Import of the watch repository from Pebble

src/fw/console/pulse_bulkio_coredump.c

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "pulse_bulkio_domain_handler.h"
+
+#include "console/pulse_protocol_impl.h"
+#include "drivers/flash.h"
+#include "kernel/core_dump.h"
+#include "kernel/core_dump_private.h"
+#include "system/status_codes.h"
+#include "util/attributes.h"
+
+#include <stdint.h>
+
+typedef struct PACKED CoredumpStatResp {
+  uint8_t flags;
+  uint8_t unread;
+  uint32_t size;
+} CoredumpStatResp;
+
+static uint32_t prv_get_coredump_index(void *packet_data) {
+  return *(uint32_t*)packet_data;
+}
+
+static int coredump_domain_read(uint8_t *buf, uint32_t address, uint32_t length,
+                                     void *context) {
+  uint32_t index = (uintptr_t)context;
+  uint32_t core_base_addr = core_dump_get_slot_address(index) + sizeof(CoreDumpFlashRegionHeader);
+  flash_read_bytes(buf, core_base_addr + address, length);
+  return length;
+}
+
+static int coredump_domain_write(uint8_t *buf, uint32_t address, uint32_t length,
+                                      void *context) {
+  return E_INVALID_OPERATION;
+}
+
+static int coredump_domain_stat(uint8_t *resp, size_t resp_max_len, void *context) {
+  uint32_t index = (uintptr_t)context;
+  uint32_t addr = core_dump_get_slot_address(index);
+
+  CoredumpStatResp *stat_resp = (CoredumpStatResp*)resp;
+  *stat_resp = (CoredumpStatResp) {
+    .flags = 0,
+    .unread = core_dump_is_unread_available(addr),
+    // Size of 0 indicates no core dump available
+    .size = 0
+  };
+
+  if (stat_resp->unread == 1) {
+    status_t ret = core_dump_size(addr, &stat_resp->size);
+
+    if (FAILED(ret)) {
+      return ret;
+    }
+  }
+
+  return sizeof(CoredumpStatResp);
+}
+
+static status_t coredump_domain_erase(uint8_t *packet_data, size_t length, uint8_t cookie) {
+  uint32_t index = prv_get_coredump_index(packet_data);
+  uint32_t addr = core_dump_get_slot_address(index);
+  core_dump_mark_read(addr);
+  return S_SUCCESS;
+}
+
+static status_t coredump_domain_open(uint8_t *packet_data, size_t length, void **resp) {
+  *resp = (void*)(uintptr_t)prv_get_coredump_index(packet_data);
+  return S_SUCCESS;
+}
+
+static status_t coredump_domain_close(void *context) {
+  return S_SUCCESS;
+}
+
+PulseBulkIODomainHandler pulse_bulkio_domain_coredump = {
+  .id = PulseBulkIODomainType_Coredump,
+  .open_proc = coredump_domain_open,
+  .close_proc = coredump_domain_close,
+  .read_proc = coredump_domain_read,
+  .write_proc = coredump_domain_write,
+  .stat_proc = coredump_domain_stat,
+  .erase_proc = coredump_domain_erase
+};