diff mbox series

[for-9.2,03/53] hw/adc: Remove MAX111X device

Message ID 20240903160751.4100218-4-peter.maydell@linaro.org
State Superseded
Headers show
Series arm: Drop deprecated boards | expand

Commit Message

Peter Maydell Sept. 3, 2024, 4:07 p.m. UTC
The MAX111X ADC device was used only by the XScale-based
Zaurus machine types. Now they have all been removed, we can
drop this device model too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 MAINTAINERS              |   2 -
 include/hw/adc/max111x.h |  56 ----------
 hw/adc/max111x.c         | 236 ---------------------------------------
 hw/adc/Kconfig           |   3 -
 hw/adc/meson.build       |   1 -
 5 files changed, 298 deletions(-)
 delete mode 100644 include/hw/adc/max111x.h
 delete mode 100644 hw/adc/max111x.c
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 4f00c7a3427..7873350f6ef 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -930,8 +930,6 @@  F: hw/display/tc6393xb.c
 F: hw/gpio/max7310.c
 F: hw/gpio/zaurus.c
 F: hw/misc/mst_fpga.c
-F: hw/adc/max111x.c
-F: include/hw/adc/max111x.h
 F: include/hw/arm/pxa.h
 F: include/hw/arm/sharpsl.h
 F: include/hw/display/tc6393xb.h
diff --git a/include/hw/adc/max111x.h b/include/hw/adc/max111x.h
deleted file mode 100644
index beff59c815d..00000000000
--- a/include/hw/adc/max111x.h
+++ /dev/null
@@ -1,56 +0,0 @@ 
-/*
- * Maxim MAX1110/1111 ADC chip emulation.
- *
- * Copyright (c) 2006 Openedhand Ltd.
- * Written by Andrzej Zaborowski <balrog@zabor.org>
- *
- * This code is licensed under the GNU GPLv2.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#ifndef HW_MISC_MAX111X_H
-#define HW_MISC_MAX111X_H
-
-#include "hw/ssi/ssi.h"
-#include "qom/object.h"
-
-/*
- * This is a model of the Maxim MAX1110/1111 ADC chip, which for QEMU
- * is an SSI slave device. It has either 4 (max1110) or 8 (max1111)
- * 8-bit ADC channels.
- *
- * QEMU interface:
- *  + GPIO inputs 0..3 (for max1110) or 0..7 (for max1111): set the value
- *    of each ADC input, as an unsigned 8-bit value
- *  + GPIO output 0: interrupt line
- *  + Properties "input0" to "input3" (max1110) or "input0" to "input7"
- *    (max1111): initial reset values for ADC inputs.
- *
- * Known bugs:
- *  + the interrupt line is not correctly implemented, and will never
- *    be lowered once it has been asserted.
- */
-struct MAX111xState {
-    SSIPeripheral parent_obj;
-
-    qemu_irq interrupt;
-    /* Values of inputs at system reset (settable by QOM property) */
-    uint8_t reset_input[8];
-
-    uint8_t tb1, rb2, rb3;
-    int cycle;
-
-    uint8_t input[8];
-    int inputs, com;
-};
-
-#define TYPE_MAX_111X "max111x"
-
-OBJECT_DECLARE_SIMPLE_TYPE(MAX111xState, MAX_111X)
-
-#define TYPE_MAX_1110 "max1110"
-#define TYPE_MAX_1111 "max1111"
-
-#endif
diff --git a/hw/adc/max111x.c b/hw/adc/max111x.c
deleted file mode 100644
index 957d177e1ce..00000000000
--- a/hw/adc/max111x.c
+++ /dev/null
@@ -1,236 +0,0 @@ 
-/*
- * Maxim MAX1110/1111 ADC chip emulation.
- *
- * Copyright (c) 2006 Openedhand Ltd.
- * Written by Andrzej Zaborowski <balrog@zabor.org>
- *
- * This code is licensed under the GNU GPLv2.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-#include "hw/adc/max111x.h"
-#include "hw/irq.h"
-#include "migration/vmstate.h"
-#include "qemu/module.h"
-#include "hw/qdev-properties.h"
-
-/* Control-byte bitfields */
-#define CB_PD0		(1 << 0)
-#define CB_PD1		(1 << 1)
-#define CB_SGL		(1 << 2)
-#define CB_UNI		(1 << 3)
-#define CB_SEL0		(1 << 4)
-#define CB_SEL1		(1 << 5)
-#define CB_SEL2		(1 << 6)
-#define CB_START	(1 << 7)
-
-#define CHANNEL_NUM(v, b0, b1, b2)	\
-                        ((((v) >> (2 + (b0))) & 4) |	\
-                         (((v) >> (3 + (b1))) & 2) |	\
-                         (((v) >> (4 + (b2))) & 1))
-
-static uint32_t max111x_read(MAX111xState *s)
-{
-    if (!s->tb1)
-        return 0;
-
-    switch (s->cycle ++) {
-    case 1:
-        return s->rb2;
-    case 2:
-        return s->rb3;
-    }
-
-    return 0;
-}
-
-/* Interpret a control-byte */
-static void max111x_write(MAX111xState *s, uint32_t value)
-{
-    int measure, chan;
-
-    /* Ignore the value if START bit is zero */
-    if (!(value & CB_START))
-        return;
-
-    s->cycle = 0;
-
-    if (!(value & CB_PD1)) {
-        s->tb1 = 0;
-        return;
-    }
-
-    s->tb1 = value;
-
-    if (s->inputs == 8)
-        chan = CHANNEL_NUM(value, 1, 0, 2);
-    else
-        chan = CHANNEL_NUM(value & ~CB_SEL0, 0, 1, 2);
-
-    if (value & CB_SGL)
-        measure = s->input[chan] - s->com;
-    else
-        measure = s->input[chan] - s->input[chan ^ 1];
-
-    if (!(value & CB_UNI))
-        measure ^= 0x80;
-
-    s->rb2 = (measure >> 2) & 0x3f;
-    s->rb3 = (measure << 6) & 0xc0;
-
-    /* FIXME: When should the IRQ be lowered?  */
-    qemu_irq_raise(s->interrupt);
-}
-
-static uint32_t max111x_transfer(SSIPeripheral *dev, uint32_t value)
-{
-    MAX111xState *s = MAX_111X(dev);
-    max111x_write(s, value);
-    return max111x_read(s);
-}
-
-static const VMStateDescription vmstate_max111x = {
-    .name = "max111x",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (const VMStateField[]) {
-        VMSTATE_SSI_PERIPHERAL(parent_obj, MAX111xState),
-        VMSTATE_UINT8(tb1, MAX111xState),
-        VMSTATE_UINT8(rb2, MAX111xState),
-        VMSTATE_UINT8(rb3, MAX111xState),
-        VMSTATE_INT32_EQUAL(inputs, MAX111xState, NULL),
-        VMSTATE_INT32(com, MAX111xState),
-        VMSTATE_ARRAY_INT32_UNSAFE(input, MAX111xState, inputs,
-                                   vmstate_info_uint8, uint8_t),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static void max111x_input_set(void *opaque, int line, int value)
-{
-    MAX111xState *s = MAX_111X(opaque);
-
-    assert(line >= 0 && line < s->inputs);
-    s->input[line] = value;
-}
-
-static int max111x_init(SSIPeripheral *d, int inputs)
-{
-    DeviceState *dev = DEVICE(d);
-    MAX111xState *s = MAX_111X(dev);
-
-    qdev_init_gpio_out(dev, &s->interrupt, 1);
-    qdev_init_gpio_in(dev, max111x_input_set, inputs);
-
-    s->inputs = inputs;
-
-    return 0;
-}
-
-static void max1110_realize(SSIPeripheral *dev, Error **errp)
-{
-    max111x_init(dev, 8);
-}
-
-static void max1111_realize(SSIPeripheral *dev, Error **errp)
-{
-    max111x_init(dev, 4);
-}
-
-static void max111x_reset(DeviceState *dev)
-{
-    MAX111xState *s = MAX_111X(dev);
-    int i;
-
-    for (i = 0; i < s->inputs; i++) {
-        s->input[i] = s->reset_input[i];
-    }
-    s->com = 0;
-    s->tb1 = 0;
-    s->rb2 = 0;
-    s->rb3 = 0;
-    s->cycle = 0;
-}
-
-static Property max1110_properties[] = {
-    /* Reset values for ADC inputs */
-    DEFINE_PROP_UINT8("input0", MAX111xState, reset_input[0], 0xf0),
-    DEFINE_PROP_UINT8("input1", MAX111xState, reset_input[1], 0xe0),
-    DEFINE_PROP_UINT8("input2", MAX111xState, reset_input[2], 0xd0),
-    DEFINE_PROP_UINT8("input3", MAX111xState, reset_input[3], 0xc0),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static Property max1111_properties[] = {
-    /* Reset values for ADC inputs */
-    DEFINE_PROP_UINT8("input0", MAX111xState, reset_input[0], 0xf0),
-    DEFINE_PROP_UINT8("input1", MAX111xState, reset_input[1], 0xe0),
-    DEFINE_PROP_UINT8("input2", MAX111xState, reset_input[2], 0xd0),
-    DEFINE_PROP_UINT8("input3", MAX111xState, reset_input[3], 0xc0),
-    DEFINE_PROP_UINT8("input4", MAX111xState, reset_input[4], 0xb0),
-    DEFINE_PROP_UINT8("input5", MAX111xState, reset_input[5], 0xa0),
-    DEFINE_PROP_UINT8("input6", MAX111xState, reset_input[6], 0x90),
-    DEFINE_PROP_UINT8("input7", MAX111xState, reset_input[7], 0x80),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static void max111x_class_init(ObjectClass *klass, void *data)
-{
-    SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass);
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    k->transfer = max111x_transfer;
-    dc->reset = max111x_reset;
-    dc->vmsd = &vmstate_max111x;
-    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-}
-
-static const TypeInfo max111x_info = {
-    .name          = TYPE_MAX_111X,
-    .parent        = TYPE_SSI_PERIPHERAL,
-    .instance_size = sizeof(MAX111xState),
-    .class_init    = max111x_class_init,
-    .abstract      = true,
-};
-
-static void max1110_class_init(ObjectClass *klass, void *data)
-{
-    SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass);
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    k->realize = max1110_realize;
-    device_class_set_props(dc, max1110_properties);
-}
-
-static const TypeInfo max1110_info = {
-    .name          = TYPE_MAX_1110,
-    .parent        = TYPE_MAX_111X,
-    .class_init    = max1110_class_init,
-};
-
-static void max1111_class_init(ObjectClass *klass, void *data)
-{
-    SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass);
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    k->realize = max1111_realize;
-    device_class_set_props(dc, max1111_properties);
-}
-
-static const TypeInfo max1111_info = {
-    .name          = TYPE_MAX_1111,
-    .parent        = TYPE_MAX_111X,
-    .class_init    = max1111_class_init,
-};
-
-static void max111x_register_types(void)
-{
-    type_register_static(&max111x_info);
-    type_register_static(&max1110_info);
-    type_register_static(&max1111_info);
-}
-
-type_init(max111x_register_types)
diff --git a/hw/adc/Kconfig b/hw/adc/Kconfig
index a825bd3d343..25d2229fb83 100644
--- a/hw/adc/Kconfig
+++ b/hw/adc/Kconfig
@@ -1,5 +1,2 @@ 
 config STM32F2XX_ADC
     bool
-
-config MAX111X
-    bool
diff --git a/hw/adc/meson.build b/hw/adc/meson.build
index a4f85b7d468..7f7acc16196 100644
--- a/hw/adc/meson.build
+++ b/hw/adc/meson.build
@@ -2,4 +2,3 @@  system_ss.add(when: 'CONFIG_STM32F2XX_ADC', if_true: files('stm32f2xx_adc.c'))
 system_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files('aspeed_adc.c'))
 system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_adc.c'))
 system_ss.add(when: 'CONFIG_ZYNQ', if_true: files('zynq-xadc.c'))
-system_ss.add(when: 'CONFIG_MAX111X', if_true: files('max111x.c'))