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xemu/hw/gpio/aspeed_gpio.c
Markus Armbruster 668f62ec62 error: Eliminate error_propagate() with Coccinelle, part 1 
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  Convert

    if (!foo(..., &err)) {
        ...
        error_propagate(errp, err);
        ...
        return ...
    }

to

    if (!foo(..., errp)) {
        ...
        ...
        return ...
    }

where nothing else needs @err.  Coccinelle script:

    @rule1 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
         if (
    (
    -        fun(args, &err, args2)
    +        fun(args, errp, args2)
    |
    -        !fun(args, &err, args2)
    +        !fun(args, errp, args2)
    |
    -        fun(args, &err, args2) op c1
    +        fun(args, errp, args2) op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    )
         }

    @rule2 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    expression var;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
    -    var = fun(args, &err, args2);
    +    var = fun(args, errp, args2);
         ... when != err
         if (
    (
             var
    |
             !var
    |
             var op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    |
             return var;
    )
         }

    @depends on rule1 || rule2@
    identifier err;
    @@
    -    Error *err = NULL;
         ... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

         if (fun(args, &err)) {
             goto out
         }
         ...
     out:
         error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly.  I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err".  For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there.  Converted manually.

Line breaks tidied up manually.  One nested declaration of @local_err
deleted manually.  Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10 15:18:08 +02:00

1013 lines
39 KiB
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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 "include/hw/misc/aspeed_scu.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "hw/irq.h"
#include "migration/vmstate.h"
#define GPIOS_PER_REG 32
#define GPIOS_PER_SET GPIOS_PER_REG
#define GPIO_PIN_GAP_SIZE 4
#define GPIOS_PER_GROUP 8
#define GPIO_GROUP_SHIFT 3
/* 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_6V_MEM_SIZE 0x1F0
#define GPIO_3_6V_REG_ARRAY_SIZE (GPIO_3_6V_MEM_SIZE >> 2)
/* AST2600 only - 1.8V gpios */
/*
* The AST2600 has same 3.6V gpios as the AST2400 (memory offsets 0x0-0x198)
* and addtional 1.8V gpios (memory offsets 0x800-0x9D4).
*/
#define GPIO_1_8V_REG_OFFSET 0x800
#define GPIO_1_8V_ABCD_DATA_VALUE ((0x800 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_DIRECTION ((0x804 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INT_ENABLE ((0x808 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INT_SENS_0 ((0x80C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INT_SENS_1 ((0x810 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INT_SENS_2 ((0x814 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INT_STATUS ((0x818 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_RESET_TOLERANT ((0x81C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_DATA_VALUE ((0x820 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_DIRECTION ((0x824 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INT_ENABLE ((0x828 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INT_SENS_0 ((0x82C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INT_SENS_1 ((0x830 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INT_SENS_2 ((0x834 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INT_STATUS ((0x838 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_RESET_TOLERANT ((0x83C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_DEBOUNCE_1 ((0x840 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_DEBOUNCE_2 ((0x844 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_DEBOUNCE_1 ((0x848 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_DEBOUNCE_2 ((0x84C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_DEBOUNCE_TIME_1 ((0x850 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_DEBOUNCE_TIME_2 ((0x854 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_DEBOUNCE_TIME_3 ((0x858 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_COMMAND_SRC_0 ((0x860 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_COMMAND_SRC_1 ((0x864 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_COMMAND_SRC_0 ((0x868 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_COMMAND_SRC_1 ((0x86C - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_DATA_READ ((0x8C0 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_DATA_READ ((0x8C4 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_ABCD_INPUT_MASK ((0x9D0 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_E_INPUT_MASK ((0x9D4 - GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_1_8V_MEM_SIZE 0x9D8
#define GPIO_1_8V_REG_ARRAY_SIZE ((GPIO_1_8V_MEM_SIZE - \
GPIO_1_8V_REG_OFFSET) >> 2)
#define GPIO_MAX_MEM_SIZE MAX(GPIO_3_6V_MEM_SIZE, GPIO_1_8V_MEM_SIZE)
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 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;
if (diff) {
for (gpio = 0; gpio < GPIOS_PER_REG; 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);
size_t offset = set * GPIOS_PER_SET + gpio;
qemu_set_irq(s->gpios[offset], !!(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 uint32_t aspeed_adjust_pin(AspeedGPIOState *s, uint32_t pin)
{
AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
/*
* The 2500 has a 4 pin gap in group AB and the 2400 has a 4 pin
* gap in group Y (and only four pins in AB but this is the last group so
* it doesn't matter).
*/
if (agc->gap && pin >= agc->gap) {
pin += GPIO_PIN_GAP_SIZE;
}
return pin;
}
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);
}
/*
* | 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 < GPIOS_PER_REG; 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_6v_gpios[GPIO_3_6V_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;
idx = offset >> 2;
if (idx >= GPIO_DEBOUNCE_TIME_1 && idx <= GPIO_DEBOUNCE_TIME_3) {
idx -= GPIO_DEBOUNCE_TIME_1;
return (uint64_t) s->debounce_regs[idx];
}
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%"
HWADDR_PRIx"\n", __func__, offset);
return 0;
}
set = &s->sets[reg->set_idx];
switch (reg->type) {
case gpio_reg_data_value:
return set->data_value;
case gpio_reg_direction:
return set->direction;
case gpio_reg_int_enable:
return set->int_enable;
case gpio_reg_int_sens_0:
return set->int_sens_0;
case gpio_reg_int_sens_1:
return set->int_sens_1;
case gpio_reg_int_sens_2:
return set->int_sens_2;
case gpio_reg_int_status:
return set->int_status;
case gpio_reg_reset_tolerant:
return set->reset_tol;
case gpio_reg_debounce_1:
return set->debounce_1;
case gpio_reg_debounce_2:
return set->debounce_2;
case gpio_reg_cmd_source_0:
return set->cmd_source_0;
case gpio_reg_cmd_source_1:
return set->cmd_source_1;
case gpio_reg_data_read:
return set->data_read;
case gpio_reg_input_mask:
return set->input_mask;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%"
HWADDR_PRIx"\n", __func__, offset);
return 0;
};
}
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;
idx = offset >> 2;
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%"
HWADDR_PRIx"\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);
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 / gap | 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%"
HWADDR_PRIx"\n", __func__, offset);
return;
}
aspeed_gpio_update(s, set, set->data_value);
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[] = {
[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[] = {
[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] = {0xffffff0f, 0x0fffff0f, {"Y", "Z", "AA", "AB"} },
[7] = {0x000000ff, 0x000000ff, {"AC"} },
};
static GPIOSetProperties ast2600_3_6v_set_props[] = {
[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] = {0xffff0000, 0x0fff0000, {"Y", "Z", "", ""} },
};
static GPIOSetProperties ast2600_1_8v_set_props[] = {
[0] = {0xffffffff, 0xffffffff, {"18A", "18B", "18C", "18D"} },
[1] = {0x0000000f, 0x0000000f, {"18E"} },
};
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);
int pin;
/* Interrupt parent line */
sysbus_init_irq(sbd, &s->irq);
/* Individual GPIOs */
for (pin = 0; pin < agc->nr_gpio_pins; pin++) {
sysbus_init_irq(sbd, &s->gpios[pin]);
}
memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_gpio_ops, s,
TYPE_ASPEED_GPIO, GPIO_MAX_MEM_SIZE);
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);
int pin;
for (pin = 0; pin < agc->nr_gpio_pins; pin++) {
char *name;
int set_idx = pin / GPIOS_PER_SET;
int pin_idx = aspeed_adjust_pin(s, pin) - (set_idx * GPIOS_PER_SET);
int group_idx = pin_idx >> GPIO_GROUP_SHIFT;
const GPIOSetProperties *props = &agc->props[set_idx];
name = g_strdup_printf("gpio%s%d", props->group_label[group_idx],
pin_idx % GPIOS_PER_GROUP);
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 = (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 = (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->gap = 196;
agc->reg_table = aspeed_3_6v_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->gap = 220;
agc->reg_table = aspeed_3_6v_gpios;
}
static void aspeed_gpio_ast2600_3_6v_class_init(ObjectClass *klass, void *data)
{
AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
agc->props = ast2600_3_6v_set_props;
agc->nr_gpio_pins = 208;
agc->nr_gpio_sets = 7;
agc->reg_table = aspeed_3_6v_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 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_6v_info = {
.name = TYPE_ASPEED_GPIO "-ast2600",
.parent = TYPE_ASPEED_GPIO,
.class_init = aspeed_gpio_ast2600_3_6v_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 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_6v_info);
type_register_static(&aspeed_gpio_ast2600_1_8v_info);
}
type_init(aspeed_gpio_register_types);
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