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ath11k: support loading ELF board files 

The QCA6390 board I have, model 8291M-PR comes with an ELF board file.  To get
this to at least somewhat work, I renamed bdwlan.e04 to 'board.bin' and then
added this patch to check for ELF magic string in the beginning of the file.
If that is found, use type ELF.  After this the driver loads.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Ben Greear <greearb@candelatech.com>
[kvalo@codeaurora.org: use elf.h, minor cleanup]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-2-git-send-email-kvalo@codeaurora.org
This commit is contained in:
Ben Greear 2020-09-29 20:15:29 +03:00 committed by Kalle Valo
parent 476c1d3c2e
commit 616c16a4b2
1 changed files with 11 additions and 1 deletions
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12
drivers/net/wireless/ath/ath11k/qmi.c
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@ -3,6 +3,8 @@
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
*/
#include <linux/elf.h>
#include "qmi.h"
#include "core.h"
#include "debug.h"
@ -1990,6 +1992,7 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
struct qmi_txn txn = {};
int ret;
const u8 *temp;
int bdf_type;
req = kzalloc(sizeof(*req), GFP_KERNEL);
if (!req)
@ -2006,6 +2009,13 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
temp = bd.data;
remaining = bd.len;
if (bd.len >= SELFMAG && memcmp(bd.data, ELFMAG, SELFMAG) == 0)
bdf_type = ATH11K_QMI_BDF_TYPE_ELF;
else
bdf_type = ATH11K_QMI_BDF_TYPE_BIN;
ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi bdf_type %d\n", bdf_type);
while (remaining) {
req->valid = 1;
req->file_id_valid = 1;
@ -2015,7 +2025,7 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
req->seg_id_valid = 1;
req->data_valid = 1;
req->data_len = ATH11K_QMI_MAX_BDF_FILE_NAME_SIZE;
req->bdf_type = ATH11K_QMI_BDF_TYPE_BIN;
req->bdf_type = bdf_type;
req->bdf_type_valid = 1;
req->end_valid = 1;
req->end = 0;