13 /* TODO: model power only and disabled slot states. */
57  /* 4 bytes * slot # (start from 0) */
62 /* Same slot state masks are used for command and status registers */
114 /* SHPC Slot identifiers */
116 /* Hotplug supported at 31 slots out of the total 32.  We reserve slot 0,
119    different chassis number values, to make chassis+physical slot unique.
121 #define SHPC_IDX_TO_LOGICAL(slot) ((slot) + 1)  argument
123 #define SHPC_IDX_TO_PCI(slot) ((slot) + 1)  argument
125 #define SHPC_IDX_TO_PHYSICAL(slot) ((slot) + 1)  argument
155 static uint8_t shpc_get_status(SHPCDevice *shpc, int slot, uint16_t msk)  in shpc_get_status()  argument
157     uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot);  in shpc_get_status()
165                             int slot, uint8_t value, uint16_t msk)  in shpc_set_status()  argument
167     uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot);  in shpc_set_status()
175     int slot;  in shpc_interrupt_update()  local
181     for (slot = 0; slot < shpc->nslots; ++slot) {  in shpc_interrupt_update()
182         uint8_t event = shpc->config[SHPC_SLOT_EVENT_LATCH(slot)];  in shpc_interrupt_update()
183         uint8_t disable = shpc->config[SHPC_SLOT_EVENT_SERR_INT_DIS(d, slot)];  in shpc_interrupt_update()
184         uint32_t mask = 1U << SHPC_IDX_TO_LOGICAL(slot);  in shpc_interrupt_update()
272 static void shpc_free_devices_in_slot(SHPCDevice *shpc, int slot)  in shpc_free_devices_in_slot()  argument
276     int pci_slot = SHPC_IDX_TO_PCI(slot);  in shpc_free_devices_in_slot()
299     int slot = SHPC_LOGICAL_TO_IDX(target);  in shpc_slot_command()  local
300     uint8_t old_state = shpc_get_status(shpc, slot, SHPC_SLOT_STATE_MASK);  in shpc_slot_command()
301     uint8_t old_power = shpc_get_status(shpc, slot, SHPC_SLOT_PWR_LED_MASK);  in shpc_slot_command()
302     uint8_t old_attn = shpc_get_status(shpc, slot, SHPC_SLOT_ATTN_LED_MASK);  in shpc_slot_command()
304     if (target < SHPC_CMD_TRGT_MIN || slot >= shpc->nslots) {  in shpc_slot_command()
318         shpc_set_status(shpc, slot, power, SHPC_SLOT_PWR_LED_MASK);  in shpc_slot_command()
325         shpc_set_status(shpc, slot, attn, SHPC_SLOT_ATTN_LED_MASK);  in shpc_slot_command()
331         shpc_set_status(shpc, slot, state, SHPC_SLOT_STATE_MASK);  in shpc_slot_command()
336         int pci_slot = SHPC_IDX_TO_PCI(slot);  in shpc_slot_command()
354         shpc_free_devices_in_slot(shpc, slot);  in shpc_slot_command()
355         shpc_set_status(shpc, slot, 1, SHPC_SLOT_STATUS_MRL_OPEN);  in shpc_slot_command()
356         shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_EMPTY,  in shpc_slot_command()
358         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |=  in shpc_slot_command()
546 static bool shpc_device_get_slot(PCIDevice *affected_dev, int *slot,  in shpc_device_get_slot()  argument
550     *slot = SHPC_PCI_TO_IDX(pci_slot);  in shpc_device_get_slot()
552     if (pci_slot < SHPC_IDX_TO_PCI(0) || *slot >= shpc->nslots) {  in shpc_device_get_slot()
553         error_setg(errp, "Unsupported PCI slot %d for standard hotplug "  in shpc_device_get_slot()
568     int slot;  in shpc_device_plug_cb()  local
570     if (!shpc_device_get_slot(PCI_DEVICE(dev), &slot, shpc, errp)) {  in shpc_device_plug_cb()
578         shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN);  in shpc_device_plug_cb()
579         shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W,  in shpc_device_plug_cb()
586     if (shpc_get_status(shpc, slot, SHPC_SLOT_STATUS_MRL_OPEN)) {  in shpc_device_plug_cb()
587         shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN);  in shpc_device_plug_cb()
588         shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W,  in shpc_device_plug_cb()
590         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |=  in shpc_device_plug_cb()
596         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |=  in shpc_device_plug_cb()
599     shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_66);  in shpc_device_plug_cb()
616     int slot;  in shpc_device_unplug_request_cb()  local
618     if (!shpc_device_get_slot(PCI_DEVICE(dev), &slot, shpc, errp)) {  in shpc_device_unplug_request_cb()
622     state = shpc_get_status(shpc, slot, SHPC_SLOT_STATE_MASK);  in shpc_device_unplug_request_cb()
623     led = shpc_get_status(shpc, slot, SHPC_SLOT_PWR_LED_MASK);  in shpc_device_unplug_request_cb()
632         shpc_free_devices_in_slot(shpc, slot);  in shpc_device_unplug_request_cb()
633         shpc_set_status(shpc, slot, 1, SHPC_SLOT_STATUS_MRL_OPEN);  in shpc_device_unplug_request_cb()
634         shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_EMPTY,  in shpc_device_unplug_request_cb()
636         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |=  in shpc_device_unplug_request_cb()
640         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= SHPC_SLOT_EVENT_BUTTON;  in shpc_device_unplug_request_cb()
642     shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_66);  in shpc_device_unplug_request_cb()