static void brcmf_fw_free_request(struct brcmf_fw_request *req)
{
struct brcmf_fw_item *item;
int i;
for (i = 0, item = &req->items[0]; i < req->n_items; i++, item++) {
if (item->type == BRCMF_FW_TYPE_BINARY)
release_firmware(item->binary);
else if (item->type == BRCMF_FW_TYPE_NVRAM)
brcmf_fw_nvram_free(item->nv_data.data);
}
kfree(req);
}
static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo,
const struct firmware *fw, void *nvram,
u32 nvram_len)
{
u32 sharedram_addr;
u32 sharedram_addr_written;
u32 loop_counter;
int err;
u32 address;
u32 resetintr;
devinfo->ringbell = brcmf_pcie_ringbell_v2;
devinfo->generic_corerev = BRCMF_PCIE_GENREV2;
brcmf_dbg(PCIE, "Halt ARM.\n");
err = brcmf_pcie_enter_download_state(devinfo);
if (err)
return err;
brcmf_dbg(PCIE, "Download FW %s\n", devinfo->fw_name);
brcmf_pcie_copy_mem_todev(devinfo, devinfo->ci->rambase,
(void *)fw->data, fw->size);
resetintr = get_unaligned_le32(fw->data);
release_firmware(fw);
/* reset last 4 bytes of RAM address. to be used for shared
* area. This identifies when FW is running
*/
brcmf_pcie_write_ram32(devinfo, devinfo->ci->ramsize - 4, 0);
if (nvram) {
brcmf_dbg(PCIE, "Download NVRAM %s\n", devinfo->nvram_name);
address = devinfo->ci->rambase + devinfo->ci->ramsize -
nvram_len;
brcmf_pcie_copy_mem_todev(devinfo, address, nvram, nvram_len);
brcmf_fw_nvram_free(nvram);
} else {
brcmf_dbg(PCIE, "No matching NVRAM file found %s\n",
devinfo->nvram_name);
}
sharedram_addr_written = brcmf_pcie_read_ram32(devinfo,
devinfo->ci->ramsize -
4);
brcmf_dbg(PCIE, "Bring ARM in running state\n");
err = brcmf_pcie_exit_download_state(devinfo, resetintr);
if (err)
return err;
brcmf_dbg(PCIE, "Wait for FW init\n");
sharedram_addr = sharedram_addr_written;
loop_counter = BRCMF_PCIE_FW_UP_TIMEOUT / 50;
while ((sharedram_addr == sharedram_addr_written) && (loop_counter)) {
msleep(50);
sharedram_addr = brcmf_pcie_read_ram32(devinfo,
devinfo->ci->ramsize -
4);
loop_counter--;
}
if (sharedram_addr == sharedram_addr_written) {
brcmf_err("FW failed to initialize\n");
return -ENODEV;
}
brcmf_dbg(PCIE, "Shared RAM addr: 0x%08x\n", sharedram_addr);
return (brcmf_pcie_init_share_ram_info(devinfo, sharedram_addr));
}
