diff mbox series

[for-9.2,04/53] hw/gpio: Remove MAX7310 device

Message ID 20240903160751.4100218-5-peter.maydell@linaro.org
State New
Headers show
Series arm: Drop deprecated boards | expand

Commit Message

Peter Maydell Sept. 3, 2024, 4:07 p.m. UTC
The MAX7310 GPIO controller was used only by the XScale-based Zaurus
machine types.  Now they have been removed we can remove this device
model as well.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 MAINTAINERS         |   1 -
 hw/gpio/max7310.c   | 217 --------------------------------------------
 hw/gpio/Kconfig     |   4 -
 hw/gpio/meson.build |   1 -
 4 files changed, 223 deletions(-)
 delete mode 100644 hw/gpio/max7310.c
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 7873350f6ef..e9ce1e2e051 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -927,7 +927,6 @@  F: hw/arm/mainstone.c
 F: hw/arm/z2.c
 F: hw/*/pxa2xx*
 F: hw/display/tc6393xb.c
-F: hw/gpio/max7310.c
 F: hw/gpio/zaurus.c
 F: hw/misc/mst_fpga.c
 F: include/hw/arm/pxa.h
diff --git a/hw/gpio/max7310.c b/hw/gpio/max7310.c
deleted file mode 100644
index 86315714fbd..00000000000
--- a/hw/gpio/max7310.c
+++ /dev/null
@@ -1,217 +0,0 @@ 
-/*
- * MAX7310 8-port GPIO expansion chip.
- *
- * Copyright (c) 2006 Openedhand Ltd.
- * Written by Andrzej Zaborowski <balrog@zabor.org>
- *
- * This file is licensed under GNU GPL.
- */
-
-#include "qemu/osdep.h"
-#include "hw/i2c/i2c.h"
-#include "hw/irq.h"
-#include "migration/vmstate.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "qom/object.h"
-
-#define TYPE_MAX7310 "max7310"
-OBJECT_DECLARE_SIMPLE_TYPE(MAX7310State, MAX7310)
-
-struct MAX7310State {
-    I2CSlave parent_obj;
-
-    int i2c_command_byte;
-    int len;
-
-    uint8_t level;
-    uint8_t direction;
-    uint8_t polarity;
-    uint8_t status;
-    uint8_t command;
-    qemu_irq handler[8];
-    qemu_irq *gpio_in;
-};
-
-static void max7310_reset(DeviceState *dev)
-{
-    MAX7310State *s = MAX7310(dev);
-
-    s->level &= s->direction;
-    s->direction = 0xff;
-    s->polarity = 0xf0;
-    s->status = 0x01;
-    s->command = 0x00;
-}
-
-static uint8_t max7310_rx(I2CSlave *i2c)
-{
-    MAX7310State *s = MAX7310(i2c);
-
-    switch (s->command) {
-    case 0x00:  /* Input port */
-        return s->level ^ s->polarity;
-
-    case 0x01:  /* Output port */
-        return s->level & ~s->direction;
-
-    case 0x02:  /* Polarity inversion */
-        return s->polarity;
-
-    case 0x03:  /* Configuration */
-        return s->direction;
-
-    case 0x04:  /* Timeout */
-        return s->status;
-
-    case 0xff:  /* Reserved */
-        return 0xff;
-
-    default:
-        qemu_log_mask(LOG_UNIMP, "%s: Unsupported register 0x02%" PRIx8 "\n",
-                      __func__, s->command);
-        break;
-    }
-    return 0xff;
-}
-
-static int max7310_tx(I2CSlave *i2c, uint8_t data)
-{
-    MAX7310State *s = MAX7310(i2c);
-    uint8_t diff;
-    int line;
-
-    if (s->len ++ > 1) {
-#ifdef VERBOSE
-        printf("%s: message too long (%i bytes)\n", __func__, s->len);
-#endif
-        return 1;
-    }
-
-    if (s->i2c_command_byte) {
-        s->command = data;
-        s->i2c_command_byte = 0;
-        return 0;
-    }
-
-    switch (s->command) {
-    case 0x01:  /* Output port */
-        for (diff = (data ^ s->level) & ~s->direction; diff;
-                        diff &= ~(1 << line)) {
-            line = ctz32(diff);
-            if (s->handler[line])
-                qemu_set_irq(s->handler[line], (data >> line) & 1);
-        }
-        s->level = (s->level & s->direction) | (data & ~s->direction);
-        break;
-
-    case 0x02:  /* Polarity inversion */
-        s->polarity = data;
-        break;
-
-    case 0x03:  /* Configuration */
-        s->level &= ~(s->direction ^ data);
-        s->direction = data;
-        break;
-
-    case 0x04:  /* Timeout */
-        s->status = data;
-        break;
-
-    case 0x00:  /* Input port - ignore writes */
-        break;
-    default:
-        qemu_log_mask(LOG_UNIMP, "%s: Unsupported register 0x02%" PRIx8 "\n",
-                      __func__, s->command);
-        return 1;
-    }
-
-    return 0;
-}
-
-static int max7310_event(I2CSlave *i2c, enum i2c_event event)
-{
-    MAX7310State *s = MAX7310(i2c);
-    s->len = 0;
-
-    switch (event) {
-    case I2C_START_SEND:
-        s->i2c_command_byte = 1;
-        break;
-    case I2C_FINISH:
-#ifdef VERBOSE
-        if (s->len == 1)
-            printf("%s: message too short (%i bytes)\n", __func__, s->len);
-#endif
-        break;
-    default:
-        break;
-    }
-
-    return 0;
-}
-
-static const VMStateDescription vmstate_max7310 = {
-    .name = "max7310",
-    .version_id = 0,
-    .minimum_version_id = 0,
-    .fields = (const VMStateField[]) {
-        VMSTATE_INT32(i2c_command_byte, MAX7310State),
-        VMSTATE_INT32(len, MAX7310State),
-        VMSTATE_UINT8(level, MAX7310State),
-        VMSTATE_UINT8(direction, MAX7310State),
-        VMSTATE_UINT8(polarity, MAX7310State),
-        VMSTATE_UINT8(status, MAX7310State),
-        VMSTATE_UINT8(command, MAX7310State),
-        VMSTATE_I2C_SLAVE(parent_obj, MAX7310State),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static void max7310_gpio_set(void *opaque, int line, int level)
-{
-    MAX7310State *s = (MAX7310State *) opaque;
-    assert(line >= 0 && line < ARRAY_SIZE(s->handler));
-
-    if (level)
-        s->level |= s->direction & (1 << line);
-    else
-        s->level &= ~(s->direction & (1 << line));
-}
-
-/* MAX7310 is SMBus-compatible (can be used with only SMBus protocols),
- * but also accepts sequences that are not SMBus so return an I2C device.  */
-static void max7310_realize(DeviceState *dev, Error **errp)
-{
-    MAX7310State *s = MAX7310(dev);
-
-    qdev_init_gpio_in(dev, max7310_gpio_set, ARRAY_SIZE(s->handler));
-    qdev_init_gpio_out(dev, s->handler, ARRAY_SIZE(s->handler));
-}
-
-static void max7310_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
-
-    dc->realize = max7310_realize;
-    k->event = max7310_event;
-    k->recv = max7310_rx;
-    k->send = max7310_tx;
-    dc->reset = max7310_reset;
-    dc->vmsd = &vmstate_max7310;
-}
-
-static const TypeInfo max7310_info = {
-    .name          = TYPE_MAX7310,
-    .parent        = TYPE_I2C_SLAVE,
-    .instance_size = sizeof(MAX7310State),
-    .class_init    = max7310_class_init,
-};
-
-static void max7310_register_types(void)
-{
-    type_register_static(&max7310_info);
-}
-
-type_init(max7310_register_types)
diff --git a/hw/gpio/Kconfig b/hw/gpio/Kconfig
index 19c97cc823f..c9c340f6eb4 100644
--- a/hw/gpio/Kconfig
+++ b/hw/gpio/Kconfig
@@ -1,7 +1,3 @@ 
-config MAX7310
-    bool
-    depends on I2C
-
 config PL061
     bool
 
diff --git a/hw/gpio/meson.build b/hw/gpio/meson.build
index a7495d196ae..010ad3bf5a7 100644
--- a/hw/gpio/meson.build
+++ b/hw/gpio/meson.build
@@ -1,7 +1,6 @@ 
 system_ss.add(when: 'CONFIG_GPIO_KEY', if_true: files('gpio_key.c'))
 system_ss.add(when: 'CONFIG_GPIO_MPC8XXX', if_true: files('mpc8xxx.c'))
 system_ss.add(when: 'CONFIG_GPIO_PWR', if_true: files('gpio_pwr.c'))
-system_ss.add(when: 'CONFIG_MAX7310', if_true: files('max7310.c'))
 system_ss.add(when: 'CONFIG_PCA9552', if_true: files('pca9552.c'))
 system_ss.add(when: 'CONFIG_PCA9554', if_true: files('pca9554.c'))
 system_ss.add(when: 'CONFIG_PL061', if_true: files('pl061.c'))