested_struct_index(ta, pa, m, tb, pb) \ |
| (pb - ((tb *)(((char *)pa) + offsetof(ta, m)))) |
| |
| static ptrdiff_t aspeed_gpio_set_idx(AspeedGPIOState *s, GPIOSets *regs) |
| { |
| return nested_struct_index(AspeedGPIOState, s, sets, GPIOSets, regs); |
| } |
| |
| static void aspeed_gpio_update(AspeedGPIOState *s, GPIOSets *regs, |
| uint32_t value, uint32_t mode_mask) |
| { |
| uint32_t input_mask = regs->input_mask; |
| uint32_t direction = regs->direction; |
| uint32_t old = regs->data_value; |
| uint32_t new = value; |
| uint32_t diff; |
| int gpio; |
| |
| diff = (old ^ new); |
| diff &= mode_mask; |
| if (diff) { |
| for (gpio = 0; gpio < ASPEED_GPIOS_PER_SET; gpio++) { |
| uint32_t mask = 1 << gpio; |
| |
| /* If the gpio needs to be updated... */ |
| if (!(diff & mask)) { |
| continue; |
| } |
| |
| /* ...and we're output or not input-masked... */ |
| if (!(direction & mask) && (input_mask & mask)) { |
| continue; |
| } |
| |
| /* ...then update the state. */ |
| if (mask & new) { |
| regs->data_value |= mask; |
| } else { |
| regs->data_value &= ~mask; |
| } |
| |
| /* If the gpio is set to output... */ |
| if (direction & mask) { |
| /* ...trigger the line-state IRQ */ |
| ptrdiff_t set = aspeed_gpio_set_idx(s, regs); |
| qemu_set_irq(s->gpios[set][gpio], !!(new & mask)); |
| } else { |
| /* ...otherwise if we meet the line's current IRQ policy... */ |
| if (aspeed_evaluate_irq(regs, old & mask, gpio)) { |
| /* ...trigger the VIC IRQ */ |
| s->pending++; |
| } |
| } |
| } |
| } |
| qemu_set_irq(s->irq, !!(s->pending)); |
| } |
| |
| static bool aspeed_gpio_get_pin_level(AspeedGPIOState *s, uint32_t set_idx, |
| uint32_t pin) |
| { |
| uint32_t reg_val; |
| uint32_t pin_mask = 1 << pin; |
| |
| reg_val = s->sets[set_idx].data_value; |
| |
| return !!(reg_val & pin_mask); |
| } |
| |
| static void aspeed_gpio_set_pin_level(AspeedGPIOState *s, uint32_t set_idx, |
| uint32_t pin, bool level) |
| { |
| uint32_t value = s->sets[set_idx].data_value; |
| uint32_t pin_mask = 1 << pin; |
| |
| if (level) { |
| value |= pin_mask; |
| } else { |
| value &= ~pin_mask; |
| } |
| |
| aspeed_gpio_update(s, &s->sets[set_idx], value, ~s->sets[set_idx].direction); |
| } |
| |
| /* |
| * | src_1 | src_2 | source | |
| * |-----------------------------| |
| * | 0 | 0 | ARM | |
| * | 0 | 1 | LPC | |
| * | 1 | 0 | Coprocessor| |
| * | 1 | 1 | Reserved | |
| * |
| * Once the source of a set is programmed, corresponding bits in the |
| * data_value, direction, interrupt [enable, sens[0-2]], reset_tol and |
| * debounce registers can only be written by the source. |
| * |
| * Source is ARM by default |
| * only bits 24, 16, 8, and 0 can be set |
| * |
| * we don't currently have a model for the LPC or Coprocessor |
| */ |
| static uint32_t update_value_control_source(GPIOSets *regs, uint32_t old_value, |
| uint32_t value) |
| { |
| int i; |
| int cmd_source; |
| |
| /* assume the source is always ARM for now */ |
| int source = ASPEED_SOURCE_ARM; |
| |
| uint32_t new_value = 0; |
| |
| /* for each group in set */ |
| for (i = 0; i < ASPEED_GPIOS_PER_SET; i += GPIOS_PER_GROUP) { |
| cmd_source = extract32(regs->cmd_source_0, i, 1) |
| | (extract32(regs->cmd_source_1, i, 1) << 1); |
| |
| if (source == cmd_source) { |
| new_value |= (0xff << i) & value; |
| } else { |
| new_value |= (0xff << i) & old_value; |
| } |
| } |
| return new_value; |
| } |
| |
| static const AspeedGPIOReg aspeed_3_3v_gpios[GPIO_3_3V_REG_ARRAY_SIZE] = { |
| /* Set ABCD */ |
| [GPIO_ABCD_DATA_VALUE] = { 0, gpio_reg_data_value }, |
| [GPIO_ABCD_DIRECTION] = { 0, gpio_reg_direction }, |
| [GPIO_ABCD_INT_ENABLE] = { 0, gpio_reg_int_enable }, |
| [GPIO_ABCD_INT_SENS_0] = { 0, gpio_reg_int_sens_0 }, |
| [GPIO_ABCD_INT_SENS_1] = { 0, gpio_reg_int_sens_1 }, |
| [GPIO_ABCD_INT_SENS_2] = { 0, gpio_reg_int_sens_2 }, |
| [GPIO_ABCD_INT_STATUS] = { 0, gpio_reg_int_status }, |
| [GPIO_ABCD_RESET_TOLERANT] = { 0, gpio_reg_reset_tolerant }, |
| [GPIO_ABCD_DEBOUNCE_1] = { 0, gpio_reg_debounce_1 }, |
| [GPIO_ABCD_DEBOUNCE_2] = { 0, gpio_reg_debounce_2 }, |
| [GPIO_ABCD_COMMAND_SRC_0] = { 0, gpio_reg_cmd_source_0 }, |
| [GPIO_ABCD_COMMAND_SRC_1] = { 0, gpio_reg_cmd_source_1 }, |
| [GPIO_ABCD_DATA_READ] = { 0, gpio_reg_data_read }, |
| [GPIO_ABCD_INPUT_MASK] = { 0, gpio_reg_input_mask }, |
| /* Set EFGH */ |
| [GPIO_EFGH_DATA_VALUE] = { 1, gpio_reg_data_value }, |
| [GPIO_EFGH_DIRECTION] = { 1, gpio_reg_direction }, |
| [GPIO_EFGH_INT_ENABLE] = { 1, gpio_reg_int_enable }, |
| [GPIO_EFGH_INT_SENS_0] = { 1, gpio_reg_int_sens_0 }, |
| [GPIO_EFGH_INT_SENS_1] = { 1, gpio_reg_int_sens_1 }, |
| [GPIO_EFGH_INT_SENS_2] = { 1, gpio_reg_int_sens_2 }, |
| [GPIO_EFGH_INT_STATUS] = { 1, gpio_reg_int_status }, |
| [GPIO_EFGH_RESET_TOLERANT] = { 1, gpio_reg_reset_tolerant }, |
| [GPIO_EFGH_DEBOUNCE_1] = { 1, gpio_reg_debounce_1 }, |
| [GPIO_EFGH_DEBOUNCE_2] = { 1, gpio_reg_debounce_2 }, |
| [GPIO_EFGH_COMMAND_SRC_0] = { 1, gpio_reg_cmd_source_0 }, |
| [GPIO_EFGH_COMMAND_SRC_1] = { 1, gpio_reg_cmd_source_1 }, |
| [GPIO_EFGH_DATA_READ] = { 1, gpio_reg_data_read }, |
| [GPIO_EFGH_INPUT_MASK] = { 1, gpio_reg_input_mask }, |
| /* Set IJKL */ |
| [GPIO_IJKL_DATA_VALUE] = { 2, gpio_reg_data_value }, |
| [GPIO_IJKL_DIRECTION] = { 2, gpio_reg_direction }, |
| [GPIO_IJKL_INT_ENABLE] = { 2, gpio_reg_int_enable }, |
| [GPIO_IJKL_INT_SENS_0] = { 2, gpio_reg_int_sens_0 }, |
| [GPIO_IJKL_INT_SENS_1] = { 2, gpio_reg_int_sens_1 }, |
| [GPIO_IJKL_INT_SENS_2] = { 2, gpio_reg_int_sens_2 }, |
| [GPIO_IJKL_INT_STATUS] = { 2, gpio_reg_int_status }, |
| [GPIO_IJKL_RESET_TOLERANT] = { 2, gpio_reg_reset_tolerant }, |
| [GPIO_IJKL_DEBOUNCE_1] = { 2, gpio_reg_debounce_1 }, |
| [GPIO_IJKL_DEBOUNCE_2] = { 2, gpio_reg_debounce_2 }, |
| [GPIO_IJKL_COMMAND_SRC_0] = { 2, gpio_reg_cmd_source_0 }, |
| [GPIO_IJKL_COMMAND_SRC_1] = { 2, gpio_reg_cmd_source_1 }, |
| [GPIO_IJKL_DATA_READ] = { 2, gpio_reg_data_read }, |
| [GPIO_IJKL_INPUT_MASK] = { 2, gpio_reg_input_mask }, |
| /* Set MNOP */ |
| [GPIO_MNOP_DATA_VALUE] = { 3, gpio_reg_data_value }, |
| [GPIO_MNOP_DIRECTION] = { 3, gpio_reg_direction }, |
| [GPIO_MNOP_INT_ENABLE] = { 3, gpio_reg_int_enable }, |
| [GPIO_MNOP_INT_SENS_0] = { 3, gpio_reg_int_sens_0 }, |
| [GPIO_MNOP_INT_SENS_1] = { 3, gpio_reg_int_sens_1 }, |
| [GPIO_MNOP_INT_SENS_2] = { 3, gpio_reg_int_sens_2 }, |
| [GPIO_MNOP_INT_STATUS] = { 3, gpio_reg_int_status }, |
| [GPIO_MNOP_RESET_TOLERANT] = { 3, gpio_reg_reset_tolerant }, |
| [GPIO_MNOP_DEBOUNCE_1] = { 3, gpio_reg_debounce_1 }, |
| [GPIO_MNOP_DEBOUNCE_2] = { 3, gpio_reg_debounce_2 }, |
| [GPIO_MNOP_COMMAND_SRC_0] = { 3, gpio_reg_cmd_source_0 }, |
| [GPIO_MNOP_COMMAND_SRC_1] = { 3, gpio_reg_cmd_source_1 }, |
| [GPIO_MNOP_DATA_READ] = { 3, gpio_reg_data_read }, |
| [GPIO_MNOP_INPUT_MASK] = { 3, gpio_reg_input_mask }, |
| /* Set QRST */ |
| [GPIO_QRST_DATA_VALUE] = { 4, gpio_reg_data_value }, |
| [GPIO_QRST_DIRECTION] = { 4, gpio_reg_direction }, |
| [GPIO_QRST_INT_ENABLE] = { 4, gpio_reg_int_enable }, |
| [GPIO_QRST_INT_SENS_0] = { 4, gpio_reg_int_sens_0 }, |
| [GPIO_QRST_INT_SENS_1] = { 4, gpio_reg_int_sens_1 }, |
| [GPIO_QRST_INT_SENS_2] = { 4, gpio_reg_int_sens_2 }, |
| [GPIO_QRST_INT_STATUS] = { 4, gpio_reg_int_status }, |
| [GPIO_QRST_RESET_TOLERANT] = { 4, gpio_reg_reset_tolerant }, |
| [GPIO_QRST_DEBOUNCE_1] = { 4, gpio_reg_debounce_1 }, |
| [GPIO_QRST_DEBOUNCE_2] = { 4, gpio_reg_debounce_2 }, |
| [GPIO_QRST_COMMAND_SRC_0] = { 4, gpio_reg_cmd_source_0 }, |
| [GPIO_QRST_COMMAND_SRC_1] = { 4, gpio_reg_cmd_source_1 }, |
| [GPIO_QRST_DATA_READ] = { 4, gpio_reg_data_read }, |
| [GPIO_QRST_INPUT_MASK] = { 4, gpio_reg_input_mask }, |
| /* Set UVWX */ |
| [GPIO_UVWX_DATA_VALUE] = { 5, gpio_reg_data_value }, |
| [GPIO_UVWX_DIRECTION] = { 5, gpio_reg_direction }, |
| [GPIO_UVWX_INT_ENABLE] = { 5, gpio_reg_int_enable }, |
| [GPIO_UVWX_INT_SENS_0] = { 5, gpio_reg_int_sens_0 }, |
| [GPIO_UVWX_INT_SENS_1] = { 5, gpio_reg_int_sens_1 }, |
| [GPIO_UVWX_INT_SENS_2] = { 5, gpio_reg_int_sens_2 }, |
| [GPIO_UVWX_INT_STATUS] = { 5, gpio_reg_int_status }, |
| [GPIO_UVWX_RESET_TOLERANT] = { 5, gpio_reg_reset_tolerant }, |
| [GPIO_UVWX_DEBOUNCE_1] = { 5, gpio_reg_debounce_1 }, |
| [GPIO_UVWX_DEBOUNCE_2] = { 5, gpio_reg_debounce_2 }, |
| [GPIO_UVWX_COMMAND_SRC_0] = { 5, gpio_reg_cmd_source_0 }, |
| [GPIO_UVWX_COMMAND_SRC_1] = { 5, gpio_reg_cmd_source_1 }, |
| [GPIO_UVWX_DATA_READ] = { 5, gpio_reg_data_read }, |
| [GPIO_UVWX_INPUT_MASK] = { 5, gpio_reg_input_mask }, |
| /* Set YZAAAB */ |
| [GPIO_YZAAAB_DATA_VALUE] = { 6, gpio_reg_data_value }, |
| [GPIO_YZAAAB_DIRECTION] = { 6, gpio_reg_direction }, |
| [GPIO_YZAAAB_INT_ENABLE] = { 6, gpio_reg_int_enable }, |
| [GPIO_YZAAAB_INT_SENS_0] = { 6, gpio_reg_int_sens_0 }, |
| [GPIO_YZAAAB_INT_SENS_1] = { 6, gpio_reg_int_sens_1 }, |
| [GPIO_YZAAAB_INT_SENS_2] = { 6, gpio_reg_int_sens_2 }, |
| [GPIO_YZAAAB_INT_STATUS] = { 6, gpio_reg_int_status }, |
| [GPIO_YZAAAB_RESET_TOLERANT] = { 6, gpio_reg_reset_tolerant }, |
| [GPIO_YZAAAB_DEBOUNCE_1] = { 6, gpio_reg_debounce_1 }, |
| [GPIO_YZAAAB_DEBOUNCE_2] = { 6, gpio_reg_debounce_2 }, |
| [GPIO_YZAAAB_COMMAND_SRC_0] = { 6, gpio_reg_cmd_source_0 }, |
| [GPIO_YZAAAB_COMMAND_SRC_1] = { 6, gpio_reg_cmd_source_1 }, |
| [GPIO_YZAAAB_DATA_READ] = { 6, gpio_reg_data_read }, |
| [GPIO_YZAAAB_INPUT_MASK] = { 6, gpio_reg_input_mask }, |
| /* Set AC (ast2500 only) */ |
| [GPIO_AC_DATA_VALUE] = { 7, gpio_reg_data_value }, |
| [GPIO_AC_DIRECTION] = { 7, gpio_reg_direction }, |
| [GPIO_AC_INT_ENABLE] = { 7, gpio_reg_int_enable }, |
| [GPIO_AC_INT_SENS_0] = { 7, gpio_reg_int_sens_0 }, |
| [GPIO_AC_INT_SENS_1] = { 7, gpio_reg_int_sens_1 }, |
| [GPIO_AC_INT_SENS_2] = { 7, gpio_reg_int_sens_2 }, |
| [GPIO_AC_INT_STATUS] = { 7, gpio_reg_int_status }, |
| [GPIO_AC_RESET_TOLERANT] = { 7, gpio_reg_reset_tolerant }, |
| [GPIO_AC_DEBOUNCE_1] = { 7, gpio_reg_debounce_1 }, |
| [GPIO_AC_DEBOUNCE_2] = { 7, gpio_reg_debounce_2 }, |
| [GPIO_AC_COMMAND_SRC_0] = { 7, gpio_reg_cmd_source_0 }, |
| [GPIO_AC_COMMAND_SRC_1] = { 7, gpio_reg_cmd_source_1 }, |
| [GPIO_AC_DATA_READ] = { 7, gpio_reg_data_read }, |
| [GPIO_AC_INPUT_MASK] = { 7, gpio_reg_input_mask }, |
| }; |
| |
| static const AspeedGPIOReg aspeed_1_8v_gpios[GPIO_1_8V_REG_ARRAY_SIZE] = { |
| /* 1.8V Set ABCD */ |
| [GPIO_1_8V_ABCD_DATA_VALUE] = {0, gpio_reg_data_value}, |
| [GPIO_1_8V_ABCD_DIRECTION] = {0, gpio_reg_direction}, |
| [GPIO_1_8V_ABCD_INT_ENABLE] = {0, gpio_reg_int_enable}, |
| [GPIO_1_8V_ABCD_INT_SENS_0] = {0, gpio_reg_int_sens_0}, |
| [GPIO_1_8V_ABCD_INT_SENS_1] = {0, gpio_reg_int_sens_1}, |
| [GPIO_1_8V_ABCD_INT_SENS_2] = {0, gpio_reg_int_sens_2}, |
| [GPIO_1_8V_ABCD_INT_STATUS] = {0, gpio_reg_int_status}, |
| [GPIO_1_8V_ABCD_RESET_TOLERANT] = {0, gpio_reg_reset_tolerant}, |
| [GPIO_1_8V_ABCD_DEBOUNCE_1] = {0, gpio_reg_debounce_1}, |
| [GPIO_1_8V_ABCD_DEBOUNCE_2] = {0, gpio_reg_debounce_2}, |
| [GPIO_1_8V_ABCD_COMMAND_SRC_0] = {0, gpio_reg_cmd_source_0}, |
| [GPIO_1_8V_ABCD_COMMAND_SRC_1] = {0, gpio_reg_cmd_source_1}, |
| [GPIO_1_8V_ABCD_DATA_READ] = {0, gpio_reg_data_read}, |
| [GPIO_1_8V_ABCD_INPUT_MASK] = {0, gpio_reg_input_mask}, |
| /* 1.8V Set E */ |
| [GPIO_1_8V_E_DATA_VALUE] = {1, gpio_reg_data_value}, |
| [GPIO_1_8V_E_DIRECTION] = {1, gpio_reg_direction}, |
| [GPIO_1_8V_E_INT_ENABLE] = {1, gpio_reg_int_enable}, |
| [GPIO_1_8V_E_INT_SENS_0] = {1, gpio_reg_int_sens_0}, |
| [GPIO_1_8V_E_INT_SENS_1] = {1, gpio_reg_int_sens_1}, |
| [GPIO_1_8V_E_INT_SENS_2] = {1, gpio_reg_int_sens_2}, |
| [GPIO_1_8V_E_INT_STATUS] = {1, gpio_reg_int_status}, |
| [GPIO_1_8V_E_RESET_TOLERANT] = {1, gpio_reg_reset_tolerant}, |
| [GPIO_1_8V_E_DEBOUNCE_1] = {1, gpio_reg_debounce_1}, |
| [GPIO_1_8V_E_DEBOUNCE_2] = {1, gpio_reg_debounce_2}, |
| [GPIO_1_8V_E_COMMAND_SRC_0] = {1, gpio_reg_cmd_source_0}, |
| [GPIO_1_8V_E_COMMAND_SRC_1] = {1, gpio_reg_cmd_source_1}, |
| [GPIO_1_8V_E_DATA_READ] = {1, gpio_reg_data_read}, |
| [GPIO_1_8V_E_INPUT_MASK] = {1, gpio_reg_input_mask}, |
| }; |
| |
| static uint64_t aspeed_gpio_read(void *opaque, hwaddr offset, uint32_t size) |
| { |
| AspeedGPIOState *s = ASPEED_GPIO(opaque); |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| uint64_t idx = -1; |
| const AspeedGPIOReg *reg; |
| GPIOSets *set; |
| uint32_t value = 0; |
| uint64_t debounce_value; |
| |
| idx = offset >> 2; |
| if (idx >= GPIO_DEBOUNCE_TIME_1 && idx <= GPIO_DEBOUNCE_TIME_3) { |
| idx -= GPIO_DEBOUNCE_TIME_1; |
| debounce_value = (uint64_t) s->debounce_regs[idx]; |
| trace_aspeed_gpio_read(offset, debounce_value); |
| return debounce_value; |
| } |
| |
| if (idx >= agc->reg_table_count) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: idx 0x%" PRIx64 " out of bounds\n", |
| __func__, idx); |
| return 0; |
| } |
| |
| reg = &agc->reg_table[idx]; |
| if (reg->set_idx >= agc->nr_gpio_sets) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%" |
| PRIx64"\n", __func__, offset); |
| return 0; |
| } |
| |
| set = &s->sets[reg->set_idx]; |
| switch (reg->type) { |
| case gpio_reg_data_value: |
| value = set->data_value; |
| break; |
| case gpio_reg_direction: |
| value = set->direction; |
| break; |
| case gpio_reg_int_enable: |
| value = set->int_enable; |
| break; |
| case gpio_reg_int_sens_0: |
| value = set->int_sens_0; |
| break; |
| case gpio_reg_int_sens_1: |
| value = set->int_sens_1; |
| break; |
| case gpio_reg_int_sens_2: |
| value = set->int_sens_2; |
| break; |
| case gpio_reg_int_status: |
| value = set->int_status; |
| break; |
| case gpio_reg_reset_tolerant: |
| value = set->reset_tol; |
| break; |
| case gpio_reg_debounce_1: |
| value = set->debounce_1; |
| break; |
| case gpio_reg_debounce_2: |
| value = set->debounce_2; |
| break; |
| case gpio_reg_cmd_source_0: |
| value = set->cmd_source_0; |
| break; |
| case gpio_reg_cmd_source_1: |
| value = set->cmd_source_1; |
| break; |
| case gpio_reg_data_read: |
| value = set->data_read; |
| break; |
| case gpio_reg_input_mask: |
| value = set->input_mask; |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%" |
| PRIx64"\n", __func__, offset); |
| return 0; |
| } |
| |
| trace_aspeed_gpio_read(offset, value); |
| return value; |
| } |
| |
| static void aspeed_gpio_write_index_mode(void *opaque, hwaddr offset, |
| uint64_t data, uint32_t size) |
| { |
| |
| AspeedGPIOState *s = ASPEED_GPIO(opaque); |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| const GPIOSetProperties *props; |
| GPIOSets *set; |
| uint32_t reg_idx_number = FIELD_EX32(data, GPIO_INDEX_REG, NUMBER); |
| uint32_t reg_idx_type = FIELD_EX32(data, GPIO_INDEX_REG, TYPE); |
| uint32_t reg_idx_command = FIELD_EX32(data, GPIO_INDEX_REG, COMMAND); |
| uint32_t set_idx = reg_idx_number / ASPEED_GPIOS_PER_SET; |
| uint32_t pin_idx = reg_idx_number % ASPEED_GPIOS_PER_SET; |
| uint32_t group_idx = pin_idx / GPIOS_PER_GROUP; |
| uint32_t reg_value = 0; |
| uint32_t cleared; |
| |
| set = &s->sets[set_idx]; |
| props = &agc->props[set_idx]; |
| |
| if (reg_idx_command) |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: offset 0x%" PRIx64 "data 0x%" |
| PRIx64 "index mode wrong command 0x%x\n", |
| __func__, offset, data, reg_idx_command); |
| |
| switch (reg_idx_type) { |
| case gpio_reg_idx_data: |
| reg_value = set->data_read; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, DATA_VALUE)); |
| reg_value &= props->output; |
| reg_value = update_value_control_source(set, set->data_value, |
| reg_value); |
| set->data_read = reg_value; |
| aspeed_gpio_update(s, set, reg_value, set->direction); |
| return; |
| case gpio_reg_idx_direction: |
| reg_value = set->direction; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, DIRECTION)); |
| /* |
| * where data is the value attempted to be written to the pin: |
| * pin type | input mask | output mask | expected value |
| * ------------------------------------------------------------ |
| * bidirectional | 1 | 1 | data |
| * input only | 1 | 0 | 0 |
| * output only | 0 | 1 | 1 |
| * no pin | 0 | 0 | 0 |
| * |
| * which is captured by: |
| * data = ( data | ~input) & output; |
| */ |
| reg_value = (reg_value | ~props->input) & props->output; |
| set->direction = update_value_control_source(set, set->direction, |
| reg_value); |
| break; |
| case gpio_reg_idx_interrupt: |
| reg_value = set->int_enable; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INT_ENABLE)); |
| set->int_enable = update_value_control_source(set, set->int_enable, |
| reg_value); |
| reg_value = set->int_sens_0; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INT_SENS_0)); |
| set->int_sens_0 = update_value_control_source(set, set->int_sens_0, |
| reg_value); |
| reg_value = set->int_sens_1; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INT_SENS_1)); |
| set->int_sens_1 = update_value_control_source(set, set->int_sens_1, |
| reg_value); |
| reg_value = set->int_sens_2; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INT_SENS_2)); |
| set->int_sens_2 = update_value_control_source(set, set->int_sens_2, |
| reg_value); |
| /* set interrupt status */ |
| reg_value = set->int_status; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INT_STATUS)); |
| cleared = ctpop32(reg_value & set->int_status); |
| if (s->pending && cleared) { |
| assert(s->pending >= cleared); |
| s->pending -= cleared; |
| } |
| set->int_status &= ~reg_value; |
| break; |
| case gpio_reg_idx_debounce: |
| reg_value = set->debounce_1; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, DEBOUNCE_1)); |
| set->debounce_1 = update_value_control_source(set, set->debounce_1, |
| reg_value); |
| reg_value = set->debounce_2; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, DEBOUNCE_2)); |
| set->debounce_2 = update_value_control_source(set, set->debounce_2, |
| reg_value); |
| return; |
| case gpio_reg_idx_tolerance: |
| reg_value = set->reset_tol; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, RESET_TOLERANT)); |
| set->reset_tol = update_value_control_source(set, set->reset_tol, |
| reg_value); |
| return; |
| case gpio_reg_idx_cmd_src: |
| reg_value = set->cmd_source_0; |
| reg_value = deposit32(reg_value, GPIOS_PER_GROUP * group_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, COMMAND_SRC_0)); |
| set->cmd_source_0 = reg_value & ASPEED_CMD_SRC_MASK; |
| reg_value = set->cmd_source_1; |
| reg_value = deposit32(reg_value, GPIOS_PER_GROUP * group_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, COMMAND_SRC_1)); |
| set->cmd_source_1 = reg_value & ASPEED_CMD_SRC_MASK; |
| return; |
| case gpio_reg_idx_input_mask: |
| reg_value = set->input_mask; |
| reg_value = deposit32(reg_value, pin_idx, 1, |
| FIELD_EX32(data, GPIO_INDEX_REG, INPUT_MASK)); |
| /* |
| * feeds into interrupt generation |
| * 0: read from data value reg will be updated |
| * 1: read from data value reg will not be updated |
| */ |
| set->input_mask = reg_value & props->input; |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: offset 0x%" PRIx64 "data 0x%" |
| PRIx64 "index mode wrong type 0x%x\n", |
| __func__, offset, data, reg_idx_type); |
| return; |
| } |
| aspeed_gpio_update(s, set, set->data_value, UINT32_MAX); |
| return; |
| } |
| |
| static void aspeed_gpio_write(void *opaque, hwaddr offset, uint64_t data, |
| uint32_t size) |
| { |
| AspeedGPIOState *s = ASPEED_GPIO(opaque); |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| const GPIOSetProperties *props; |
| uint64_t idx = -1; |
| const AspeedGPIOReg *reg; |
| GPIOSets *set; |
| uint32_t cleared; |
| |
| trace_aspeed_gpio_write(offset, data); |
| |
| idx = offset >> 2; |
| |
| /* check gpio index mode */ |
| if (idx == R_GPIO_INDEX_REG) { |
| aspeed_gpio_write_index_mode(opaque, offset, data, size); |
| return; |
| } |
| |
| if (idx >= GPIO_DEBOUNCE_TIME_1 && idx <= GPIO_DEBOUNCE_TIME_3) { |
| idx -= GPIO_DEBOUNCE_TIME_1; |
| s->debounce_regs[idx] = (uint32_t) data; |
| return; |
| } |
| |
| if (idx >= agc->reg_table_count) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: idx 0x%" PRIx64 " out of bounds\n", |
| __func__, idx); |
| return; |
| } |
| |
| reg = &agc->reg_table[idx]; |
| if (reg->set_idx >= agc->nr_gpio_sets) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: no setter for offset 0x%" |
| PRIx64"\n", __func__, offset); |
| return; |
| } |
| |
| set = &s->sets[reg->set_idx]; |
| props = &agc->props[reg->set_idx]; |
| |
| switch (reg->type) { |
| case gpio_reg_data_value: |
| data &= props->output; |
| data = update_value_control_source(set, set->data_value, data); |
| set->data_read = data; |
| aspeed_gpio_update(s, set, data, set->direction); |
| return; |
| case gpio_reg_direction: |
| /* |
| * where data is the value attempted to be written to the pin: |
| * pin type | input mask | output mask | expected value |
| * ------------------------------------------------------------ |
| * bidirectional | 1 | 1 | data |
| * input only | 1 | 0 | 0 |
| * output only | 0 | 1 | 1 |
| * no pin | 0 | 0 | 0 |
| * |
| * which is captured by: |
| * data = ( data | ~input) & output; |
| */ |
| data = (data | ~props->input) & props->output; |
| set->direction = update_value_control_source(set, set->direction, data); |
| break; |
| case gpio_reg_int_enable: |
| set->int_enable = update_value_control_source(set, set->int_enable, |
| data); |
| break; |
| case gpio_reg_int_sens_0: |
| set->int_sens_0 = update_value_control_source(set, set->int_sens_0, |
| data); |
| break; |
| case gpio_reg_int_sens_1: |
| set->int_sens_1 = update_value_control_source(set, set->int_sens_1, |
| data); |
| break; |
| case gpio_reg_int_sens_2: |
| set->int_sens_2 = update_value_control_source(set, set->int_sens_2, |
| data); |
| break; |
| case gpio_reg_int_status: |
| cleared = ctpop32(data & set->int_status); |
| if (s->pending && cleared) { |
| assert(s->pending >= cleared); |
| s->pending -= cleared; |
| } |
| set->int_status &= ~data; |
| break; |
| case gpio_reg_reset_tolerant: |
| set->reset_tol = update_value_control_source(set, set->reset_tol, |
| data); |
| return; |
| case gpio_reg_debounce_1: |
| set->debounce_1 = update_value_control_source(set, set->debounce_1, |
| data); |
| return; |
| case gpio_reg_debounce_2: |
| set->debounce_2 = update_value_control_source(set, set->debounce_2, |
| data); |
| return; |
| case gpio_reg_cmd_source_0: |
| set->cmd_source_0 = data & ASPEED_CMD_SRC_MASK; |
| return; |
| case gpio_reg_cmd_source_1: |
| set->cmd_source_1 = data & ASPEED_CMD_SRC_MASK; |
| return; |
| case gpio_reg_data_read: |
| /* Read only register */ |
| return; |
| case gpio_reg_input_mask: |
| /* |
| * feeds into interrupt generation |
| * 0: read from data value reg will be updated |
| * 1: read from data value reg will not be updated |
| */ |
| set->input_mask = data & props->input; |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: no setter for offset 0x%" |
| PRIx64"\n", __func__, offset); |
| return; |
| } |
| aspeed_gpio_update(s, set, set->data_value, UINT32_MAX); |
| return; |
| } |
| |
| static int get_set_idx(AspeedGPIOState *s, const char *group, int *group_idx) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| int set_idx, g_idx; |
| |
| for (set_idx = 0; set_idx < agc->nr_gpio_sets; set_idx++) { |
| const GPIOSetProperties *set_props = &agc->props[set_idx]; |
| for (g_idx = 0; g_idx < ASPEED_GROUPS_PER_SET; g_idx++) { |
| if (!strncmp(group, set_props->group_label[g_idx], strlen(group))) { |
| *group_idx = g_idx; |
| return set_idx; |
| } |
| } |
| } |
| return -1; |
| } |
| |
| static void aspeed_gpio_get_pin(Object *obj, Visitor *v, const char *name, |
| void *opaque, Error **errp) |
| { |
| int pin = 0xfff; |
| bool level = true; |
| char group[4]; |
| AspeedGPIOState *s = ASPEED_GPIO(obj); |
| int set_idx, group_idx = 0; |
| |
| if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) { |
| /* 1.8V gpio */ |
| if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) { |
| error_setg(errp, "%s: error reading %s", __func__, name); |
| return; |
| } |
| } |
| set_idx = get_set_idx(s, group, &group_idx); |
| if (set_idx == -1) { |
| error_setg(errp, "%s: invalid group %s", __func__, group); |
| return; |
| } |
| pin = pin + group_idx * GPIOS_PER_GROUP; |
| level = aspeed_gpio_get_pin_level(s, set_idx, pin); |
| visit_type_bool(v, name, &level, errp); |
| } |
| |
| static void aspeed_gpio_set_pin(Object *obj, Visitor *v, const char *name, |
| void *opaque, Error **errp) |
| { |
| bool level; |
| int pin = 0xfff; |
| char group[4]; |
| AspeedGPIOState *s = ASPEED_GPIO(obj); |
| int set_idx, group_idx = 0; |
| |
| if (!visit_type_bool(v, name, &level, errp)) { |
| return; |
| } |
| if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) { |
| /* 1.8V gpio */ |
| if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) { |
| error_setg(errp, "%s: error reading %s", __func__, name); |
| return; |
| } |
| } |
| set_idx = get_set_idx(s, group, &group_idx); |
| if (set_idx == -1) { |
| error_setg(errp, "%s: invalid group %s", __func__, group); |
| return; |
| } |
| pin = pin + group_idx * GPIOS_PER_GROUP; |
| aspeed_gpio_set_pin_level(s, set_idx, pin, level); |
| } |
| |
| /****************** Setup functions ******************/ |
| static const GPIOSetProperties ast2400_set_props[ASPEED_GPIO_MAX_NR_SETS] = { |
| [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} }, |
| [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} }, |
| [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} }, |
| [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} }, |
| [4] = {0xffffffff, 0xffffffff, {"Q", "R", "S", "T"} }, |
| [5] = {0xffffffff, 0x0000ffff, {"U", "V", "W", "X"} }, |
| [6] = {0x0000000f, 0x0fffff0f, {"Y", "Z", "AA", "AB"} }, |
| }; |
| |
| static const GPIOSetProperties ast2500_set_props[ASPEED_GPIO_MAX_NR_SETS] = { |
| [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} }, |
| [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} }, |
| [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} }, |
| [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} }, |
| [4] = {0xffffffff, 0xffffffff, {"Q", "R", "S", "T"} }, |
| [5] = {0xffffffff, 0x0000ffff, {"U", "V", "W", "X"} }, |
| [6] = {0x0fffffff, 0x0fffffff, {"Y", "Z", "AA", "AB"} }, |
| [7] = {0x000000ff, 0x000000ff, {"AC"} }, |
| }; |
| |
| static GPIOSetProperties ast2600_3_3v_set_props[ASPEED_GPIO_MAX_NR_SETS] = { |
| [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} }, |
| [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} }, |
| [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} }, |
| [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} }, |
| [4] = {0xffffffff, 0x00ffffff, {"Q", "R", "S", "T"} }, |
| [5] = {0xffffffff, 0xffffff00, {"U", "V", "W", "X"} }, |
| [6] = {0x0000ffff, 0x0000ffff, {"Y", "Z"} }, |
| }; |
| |
| static GPIOSetProperties ast2600_1_8v_set_props[ASPEED_GPIO_MAX_NR_SETS] = { |
| [0] = {0xffffffff, 0xffffffff, {"18A", "18B", "18C", "18D"} }, |
| [1] = {0x0000000f, 0x0000000f, {"18E"} }, |
| }; |
| |
| static GPIOSetProperties ast1030_set_props[ASPEED_GPIO_MAX_NR_SETS] = { |
| [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} }, |
| [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} }, |
| [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} }, |
| [3] = {0xffffff3f, 0xffffff3f, {"M", "N", "O", "P"} }, |
| [4] = {0xff060c1f, 0x00060c1f, {"Q", "R", "S", "T"} }, |
| [5] = {0x000000ff, 0x00000000, {"U"} }, |
| }; |
| |
| static const MemoryRegionOps aspeed_gpio_ops = { |
| .read = aspeed_gpio_read, |
| .write = aspeed_gpio_write, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| .valid.min_access_size = 4, |
| .valid.max_access_size = 4, |
| }; |
| |
| static void aspeed_gpio_reset(DeviceState *dev) |
| { |
| AspeedGPIOState *s = ASPEED_GPIO(dev); |
| |
| /* TODO: respect the reset tolerance registers */ |
| memset(s->sets, 0, sizeof(s->sets)); |
| } |
| |
| static void aspeed_gpio_realize(DeviceState *dev, Error **errp) |
| { |
| AspeedGPIOState *s = ASPEED_GPIO(dev); |
| SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| |
| /* Interrupt parent line */ |
| sysbus_init_irq(sbd, &s->irq); |
| |
| /* Individual GPIOs */ |
| for (int i = 0; i < ASPEED_GPIO_MAX_NR_SETS; i++) { |
| const GPIOSetProperties *props = &agc->props[i]; |
| uint32_t skip = ~(props->input | props->output); |
| for (int j = 0; j < ASPEED_GPIOS_PER_SET; j++) { |
| if (skip >> j & 1) { |
| continue; |
| } |
| sysbus_init_irq(sbd, &s->gpios[i][j]); |
| } |
| } |
| |
| memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_gpio_ops, s, |
| TYPE_ASPEED_GPIO, 0x800); |
| |
| sysbus_init_mmio(sbd, &s->iomem); |
| } |
| |
| static void aspeed_gpio_init(Object *obj) |
| { |
| AspeedGPIOState *s = ASPEED_GPIO(obj); |
| AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s); |
| |
| for (int i = 0; i < ASPEED_GPIO_MAX_NR_SETS; i++) { |
| const GPIOSetProperties *props = &agc->props[i]; |
| uint32_t skip = ~(props->input | props->output); |
| for (int j = 0; j < ASPEED_GPIOS_PER_SET; j++) { |
| if (skip >> j & 1) { |
| continue; |
| } |
| int group_idx = j / GPIOS_PER_GROUP; |
| int pin_idx = j % GPIOS_PER_GROUP; |
| const char *group = &props->group_label[group_idx][0]; |
| char *name = g_strdup_printf("gpio%s%d", group, pin_idx); |
| object_property_add(obj, name, "bool", aspeed_gpio_get_pin, |
| aspeed_gpio_set_pin, NULL, NULL); |
| g_free(name); |
| } |
| } |
| } |
| |
| static const VMStateDescription vmstate_gpio_regs = { |
| .name = TYPE_ASPEED_GPIO"/regs", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32(data_value, GPIOSets), |
| VMSTATE_UINT32(data_read, GPIOSets), |
| VMSTATE_UINT32(direction, GPIOSets), |
| VMSTATE_UINT32(int_enable, GPIOSets), |
| VMSTATE_UINT32(int_sens_0, GPIOSets), |
| VMSTATE_UINT32(int_sens_1, GPIOSets), |
| VMSTATE_UINT32(int_sens_2, GPIOSets), |
| VMSTATE_UINT32(int_status, GPIOSets), |
| VMSTATE_UINT32(reset_tol, GPIOSets), |
| VMSTATE_UINT32(cmd_source_0, GPIOSets), |
| VMSTATE_UINT32(cmd_source_1, GPIOSets), |
| VMSTATE_UINT32(debounce_1, GPIOSets), |
| VMSTATE_UINT32(debounce_2, GPIOSets), |
| VMSTATE_UINT32(input_mask, GPIOSets), |
| VMSTATE_END_OF_LIST(), |
| } |
| }; |
| |
| static const VMStateDescription vmstate_aspeed_gpio = { |
| .name = TYPE_ASPEED_GPIO, |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_STRUCT_ARRAY(sets, AspeedGPIOState, ASPEED_GPIO_MAX_NR_SETS, |
| 1, vmstate_gpio_regs, GPIOSets), |
| VMSTATE_UINT32_ARRAY(debounce_regs, AspeedGPIOState, |
| ASPEED_GPIO_NR_DEBOUNCE_REGS), |
| VMSTATE_END_OF_LIST(), |
| } |
| }; |
| |
| static void aspeed_gpio_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->realize = aspeed_gpio_realize; |
| device_class_set_legacy_reset(dc, aspeed_gpio_reset); |
| dc->desc = "Aspeed GPIO Controller"; |
| dc->vmsd = &vmstate_aspeed_gpio; |
| } |
| |
| static void aspeed_gpio_ast2400_class_init(ObjectClass *klass, void *data) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass); |
| |
| agc->props = ast2400_set_props; |
| agc->nr_gpio_pins = 216; |
| agc->nr_gpio_sets = 7; |
| agc->reg_table = aspeed_3_3v_gpios; |
| agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE; |
| } |
| |
| static void aspeed_gpio_2500_class_init(ObjectClass *klass, void *data) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass); |
| |
| agc->props = ast2500_set_props; |
| agc->nr_gpio_pins = 228; |
| agc->nr_gpio_sets = 8; |
| agc->reg_table = aspeed_3_3v_gpios; |
| agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE; |
| } |
| |
| static void aspeed_gpio_ast2600_3_3v_class_init(ObjectClass *klass, void *data) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass); |
| |
| agc->props = ast2600_3_3v_set_props; |
| agc->nr_gpio_pins = 208; |
| agc->nr_gpio_sets = 7; |
| agc->reg_table = aspeed_3_3v_gpios; |
| agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE; |
| } |
| |
| static void aspeed_gpio_ast2600_1_8v_class_init(ObjectClass *klass, void *data) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass); |
| |
| agc->props = ast2600_1_8v_set_props; |
| agc->nr_gpio_pins = 36; |
| agc->nr_gpio_sets = 2; |
| agc->reg_table = aspeed_1_8v_gpios; |
| agc->reg_table_count = GPIO_1_8V_REG_ARRAY_SIZE; |
| } |
| |
| static void aspeed_gpio_1030_class_init(ObjectClass *klass, void *data) |
| { |
| AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass); |
| |
| agc->props = ast1030_set_props; |
| agc->nr_gpio_pins = 151; |
| agc->nr_gpio_sets = 6; |
| agc->reg_table = aspeed_3_3v_gpios; |
| agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE; |
| } |
| |
| static const TypeInfo aspeed_gpio_info = { |
| .name = TYPE_ASPEED_GPIO, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(AspeedGPIOState), |
| .class_size = sizeof(AspeedGPIOClass), |
| .class_init = aspeed_gpio_class_init, |
| .abstract = true, |
| }; |
| |
| static const TypeInfo aspeed_gpio_ast2400_info = { |
| .name = TYPE_ASPEED_GPIO "-ast2400", |
| .parent = TYPE_ASPEED_GPIO, |
| .class_init = aspeed_gpio_ast2400_class_init, |
| .instance_init = aspeed_gpio_init, |
| }; |
| |
| static const TypeInfo aspeed_gpio_ast2500_info = { |
| .name = TYPE_ASPEED_GPIO "-ast2500", |
| .parent = TYPE_ASPEED_GPIO, |
| .class_init = aspeed_gpio_2500_class_init, |
| .instance_init = aspeed_gpio_init, |
| }; |
| |
| static const TypeInfo aspeed_gpio_ast2600_3_3v_info = { |
| .name = TYPE_ASPEED_GPIO "-ast2600", |
| .parent = TYPE_ASPEED_GPIO, |
| .class_init = aspeed_gpio_ast2600_3_3v_class_init, |
| .instance_init = aspeed_gpio_init, |
| }; |
| |
| static const TypeInfo aspeed_gpio_ast2600_1_8v_info = { |
| .name = TYPE_ASPEED_GPIO "-ast2600-1_8v", |
| .parent = TYPE_ASPEED_GPIO, |
| .class_init = aspeed_gpio_ast2600_1_8v_class_init, |
| .instance_init = aspeed_gpio_init, |
| }; |
| |
| static const TypeInfo aspeed_gpio_ast1030_info = { |
| .name = TYPE_ASPEED_GPIO "-ast1030", |
| .parent = TYPE_ASPEED_GPIO, |
| .class_init = aspeed_gpio_1030_class_init, |
| .instance_init = aspeed_gpio_init, |
| }; |
| |
| static void aspeed_gpio_register_types(void) |
| { |
| type_register_static(&aspeed_gpio_info); |
| type_register_static(&aspeed_gpio_ast2400_info); |
| type_register_static(&aspeed_gpio_ast2500_info); |
| type_register_static(&aspeed_gpio_ast2600_3_3v_info); |
| type_register_static(&aspeed_gpio_ast2600_1_8v_info); |
| type_register_static(&aspeed_gpio_ast1030_info); |
| } |
| |
| type_init(aspeed_gpio_register_types); |
