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qemu-e2k/hw/gpio/aspeed_gpio.c
Richard Henderson 3b9e779b86 hw/gpio: Constify VMState 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231221031652.119827-29-richard.henderson@linaro.org>
2023-12-29 11:17:30 +11:00

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/*
* 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;
}
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;
}
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;
dc->reset = 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;
}
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;
}
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;
}
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;
}
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;
}
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);
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