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-rw-r--r--hw/arm/Kconfig1
-rw-r--r--hw/arm/aspeed.c72
-rw-r--r--hw/arm/aspeed_ast2600.c2
-rw-r--r--hw/misc/Kconfig4
-rw-r--r--hw/misc/emc141x.c326
-rw-r--r--hw/misc/meson.build1
-rw-r--r--hw/ssi/aspeed_smc.c25
-rw-r--r--include/hw/misc/emc141x_regs.h37
-rw-r--r--tests/qtest/emc141x-test.c81
-rw-r--r--tests/qtest/meson.build1
10 files changed, 542 insertions, 8 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index e69a9009cf..eb8a8844cf 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -407,6 +407,7 @@ config ASPEED_SOC
select SSI_M25P80
select TMP105
select TMP421
+ select EMC141X
select UNIMP
select LED
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 0ef3f6b412..bfe2051cfe 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -121,6 +121,20 @@ struct AspeedMachineState {
SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
+#define G220A_BMC_HW_STRAP1 ( \
+ SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
+ SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
+ SCU_AST2500_HW_STRAP_UART_DEBUG | \
+ SCU_AST2500_HW_STRAP_RESERVED28 | \
+ SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
+ SCU_HW_STRAP_2ND_BOOT_WDT | \
+ SCU_HW_STRAP_VGA_CLASS_CODE | \
+ SCU_HW_STRAP_LPC_RESET_PIN | \
+ SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER) | \
+ SCU_AST2500_HW_STRAP_SET_AXI_AHB_RATIO(AXI_AHB_RATIO_2_1) | \
+ SCU_HW_STRAP_VGA_SIZE_SET(VGA_64M_DRAM) | \
+ SCU_AST2500_HW_STRAP_RESERVED1)
+
/* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
#define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
@@ -579,6 +593,42 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
/* Bus 11: TODO ucd90160@64 */
}
+static void g220a_bmc_i2c_init(AspeedMachineState *bmc)
+{
+ AspeedSoCState *soc = &bmc->soc;
+ DeviceState *dev;
+
+ dev = DEVICE(i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3),
+ "emc1413", 0x4c));
+ object_property_set_int(OBJECT(dev), "temperature0", 31000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature1", 28000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature2", 20000, &error_abort);
+
+ dev = DEVICE(i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 12),
+ "emc1413", 0x4c));
+ object_property_set_int(OBJECT(dev), "temperature0", 31000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature1", 28000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature2", 20000, &error_abort);
+
+ dev = DEVICE(i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 13),
+ "emc1413", 0x4c));
+ object_property_set_int(OBJECT(dev), "temperature0", 31000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature1", 28000, &error_abort);
+ object_property_set_int(OBJECT(dev), "temperature2", 20000, &error_abort);
+
+ static uint8_t eeprom_buf[2 * 1024] = {
+ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0xfe,
+ 0x01, 0x06, 0x00, 0xc9, 0x42, 0x79, 0x74, 0x65,
+ 0x64, 0x61, 0x6e, 0x63, 0x65, 0xc5, 0x47, 0x32,
+ 0x32, 0x30, 0x41, 0xc4, 0x41, 0x41, 0x42, 0x42,
+ 0xc4, 0x43, 0x43, 0x44, 0x44, 0xc4, 0x45, 0x45,
+ 0x46, 0x46, 0xc4, 0x48, 0x48, 0x47, 0x47, 0xc1,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa7,
+ };
+ smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 4), 0x57,
+ eeprom_buf);
+}
+
static bool aspeed_get_mmio_exec(Object *obj, Error **errp)
{
return ASPEED_MACHINE(obj)->mmio_exec;
@@ -818,6 +868,24 @@ static void aspeed_machine_tacoma_class_init(ObjectClass *oc, void *data)
aspeed_soc_num_cpus(amc->soc_name);
};
+static void aspeed_machine_g220a_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+ AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
+
+ mc->desc = "Bytedance G220A BMC (ARM1176)";
+ amc->soc_name = "ast2500-a1";
+ amc->hw_strap1 = G220A_BMC_HW_STRAP1;
+ amc->fmc_model = "n25q512a";
+ amc->spi_model = "mx25l25635e";
+ amc->num_cs = 2;
+ amc->macs_mask = ASPEED_MAC1_ON | ASPEED_MAC2_ON;
+ amc->i2c_init = g220a_bmc_i2c_init;
+ mc->default_ram_size = 1024 * MiB;
+ mc->default_cpus = mc->min_cpus = mc->max_cpus =
+ aspeed_soc_num_cpus(amc->soc_name);
+};
+
static const TypeInfo aspeed_machine_types[] = {
{
.name = MACHINE_TYPE_NAME("palmetto-bmc"),
@@ -856,6 +924,10 @@ static const TypeInfo aspeed_machine_types[] = {
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_tacoma_class_init,
}, {
+ .name = MACHINE_TYPE_NAME("g220a-bmc"),
+ .parent = TYPE_ASPEED_MACHINE,
+ .class_init = aspeed_machine_g220a_class_init,
+ }, {
.name = TYPE_ASPEED_MACHINE,
.parent = TYPE_MACHINE,
.instance_size = sizeof(AspeedMachineState),
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index 1450bde7cf..12e4a16d37 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -481,7 +481,7 @@ static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data)
sc->name = "ast2600-a1";
sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
sc->silicon_rev = AST2600_A1_SILICON_REV;
- sc->sram_size = 0x10000;
+ sc->sram_size = 0x16400;
sc->spis_num = 2;
sc->ehcis_num = 2;
sc->wdts_num = 4;
diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
index dc44dc14f6..cf18ac08e6 100644
--- a/hw/misc/Kconfig
+++ b/hw/misc/Kconfig
@@ -13,6 +13,10 @@ config TMP421
bool
depends on I2C
+config EMC141X
+ bool
+ depends on I2C
+
config ISA_DEBUG
bool
depends on ISA_BUS
diff --git a/hw/misc/emc141x.c b/hw/misc/emc141x.c
new file mode 100644
index 0000000000..f7c53d48a4
--- /dev/null
+++ b/hw/misc/emc141x.c
@@ -0,0 +1,326 @@
+/*
+ * SMSC EMC141X temperature sensor.
+ *
+ * Copyright (c) 2020 Bytedance Corporation
+ * Written by John Wang <wangzhiqiang.bj@bytedance.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/i2c/i2c.h"
+#include "migration/vmstate.h"
+#include "qapi/error.h"
+#include "qapi/visitor.h"
+#include "qemu/module.h"
+#include "qom/object.h"
+#include "hw/misc/emc141x_regs.h"
+
+#define SENSORS_COUNT_MAX 4
+
+struct EMC141XState {
+ I2CSlave parent_obj;
+ struct {
+ uint8_t raw_temp_min;
+ uint8_t raw_temp_current;
+ uint8_t raw_temp_max;
+ } sensor[SENSORS_COUNT_MAX];
+ uint8_t len;
+ uint8_t data;
+ uint8_t pointer;
+};
+
+struct EMC141XClass {
+ I2CSlaveClass parent_class;
+ uint8_t model;
+ unsigned sensors_count;
+};
+
+#define TYPE_EMC141X "emc141x"
+OBJECT_DECLARE_TYPE(EMC141XState, EMC141XClass, EMC141X)
+
+static void emc141x_get_temperature(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ EMC141XState *s = EMC141X(obj);
+ EMC141XClass *sc = EMC141X_GET_CLASS(s);
+ int64_t value;
+ unsigned tempid;
+
+ if (sscanf(name, "temperature%u", &tempid) != 1) {
+ error_setg(errp, "error reading %s: %s", name, g_strerror(errno));
+ return;
+ }
+
+ if (tempid >= sc->sensors_count) {
+ error_setg(errp, "error reading %s", name);
+ return;
+ }
+
+ value = s->sensor[tempid].raw_temp_current * 1000;
+
+ visit_type_int(v, name, &value, errp);
+}
+
+static void emc141x_set_temperature(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ EMC141XState *s = EMC141X(obj);
+ EMC141XClass *sc = EMC141X_GET_CLASS(s);
+ int64_t temp;
+ unsigned tempid;
+
+ if (!visit_type_int(v, name, &temp, errp)) {
+ return;
+ }
+
+ if (sscanf(name, "temperature%u", &tempid) != 1) {
+ error_setg(errp, "error reading %s: %s", name, g_strerror(errno));
+ return;
+ }
+
+ if (tempid >= sc->sensors_count) {
+ error_setg(errp, "error reading %s", name);
+ return;
+ }
+
+ s->sensor[tempid].raw_temp_current = temp / 1000;
+}
+
+static void emc141x_read(EMC141XState *s)
+{
+ EMC141XClass *sc = EMC141X_GET_CLASS(s);
+ switch (s->pointer) {
+ case EMC141X_DEVICE_ID:
+ s->data = sc->model;
+ break;
+ case EMC141X_MANUFACTURER_ID:
+ s->data = MANUFACTURER_ID;
+ break;
+ case EMC141X_REVISION:
+ s->data = REVISION;
+ break;
+ case EMC141X_TEMP_HIGH0:
+ s->data = s->sensor[0].raw_temp_current;
+ break;
+ case EMC141X_TEMP_HIGH1:
+ s->data = s->sensor[1].raw_temp_current;
+ break;
+ case EMC141X_TEMP_HIGH2:
+ s->data = s->sensor[2].raw_temp_current;
+ break;
+ case EMC141X_TEMP_HIGH3:
+ s->data = s->sensor[3].raw_temp_current;
+ break;
+ case EMC141X_TEMP_MAX_HIGH0:
+ s->data = s->sensor[0].raw_temp_max;
+ break;
+ case EMC141X_TEMP_MAX_HIGH1:
+ s->data = s->sensor[1].raw_temp_max;
+ break;
+ case EMC141X_TEMP_MAX_HIGH2:
+ s->data = s->sensor[2].raw_temp_max;
+ break;
+ case EMC141X_TEMP_MAX_HIGH3:
+ s->data = s->sensor[3].raw_temp_max;
+ break;
+ case EMC141X_TEMP_MIN_HIGH0:
+ s->data = s->sensor[0].raw_temp_min;
+ break;
+ case EMC141X_TEMP_MIN_HIGH1:
+ s->data = s->sensor[1].raw_temp_min;
+ break;
+ case EMC141X_TEMP_MIN_HIGH2:
+ s->data = s->sensor[2].raw_temp_min;
+ break;
+ case EMC141X_TEMP_MIN_HIGH3:
+ s->data = s->sensor[3].raw_temp_min;
+ break;
+ default:
+ s->data = 0;
+ }
+}
+
+static void emc141x_write(EMC141XState *s)
+{
+ switch (s->pointer) {
+ case EMC141X_TEMP_MAX_HIGH0:
+ s->sensor[0].raw_temp_max = s->data;
+ break;
+ case EMC141X_TEMP_MAX_HIGH1:
+ s->sensor[1].raw_temp_max = s->data;
+ break;
+ case EMC141X_TEMP_MAX_HIGH2:
+ s->sensor[2].raw_temp_max = s->data;
+ break;
+ case EMC141X_TEMP_MAX_HIGH3:
+ s->sensor[3].raw_temp_max = s->data;
+ break;
+ case EMC141X_TEMP_MIN_HIGH0:
+ s->sensor[0].raw_temp_min = s->data;
+ break;
+ case EMC141X_TEMP_MIN_HIGH1:
+ s->sensor[1].raw_temp_min = s->data;
+ break;
+ case EMC141X_TEMP_MIN_HIGH2:
+ s->sensor[2].raw_temp_min = s->data;
+ break;
+ case EMC141X_TEMP_MIN_HIGH3:
+ s->sensor[3].raw_temp_min = s->data;
+ break;
+ default:
+ s->data = 0;
+ }
+}
+
+static uint8_t emc141x_rx(I2CSlave *i2c)
+{
+ EMC141XState *s = EMC141X(i2c);
+
+ if (s->len == 0) {
+ s->len++;
+ return s->data;
+ } else {
+ return 0xff;
+ }
+}
+
+static int emc141x_tx(I2CSlave *i2c, uint8_t data)
+{
+ EMC141XState *s = EMC141X(i2c);
+
+ if (s->len == 0) {
+ /* first byte is the reg pointer */
+ s->pointer = data;
+ s->len++;
+ } else if (s->len == 1) {
+ s->data = data;
+ emc141x_write(s);
+ }
+
+ return 0;
+}
+
+static int emc141x_event(I2CSlave *i2c, enum i2c_event event)
+{
+ EMC141XState *s = EMC141X(i2c);
+
+ if (event == I2C_START_RECV) {
+ emc141x_read(s);
+ }
+
+ s->len = 0;
+ return 0;
+}
+
+static const VMStateDescription vmstate_emc141x = {
+ .name = "EMC141X",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(len, EMC141XState),
+ VMSTATE_UINT8(data, EMC141XState),
+ VMSTATE_UINT8(pointer, EMC141XState),
+ VMSTATE_I2C_SLAVE(parent_obj, EMC141XState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void emc141x_reset(DeviceState *dev)
+{
+ EMC141XState *s = EMC141X(dev);
+ int i;
+
+ for (i = 0; i < SENSORS_COUNT_MAX; i++) {
+ s->sensor[i].raw_temp_max = 0x55;
+ }
+ s->pointer = 0;
+ s->len = 0;
+}
+
+static void emc141x_initfn(Object *obj)
+{
+ object_property_add(obj, "temperature0", "int",
+ emc141x_get_temperature,
+ emc141x_set_temperature, NULL, NULL);
+ object_property_add(obj, "temperature1", "int",
+ emc141x_get_temperature,
+ emc141x_set_temperature, NULL, NULL);
+ object_property_add(obj, "temperature2", "int",
+ emc141x_get_temperature,
+ emc141x_set_temperature, NULL, NULL);
+ object_property_add(obj, "temperature3", "int",
+ emc141x_get_temperature,
+ emc141x_set_temperature, NULL, NULL);
+}
+
+static void emc141x_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
+
+ dc->reset = emc141x_reset;
+ k->event = emc141x_event;
+ k->recv = emc141x_rx;
+ k->send = emc141x_tx;
+ dc->vmsd = &vmstate_emc141x;
+}
+
+static void emc1413_class_init(ObjectClass *klass, void *data)
+{
+ EMC141XClass *ec = EMC141X_CLASS(klass);
+
+ emc141x_class_init(klass, data);
+ ec->model = EMC1413_DEVICE_ID;
+ ec->sensors_count = 3;
+}
+
+static void emc1414_class_init(ObjectClass *klass, void *data)
+{
+ EMC141XClass *ec = EMC141X_CLASS(klass);
+
+ emc141x_class_init(klass, data);
+ ec->model = EMC1414_DEVICE_ID;
+ ec->sensors_count = 4;
+}
+
+static const TypeInfo emc141x_info = {
+ .name = TYPE_EMC141X,
+ .parent = TYPE_I2C_SLAVE,
+ .instance_size = sizeof(EMC141XState),
+ .class_size = sizeof(EMC141XClass),
+ .instance_init = emc141x_initfn,
+ .abstract = true,
+};
+
+static const TypeInfo emc1413_info = {
+ .name = "emc1413",
+ .parent = TYPE_EMC141X,
+ .class_init = emc1413_class_init,
+};
+
+static const TypeInfo emc1414_info = {
+ .name = "emc1414",
+ .parent = TYPE_EMC141X,
+ .class_init = emc1414_class_init,
+};
+
+static void emc141x_register_types(void)
+{
+ type_register_static(&emc141x_info);
+ type_register_static(&emc1413_info);
+ type_register_static(&emc1414_info);
+}
+
+type_init(emc141x_register_types)
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 1cd48e8a0f..ce15ffceb9 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -9,6 +9,7 @@ softmmu_ss.add(when: 'CONFIG_PCI_TESTDEV', if_true: files('pci-testdev.c'))
softmmu_ss.add(when: 'CONFIG_SGA', if_true: files('sga.c'))
softmmu_ss.add(when: 'CONFIG_TMP105', if_true: files('tmp105.c'))
softmmu_ss.add(when: 'CONFIG_TMP421', if_true: files('tmp421.c'))
+softmmu_ss.add(when: 'CONFIG_EMC141X', if_true: files('emc141x.c'))
softmmu_ss.add(when: 'CONFIG_UNIMP', if_true: files('unimp.c'))
softmmu_ss.add(when: 'CONFIG_EMPTY_SLOT', if_true: files('empty_slot.c'))
softmmu_ss.add(when: 'CONFIG_LED', if_true: files('led.c'))
diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index 795784e5f3..e3d5e26058 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -71,6 +71,16 @@
#define INTR_CTRL_CMD_ABORT_EN (1 << 2)
#define INTR_CTRL_WRITE_PROTECT_EN (1 << 1)
+/* Command Control Register */
+#define R_CE_CMD_CTRL (0x0C / 4)
+#define CTRL_ADDR_BYTE0_DISABLE_SHIFT 4
+#define CTRL_DATA_BYTE0_DISABLE_SHIFT 0
+
+#define aspeed_smc_addr_byte_enabled(s, i) \
+ (!((s)->regs[R_CE_CMD_CTRL] & (1 << (CTRL_ADDR_BYTE0_DISABLE_SHIFT + (i)))))
+#define aspeed_smc_data_byte_enabled(s, i) \
+ (!((s)->regs[R_CE_CMD_CTRL] & (1 << (CTRL_DATA_BYTE0_DISABLE_SHIFT + (i)))))
+
/* CEx Control Register */
#define R_CTRL0 (0x10 / 4)
#define CTRL_IO_QPI (1 << 31)
@@ -702,19 +712,17 @@ static void aspeed_smc_flash_setup(AspeedSMCFlash *fl, uint32_t addr)
{
const AspeedSMCState *s = fl->controller;
uint8_t cmd = aspeed_smc_flash_cmd(fl);
- int i;
+ int i = aspeed_smc_flash_is_4byte(fl) ? 4 : 3;
/* Flash access can not exceed CS segment */
addr = aspeed_smc_check_segment_addr(fl, addr);
ssi_transfer(s->spi, cmd);
-
- if (aspeed_smc_flash_is_4byte(fl)) {
- ssi_transfer(s->spi, (addr >> 24) & 0xff);
+ while (i--) {
+ if (aspeed_smc_addr_byte_enabled(s, i)) {
+ ssi_transfer(s->spi, (addr >> (i * 8)) & 0xff);
+ }
}
- ssi_transfer(s->spi, (addr >> 16) & 0xff);
- ssi_transfer(s->spi, (addr >> 8) & 0xff);
- ssi_transfer(s->spi, (addr & 0xff));
/*
* Use fake transfers to model dummy bytes. The value should
@@ -988,6 +996,7 @@ static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size)
(addr >= s->r_timings &&
addr < s->r_timings + s->ctrl->nregs_timings) ||
addr == s->r_ce_ctrl ||
+ addr == R_CE_CMD_CTRL ||
addr == R_INTR_CTRL ||
addr == R_DUMMY_DATA ||
(s->ctrl->has_dma && addr == R_DMA_CTRL) ||
@@ -1276,6 +1285,8 @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data,
if (value != s->regs[R_SEG_ADDR0 + cs]) {
aspeed_smc_flash_set_segment(s, cs, value);
}
+ } else if (addr == R_CE_CMD_CTRL) {
+ s->regs[addr] = value & 0xff;
} else if (addr == R_DUMMY_DATA) {
s->regs[addr] = value & 0xff;
} else if (addr == R_INTR_CTRL) {
diff --git a/include/hw/misc/emc141x_regs.h b/include/hw/misc/emc141x_regs.h
new file mode 100644
index 0000000000..0560fb7c5c
--- /dev/null
+++ b/include/hw/misc/emc141x_regs.h
@@ -0,0 +1,37 @@
+/*
+ * SMSC EMC141X temperature sensor.
+ *
+ * Browse the data sheet:
+ *
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/20005274A.pdf
+ *
+ * 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 TMP105_REGS_H
+#define TMP105_REGS_H
+
+#define EMC1413_DEVICE_ID 0x21
+#define EMC1414_DEVICE_ID 0x25
+#define MANUFACTURER_ID 0x5d
+#define REVISION 0x04
+
+/* the EMC141X registers */
+#define EMC141X_TEMP_HIGH0 0x00
+#define EMC141X_TEMP_HIGH1 0x01
+#define EMC141X_TEMP_HIGH2 0x23
+#define EMC141X_TEMP_HIGH3 0x2a
+#define EMC141X_TEMP_MAX_HIGH0 0x05
+#define EMC141X_TEMP_MIN_HIGH0 0x06
+#define EMC141X_TEMP_MAX_HIGH1 0x07
+#define EMC141X_TEMP_MIN_HIGH1 0x08
+#define EMC141X_TEMP_MAX_HIGH2 0x15
+#define EMC141X_TEMP_MIN_HIGH2 0x16
+#define EMC141X_TEMP_MAX_HIGH3 0x2c
+#define EMC141X_TEMP_MIN_HIGH3 0x2d
+#define EMC141X_DEVICE_ID 0xfd
+#define EMC141X_MANUFACTURER_ID 0xfe
+#define EMC141X_REVISION 0xff
+
+#endif
diff --git a/tests/qtest/emc141x-test.c b/tests/qtest/emc141x-test.c
new file mode 100644
index 0000000000..714058806a
--- /dev/null
+++ b/tests/qtest/emc141x-test.c
@@ -0,0 +1,81 @@
+/*
+ * QTest testcase for the EMC141X temperature sensor
+ *
+ * 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 "libqtest-single.h"
+#include "libqos/qgraph.h"
+#include "libqos/i2c.h"
+#include "qapi/qmp/qdict.h"
+#include "hw/misc/emc141x_regs.h"
+
+#define EMC1414_TEST_ID "emc1414-test"
+
+static int qmp_emc1414_get_temperature(const char *id)
+{
+ QDict *response;
+ int ret;
+
+ response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
+ "'property': 'temperature0' } }", id);
+ g_assert(qdict_haskey(response, "return"));
+ ret = qdict_get_int(response, "return");
+ qobject_unref(response);
+ return ret;
+}
+
+static void qmp_emc1414_set_temperature(const char *id, int value)
+{
+ QDict *response;
+
+ response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
+ "'property': 'temperature0', 'value': %d } }", id, value);
+ g_assert(qdict_haskey(response, "return"));
+ qobject_unref(response);
+}
+
+static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
+{
+ uint16_t value;
+ QI2CDevice *i2cdev = (QI2CDevice *)obj;
+
+ value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
+ g_assert_cmpuint(value, ==, 0);
+
+ value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
+ g_assert_cmphex(value, ==, 0);
+
+ /* The default max value is 85C, 0x55=85 */
+ value = i2c_get8(i2cdev, EMC141X_TEMP_MAX_HIGH0);
+ g_assert_cmphex(value, ==, 0x55);
+
+ value = i2c_get8(i2cdev, EMC141X_TEMP_MIN_HIGH0);
+ g_assert_cmphex(value, ==, 0);
+
+ /* 3000mc = 30C */
+ qmp_emc1414_set_temperature(EMC1414_TEST_ID, 30000);
+ value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
+ g_assert_cmpuint(value, ==, 30000);
+
+ value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
+ g_assert_cmphex(value, ==, 30);
+
+}
+
+static void emc1414_register_nodes(void)
+{
+ QOSGraphEdgeOptions opts = {
+ .extra_device_opts = "id=" EMC1414_TEST_ID ",address=0x70"
+ };
+ add_qi2c_address(&opts, &(QI2CAddress) { 0x70 });
+
+ qos_node_create_driver("emc1414", i2c_device_create);
+ qos_node_consumes("emc1414", "i2c-bus", &opts);
+
+ qos_add_test("tx-rx", "emc1414", send_and_receive, NULL);
+}
+libqos_init(emc1414_register_nodes);
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 4ca83ce605..6a67c538be 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -189,6 +189,7 @@ qos_test_ss.add(
'sdhci-test.c',
'spapr-phb-test.c',
'tmp105-test.c',
+ 'emc141x-test.c',
'usb-hcd-ohci-test.c',
'virtio-test.c',
'virtio-blk-test.c',
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-12-18 13:18:43 +0100