L: qemu-ppc@nongnu.org
L: qemu-arm@nongnu.org
S: Odd Fixes
-F: hw/misc/pca955*.c
-F: include/hw/misc/pca955*.h
+F: hw/gpio/pca955*.c
+F: include/hw/gpio/pca955*.h
virtex_ml507
M: Edgar E. Iglesias <edgar.iglesias@gmail.com>
#include "hw/block/flash.h"
#include "hw/i2c/i2c_mux_pca954x.h"
#include "hw/i2c/smbus_eeprom.h"
-#include "hw/misc/pca9552.h"
+#include "hw/gpio/pca9552.h"
#include "hw/nvram/eeprom_at24c.h"
#include "hw/sensor/tmp105.h"
#include "hw/misc/led.h"
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'))
system_ss.add(when: 'CONFIG_ZAURUS', if_true: files('zaurus.c'))
--- /dev/null
+/*
+ * PCA9552 I2C LED blinker
+ *
+ * https://www.nxp.com/docs/en/application-note/AN264.pdf
+ *
+ * Copyright (c) 2017-2018, IBM Corporation.
+ * Copyright (c) 2020 Philippe Mathieu-Daudé
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu/bitops.h"
+#include "hw/qdev-properties.h"
+#include "hw/gpio/pca9552.h"
+#include "hw/gpio/pca9552_regs.h"
+#include "hw/irq.h"
+#include "migration/vmstate.h"
+#include "qapi/error.h"
+#include "qapi/visitor.h"
+#include "trace.h"
+#include "qom/object.h"
+
+struct PCA955xClass {
+ /*< private >*/
+ I2CSlaveClass parent_class;
+ /*< public >*/
+
+ uint8_t pin_count;
+ uint8_t max_reg;
+};
+typedef struct PCA955xClass PCA955xClass;
+
+DECLARE_CLASS_CHECKERS(PCA955xClass, PCA955X,
+ TYPE_PCA955X)
+/*
+ * Note: The LED_ON and LED_OFF configuration values for the PCA955X
+ * chips are the reverse of the PCA953X family of chips.
+ */
+#define PCA9552_LED_ON 0x0
+#define PCA9552_LED_OFF 0x1
+#define PCA9552_LED_PWM0 0x2
+#define PCA9552_LED_PWM1 0x3
+#define PCA9552_PIN_LOW 0x0
+#define PCA9552_PIN_HIZ 0x1
+
+static const char *led_state[] = {"on", "off", "pwm0", "pwm1"};
+
+static uint8_t pca955x_pin_get_config(PCA955xState *s, int pin)
+{
+ uint8_t reg = PCA9552_LS0 + (pin / 4);
+ uint8_t shift = (pin % 4) << 1;
+
+ return extract32(s->regs[reg], shift, 2);
+}
+
+/* Return INPUT status (bit #N belongs to GPIO #N) */
+static uint16_t pca955x_pins_get_status(PCA955xState *s)
+{
+ return (s->regs[PCA9552_INPUT1] << 8) | s->regs[PCA9552_INPUT0];
+}
+
+static void pca955x_display_pins_status(PCA955xState *s,
+ uint16_t previous_pins_status)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(s);
+ uint16_t pins_status, pins_changed;
+ int i;
+
+ pins_status = pca955x_pins_get_status(s);
+ pins_changed = previous_pins_status ^ pins_status;
+ if (!pins_changed) {
+ return;
+ }
+ if (trace_event_get_state_backends(TRACE_PCA955X_GPIO_STATUS)) {
+ char *buf = g_newa(char, k->pin_count + 1);
+
+ for (i = 0; i < k->pin_count; i++) {
+ if (extract32(pins_status, i, 1)) {
+ buf[i] = '*';
+ } else {
+ buf[i] = '.';
+ }
+ }
+ buf[i] = '\0';
+ trace_pca955x_gpio_status(s->description, buf);
+ }
+ if (trace_event_get_state_backends(TRACE_PCA955X_GPIO_CHANGE)) {
+ for (i = 0; i < k->pin_count; i++) {
+ if (extract32(pins_changed, i, 1)) {
+ unsigned new_state = extract32(pins_status, i, 1);
+
+ /*
+ * We display the state using the PCA logic ("active-high").
+ * This is not the state of the LED, which signal might be
+ * wired "active-low" on the board.
+ */
+ trace_pca955x_gpio_change(s->description, i,
+ !new_state, new_state);
+ }
+ }
+ }
+}
+
+static void pca955x_update_pin_input(PCA955xState *s)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(s);
+ int i;
+
+ for (i = 0; i < k->pin_count; i++) {
+ uint8_t input_reg = PCA9552_INPUT0 + (i / 8);
+ uint8_t bit_mask = 1 << (i % 8);
+ uint8_t config = pca955x_pin_get_config(s, i);
+ uint8_t old_value = s->regs[input_reg] & bit_mask;
+ uint8_t new_value;
+
+ switch (config) {
+ case PCA9552_LED_ON:
+ /* Pin is set to 0V to turn on LED */
+ s->regs[input_reg] &= ~bit_mask;
+ break;
+ case PCA9552_LED_OFF:
+ /*
+ * Pin is set to Hi-Z to turn off LED and
+ * pullup sets it to a logical 1 unless
+ * external device drives it low.
+ */
+ if (s->ext_state[i] == PCA9552_PIN_LOW) {
+ s->regs[input_reg] &= ~bit_mask;
+ } else {
+ s->regs[input_reg] |= bit_mask;
+ }
+ break;
+ case PCA9552_LED_PWM0:
+ case PCA9552_LED_PWM1:
+ /* TODO */
+ default:
+ break;
+ }
+
+ /* update irq state only if pin state changed */
+ new_value = s->regs[input_reg] & bit_mask;
+ if (new_value != old_value) {
+ qemu_set_irq(s->gpio_out[i], !!new_value);
+ }
+ }
+}
+
+static uint8_t pca955x_read(PCA955xState *s, uint8_t reg)
+{
+ switch (reg) {
+ case PCA9552_INPUT0:
+ case PCA9552_INPUT1:
+ case PCA9552_PSC0:
+ case PCA9552_PWM0:
+ case PCA9552_PSC1:
+ case PCA9552_PWM1:
+ case PCA9552_LS0:
+ case PCA9552_LS1:
+ case PCA9552_LS2:
+ case PCA9552_LS3:
+ return s->regs[reg];
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected read to register %d\n",
+ __func__, reg);
+ return 0xFF;
+ }
+}
+
+static void pca955x_write(PCA955xState *s, uint8_t reg, uint8_t data)
+{
+ uint16_t pins_status;
+
+ switch (reg) {
+ case PCA9552_PSC0:
+ case PCA9552_PWM0:
+ case PCA9552_PSC1:
+ case PCA9552_PWM1:
+ s->regs[reg] = data;
+ break;
+
+ case PCA9552_LS0:
+ case PCA9552_LS1:
+ case PCA9552_LS2:
+ case PCA9552_LS3:
+ pins_status = pca955x_pins_get_status(s);
+ s->regs[reg] = data;
+ pca955x_update_pin_input(s);
+ pca955x_display_pins_status(s, pins_status);
+ break;
+
+ case PCA9552_INPUT0:
+ case PCA9552_INPUT1:
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected write to register %d\n",
+ __func__, reg);
+ }
+}
+
+/*
+ * When Auto-Increment is on, the register address is incremented
+ * after each byte is sent to or received by the device. The index
+ * rollovers to 0 when the maximum register address is reached.
+ */
+static void pca955x_autoinc(PCA955xState *s)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(s);
+
+ if (s->pointer != 0xFF && s->pointer & PCA9552_AUTOINC) {
+ uint8_t reg = s->pointer & 0xf;
+
+ reg = (reg + 1) % (k->max_reg + 1);
+ s->pointer = reg | PCA9552_AUTOINC;
+ }
+}
+
+static uint8_t pca955x_recv(I2CSlave *i2c)
+{
+ PCA955xState *s = PCA955X(i2c);
+ uint8_t ret;
+
+ ret = pca955x_read(s, s->pointer & 0xf);
+
+ /*
+ * From the Specs:
+ *
+ * Important Note: When a Read sequence is initiated and the
+ * AI bit is set to Logic Level 1, the Read Sequence MUST
+ * start by a register different from 0.
+ *
+ * I don't know what should be done in this case, so throw an
+ * error.
+ */
+ if (s->pointer == PCA9552_AUTOINC) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Autoincrement read starting with register 0\n",
+ __func__);
+ }
+
+ pca955x_autoinc(s);
+
+ return ret;
+}
+
+static int pca955x_send(I2CSlave *i2c, uint8_t data)
+{
+ PCA955xState *s = PCA955X(i2c);
+
+ /* First byte sent by is the register address */
+ if (s->len == 0) {
+ s->pointer = data;
+ s->len++;
+ } else {
+ pca955x_write(s, s->pointer & 0xf, data);
+
+ pca955x_autoinc(s);
+ }
+
+ return 0;
+}
+
+static int pca955x_event(I2CSlave *i2c, enum i2c_event event)
+{
+ PCA955xState *s = PCA955X(i2c);
+
+ s->len = 0;
+ return 0;
+}
+
+static void pca955x_get_led(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(obj);
+ PCA955xState *s = PCA955X(obj);
+ int led, rc, reg;
+ uint8_t state;
+
+ rc = sscanf(name, "led%2d", &led);
+ if (rc != 1) {
+ error_setg(errp, "%s: error reading %s", __func__, name);
+ return;
+ }
+ if (led < 0 || led > k->pin_count) {
+ error_setg(errp, "%s invalid led %s", __func__, name);
+ return;
+ }
+ /*
+ * Get the LSx register as the qom interface should expose the device
+ * state, not the modeled 'input line' behaviour which would come from
+ * reading the INPUTx reg
+ */
+ reg = PCA9552_LS0 + led / 4;
+ state = (pca955x_read(s, reg) >> ((led % 4) * 2)) & 0x3;
+ visit_type_str(v, name, (char **)&led_state[state], errp);
+}
+
+/*
+ * Return an LED selector register value based on an existing one, with
+ * the appropriate 2-bit state value set for the given LED number (0-3).
+ */
+static inline uint8_t pca955x_ledsel(uint8_t oldval, int led_num, int state)
+{
+ return (oldval & (~(0x3 << (led_num << 1)))) |
+ ((state & 0x3) << (led_num << 1));
+}
+
+static void pca955x_set_led(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(obj);
+ PCA955xState *s = PCA955X(obj);
+ int led, rc, reg, val;
+ uint8_t state;
+ char *state_str;
+
+ if (!visit_type_str(v, name, &state_str, errp)) {
+ return;
+ }
+ rc = sscanf(name, "led%2d", &led);
+ if (rc != 1) {
+ error_setg(errp, "%s: error reading %s", __func__, name);
+ return;
+ }
+ if (led < 0 || led > k->pin_count) {
+ error_setg(errp, "%s invalid led %s", __func__, name);
+ return;
+ }
+
+ for (state = 0; state < ARRAY_SIZE(led_state); state++) {
+ if (!strcmp(state_str, led_state[state])) {
+ break;
+ }
+ }
+ if (state >= ARRAY_SIZE(led_state)) {
+ error_setg(errp, "%s invalid led state %s", __func__, state_str);
+ return;
+ }
+
+ reg = PCA9552_LS0 + led / 4;
+ val = pca955x_read(s, reg);
+ val = pca955x_ledsel(val, led % 4, state);
+ pca955x_write(s, reg, val);
+}
+
+static const VMStateDescription pca9552_vmstate = {
+ .name = "PCA9552",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (const VMStateField[]) {
+ VMSTATE_UINT8(len, PCA955xState),
+ VMSTATE_UINT8(pointer, PCA955xState),
+ VMSTATE_UINT8_ARRAY(regs, PCA955xState, PCA955X_NR_REGS),
+ VMSTATE_UINT8_ARRAY(ext_state, PCA955xState, PCA955X_PIN_COUNT_MAX),
+ VMSTATE_I2C_SLAVE(i2c, PCA955xState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void pca9552_reset(DeviceState *dev)
+{
+ PCA955xState *s = PCA955X(dev);
+
+ s->regs[PCA9552_PSC0] = 0xFF;
+ s->regs[PCA9552_PWM0] = 0x80;
+ s->regs[PCA9552_PSC1] = 0xFF;
+ s->regs[PCA9552_PWM1] = 0x80;
+ s->regs[PCA9552_LS0] = 0x55; /* all OFF */
+ s->regs[PCA9552_LS1] = 0x55;
+ s->regs[PCA9552_LS2] = 0x55;
+ s->regs[PCA9552_LS3] = 0x55;
+
+ memset(s->ext_state, PCA9552_PIN_HIZ, PCA955X_PIN_COUNT_MAX);
+ pca955x_update_pin_input(s);
+
+ s->pointer = 0xFF;
+ s->len = 0;
+}
+
+static void pca955x_initfn(Object *obj)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(obj);
+ int led;
+
+ assert(k->pin_count <= PCA955X_PIN_COUNT_MAX);
+ for (led = 0; led < k->pin_count; led++) {
+ char *name;
+
+ name = g_strdup_printf("led%d", led);
+ object_property_add(obj, name, "bool", pca955x_get_led, pca955x_set_led,
+ NULL, NULL);
+ g_free(name);
+ }
+}
+
+static void pca955x_set_ext_state(PCA955xState *s, int pin, int level)
+{
+ if (s->ext_state[pin] != level) {
+ uint16_t pins_status = pca955x_pins_get_status(s);
+ s->ext_state[pin] = level;
+ pca955x_update_pin_input(s);
+ pca955x_display_pins_status(s, pins_status);
+ }
+}
+
+static void pca955x_gpio_in_handler(void *opaque, int pin, int level)
+{
+
+ PCA955xState *s = PCA955X(opaque);
+ PCA955xClass *k = PCA955X_GET_CLASS(s);
+
+ assert((pin >= 0) && (pin < k->pin_count));
+ pca955x_set_ext_state(s, pin, level);
+}
+
+static void pca955x_realize(DeviceState *dev, Error **errp)
+{
+ PCA955xClass *k = PCA955X_GET_CLASS(dev);
+ PCA955xState *s = PCA955X(dev);
+
+ if (!s->description) {
+ s->description = g_strdup("pca-unspecified");
+ }
+
+ qdev_init_gpio_out(dev, s->gpio_out, k->pin_count);
+ qdev_init_gpio_in(dev, pca955x_gpio_in_handler, k->pin_count);
+}
+
+static Property pca955x_properties[] = {
+ DEFINE_PROP_STRING("description", PCA955xState, description),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pca955x_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
+
+ k->event = pca955x_event;
+ k->recv = pca955x_recv;
+ k->send = pca955x_send;
+ dc->realize = pca955x_realize;
+ device_class_set_props(dc, pca955x_properties);
+}
+
+static const TypeInfo pca955x_info = {
+ .name = TYPE_PCA955X,
+ .parent = TYPE_I2C_SLAVE,
+ .instance_init = pca955x_initfn,
+ .instance_size = sizeof(PCA955xState),
+ .class_init = pca955x_class_init,
+ .class_size = sizeof(PCA955xClass),
+ .abstract = true,
+};
+
+static void pca9552_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ PCA955xClass *pc = PCA955X_CLASS(oc);
+
+ dc->reset = pca9552_reset;
+ dc->vmsd = &pca9552_vmstate;
+ pc->max_reg = PCA9552_LS3;
+ pc->pin_count = 16;
+}
+
+static const TypeInfo pca9552_info = {
+ .name = TYPE_PCA9552,
+ .parent = TYPE_PCA955X,
+ .class_init = pca9552_class_init,
+};
+
+static void pca955x_register_types(void)
+{
+ type_register_static(&pca955x_info);
+ type_register_static(&pca9552_info);
+}
+
+type_init(pca955x_register_types)
--- /dev/null
+/*
+ * PCA9554 I/O port
+ *
+ * Copyright (c) 2023, IBM Corporation.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu/bitops.h"
+#include "hw/qdev-properties.h"
+#include "hw/gpio/pca9554.h"
+#include "hw/gpio/pca9554_regs.h"
+#include "hw/irq.h"
+#include "migration/vmstate.h"
+#include "qapi/error.h"
+#include "qapi/visitor.h"
+#include "trace.h"
+#include "qom/object.h"
+
+struct PCA9554Class {
+ /*< private >*/
+ I2CSlaveClass parent_class;
+ /*< public >*/
+};
+typedef struct PCA9554Class PCA9554Class;
+
+DECLARE_CLASS_CHECKERS(PCA9554Class, PCA9554,
+ TYPE_PCA9554)
+
+#define PCA9554_PIN_LOW 0x0
+#define PCA9554_PIN_HIZ 0x1
+
+static const char *pin_state[] = {"low", "high"};
+
+static void pca9554_update_pin_input(PCA9554State *s)
+{
+ int i;
+ uint8_t config = s->regs[PCA9554_CONFIG];
+ uint8_t output = s->regs[PCA9554_OUTPUT];
+ uint8_t internal_state = config | output;
+
+ for (i = 0; i < PCA9554_PIN_COUNT; i++) {
+ uint8_t bit_mask = 1 << i;
+ uint8_t internal_pin_state = (internal_state >> i) & 0x1;
+ uint8_t old_value = s->regs[PCA9554_INPUT] & bit_mask;
+ uint8_t new_value;
+
+ switch (internal_pin_state) {
+ case PCA9554_PIN_LOW:
+ s->regs[PCA9554_INPUT] &= ~bit_mask;
+ break;
+ case PCA9554_PIN_HIZ:
+ /*
+ * pullup sets it to a logical 1 unless
+ * external device drives it low.
+ */
+ if (s->ext_state[i] == PCA9554_PIN_LOW) {
+ s->regs[PCA9554_INPUT] &= ~bit_mask;
+ } else {
+ s->regs[PCA9554_INPUT] |= bit_mask;
+ }
+ break;
+ default:
+ break;
+ }
+
+ /* update irq state only if pin state changed */
+ new_value = s->regs[PCA9554_INPUT] & bit_mask;
+ if (new_value != old_value) {
+ if (new_value) {
+ /* changed from 0 to 1 */
+ qemu_set_irq(s->gpio_out[i], 1);
+ } else {
+ /* changed from 1 to 0 */
+ qemu_set_irq(s->gpio_out[i], 0);
+ }
+ }
+ }
+}
+
+static uint8_t pca9554_read(PCA9554State *s, uint8_t reg)
+{
+ switch (reg) {
+ case PCA9554_INPUT:
+ return s->regs[PCA9554_INPUT] ^ s->regs[PCA9554_POLARITY];
+ case PCA9554_OUTPUT:
+ case PCA9554_POLARITY:
+ case PCA9554_CONFIG:
+ return s->regs[reg];
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected read to register %d\n",
+ __func__, reg);
+ return 0xFF;
+ }
+}
+
+static void pca9554_write(PCA9554State *s, uint8_t reg, uint8_t data)
+{
+ switch (reg) {
+ case PCA9554_OUTPUT:
+ case PCA9554_CONFIG:
+ s->regs[reg] = data;
+ pca9554_update_pin_input(s);
+ break;
+ case PCA9554_POLARITY:
+ s->regs[reg] = data;
+ break;
+ case PCA9554_INPUT:
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected write to register %d\n",
+ __func__, reg);
+ }
+}
+
+static uint8_t pca9554_recv(I2CSlave *i2c)
+{
+ PCA9554State *s = PCA9554(i2c);
+ uint8_t ret;
+
+ ret = pca9554_read(s, s->pointer & 0x3);
+
+ return ret;
+}
+
+static int pca9554_send(I2CSlave *i2c, uint8_t data)
+{
+ PCA9554State *s = PCA9554(i2c);
+
+ /* First byte sent by is the register address */
+ if (s->len == 0) {
+ s->pointer = data;
+ s->len++;
+ } else {
+ pca9554_write(s, s->pointer & 0x3, data);
+ }
+
+ return 0;
+}
+
+static int pca9554_event(I2CSlave *i2c, enum i2c_event event)
+{
+ PCA9554State *s = PCA9554(i2c);
+
+ s->len = 0;
+ return 0;
+}
+
+static void pca9554_get_pin(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCA9554State *s = PCA9554(obj);
+ int pin, rc;
+ uint8_t state;
+
+ rc = sscanf(name, "pin%2d", &pin);
+ if (rc != 1) {
+ error_setg(errp, "%s: error reading %s", __func__, name);
+ return;
+ }
+ if (pin < 0 || pin > PCA9554_PIN_COUNT) {
+ error_setg(errp, "%s invalid pin %s", __func__, name);
+ return;
+ }
+
+ state = pca9554_read(s, PCA9554_CONFIG);
+ state |= pca9554_read(s, PCA9554_OUTPUT);
+ state = (state >> pin) & 0x1;
+ visit_type_str(v, name, (char **)&pin_state[state], errp);
+}
+
+static void pca9554_set_pin(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCA9554State *s = PCA9554(obj);
+ int pin, rc, val;
+ uint8_t state, mask;
+ char *state_str;
+
+ if (!visit_type_str(v, name, &state_str, errp)) {
+ return;
+ }
+ rc = sscanf(name, "pin%2d", &pin);
+ if (rc != 1) {
+ error_setg(errp, "%s: error reading %s", __func__, name);
+ return;
+ }
+ if (pin < 0 || pin > PCA9554_PIN_COUNT) {
+ error_setg(errp, "%s invalid pin %s", __func__, name);
+ return;
+ }
+
+ for (state = 0; state < ARRAY_SIZE(pin_state); state++) {
+ if (!strcmp(state_str, pin_state[state])) {
+ break;
+ }
+ }
+ if (state >= ARRAY_SIZE(pin_state)) {
+ error_setg(errp, "%s invalid pin state %s", __func__, state_str);
+ return;
+ }
+
+ /* First, modify the output register bit */
+ val = pca9554_read(s, PCA9554_OUTPUT);
+ mask = 0x1 << pin;
+ if (state == PCA9554_PIN_LOW) {
+ val &= ~(mask);
+ } else {
+ val |= mask;
+ }
+ pca9554_write(s, PCA9554_OUTPUT, val);
+
+ /* Then, clear the config register bit for output mode */
+ val = pca9554_read(s, PCA9554_CONFIG);
+ val &= ~mask;
+ pca9554_write(s, PCA9554_CONFIG, val);
+}
+
+static const VMStateDescription pca9554_vmstate = {
+ .name = "PCA9554",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(len, PCA9554State),
+ VMSTATE_UINT8(pointer, PCA9554State),
+ VMSTATE_UINT8_ARRAY(regs, PCA9554State, PCA9554_NR_REGS),
+ VMSTATE_UINT8_ARRAY(ext_state, PCA9554State, PCA9554_PIN_COUNT),
+ VMSTATE_I2C_SLAVE(i2c, PCA9554State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void pca9554_reset(DeviceState *dev)
+{
+ PCA9554State *s = PCA9554(dev);
+
+ s->regs[PCA9554_INPUT] = 0xFF;
+ s->regs[PCA9554_OUTPUT] = 0xFF;
+ s->regs[PCA9554_POLARITY] = 0x0; /* No pins are inverted */
+ s->regs[PCA9554_CONFIG] = 0xFF; /* All pins are inputs */
+
+ memset(s->ext_state, PCA9554_PIN_HIZ, PCA9554_PIN_COUNT);
+ pca9554_update_pin_input(s);
+
+ s->pointer = 0x0;
+ s->len = 0;
+}
+
+static void pca9554_initfn(Object *obj)
+{
+ int pin;
+
+ for (pin = 0; pin < PCA9554_PIN_COUNT; pin++) {
+ char *name;
+
+ name = g_strdup_printf("pin%d", pin);
+ object_property_add(obj, name, "bool", pca9554_get_pin, pca9554_set_pin,
+ NULL, NULL);
+ g_free(name);
+ }
+}
+
+static void pca9554_set_ext_state(PCA9554State *s, int pin, int level)
+{
+ if (s->ext_state[pin] != level) {
+ s->ext_state[pin] = level;
+ pca9554_update_pin_input(s);
+ }
+}
+
+static void pca9554_gpio_in_handler(void *opaque, int pin, int level)
+{
+
+ PCA9554State *s = PCA9554(opaque);
+
+ assert((pin >= 0) && (pin < PCA9554_PIN_COUNT));
+ pca9554_set_ext_state(s, pin, level);
+}
+
+static void pca9554_realize(DeviceState *dev, Error **errp)
+{
+ PCA9554State *s = PCA9554(dev);
+
+ if (!s->description) {
+ s->description = g_strdup("pca9554");
+ }
+
+ qdev_init_gpio_out(dev, s->gpio_out, PCA9554_PIN_COUNT);
+ qdev_init_gpio_in(dev, pca9554_gpio_in_handler, PCA9554_PIN_COUNT);
+}
+
+static Property pca9554_properties[] = {
+ DEFINE_PROP_STRING("description", PCA9554State, description),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pca9554_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
+
+ k->event = pca9554_event;
+ k->recv = pca9554_recv;
+ k->send = pca9554_send;
+ dc->realize = pca9554_realize;
+ dc->reset = pca9554_reset;
+ dc->vmsd = &pca9554_vmstate;
+ device_class_set_props(dc, pca9554_properties);
+}
+
+static const TypeInfo pca9554_info = {
+ .name = TYPE_PCA9554,
+ .parent = TYPE_I2C_SLAVE,
+ .instance_init = pca9554_initfn,
+ .instance_size = sizeof(PCA9554State),
+ .class_init = pca9554_class_init,
+ .class_size = sizeof(PCA9554Class),
+ .abstract = false,
+};
+
+static void pca9554_register_types(void)
+{
+ type_register_static(&pca9554_info);
+}
+
+type_init(pca9554_register_types)
nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
+# pca9552.c
+pca955x_gpio_status(const char *description, const char *buf) "%s GPIOs 0-15 [%s]"
+pca955x_gpio_change(const char *description, unsigned id, unsigned prev_state, unsigned current_state) "%s GPIO id:%u status: %u -> %u"
+
# pl061.c
pl061_update(const char *id, uint32_t dir, uint32_t data, uint32_t pullups, uint32_t floating) "%s GPIODIR 0x%x GPIODATA 0x%x pullups 0x%x floating 0x%x"
pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d"
system_ss.add(when: 'CONFIG_FW_CFG_DMA', if_true: files('vmcoreinfo.c'))
system_ss.add(when: 'CONFIG_ISA_DEBUG', if_true: files('debugexit.c'))
system_ss.add(when: 'CONFIG_ISA_TESTDEV', if_true: files('pc-testdev.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_PCI_TESTDEV', if_true: files('pci-testdev.c'))
system_ss.add(when: 'CONFIG_UNIMP', if_true: files('unimp.c'))
system_ss.add(when: 'CONFIG_EMPTY_SLOT', if_true: files('empty_slot.c'))
+++ /dev/null
-/*
- * PCA9552 I2C LED blinker
- *
- * https://www.nxp.com/docs/en/application-note/AN264.pdf
- *
- * Copyright (c) 2017-2018, IBM Corporation.
- * Copyright (c) 2020 Philippe Mathieu-Daudé
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later. See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "qemu/bitops.h"
-#include "hw/qdev-properties.h"
-#include "hw/misc/pca9552.h"
-#include "hw/misc/pca9552_regs.h"
-#include "hw/irq.h"
-#include "migration/vmstate.h"
-#include "qapi/error.h"
-#include "qapi/visitor.h"
-#include "trace.h"
-#include "qom/object.h"
-
-struct PCA955xClass {
- /*< private >*/
- I2CSlaveClass parent_class;
- /*< public >*/
-
- uint8_t pin_count;
- uint8_t max_reg;
-};
-typedef struct PCA955xClass PCA955xClass;
-
-DECLARE_CLASS_CHECKERS(PCA955xClass, PCA955X,
- TYPE_PCA955X)
-/*
- * Note: The LED_ON and LED_OFF configuration values for the PCA955X
- * chips are the reverse of the PCA953X family of chips.
- */
-#define PCA9552_LED_ON 0x0
-#define PCA9552_LED_OFF 0x1
-#define PCA9552_LED_PWM0 0x2
-#define PCA9552_LED_PWM1 0x3
-#define PCA9552_PIN_LOW 0x0
-#define PCA9552_PIN_HIZ 0x1
-
-static const char *led_state[] = {"on", "off", "pwm0", "pwm1"};
-
-static uint8_t pca955x_pin_get_config(PCA955xState *s, int pin)
-{
- uint8_t reg = PCA9552_LS0 + (pin / 4);
- uint8_t shift = (pin % 4) << 1;
-
- return extract32(s->regs[reg], shift, 2);
-}
-
-/* Return INPUT status (bit #N belongs to GPIO #N) */
-static uint16_t pca955x_pins_get_status(PCA955xState *s)
-{
- return (s->regs[PCA9552_INPUT1] << 8) | s->regs[PCA9552_INPUT0];
-}
-
-static void pca955x_display_pins_status(PCA955xState *s,
- uint16_t previous_pins_status)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(s);
- uint16_t pins_status, pins_changed;
- int i;
-
- pins_status = pca955x_pins_get_status(s);
- pins_changed = previous_pins_status ^ pins_status;
- if (!pins_changed) {
- return;
- }
- if (trace_event_get_state_backends(TRACE_PCA955X_GPIO_STATUS)) {
- char *buf = g_newa(char, k->pin_count + 1);
-
- for (i = 0; i < k->pin_count; i++) {
- if (extract32(pins_status, i, 1)) {
- buf[i] = '*';
- } else {
- buf[i] = '.';
- }
- }
- buf[i] = '\0';
- trace_pca955x_gpio_status(s->description, buf);
- }
- if (trace_event_get_state_backends(TRACE_PCA955X_GPIO_CHANGE)) {
- for (i = 0; i < k->pin_count; i++) {
- if (extract32(pins_changed, i, 1)) {
- unsigned new_state = extract32(pins_status, i, 1);
-
- /*
- * We display the state using the PCA logic ("active-high").
- * This is not the state of the LED, which signal might be
- * wired "active-low" on the board.
- */
- trace_pca955x_gpio_change(s->description, i,
- !new_state, new_state);
- }
- }
- }
-}
-
-static void pca955x_update_pin_input(PCA955xState *s)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(s);
- int i;
-
- for (i = 0; i < k->pin_count; i++) {
- uint8_t input_reg = PCA9552_INPUT0 + (i / 8);
- uint8_t bit_mask = 1 << (i % 8);
- uint8_t config = pca955x_pin_get_config(s, i);
- uint8_t old_value = s->regs[input_reg] & bit_mask;
- uint8_t new_value;
-
- switch (config) {
- case PCA9552_LED_ON:
- /* Pin is set to 0V to turn on LED */
- s->regs[input_reg] &= ~bit_mask;
- break;
- case PCA9552_LED_OFF:
- /*
- * Pin is set to Hi-Z to turn off LED and
- * pullup sets it to a logical 1 unless
- * external device drives it low.
- */
- if (s->ext_state[i] == PCA9552_PIN_LOW) {
- s->regs[input_reg] &= ~bit_mask;
- } else {
- s->regs[input_reg] |= bit_mask;
- }
- break;
- case PCA9552_LED_PWM0:
- case PCA9552_LED_PWM1:
- /* TODO */
- default:
- break;
- }
-
- /* update irq state only if pin state changed */
- new_value = s->regs[input_reg] & bit_mask;
- if (new_value != old_value) {
- qemu_set_irq(s->gpio_out[i], !!new_value);
- }
- }
-}
-
-static uint8_t pca955x_read(PCA955xState *s, uint8_t reg)
-{
- switch (reg) {
- case PCA9552_INPUT0:
- case PCA9552_INPUT1:
- case PCA9552_PSC0:
- case PCA9552_PWM0:
- case PCA9552_PSC1:
- case PCA9552_PWM1:
- case PCA9552_LS0:
- case PCA9552_LS1:
- case PCA9552_LS2:
- case PCA9552_LS3:
- return s->regs[reg];
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected read to register %d\n",
- __func__, reg);
- return 0xFF;
- }
-}
-
-static void pca955x_write(PCA955xState *s, uint8_t reg, uint8_t data)
-{
- uint16_t pins_status;
-
- switch (reg) {
- case PCA9552_PSC0:
- case PCA9552_PWM0:
- case PCA9552_PSC1:
- case PCA9552_PWM1:
- s->regs[reg] = data;
- break;
-
- case PCA9552_LS0:
- case PCA9552_LS1:
- case PCA9552_LS2:
- case PCA9552_LS3:
- pins_status = pca955x_pins_get_status(s);
- s->regs[reg] = data;
- pca955x_update_pin_input(s);
- pca955x_display_pins_status(s, pins_status);
- break;
-
- case PCA9552_INPUT0:
- case PCA9552_INPUT1:
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected write to register %d\n",
- __func__, reg);
- }
-}
-
-/*
- * When Auto-Increment is on, the register address is incremented
- * after each byte is sent to or received by the device. The index
- * rollovers to 0 when the maximum register address is reached.
- */
-static void pca955x_autoinc(PCA955xState *s)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(s);
-
- if (s->pointer != 0xFF && s->pointer & PCA9552_AUTOINC) {
- uint8_t reg = s->pointer & 0xf;
-
- reg = (reg + 1) % (k->max_reg + 1);
- s->pointer = reg | PCA9552_AUTOINC;
- }
-}
-
-static uint8_t pca955x_recv(I2CSlave *i2c)
-{
- PCA955xState *s = PCA955X(i2c);
- uint8_t ret;
-
- ret = pca955x_read(s, s->pointer & 0xf);
-
- /*
- * From the Specs:
- *
- * Important Note: When a Read sequence is initiated and the
- * AI bit is set to Logic Level 1, the Read Sequence MUST
- * start by a register different from 0.
- *
- * I don't know what should be done in this case, so throw an
- * error.
- */
- if (s->pointer == PCA9552_AUTOINC) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Autoincrement read starting with register 0\n",
- __func__);
- }
-
- pca955x_autoinc(s);
-
- return ret;
-}
-
-static int pca955x_send(I2CSlave *i2c, uint8_t data)
-{
- PCA955xState *s = PCA955X(i2c);
-
- /* First byte sent by is the register address */
- if (s->len == 0) {
- s->pointer = data;
- s->len++;
- } else {
- pca955x_write(s, s->pointer & 0xf, data);
-
- pca955x_autoinc(s);
- }
-
- return 0;
-}
-
-static int pca955x_event(I2CSlave *i2c, enum i2c_event event)
-{
- PCA955xState *s = PCA955X(i2c);
-
- s->len = 0;
- return 0;
-}
-
-static void pca955x_get_led(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(obj);
- PCA955xState *s = PCA955X(obj);
- int led, rc, reg;
- uint8_t state;
-
- rc = sscanf(name, "led%2d", &led);
- if (rc != 1) {
- error_setg(errp, "%s: error reading %s", __func__, name);
- return;
- }
- if (led < 0 || led > k->pin_count) {
- error_setg(errp, "%s invalid led %s", __func__, name);
- return;
- }
- /*
- * Get the LSx register as the qom interface should expose the device
- * state, not the modeled 'input line' behaviour which would come from
- * reading the INPUTx reg
- */
- reg = PCA9552_LS0 + led / 4;
- state = (pca955x_read(s, reg) >> ((led % 4) * 2)) & 0x3;
- visit_type_str(v, name, (char **)&led_state[state], errp);
-}
-
-/*
- * Return an LED selector register value based on an existing one, with
- * the appropriate 2-bit state value set for the given LED number (0-3).
- */
-static inline uint8_t pca955x_ledsel(uint8_t oldval, int led_num, int state)
-{
- return (oldval & (~(0x3 << (led_num << 1)))) |
- ((state & 0x3) << (led_num << 1));
-}
-
-static void pca955x_set_led(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(obj);
- PCA955xState *s = PCA955X(obj);
- int led, rc, reg, val;
- uint8_t state;
- char *state_str;
-
- if (!visit_type_str(v, name, &state_str, errp)) {
- return;
- }
- rc = sscanf(name, "led%2d", &led);
- if (rc != 1) {
- error_setg(errp, "%s: error reading %s", __func__, name);
- return;
- }
- if (led < 0 || led > k->pin_count) {
- error_setg(errp, "%s invalid led %s", __func__, name);
- return;
- }
-
- for (state = 0; state < ARRAY_SIZE(led_state); state++) {
- if (!strcmp(state_str, led_state[state])) {
- break;
- }
- }
- if (state >= ARRAY_SIZE(led_state)) {
- error_setg(errp, "%s invalid led state %s", __func__, state_str);
- return;
- }
-
- reg = PCA9552_LS0 + led / 4;
- val = pca955x_read(s, reg);
- val = pca955x_ledsel(val, led % 4, state);
- pca955x_write(s, reg, val);
-}
-
-static const VMStateDescription pca9552_vmstate = {
- .name = "PCA9552",
- .version_id = 0,
- .minimum_version_id = 0,
- .fields = (const VMStateField[]) {
- VMSTATE_UINT8(len, PCA955xState),
- VMSTATE_UINT8(pointer, PCA955xState),
- VMSTATE_UINT8_ARRAY(regs, PCA955xState, PCA955X_NR_REGS),
- VMSTATE_UINT8_ARRAY(ext_state, PCA955xState, PCA955X_PIN_COUNT_MAX),
- VMSTATE_I2C_SLAVE(i2c, PCA955xState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void pca9552_reset(DeviceState *dev)
-{
- PCA955xState *s = PCA955X(dev);
-
- s->regs[PCA9552_PSC0] = 0xFF;
- s->regs[PCA9552_PWM0] = 0x80;
- s->regs[PCA9552_PSC1] = 0xFF;
- s->regs[PCA9552_PWM1] = 0x80;
- s->regs[PCA9552_LS0] = 0x55; /* all OFF */
- s->regs[PCA9552_LS1] = 0x55;
- s->regs[PCA9552_LS2] = 0x55;
- s->regs[PCA9552_LS3] = 0x55;
-
- memset(s->ext_state, PCA9552_PIN_HIZ, PCA955X_PIN_COUNT_MAX);
- pca955x_update_pin_input(s);
-
- s->pointer = 0xFF;
- s->len = 0;
-}
-
-static void pca955x_initfn(Object *obj)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(obj);
- int led;
-
- assert(k->pin_count <= PCA955X_PIN_COUNT_MAX);
- for (led = 0; led < k->pin_count; led++) {
- char *name;
-
- name = g_strdup_printf("led%d", led);
- object_property_add(obj, name, "bool", pca955x_get_led, pca955x_set_led,
- NULL, NULL);
- g_free(name);
- }
-}
-
-static void pca955x_set_ext_state(PCA955xState *s, int pin, int level)
-{
- if (s->ext_state[pin] != level) {
- uint16_t pins_status = pca955x_pins_get_status(s);
- s->ext_state[pin] = level;
- pca955x_update_pin_input(s);
- pca955x_display_pins_status(s, pins_status);
- }
-}
-
-static void pca955x_gpio_in_handler(void *opaque, int pin, int level)
-{
-
- PCA955xState *s = PCA955X(opaque);
- PCA955xClass *k = PCA955X_GET_CLASS(s);
-
- assert((pin >= 0) && (pin < k->pin_count));
- pca955x_set_ext_state(s, pin, level);
-}
-
-static void pca955x_realize(DeviceState *dev, Error **errp)
-{
- PCA955xClass *k = PCA955X_GET_CLASS(dev);
- PCA955xState *s = PCA955X(dev);
-
- if (!s->description) {
- s->description = g_strdup("pca-unspecified");
- }
-
- qdev_init_gpio_out(dev, s->gpio_out, k->pin_count);
- qdev_init_gpio_in(dev, pca955x_gpio_in_handler, k->pin_count);
-}
-
-static Property pca955x_properties[] = {
- DEFINE_PROP_STRING("description", PCA955xState, description),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void pca955x_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
-
- k->event = pca955x_event;
- k->recv = pca955x_recv;
- k->send = pca955x_send;
- dc->realize = pca955x_realize;
- device_class_set_props(dc, pca955x_properties);
-}
-
-static const TypeInfo pca955x_info = {
- .name = TYPE_PCA955X,
- .parent = TYPE_I2C_SLAVE,
- .instance_init = pca955x_initfn,
- .instance_size = sizeof(PCA955xState),
- .class_init = pca955x_class_init,
- .class_size = sizeof(PCA955xClass),
- .abstract = true,
-};
-
-static void pca9552_class_init(ObjectClass *oc, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(oc);
- PCA955xClass *pc = PCA955X_CLASS(oc);
-
- dc->reset = pca9552_reset;
- dc->vmsd = &pca9552_vmstate;
- pc->max_reg = PCA9552_LS3;
- pc->pin_count = 16;
-}
-
-static const TypeInfo pca9552_info = {
- .name = TYPE_PCA9552,
- .parent = TYPE_PCA955X,
- .class_init = pca9552_class_init,
-};
-
-static void pca955x_register_types(void)
-{
- type_register_static(&pca955x_info);
- type_register_static(&pca9552_info);
-}
-
-type_init(pca955x_register_types)
+++ /dev/null
-/*
- * PCA9554 I/O port
- *
- * Copyright (c) 2023, IBM Corporation.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-
-#include "qemu/osdep.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "qemu/bitops.h"
-#include "hw/qdev-properties.h"
-#include "hw/misc/pca9554.h"
-#include "hw/misc/pca9554_regs.h"
-#include "hw/irq.h"
-#include "migration/vmstate.h"
-#include "qapi/error.h"
-#include "qapi/visitor.h"
-#include "trace.h"
-#include "qom/object.h"
-
-struct PCA9554Class {
- /*< private >*/
- I2CSlaveClass parent_class;
- /*< public >*/
-};
-typedef struct PCA9554Class PCA9554Class;
-
-DECLARE_CLASS_CHECKERS(PCA9554Class, PCA9554,
- TYPE_PCA9554)
-
-#define PCA9554_PIN_LOW 0x0
-#define PCA9554_PIN_HIZ 0x1
-
-static const char *pin_state[] = {"low", "high"};
-
-static void pca9554_update_pin_input(PCA9554State *s)
-{
- int i;
- uint8_t config = s->regs[PCA9554_CONFIG];
- uint8_t output = s->regs[PCA9554_OUTPUT];
- uint8_t internal_state = config | output;
-
- for (i = 0; i < PCA9554_PIN_COUNT; i++) {
- uint8_t bit_mask = 1 << i;
- uint8_t internal_pin_state = (internal_state >> i) & 0x1;
- uint8_t old_value = s->regs[PCA9554_INPUT] & bit_mask;
- uint8_t new_value;
-
- switch (internal_pin_state) {
- case PCA9554_PIN_LOW:
- s->regs[PCA9554_INPUT] &= ~bit_mask;
- break;
- case PCA9554_PIN_HIZ:
- /*
- * pullup sets it to a logical 1 unless
- * external device drives it low.
- */
- if (s->ext_state[i] == PCA9554_PIN_LOW) {
- s->regs[PCA9554_INPUT] &= ~bit_mask;
- } else {
- s->regs[PCA9554_INPUT] |= bit_mask;
- }
- break;
- default:
- break;
- }
-
- /* update irq state only if pin state changed */
- new_value = s->regs[PCA9554_INPUT] & bit_mask;
- if (new_value != old_value) {
- if (new_value) {
- /* changed from 0 to 1 */
- qemu_set_irq(s->gpio_out[i], 1);
- } else {
- /* changed from 1 to 0 */
- qemu_set_irq(s->gpio_out[i], 0);
- }
- }
- }
-}
-
-static uint8_t pca9554_read(PCA9554State *s, uint8_t reg)
-{
- switch (reg) {
- case PCA9554_INPUT:
- return s->regs[PCA9554_INPUT] ^ s->regs[PCA9554_POLARITY];
- case PCA9554_OUTPUT:
- case PCA9554_POLARITY:
- case PCA9554_CONFIG:
- return s->regs[reg];
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected read to register %d\n",
- __func__, reg);
- return 0xFF;
- }
-}
-
-static void pca9554_write(PCA9554State *s, uint8_t reg, uint8_t data)
-{
- switch (reg) {
- case PCA9554_OUTPUT:
- case PCA9554_CONFIG:
- s->regs[reg] = data;
- pca9554_update_pin_input(s);
- break;
- case PCA9554_POLARITY:
- s->regs[reg] = data;
- break;
- case PCA9554_INPUT:
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: unexpected write to register %d\n",
- __func__, reg);
- }
-}
-
-static uint8_t pca9554_recv(I2CSlave *i2c)
-{
- PCA9554State *s = PCA9554(i2c);
- uint8_t ret;
-
- ret = pca9554_read(s, s->pointer & 0x3);
-
- return ret;
-}
-
-static int pca9554_send(I2CSlave *i2c, uint8_t data)
-{
- PCA9554State *s = PCA9554(i2c);
-
- /* First byte sent by is the register address */
- if (s->len == 0) {
- s->pointer = data;
- s->len++;
- } else {
- pca9554_write(s, s->pointer & 0x3, data);
- }
-
- return 0;
-}
-
-static int pca9554_event(I2CSlave *i2c, enum i2c_event event)
-{
- PCA9554State *s = PCA9554(i2c);
-
- s->len = 0;
- return 0;
-}
-
-static void pca9554_get_pin(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- PCA9554State *s = PCA9554(obj);
- int pin, rc;
- uint8_t state;
-
- rc = sscanf(name, "pin%2d", &pin);
- if (rc != 1) {
- error_setg(errp, "%s: error reading %s", __func__, name);
- return;
- }
- if (pin < 0 || pin > PCA9554_PIN_COUNT) {
- error_setg(errp, "%s invalid pin %s", __func__, name);
- return;
- }
-
- state = pca9554_read(s, PCA9554_CONFIG);
- state |= pca9554_read(s, PCA9554_OUTPUT);
- state = (state >> pin) & 0x1;
- visit_type_str(v, name, (char **)&pin_state[state], errp);
-}
-
-static void pca9554_set_pin(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- PCA9554State *s = PCA9554(obj);
- int pin, rc, val;
- uint8_t state, mask;
- char *state_str;
-
- if (!visit_type_str(v, name, &state_str, errp)) {
- return;
- }
- rc = sscanf(name, "pin%2d", &pin);
- if (rc != 1) {
- error_setg(errp, "%s: error reading %s", __func__, name);
- return;
- }
- if (pin < 0 || pin > PCA9554_PIN_COUNT) {
- error_setg(errp, "%s invalid pin %s", __func__, name);
- return;
- }
-
- for (state = 0; state < ARRAY_SIZE(pin_state); state++) {
- if (!strcmp(state_str, pin_state[state])) {
- break;
- }
- }
- if (state >= ARRAY_SIZE(pin_state)) {
- error_setg(errp, "%s invalid pin state %s", __func__, state_str);
- return;
- }
-
- /* First, modify the output register bit */
- val = pca9554_read(s, PCA9554_OUTPUT);
- mask = 0x1 << pin;
- if (state == PCA9554_PIN_LOW) {
- val &= ~(mask);
- } else {
- val |= mask;
- }
- pca9554_write(s, PCA9554_OUTPUT, val);
-
- /* Then, clear the config register bit for output mode */
- val = pca9554_read(s, PCA9554_CONFIG);
- val &= ~mask;
- pca9554_write(s, PCA9554_CONFIG, val);
-}
-
-static const VMStateDescription pca9554_vmstate = {
- .name = "PCA9554",
- .version_id = 0,
- .minimum_version_id = 0,
- .fields = (VMStateField[]) {
- VMSTATE_UINT8(len, PCA9554State),
- VMSTATE_UINT8(pointer, PCA9554State),
- VMSTATE_UINT8_ARRAY(regs, PCA9554State, PCA9554_NR_REGS),
- VMSTATE_UINT8_ARRAY(ext_state, PCA9554State, PCA9554_PIN_COUNT),
- VMSTATE_I2C_SLAVE(i2c, PCA9554State),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void pca9554_reset(DeviceState *dev)
-{
- PCA9554State *s = PCA9554(dev);
-
- s->regs[PCA9554_INPUT] = 0xFF;
- s->regs[PCA9554_OUTPUT] = 0xFF;
- s->regs[PCA9554_POLARITY] = 0x0; /* No pins are inverted */
- s->regs[PCA9554_CONFIG] = 0xFF; /* All pins are inputs */
-
- memset(s->ext_state, PCA9554_PIN_HIZ, PCA9554_PIN_COUNT);
- pca9554_update_pin_input(s);
-
- s->pointer = 0x0;
- s->len = 0;
-}
-
-static void pca9554_initfn(Object *obj)
-{
- int pin;
-
- for (pin = 0; pin < PCA9554_PIN_COUNT; pin++) {
- char *name;
-
- name = g_strdup_printf("pin%d", pin);
- object_property_add(obj, name, "bool", pca9554_get_pin, pca9554_set_pin,
- NULL, NULL);
- g_free(name);
- }
-}
-
-static void pca9554_set_ext_state(PCA9554State *s, int pin, int level)
-{
- if (s->ext_state[pin] != level) {
- s->ext_state[pin] = level;
- pca9554_update_pin_input(s);
- }
-}
-
-static void pca9554_gpio_in_handler(void *opaque, int pin, int level)
-{
-
- PCA9554State *s = PCA9554(opaque);
-
- assert((pin >= 0) && (pin < PCA9554_PIN_COUNT));
- pca9554_set_ext_state(s, pin, level);
-}
-
-static void pca9554_realize(DeviceState *dev, Error **errp)
-{
- PCA9554State *s = PCA9554(dev);
-
- if (!s->description) {
- s->description = g_strdup("pca9554");
- }
-
- qdev_init_gpio_out(dev, s->gpio_out, PCA9554_PIN_COUNT);
- qdev_init_gpio_in(dev, pca9554_gpio_in_handler, PCA9554_PIN_COUNT);
-}
-
-static Property pca9554_properties[] = {
- DEFINE_PROP_STRING("description", PCA9554State, description),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void pca9554_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
-
- k->event = pca9554_event;
- k->recv = pca9554_recv;
- k->send = pca9554_send;
- dc->realize = pca9554_realize;
- dc->reset = pca9554_reset;
- dc->vmsd = &pca9554_vmstate;
- device_class_set_props(dc, pca9554_properties);
-}
-
-static const TypeInfo pca9554_info = {
- .name = TYPE_PCA9554,
- .parent = TYPE_I2C_SLAVE,
- .instance_init = pca9554_initfn,
- .instance_size = sizeof(PCA9554State),
- .class_init = pca9554_class_init,
- .class_size = sizeof(PCA9554Class),
- .abstract = false,
-};
-
-static void pca9554_register_types(void)
-{
- type_register_static(&pca9554_info);
-}
-
-type_init(pca9554_register_types)
led_set_intensity(const char *color, const char *desc, uint8_t intensity_percent) "LED desc:'%s' color:%s intensity: %u%%"
led_change_intensity(const char *color, const char *desc, uint8_t old_intensity_percent, uint8_t new_intensity_percent) "LED desc:'%s' color:%s intensity %u%% -> %u%%"
-# pca9552.c
-pca955x_gpio_status(const char *description, const char *buf) "%s GPIOs 0-15 [%s]"
-pca955x_gpio_change(const char *description, unsigned id, unsigned prev_state, unsigned current_state) "%s GPIO id:%u status: %u -> %u"
-
# bcm2835_cprman.c
bcm2835_cprman_read(uint64_t offset, uint64_t value) "offset:0x%" PRIx64 " value:0x%" PRIx64
bcm2835_cprman_write(uint64_t offset, uint64_t value) "offset:0x%" PRIx64 " value:0x%" PRIx64
--- /dev/null
+/*
+ * PCA9552 I2C LED blinker
+ *
+ * Copyright (c) 2017-2018, IBM Corporation.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+#ifndef PCA9552_H
+#define PCA9552_H
+
+#include "hw/i2c/i2c.h"
+#include "qom/object.h"
+
+#define TYPE_PCA9552 "pca9552"
+#define TYPE_PCA955X "pca955x"
+typedef struct PCA955xState PCA955xState;
+DECLARE_INSTANCE_CHECKER(PCA955xState, PCA955X,
+ TYPE_PCA955X)
+
+#define PCA955X_NR_REGS 10
+#define PCA955X_PIN_COUNT_MAX 16
+
+struct PCA955xState {
+ /*< private >*/
+ I2CSlave i2c;
+ /*< public >*/
+
+ uint8_t len;
+ uint8_t pointer;
+
+ uint8_t regs[PCA955X_NR_REGS];
+ qemu_irq gpio_out[PCA955X_PIN_COUNT_MAX];
+ uint8_t ext_state[PCA955X_PIN_COUNT_MAX];
+ char *description; /* For debugging purpose only */
+};
+
+#endif
--- /dev/null
+/*
+ * PCA9552 I2C LED blinker registers
+ *
+ * Copyright (c) 2017-2018, IBM Corporation.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+#ifndef PCA9552_REGS_H
+#define PCA9552_REGS_H
+
+/*
+ * Bits [0:3] are used to address a specific register.
+ */
+#define PCA9552_INPUT0 0 /* read only input register 0 */
+#define PCA9552_INPUT1 1 /* read only input register 1 */
+#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */
+#define PCA9552_PWM0 3 /* read/write PWM register 0 */
+#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */
+#define PCA9552_PWM1 5 /* read/write PWM register 1 */
+#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */
+#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */
+#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */
+#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */
+
+/*
+ * Bit [4] is used to activate the Auto-Increment option of the
+ * register address
+ */
+#define PCA9552_AUTOINC (1 << 4)
+
+#endif
--- /dev/null
+/*
+ * PCA9554 I/O port
+ *
+ * Copyright (c) 2023, IBM Corporation.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef PCA9554_H
+#define PCA9554_H
+
+#include "hw/i2c/i2c.h"
+#include "qom/object.h"
+
+#define TYPE_PCA9554 "pca9554"
+typedef struct PCA9554State PCA9554State;
+DECLARE_INSTANCE_CHECKER(PCA9554State, PCA9554,
+ TYPE_PCA9554)
+
+#define PCA9554_NR_REGS 4
+#define PCA9554_PIN_COUNT 8
+
+struct PCA9554State {
+ /*< private >*/
+ I2CSlave i2c;
+ /*< public >*/
+
+ uint8_t len;
+ uint8_t pointer;
+
+ uint8_t regs[PCA9554_NR_REGS];
+ qemu_irq gpio_out[PCA9554_PIN_COUNT];
+ uint8_t ext_state[PCA9554_PIN_COUNT];
+ char *description; /* For debugging purpose only */
+};
+
+#endif
--- /dev/null
+/*
+ * PCA9554 I/O port registers
+ *
+ * Copyright (c) 2023, IBM Corporation.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef PCA9554_REGS_H
+#define PCA9554_REGS_H
+
+/*
+ * Bits [0:1] are used to address a specific register.
+ */
+#define PCA9554_INPUT 0 /* read only input register */
+#define PCA9554_OUTPUT 1 /* read/write pin output state */
+#define PCA9554_POLARITY 2 /* Set polarity of input register */
+#define PCA9554_CONFIG 3 /* Set pins as inputs our ouputs */
+
+#endif
+++ /dev/null
-/*
- * PCA9552 I2C LED blinker
- *
- * Copyright (c) 2017-2018, IBM Corporation.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later. See the COPYING file in the top-level directory.
- */
-#ifndef PCA9552_H
-#define PCA9552_H
-
-#include "hw/i2c/i2c.h"
-#include "qom/object.h"
-
-#define TYPE_PCA9552 "pca9552"
-#define TYPE_PCA955X "pca955x"
-typedef struct PCA955xState PCA955xState;
-DECLARE_INSTANCE_CHECKER(PCA955xState, PCA955X,
- TYPE_PCA955X)
-
-#define PCA955X_NR_REGS 10
-#define PCA955X_PIN_COUNT_MAX 16
-
-struct PCA955xState {
- /*< private >*/
- I2CSlave i2c;
- /*< public >*/
-
- uint8_t len;
- uint8_t pointer;
-
- uint8_t regs[PCA955X_NR_REGS];
- qemu_irq gpio_out[PCA955X_PIN_COUNT_MAX];
- uint8_t ext_state[PCA955X_PIN_COUNT_MAX];
- char *description; /* For debugging purpose only */
-};
-
-#endif
+++ /dev/null
-/*
- * PCA9552 I2C LED blinker registers
- *
- * Copyright (c) 2017-2018, IBM Corporation.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later. See the COPYING file in the top-level directory.
- */
-#ifndef PCA9552_REGS_H
-#define PCA9552_REGS_H
-
-/*
- * Bits [0:3] are used to address a specific register.
- */
-#define PCA9552_INPUT0 0 /* read only input register 0 */
-#define PCA9552_INPUT1 1 /* read only input register 1 */
-#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */
-#define PCA9552_PWM0 3 /* read/write PWM register 0 */
-#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */
-#define PCA9552_PWM1 5 /* read/write PWM register 1 */
-#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */
-#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */
-#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */
-#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */
-
-/*
- * Bit [4] is used to activate the Auto-Increment option of the
- * register address
- */
-#define PCA9552_AUTOINC (1 << 4)
-
-#endif
+++ /dev/null
-/*
- * PCA9554 I/O port
- *
- * Copyright (c) 2023, IBM Corporation.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-#ifndef PCA9554_H
-#define PCA9554_H
-
-#include "hw/i2c/i2c.h"
-#include "qom/object.h"
-
-#define TYPE_PCA9554 "pca9554"
-typedef struct PCA9554State PCA9554State;
-DECLARE_INSTANCE_CHECKER(PCA9554State, PCA9554,
- TYPE_PCA9554)
-
-#define PCA9554_NR_REGS 4
-#define PCA9554_PIN_COUNT 8
-
-struct PCA9554State {
- /*< private >*/
- I2CSlave i2c;
- /*< public >*/
-
- uint8_t len;
- uint8_t pointer;
-
- uint8_t regs[PCA9554_NR_REGS];
- qemu_irq gpio_out[PCA9554_PIN_COUNT];
- uint8_t ext_state[PCA9554_PIN_COUNT];
- char *description; /* For debugging purpose only */
-};
-
-#endif
+++ /dev/null
-/*
- * PCA9554 I/O port registers
- *
- * Copyright (c) 2023, IBM Corporation.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-#ifndef PCA9554_REGS_H
-#define PCA9554_REGS_H
-
-/*
- * Bits [0:1] are used to address a specific register.
- */
-#define PCA9554_INPUT 0 /* read only input register */
-#define PCA9554_OUTPUT 1 /* read/write pin output state */
-#define PCA9554_POLARITY 2 /* Set polarity of input register */
-#define PCA9554_CONFIG 3 /* Set pins as inputs our ouputs */
-
-#endif
#include "libqtest.h"
#include "libqos/qgraph.h"
#include "libqos/i2c.h"
-#include "hw/misc/pca9552_regs.h"
+#include "hw/gpio/pca9552_regs.h"
#define PCA9552_TEST_ID "pca9552-test"
#define PCA9552_TEST_ADDR 0x60
*/
#include "qemu/osdep.h"
#include "libqtest.h"
-#include "hw/misc/pca9554_regs.h"
-#include "hw/misc/pca9552_regs.h"
+#include "hw/gpio/pca9554_regs.h"
+#include "hw/gpio/pca9552_regs.h"
#include "pnv-xscom.h"
#define PPC_BIT(bit) (0x8000000000000000ULL >> (bit))
projects / qemu.git / commitdiff