Am Fr., 12. Juni 2026 um 18:48 Uhr schrieb Emmanuel Blot <[email protected]>: > > The ADC128D818 is a TI 12-bit, 8-channel I2C ADC used on several > OpenBMC platforms for voltage and temperature monitoring. > > Implement the device with: > - four operating modes > - 12-bit voltage conversion from QOM inputs > - 9-bit temperature conversion from milli-degree Celsius QOM inputs > - switchable internal or external voltage reference > - per-channel high/low limit registers > - interrupt support > - software reset > - one-shot conversion support in shutdown mode > > Signed-off-by: Emmanuel Blot <[email protected]> > --- > hw/sensor/Kconfig | 4 + > hw/sensor/adc128d818.c | 703 > +++++++++++++++++++++++++++++++++++++++++ > hw/sensor/meson.build | 1 + > hw/sensor/trace-events | 8 + > include/hw/sensor/adc128d818.h | 12 + > 5 files changed, 728 insertions(+) > > diff --git a/hw/sensor/Kconfig b/hw/sensor/Kconfig > index bc6331b4ab..b459ac2240 100644 > --- a/hw/sensor/Kconfig > +++ b/hw/sensor/Kconfig > @@ -1,3 +1,7 @@ > +config ADC128D818 > + bool > + depends on I2C > + > config TMP105 > bool > depends on I2C > diff --git a/hw/sensor/adc128d818.c b/hw/sensor/adc128d818.c > new file mode 100644 > index 0000000000..982c98bc18 > --- /dev/null > +++ b/hw/sensor/adc128d818.c > @@ -0,0 +1,703 @@ > +/* > + * Texas Instruments ADC128D818 12-bit 8-channel ADC with I2C interface > + * > + * SPDX-License-Identifier: GPL-2.0-or-later > + */ > + > +#include "qemu/osdep.h" > +#include "qemu/log.h" > +#include "qapi/error.h" > +#include "qapi/visitor.h" > +#include "qom/object.h" > +#include "hw/sensor/adc128d818.h" > +#include "hw/core/irq.h" > +#include "hw/core/qdev-properties.h" > +#include "hw/i2c/i2c.h" > +#include "migration/vmstate.h" > +#include "trace.h" > + > +/* clang-format off */ > + > +/* Register addresses */ > +#define REG_CONFIG 0x00u > +#define REG_INT_STATUS 0x01u > +#define REG_INT_MASK 0x03u > +#define REG_CONV_RATE 0x07u > +#define REG_CH_DISABLE 0x08u > +#define REG_ONE_SHOT 0x09u > +#define REG_DEEP_SHUTDOWN 0x0Au > +#define REG_ADV_CONFIG 0x0Bu > +#define REG_BUSY_STATUS 0x0Cu > + > +/* Channel Reading Registers (16-bit, read-only) */ > +#define REG_CH_READING_BASE 0x20u > +#define REG_CH_READING_LAST 0x27u > + > +/* Limit Registers (8-bit, read/write) */ > +#define REG_LIMIT_BASE 0x2Au > +#define REG_LIMIT_LAST 0x39u > + > +/* ID Registers (read-only) */ > +#define REG_MANUFACTURER_ID 0x3Eu > +#define REG_REVISION_ID 0x3Fu > + > +/* Configuration Register (0x00) bitfields */ > +#define CONFIG_START BIT(0) > +#define CONFIG_INT_ENABLE BIT(1) > +#define CONFIG_INT_CLEAR BIT(3) > +#define CONFIG_INITIALIZATION BIT(7) > +#define CONFIG_WR_MASK \ > + (CONFIG_START | CONFIG_INT_ENABLE | CONFIG_INT_CLEAR) > + > +/* Advanced Configuration Register (0x0B) bitfields */ > +#define ADV_CONFIG_EXT_REF_EN BIT(0) > +#define ADV_CONFIG_MODE_SHIFT 1u > +#define ADV_CONFIG_MODE_MASK (0x3u << ADV_CONFIG_MODE_SHIFT) > +#define ADV_CONFIG_WR_MASK \ > + (ADV_CONFIG_EXT_REF_EN | ADV_CONFIG_MODE_MASK) > + > +/* Busy Status Register (0x0C) bitfields */ > +#define BUSY_STATUS_NOT_READY BIT(1) > + > +/* Conversion Rate Register (0x07) bitfields */ > +#define CONV_RATE_MASK 0x01u > + > +/* Deep Shutdown Register (0x0A) bitfields */ > +#define DEEP_SHUTDOWN_EN 0x01u > + > +/* Device constants */ > +#define ADC128D818_NUM_CHANNELS 8u > +#define ADC128D818_NUM_REGS 0x40u > + > +#define ADC128D818_INTERNAL_VREF_MV 2560u > +#define ADC128D818_MAX_VDD_MV 5500u > +#define ADC128D818_MANUFACTURER_ID_VAL 0x01u > +#define ADC128D818_REVISION_ID_VAL 0x09u > + > +/* ADC resolution */ > +#define ADC128D818_ADC_RESOLUTION 4096u > +#define ADC128D818_ADC_MAX 4095u > + > +/* Temperature: 0.5 deg C per LSb = 500 milli-degrees per LSb */ > +#define ADC128D818_TEMP_LSB_MC 500 > +#define ADC128D818_TEMP_RAW_MIN (-256) > +#define ADC128D818_TEMP_RAW_MAX 255 > + > +/* clang-format on */ > + > +typedef struct ADC128D818State ADC128D818State; > +DECLARE_INSTANCE_CHECKER(ADC128D818State, ADC128D818, TYPE_ADC128D818) > + > +struct ADC128D818State { > + I2CSlave i2c; > + > + qemu_irq irq; > + > + uint8_t len; > + uint8_t pointer; > + uint8_t rx_byte; > + > + uint8_t regs[ADC128D818_NUM_REGS]; > + uint16_t channel[ADC128D818_NUM_CHANNELS]; > + > + int16_t ain[ADC128D818_NUM_CHANNELS]; /* mV */ > + int32_t temperature; /* milli-degrees Celsius */ > + uint16_t ext_vref; /* mV, 0 means not connected */ > + bool temp_alarm; /* temperature high-limit alarm latched */ > + > + char *description; > +}; > + > +static uint16_t adc128d818_get_vref(const ADC128D818State *s) > +{ > + if (s->regs[REG_ADV_CONFIG] & ADV_CONFIG_EXT_REF_EN) { > + if (s->ext_vref > 0u) { > + return s->ext_vref; > + } > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: external VREF selected but not" > + " connected, falling back to internal\n", > + __func__, s->description); > + } > + > + return ADC128D818_INTERNAL_VREF_MV; > +} > + > +static uint8_t adc128d818_get_mode(const ADC128D818State *s) > +{ > + return (s->regs[REG_ADV_CONFIG] & ADV_CONFIG_MODE_MASK) >> > + ADV_CONFIG_MODE_SHIFT; > +} > + > +static bool adc128d818_is_temp_channel(const ADC128D818State *s, unsigned ch) > +{ > + if (ch != 7u) { > + return false; > + } > + > + return adc128d818_get_mode(s) != 1u; > +} > + > +static bool adc128d818_is_reserved_channel(const ADC128D818State *s, > + unsigned ch) > +{ > + switch (adc128d818_get_mode(s)) { > + case 2u: > + return ch >= 4u && ch <= 6u; > + case 3u: > + return ch == 6u; > + default: > + return false; > + } > +} > + > +static int16_t adc128d818_channel_voltage(const ADC128D818State *s, unsigned > ch) > +{ > + switch (adc128d818_get_mode(s)) { > + case 2u: > + switch (ch) { > + case 0u: > + return (int16_t)(s->ain[0] - s->ain[1]); > + case 1u: > + return (int16_t)(s->ain[3] - s->ain[2]); > + case 2u: > + return (int16_t)(s->ain[4] - s->ain[5]); > + case 3u: > + return (int16_t)(s->ain[7] - s->ain[6]); > + default: > + return 0; > + } > + case 3u: > + switch (ch) { > + case 4u: > + return (int16_t)(s->ain[4] - s->ain[5]); > + case 5u: > + return (int16_t)(s->ain[7] - s->ain[6]); > + default: > + return s->ain[ch]; > + } > + default: > + return s->ain[ch]; > + } > +} > + > +static void adc128d818_update_irq(ADC128D818State *s) > +{ > + uint8_t cfg = s->regs[REG_CONFIG]; > + uint8_t active; > + bool level; > + > + active = s->regs[REG_INT_STATUS] & ~s->regs[REG_INT_MASK]; > + > + /* INT pin is active-low */ > + level = !((cfg & CONFIG_INT_ENABLE) && !(cfg & CONFIG_INT_CLEAR) && > + (active != 0u)); > + > + trace_adc128d818_irq(s->description, level); > + qemu_set_irq(s->irq, level); > +} > + > +static bool adc128d818_monitoring_active(const ADC128D818State *s) > +{ > + if (s->regs[REG_DEEP_SHUTDOWN] & DEEP_SHUTDOWN_EN) { > + return false; > + } > + if (!(s->regs[REG_CONFIG] & CONFIG_START)) { > + return false; > + } > + if (s->regs[REG_CONFIG] & CONFIG_INT_CLEAR) { > + return false; > + } > + > + return true; > +} > + > +static void adc128d818_check_limits(ADC128D818State *s) > +{ > + uint8_t disabled = s->regs[REG_CH_DISABLE]; > + uint8_t int_status = 0u; > + > + for (unsigned ch = 0u; ch < ADC128D818_NUM_CHANNELS; ch++) { > + if ((disabled & (1u << ch)) || > + adc128d818_is_reserved_channel(s, ch)) { > + continue; > + } > + > + if (adc128d818_is_temp_channel(s, ch)) { > + int raw = s->temperature / ADC128D818_TEMP_LSB_MC; > + int thot; > + int thyst; > + > + raw = MAX(ADC128D818_TEMP_RAW_MIN, > + MIN(ADC128D818_TEMP_RAW_MAX, raw)); > + thot = (int)(int8_t)s->regs[REG_LIMIT_BASE + ch * 2u] * 2; > + thyst = (int)(int8_t)s->regs[REG_LIMIT_BASE + ch * 2u + 1u] * 2; > + > + if (raw > thot) { > + s->temp_alarm = true; > + } else if (raw <= thyst) { > + s->temp_alarm = false; > + } > + if (s->temp_alarm) { > + int_status |= (1u << ch); > + } > + } else { > + uint8_t msb = (uint8_t)(s->channel[ch] >> 8u); > + uint8_t high_lim = s->regs[REG_LIMIT_BASE + ch * 2u]; > + uint8_t low_lim = s->regs[REG_LIMIT_BASE + ch * 2u + 1u]; > + > + if (msb > high_lim || msb <= low_lim) { > + int_status |= (1u << ch); > + } > + } > + } > + > + s->regs[REG_INT_STATUS] = int_status; > + adc128d818_update_irq(s); > +} > + > +static void adc128d818_convert(ADC128D818State *s) > +{ > + uint8_t disabled; > + uint16_t vref; > + > + disabled = s->regs[REG_CH_DISABLE]; > + vref = adc128d818_get_vref(s); > + > + for (unsigned ch = 0u; ch < ADC128D818_NUM_CHANNELS; ch++) { > + if ((disabled & (1u << ch)) || > + adc128d818_is_reserved_channel(s, ch)) { > + continue; > + } > + > + if (adc128d818_is_temp_channel(s, ch)) { > + int32_t raw = s->temperature / ADC128D818_TEMP_LSB_MC; > + > + raw = > + MAX(ADC128D818_TEMP_RAW_MIN, MIN(ADC128D818_TEMP_RAW_MAX, > raw)); > + s->channel[ch] = (uint16_t)(((unsigned)raw & 0x1FFu) << 7u); > + } else { > + int16_t vin = adc128d818_channel_voltage(s, ch); > + int32_t dout; > + > + dout = vin * (int32_t)ADC128D818_ADC_RESOLUTION / vref; > + dout = MAX(0, MIN((int32_t)ADC128D818_ADC_MAX, dout)); > + s->channel[ch] = (uint16_t)(dout << 4u); > + } > + > + trace_adc128d818_convert(s->description, ch, s->channel[ch]); > + } > + > + s->regs[REG_BUSY_STATUS] &= ~BUSY_STATUS_NOT_READY; > + > + adc128d818_check_limits(s); > +} > + > +static uint8_t adc128d818_read_channel(ADC128D818State *s, unsigned ch) > +{ > + uint8_t val; > + > + if (s->rx_byte == 0u) { > + val = (uint8_t)(s->channel[ch] >> 8u); > + trace_adc128d818_read_channel(s->description, ch, s->channel[ch]); > + } else { > + val = (uint8_t)(s->channel[ch] & 0xFFu); > + } > + s->rx_byte ^= 1u; > + > + return val; > +} > + > +static uint8_t adc128d818_read_reg(ADC128D818State *s, uint8_t reg) > +{ > + uint8_t val; > + > + switch (reg) { > + case REG_INT_STATUS: > + val = s->regs[REG_INT_STATUS]; > + s->regs[REG_INT_STATUS] = 0x00u; > + if (adc128d818_monitoring_active(s)) { > + adc128d818_check_limits(s); > + } else { > + adc128d818_update_irq(s); > + } > + trace_adc128d818_read(s->description, reg, val); > + return val; > + case REG_CONFIG: > + case REG_INT_MASK: > + case REG_CONV_RATE: > + case REG_CH_DISABLE: > + case REG_ONE_SHOT: > + case REG_DEEP_SHUTDOWN: > + case REG_ADV_CONFIG: > + case REG_BUSY_STATUS: > + case REG_LIMIT_BASE ... REG_LIMIT_LAST: > + case REG_MANUFACTURER_ID: > + case REG_REVISION_ID: > + trace_adc128d818_read(s->description, reg, s->regs[reg]); > + return s->regs[reg]; > + case REG_CH_READING_BASE ... REG_CH_READING_LAST: > + return adc128d818_read_channel(s, reg - REG_CH_READING_BASE); > + default: > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: read from undefined register 0x%02x\n", > + __func__, s->description, reg); > + return 0x00u; > + } > +} > + > +static void adc128d818_write_reg(ADC128D818State *s, uint8_t reg, uint8_t > val); > + > +static void adc128d818_reset_regs(ADC128D818State *s) > +{ > + memset(s->regs, 0, sizeof(s->regs)); > + memset(s->channel, 0, sizeof(s->channel)); > + s->temp_alarm = false; > + > + s->regs[REG_CONFIG] = 0x08u; > + s->regs[REG_BUSY_STATUS] = 0x02u; > + s->regs[REG_MANUFACTURER_ID] = ADC128D818_MANUFACTURER_ID_VAL; > + s->regs[REG_REVISION_ID] = ADC128D818_REVISION_ID_VAL; > + > + for (unsigned ch = 0u; ch < ADC128D818_NUM_CHANNELS; ch++) { > + s->regs[REG_LIMIT_BASE + ch * 2u] = 0xFFu; > + } > + > + s->pointer = 0x00u; > + s->len = 0u; > + s->rx_byte = 0u; > + > + adc128d818_update_irq(s); > +} > + > +static void adc128d818_write_reg(ADC128D818State *s, uint8_t reg, uint8_t > val) > +{ > + trace_adc128d818_write(s->description, reg, val); > + > + switch (reg) { > + case REG_CONFIG: > + if (val & CONFIG_INITIALIZATION) { > + trace_adc128d818_reset(s->description, "reg"); > + adc128d818_reset_regs(s); > + break; > + } > + s->regs[REG_CONFIG] = val & CONFIG_WR_MASK; > + if ((val & CONFIG_START) && !(val & CONFIG_INT_CLEAR) && > + !(s->regs[REG_DEEP_SHUTDOWN] & DEEP_SHUTDOWN_EN)) { > + adc128d818_convert(s); > + } > + adc128d818_update_irq(s); > + break; > + case REG_INT_MASK: > + s->regs[REG_INT_MASK] = val; > + adc128d818_update_irq(s); > + break; > + case REG_CONV_RATE: > + if (s->regs[REG_CONFIG] & CONFIG_START) { > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: CONV_RATE written while running\n", > + __func__, s->description); > + break; > + } > + s->regs[REG_CONV_RATE] = val & CONV_RATE_MASK; > + break; > + case REG_CH_DISABLE: > + if (s->regs[REG_CONFIG] & CONFIG_START) { > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: CH_DISABLE written while running\n", > + __func__, s->description); > + break; > + } > + s->regs[REG_CH_DISABLE] = val; > + memset(s->channel, 0, sizeof(s->channel)); > + s->regs[REG_INT_STATUS] = 0x00u; > + s->temp_alarm = false; > + adc128d818_update_irq(s); > + break; > + case REG_ONE_SHOT: > + if (!(s->regs[REG_CONFIG] & CONFIG_START)) { > + adc128d818_convert(s); > + } > + break; > + case REG_DEEP_SHUTDOWN: > + if ((val & DEEP_SHUTDOWN_EN) && (s->regs[REG_CONFIG] & > CONFIG_START)) { > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: DEEP_SHUTDOWN set while running\n", > + __func__, s->description); > + break; > + } > + s->regs[REG_DEEP_SHUTDOWN] = val & DEEP_SHUTDOWN_EN; > + break; > + case REG_ADV_CONFIG: > + if (s->regs[REG_CONFIG] & CONFIG_START) { > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: ADV_CONFIG written while running\n", > + __func__, s->description); > + break; > + } > + s->regs[REG_ADV_CONFIG] = val & ADV_CONFIG_WR_MASK; > + memset(s->channel, 0, sizeof(s->channel)); > + s->regs[REG_INT_STATUS] = 0x00u; > + s->temp_alarm = false; > + adc128d818_update_irq(s); > + break; > + case REG_LIMIT_BASE ... REG_LIMIT_LAST: > + s->regs[reg] = val; > + break; > + case REG_INT_STATUS: > + case REG_BUSY_STATUS: > + case REG_MANUFACTURER_ID: > + case REG_REVISION_ID: > + case REG_CH_READING_BASE ... REG_CH_READING_LAST: > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: write to read-only register 0x%02x\n", > + __func__, s->description, reg); > + break; > + default: > + qemu_log_mask(LOG_GUEST_ERROR, > + "%s: %s: write to undefined register 0x%02x\n", > + __func__, s->description, reg); > + break; > + } > +} > + > +static uint8_t adc128d818_recv(I2CSlave *i2c) > +{ > + ADC128D818State *s = ADC128D818(i2c); > + > + return adc128d818_read_reg(s, s->pointer); > +} > + > +static int adc128d818_send(I2CSlave *i2c, uint8_t data) > +{ > + ADC128D818State *s = ADC128D818(i2c); > + > + if (s->len == 0u) { > + s->pointer = data; > + s->len++; > + } else { > + adc128d818_write_reg(s, s->pointer, data); > + } > + > + return 0; > +} > + > +static int adc128d818_event(I2CSlave *i2c, enum i2c_event event) > +{ > + ADC128D818State *s = ADC128D818(i2c); > + > + s->len = 0u; > + s->rx_byte = 0u; > + > + return 0; > +} > + > +static void adc128d818_get_ain(Object *obj, Visitor *v, const char *name, > + void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value; > + int ch_num; > + int rc; > + > + rc = sscanf(name, "ain%d", &ch_num); > + if (rc != 1 || ch_num < 0 || ch_num >= (int)ADC128D818_NUM_CHANNELS) { > + error_setg(errp, "%s: %s: invalid channel '%s'", __func__, > + s->description, name); > + return; > + } > + > + value = s->ain[ch_num]; > + visit_type_int(v, name, &value, errp); > +} > + > +static void adc128d818_set_ain(Object *obj, Visitor *v, const char *name, > + void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value; > + int ch_num; > + int rc; > + > + if (!visit_type_int(v, name, &value, errp)) { > + return; > + } > + > + rc = sscanf(name, "ain%d", &ch_num); > + if (rc != 1 || ch_num < 0 || ch_num >= (int)ADC128D818_NUM_CHANNELS) { > + error_setg(errp, "%s: %s: invalid channel '%s'", __func__, > + s->description, name); > + return; > + } > + > + if (value < INT16_MIN || value > INT16_MAX) { > + error_setg(errp, "%s: %s: value %" PRId64 " out of range for '%s'", > + __func__, s->description, value, name); > + return; > + } > + > + s->ain[ch_num] = (int16_t)value; > + > + if (adc128d818_monitoring_active(s)) { > + adc128d818_convert(s); > + } > +} > + > +static void adc128d818_get_temperature( > + Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value = s->temperature; > + > + visit_type_int(v, name, &value, errp); > +} > + > +static void adc128d818_set_temperature( > + Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value; > + > + if (!visit_type_int(v, name, &value, errp)) { > + return; > + } > + > + if (value < INT32_MIN || value > INT32_MAX) { > + error_setg(errp, "%s: %s: value %" PRId64 " out of range", __func__, > + s->description, value); > + return; > + } > + > + s->temperature = (int32_t)value; > + > + if (adc128d818_monitoring_active(s)) { > + adc128d818_convert(s); > + } > +} > + > +/* clang-format off */ > +static const VMStateDescription adc128d818_vmstate = { > + .name = "ADC128D818", > + .version_id = 0, > + .minimum_version_id = 0, > + .fields = (VMStateField[]) { > + VMSTATE_UINT8(len, ADC128D818State), > + VMSTATE_UINT8(pointer, ADC128D818State), > + VMSTATE_UINT8(rx_byte, ADC128D818State), > + VMSTATE_UINT8_ARRAY(regs, ADC128D818State, > + ADC128D818_NUM_REGS), > + VMSTATE_UINT16_ARRAY(channel, ADC128D818State, > + ADC128D818_NUM_CHANNELS), > + VMSTATE_INT16_ARRAY(ain, ADC128D818State, > + ADC128D818_NUM_CHANNELS), > + VMSTATE_INT32(temperature, ADC128D818State), > + VMSTATE_UINT16(ext_vref, ADC128D818State), > + VMSTATE_BOOL(temp_alarm, ADC128D818State), > + VMSTATE_I2C_SLAVE(i2c, ADC128D818State), > + VMSTATE_END_OF_LIST() > + } > +}; > +/* clang-format on */ > + > +static void adc128d818_reset_hold(Object *obj, ResetType type) > +{ > + ADC128D818State *s = ADC128D818(obj); > + > + trace_adc128d818_reset(s->description, "hw"); > + adc128d818_reset_regs(s); > +} > + > +static void adc128d818_get_ext_vref( > + Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value = (int64_t)s->ext_vref; > + > + visit_type_int(v, name, &value, errp); > +} > + > +static void adc128d818_set_ext_vref( > + Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(obj); > + int64_t value; > + > + if (!visit_type_int(v, name, &value, errp)) { > + return; > + } > + > + if (value < 0 || value > ADC128D818_MAX_VDD_MV) { > + error_setg(errp, > + "%s: %s: ext-vref-mv %" PRId64 " out of range (0..%u mV)", > + __func__, s->description, value, ADC128D818_MAX_VDD_MV); > + return; > + } > + > + s->ext_vref = (uint16_t)value; > + > + if (adc128d818_monitoring_active(s)) { > + adc128d818_convert(s); > + } > +} > + > +static void adc128d818_initfn(Object *obj) > +{ > + for (unsigned ch = 0u; ch < ADC128D818_NUM_CHANNELS; ch++) { > + char *name = g_strdup_printf("ain%u", ch); > + > + object_property_add(obj, name, "int", adc128d818_get_ain, > + adc128d818_set_ain, NULL, NULL); > + g_free(name); > + } > + > + object_property_add(obj, "temperature", "int", > adc128d818_get_temperature, > + adc128d818_set_temperature, NULL, NULL); > + object_property_add(obj, "ext-vref-mv", "int", adc128d818_get_ext_vref, > + adc128d818_set_ext_vref, NULL, NULL); > +} > + > +static void adc128d818_realize(DeviceState *dev, Error **errp) > +{ > + ADC128D818State *s = ADC128D818(dev); > + > + if (!s->description) { > + s->description = g_strdup(object_get_typename(OBJECT(dev))); > + } > + > + qdev_init_gpio_out(dev, &s->irq, 1u); > +} > + > +/* clang-format off */ > +static const Property adc128d818_properties[] = { > + DEFINE_PROP_STRING("description", ADC128D818State, description), > +}; > +/* clang-format on */ > + > +static void adc128d818_class_init(ObjectClass *klass, const void *data) > +{ > + DeviceClass *dc = DEVICE_CLASS(klass); > + I2CSlaveClass *ic = I2C_SLAVE_CLASS(klass); > + ResettableClass *rc = RESETTABLE_CLASS(klass); > + > + ic->event = adc128d818_event; > + ic->recv = adc128d818_recv; > + ic->send = adc128d818_send; > + dc->realize = adc128d818_realize; > + rc->phases.hold = adc128d818_reset_hold; > + dc->vmsd = &adc128d818_vmstate; > + device_class_set_props(dc, adc128d818_properties); > +} > + > +/* clang-format off */ > +static const TypeInfo adc128d818_types[] = { > + { > + .name = TYPE_ADC128D818, > + .parent = TYPE_I2C_SLAVE, > + .instance_init = adc128d818_initfn, > + .instance_size = sizeof(ADC128D818State), > + .class_init = adc128d818_class_init, > + }, > +}; > +/* clang-format on */ > + > +DEFINE_TYPES(adc128d818_types) > diff --git a/hw/sensor/meson.build b/hw/sensor/meson.build > index 420fdc3359..fe36c9ef91 100644 > --- a/hw/sensor/meson.build > +++ b/hw/sensor/meson.build > @@ -1,3 +1,4 @@ > +system_ss.add(when: 'CONFIG_ADC128D818', if_true: files('adc128d818.c')) > system_ss.add(when: 'CONFIG_TMP105', if_true: files('tmp105.c')) > system_ss.add(when: 'CONFIG_TMP421', if_true: files('tmp421.c')) > system_ss.add(when: 'CONFIG_DPS310', if_true: files('dps310.c')) > diff --git a/hw/sensor/trace-events b/hw/sensor/trace-events > index a3fe54fa6d..5a3630f7bb 100644 > --- a/hw/sensor/trace-events > +++ b/hw/sensor/trace-events > @@ -1,5 +1,13 @@ > # See docs/devel/tracing.rst for syntax documentation. > > +# adc128d818.c > +adc128d818_read(const char *id, uint8_t reg, uint8_t value) "%s reg 0x%02x > val 0x%02x" > +adc128d818_read_channel(const char *id, uint8_t channel, uint16_t value) "%s > ch %u val 0x%04x" > +adc128d818_write(const char *id, uint8_t reg, uint8_t value) "%s reg 0x%02x > val 0x%02x" > +adc128d818_convert(const char *id, uint8_t channel, uint16_t value) "%s ch > %u val 0x%04x" > +adc128d818_irq(const char *id, bool level) "%s level %u" > +adc128d818_reset(const char *id, const char *source) "%s %s" > + > # tmp105.c > tmp105_read(uint8_t dev, uint8_t addr) "device: 0x%02x, addr: 0x%02x" > tmp105_write(uint8_t dev, uint8_t addr) "device: 0x%02x, addr 0x%02x" > diff --git a/include/hw/sensor/adc128d818.h b/include/hw/sensor/adc128d818.h > new file mode 100644 > index 0000000000..ce7e94d2b4 > --- /dev/null > +++ b/include/hw/sensor/adc128d818.h > @@ -0,0 +1,12 @@ > +/* > + * Texas Instruments ADC128D818 12-bit 8-channel ADC with I2C interface > + * > + * SPDX-License-Identifier: GPL-2.0-or-later > + */ > + > +#ifndef HW_SENSOR_ADC128D818_H > +#define HW_SENSOR_ADC128D818_H > + > +#define TYPE_ADC128D818 "adc128d818" > + > +#endif > > -- > 2.50.1 >
Reviewed-by: Alexander Hansen <[email protected]> Tested-by: Alexander Hansen <[email protected]>
