From: Titus Rwantare <tit...@google.com> The ADM1266 is a cascadable super sequencer with margin control and fault recording. This commit adds basic support for its PMBus commands and models the identification registers that can be modified in a firmware update.
Reviewed-by: Hao Wu <wuhao...@google.com> Acked-by: Corey Minyard <cminy...@mvista.com> Signed-off-by: Titus Rwantare <tit...@google.com> [PMD: Cover file in MAINTAINERS] Message-ID: <20231023-staging-pmbus-v3-v4-5-07a8cb7cd...@google.com> Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org> --- MAINTAINERS | 1 + hw/sensor/adm1266.c | 254 ++++++++++++++++++++++++++++++++++++++++++ hw/arm/Kconfig | 1 + hw/sensor/Kconfig | 5 + hw/sensor/meson.build | 1 + 5 files changed, 262 insertions(+) create mode 100644 hw/sensor/adm1266.c diff --git a/MAINTAINERS b/MAINTAINERS index 126cddd285..e6a2f57442 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -859,6 +859,7 @@ M: Hao Wu <wuhao...@google.com> L: qemu-...@nongnu.org S: Supported F: hw/*/npcm* +F: hw/sensor/adm1266.c F: include/hw/*/npcm* F: tests/qtest/npcm* F: pc-bios/npcm7xx_bootrom.bin diff --git a/hw/sensor/adm1266.c b/hw/sensor/adm1266.c new file mode 100644 index 0000000000..5ae4f82ba1 --- /dev/null +++ b/hw/sensor/adm1266.c @@ -0,0 +1,254 @@ +/* + * Analog Devices ADM1266 Cascadable Super Sequencer with Margin Control and + * Fault Recording with PMBus + * + * https://www.analog.com/media/en/technical-documentation/data-sheets/adm1266.pdf + * + * Copyright 2023 Google LLC + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "hw/i2c/pmbus_device.h" +#include "hw/irq.h" +#include "migration/vmstate.h" +#include "qapi/error.h" +#include "qapi/visitor.h" +#include "qemu/log.h" +#include "qemu/module.h" + +#define TYPE_ADM1266 "adm1266" +OBJECT_DECLARE_SIMPLE_TYPE(ADM1266State, ADM1266) + +#define ADM1266_BLACKBOX_CONFIG 0xD3 +#define ADM1266_PDIO_CONFIG 0xD4 +#define ADM1266_READ_STATE 0xD9 +#define ADM1266_READ_BLACKBOX 0xDE +#define ADM1266_SET_RTC 0xDF +#define ADM1266_GPIO_SYNC_CONFIGURATION 0xE1 +#define ADM1266_BLACKBOX_INFORMATION 0xE6 +#define ADM1266_PDIO_STATUS 0xE9 +#define ADM1266_GPIO_STATUS 0xEA + +/* Defaults */ +#define ADM1266_OPERATION_DEFAULT 0x80 +#define ADM1266_CAPABILITY_DEFAULT 0xA0 +#define ADM1266_CAPABILITY_NO_PEC 0x20 +#define ADM1266_PMBUS_REVISION_DEFAULT 0x22 +#define ADM1266_MFR_ID_DEFAULT "ADI" +#define ADM1266_MFR_ID_DEFAULT_LEN 32 +#define ADM1266_MFR_MODEL_DEFAULT "ADM1266-A1" +#define ADM1266_MFR_MODEL_DEFAULT_LEN 32 +#define ADM1266_MFR_REVISION_DEFAULT "25" +#define ADM1266_MFR_REVISION_DEFAULT_LEN 8 + +#define ADM1266_NUM_PAGES 17 +/** + * PAGE Index + * Page 0 VH1. + * Page 1 VH2. + * Page 2 VH3. + * Page 3 VH4. + * Page 4 VP1. + * Page 5 VP2. + * Page 6 VP3. + * Page 7 VP4. + * Page 8 VP5. + * Page 9 VP6. + * Page 10 VP7. + * Page 11 VP8. + * Page 12 VP9. + * Page 13 VP10. + * Page 14 VP11. + * Page 15 VP12. + * Page 16 VP13. + */ +typedef struct ADM1266State { + PMBusDevice parent; + + char mfr_id[32]; + char mfr_model[32]; + char mfr_rev[8]; +} ADM1266State; + +static const uint8_t adm1266_ic_device_id[] = {0x03, 0x41, 0x12, 0x66}; +static const uint8_t adm1266_ic_device_rev[] = {0x08, 0x01, 0x08, 0x07, 0x0, + 0x0, 0x07, 0x41, 0x30}; + +static void adm1266_exit_reset(Object *obj) +{ + ADM1266State *s = ADM1266(obj); + PMBusDevice *pmdev = PMBUS_DEVICE(obj); + + pmdev->page = 0; + pmdev->capability = ADM1266_CAPABILITY_NO_PEC; + + for (int i = 0; i < ADM1266_NUM_PAGES; i++) { + pmdev->pages[i].operation = ADM1266_OPERATION_DEFAULT; + pmdev->pages[i].revision = ADM1266_PMBUS_REVISION_DEFAULT; + pmdev->pages[i].vout_mode = 0; + pmdev->pages[i].read_vout = pmbus_data2linear_mode(12, 0); + pmdev->pages[i].vout_margin_high = pmbus_data2linear_mode(15, 0); + pmdev->pages[i].vout_margin_low = pmbus_data2linear_mode(3, 0); + pmdev->pages[i].vout_ov_fault_limit = pmbus_data2linear_mode(16, 0); + pmdev->pages[i].revision = ADM1266_PMBUS_REVISION_DEFAULT; + } + + strncpy(s->mfr_id, ADM1266_MFR_ID_DEFAULT, 4); + strncpy(s->mfr_model, ADM1266_MFR_MODEL_DEFAULT, 11); + strncpy(s->mfr_rev, ADM1266_MFR_REVISION_DEFAULT, 3); +} + +static uint8_t adm1266_read_byte(PMBusDevice *pmdev) +{ + ADM1266State *s = ADM1266(pmdev); + + switch (pmdev->code) { + case PMBUS_MFR_ID: /* R/W block */ + pmbus_send_string(pmdev, s->mfr_id); + break; + + case PMBUS_MFR_MODEL: /* R/W block */ + pmbus_send_string(pmdev, s->mfr_model); + break; + + case PMBUS_MFR_REVISION: /* R/W block */ + pmbus_send_string(pmdev, s->mfr_rev); + break; + + case PMBUS_IC_DEVICE_ID: + pmbus_send(pmdev, adm1266_ic_device_id, sizeof(adm1266_ic_device_id)); + break; + + case PMBUS_IC_DEVICE_REV: + pmbus_send(pmdev, adm1266_ic_device_rev, sizeof(adm1266_ic_device_rev)); + break; + + default: + qemu_log_mask(LOG_UNIMP, + "%s: reading from unimplemented register: 0x%02x\n", + __func__, pmdev->code); + return 0xFF; + } + + return 0; +} + +static int adm1266_write_data(PMBusDevice *pmdev, const uint8_t *buf, + uint8_t len) +{ + ADM1266State *s = ADM1266(pmdev); + + switch (pmdev->code) { + case PMBUS_MFR_ID: /* R/W block */ + pmbus_receive_block(pmdev, (uint8_t *)s->mfr_id, sizeof(s->mfr_id)); + break; + + case PMBUS_MFR_MODEL: /* R/W block */ + pmbus_receive_block(pmdev, (uint8_t *)s->mfr_model, + sizeof(s->mfr_model)); + break; + + case PMBUS_MFR_REVISION: /* R/W block*/ + pmbus_receive_block(pmdev, (uint8_t *)s->mfr_rev, sizeof(s->mfr_rev)); + break; + + case ADM1266_SET_RTC: /* do nothing */ + break; + + default: + qemu_log_mask(LOG_UNIMP, + "%s: writing to unimplemented register: 0x%02x\n", + __func__, pmdev->code); + break; + } + return 0; +} + +static void adm1266_get(Object *obj, Visitor *v, const char *name, void *opaque, + Error **errp) +{ + uint16_t value; + PMBusDevice *pmdev = PMBUS_DEVICE(obj); + PMBusVoutMode *mode = (PMBusVoutMode *)&pmdev->pages[0].vout_mode; + + if (strcmp(name, "vout") == 0) { + value = pmbus_linear_mode2data(*(uint16_t *)opaque, mode->exp); + } else { + value = *(uint16_t *)opaque; + } + + visit_type_uint16(v, name, &value, errp); +} + +static void adm1266_set(Object *obj, Visitor *v, const char *name, void *opaque, + Error **errp) +{ + uint16_t *internal = opaque; + uint16_t value; + PMBusDevice *pmdev = PMBUS_DEVICE(obj); + PMBusVoutMode *mode = (PMBusVoutMode *)&pmdev->pages[0].vout_mode; + + if (!visit_type_uint16(v, name, &value, errp)) { + return; + } + + *internal = pmbus_data2linear_mode(value, mode->exp); + pmbus_check_limits(pmdev); +} + +static const VMStateDescription vmstate_adm1266 = { + .name = "ADM1266", + .version_id = 0, + .minimum_version_id = 0, + .fields = (VMStateField[]){ + VMSTATE_PMBUS_DEVICE(parent, ADM1266State), + VMSTATE_END_OF_LIST() + } +}; + +static void adm1266_init(Object *obj) +{ + PMBusDevice *pmdev = PMBUS_DEVICE(obj); + uint64_t flags = PB_HAS_VOUT_MODE | PB_HAS_VOUT | PB_HAS_VOUT_MARGIN | + PB_HAS_VOUT_RATING | PB_HAS_STATUS_MFR_SPECIFIC; + + for (int i = 0; i < ADM1266_NUM_PAGES; i++) { + pmbus_page_config(pmdev, i, flags); + + object_property_add(obj, "vout[*]", "uint16", + adm1266_get, + adm1266_set, NULL, &pmdev->pages[i].read_vout); + } +} + +static void adm1266_class_init(ObjectClass *klass, void *data) +{ + ResettableClass *rc = RESETTABLE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + PMBusDeviceClass *k = PMBUS_DEVICE_CLASS(klass); + + dc->desc = "Analog Devices ADM1266 Hot Swap controller"; + dc->vmsd = &vmstate_adm1266; + k->write_data = adm1266_write_data; + k->receive_byte = adm1266_read_byte; + k->device_num_pages = 17; + + rc->phases.exit = adm1266_exit_reset; +} + +static const TypeInfo adm1266_info = { + .name = TYPE_ADM1266, + .parent = TYPE_PMBUS_DEVICE, + .instance_size = sizeof(ADM1266State), + .instance_init = adm1266_init, + .class_init = adm1266_class_init, +}; + +static void adm1266_register_types(void) +{ + type_register_static(&adm1266_info); +} + +type_init(adm1266_register_types) diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index e35007ed41..0f22aee24b 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -489,6 +489,7 @@ config NPCM7XX default y depends on TCG && ARM select A9MPCORE + select ADM1266 select ADM1272 select ARM_GIC select SMBUS diff --git a/hw/sensor/Kconfig b/hw/sensor/Kconfig index e03bd09b50..bc6331b4ab 100644 --- a/hw/sensor/Kconfig +++ b/hw/sensor/Kconfig @@ -22,6 +22,11 @@ config ADM1272 bool depends on I2C +config ADM1266 + bool + depends on PMBUS + default y if PMBUS + config MAX34451 bool depends on I2C diff --git a/hw/sensor/meson.build b/hw/sensor/meson.build index 30e20e27b8..420fdc3359 100644 --- a/hw/sensor/meson.build +++ b/hw/sensor/meson.build @@ -2,6 +2,7 @@ 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')) system_ss.add(when: 'CONFIG_EMC141X', if_true: files('emc141x.c')) +system_ss.add(when: 'CONFIG_ADM1266', if_true: files('adm1266.c')) system_ss.add(when: 'CONFIG_ADM1272', if_true: files('adm1272.c')) system_ss.add(when: 'CONFIG_MAX34451', if_true: files('max34451.c')) system_ss.add(when: 'CONFIG_LSM303DLHC_MAG', if_true: files('lsm303dlhc_mag.c')) -- 2.41.0
