drivers/net/wireless/intel/iwlwifi/fw/img.c
Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/iwlwifi/fw/img.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/net/wireless/intel/iwlwifi/fw/img.c- Extension
.c- Size
- 3530 bytes
- Lines
- 126
- Domain
- Driver Families
- Bucket
- drivers/net
- Inferred role
- Driver Families: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
fw/api/commands.himg.h
Detected Declarations
function Copyrightfunction iwl_fw_lookup_cmd_verfunction iwl_fw_lookup_notif_verexport iwl_fw_lookup_cmd_bios_supported_revisionexport iwl_fw_lookup_cmd_verexport iwl_fw_lookup_notif_verexport iwl_fw_lookup_assert_desc
Annotated Snippet
if (entry->group == grp && entry->cmd == cmd) {
if (table_source == BIOS_SOURCE_ACPI)
return entry->max_acpi_revision;
return entry->max_uefi_revision;
}
}
return def;
}
EXPORT_SYMBOL_GPL(iwl_fw_lookup_cmd_bios_supported_revision);
u8 iwl_fw_lookup_cmd_ver(const struct iwl_fw *fw, u32 cmd_id, u8 def)
{
const struct iwl_fw_cmd_version *entry;
unsigned int i;
/* prior to LONG_GROUP, we never used this CMD version API */
u8 grp = iwl_cmd_groupid(cmd_id) ?: LONG_GROUP;
u8 cmd = iwl_cmd_opcode(cmd_id);
if (!fw->ucode_capa.cmd_versions ||
!fw->ucode_capa.n_cmd_versions)
return def;
entry = fw->ucode_capa.cmd_versions;
for (i = 0; i < fw->ucode_capa.n_cmd_versions; i++, entry++) {
if (entry->group == grp && entry->cmd == cmd) {
if (entry->cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
return def;
return entry->cmd_ver;
}
}
return def;
}
EXPORT_SYMBOL_GPL(iwl_fw_lookup_cmd_ver);
u8 iwl_fw_lookup_notif_ver(const struct iwl_fw *fw, u8 grp, u8 cmd, u8 def)
{
const struct iwl_fw_cmd_version *entry;
unsigned int i;
if (!fw->ucode_capa.cmd_versions ||
!fw->ucode_capa.n_cmd_versions)
return def;
entry = fw->ucode_capa.cmd_versions;
for (i = 0; i < fw->ucode_capa.n_cmd_versions; i++, entry++) {
if (entry->group == grp && entry->cmd == cmd) {
if (entry->notif_ver == IWL_FW_CMD_VER_UNKNOWN)
return def;
return entry->notif_ver;
}
}
return def;
}
EXPORT_SYMBOL_GPL(iwl_fw_lookup_notif_ver);
static const struct {
const char *name;
u32 num;
} advanced_lookup[] = {
{ "NMI_INTERRUPT_WDG", 0x34 },
{ "SYSASSERT", 0x35 },
{ "UCODE_VERSION_MISMATCH", 0x37 },
{ "BAD_COMMAND", 0x38 },
{ "BAD_COMMAND", 0x39 },
{ "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
{ "FATAL_ERROR", 0x3D },
{ "NMI_TRM_HW_ERR", 0x46 },
{ "NMI_INTERRUPT_TRM", 0x4C },
{ "NMI_INTERRUPT_BREAK_POINT", 0x54 },
{ "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
{ "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
{ "NMI_INTERRUPT_HOST", 0x66 },
{ "NMI_INTERRUPT_LMAC_FATAL", 0x70 },
{ "NMI_INTERRUPT_UMAC_FATAL", 0x71 },
{ "NMI_INTERRUPT_OTHER_LMAC_FATAL", 0x73 },
{ "NMI_INTERRUPT_ACTION_PT", 0x7C },
{ "NMI_INTERRUPT_UNKNOWN", 0x84 },
{ "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
{ "NMI_INTERRUPT_PREG", 0x88 },
{ "PNVM_MISSING", FW_SYSASSERT_PNVM_MISSING },
{ "ADVANCED_SYSASSERT", 0 },
};
const char *iwl_fw_lookup_assert_desc(u32 num)
{
int i;
Annotation
- Immediate include surface: `fw/api/commands.h`, `img.h`.
- Detected declarations: `function Copyright`, `function iwl_fw_lookup_cmd_ver`, `function iwl_fw_lookup_notif_ver`, `export iwl_fw_lookup_cmd_bios_supported_revision`, `export iwl_fw_lookup_cmd_ver`, `export iwl_fw_lookup_notif_ver`, `export iwl_fw_lookup_assert_desc`.
- Atlas domain: Driver Families / drivers/net.
- Implementation status: integration implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.