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wifi: ath12k: enable ath12k AHB support

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Currently only PCI devices are supported in Ath12k driver. Refactor
Ath12k module_init and module_exit to include Ath12k AHB support.

Add Ath12k AHB support in Kconfig with dependency on Remoteproc
driver. Ath12k AHB support relies on remoteproc driver for firmware
download, power up/down etc.

Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com>
Co-developed-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-13-bb389ed76ae5@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Balamurugan S 2025-03-21 16:22:50 +05:30 • committed by Jeff Johnson
parent 881edc1640
commit c0dd3f4f70
6 changed files with 57 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/net/wireless/ath/ath12k/Kconfig
View file

@ -15,6 +15,14 @@ config ATH12K
If you choose to build a module, it'll be called ath12k.
config ATH12K_AHB
bool "QTI ath12k AHB support"
depends on ATH12K && REMOTEPROC
select QCOM_MDT_LOADER
select QCOM_SCM
help
Enable support for Ath12k AHB bus chipsets, example IPQ5332.
config ATH12K_DEBUG
bool "ath12k debugging"
depends on ATH12K

1
drivers/net/wireless/ath/ath12k/Makefile
View file

@ -23,6 +23,7 @@ ath12k-y += core.o \
fw.o \
p2p.o
ath12k-$(CONFIG_ATH12K_AHB) += ahb.o
ath12k-$(CONFIG_ATH12K_DEBUGFS) += debugfs.o debugfs_htt_stats.o debugfs_sta.o
ath12k-$(CONFIG_ACPI) += acpi.o
ath12k-$(CONFIG_ATH12K_TRACING) += trace.o

11
drivers/net/wireless/ath/ath12k/ahb.h
View file

@ -66,4 +66,15 @@ static inline struct ath12k_ahb *ath12k_ab_to_ahb(struct ath12k_base *ab)
return (struct ath12k_ahb *)ab->drv_priv;
}
#ifdef CONFIG_ATH12K_AHB
int ath12k_ahb_init(void);
void ath12k_ahb_exit(void);
#else
static inline int ath12k_ahb_init(void)
{
return 0;
}
static inline void ath12k_ahb_exit(void) {};
#endif
#endif

35
drivers/net/wireless/ath/ath12k/core.c
View file

@ -10,15 +10,18 @@
#include <linux/firmware.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include "ahb.h"
#include "core.h"
#include "dp_tx.h"
#include "dp_rx.h"
#include "debug.h"
#include "hif.h"
#include "fw.h"
#include "debugfs.h"
#include "fw.h"
#include "hif.h"
#include "pci.h"
#include "wow.h"
static int ahb_err, pci_err;
unsigned int ath12k_debug_mask;
module_param_named(debug_mask, ath12k_debug_mask, uint, 0644);
MODULE_PARM_DESC(debug_mask, "Debugging mask");
@ -2073,5 +2076,31 @@ err_sc_free:
return NULL;
}
MODULE_DESCRIPTION("Core module for Qualcomm Atheros 802.11be wireless LAN cards.");
static int ath12k_init(void)
{
ahb_err = ath12k_ahb_init();
if (ahb_err)
pr_warn("Failed to initialize ath12k AHB device: %d\n", ahb_err);
pci_err = ath12k_pci_init();
if (pci_err)
pr_warn("Failed to initialize ath12k PCI device: %d\n", pci_err);
/* If both failed, return one of the failures (arbitrary) */
return ahb_err && pci_err ? ahb_err : 0;
}
static void ath12k_exit(void)
{
if (!pci_err)
ath12k_pci_exit();
if (!ahb_err)
ath12k_ahb_exit();
}
module_init(ath12k_init);
module_exit(ath12k_exit);
MODULE_DESCRIPTION("Driver support for Qualcomm Technologies 802.11be WLAN devices");
MODULE_LICENSE("Dual BSD/GPL");

10
drivers/net/wireless/ath/ath12k/pci.c
View file

@ -1831,7 +1831,7 @@ static struct pci_driver ath12k_pci_driver = {
.driver.pm = &ath12k_pci_pm_ops,
};
static int ath12k_pci_init(void)
int ath12k_pci_init(void)
{
int ret;
@ -1844,14 +1844,8 @@ static int ath12k_pci_init(void)
return 0;
}
module_init(ath12k_pci_init);
static void ath12k_pci_exit(void)
void ath12k_pci_exit(void)
{
pci_unregister_driver(&ath12k_pci_driver);
}
module_exit(ath12k_pci_exit);
MODULE_DESCRIPTION("Driver support for Qualcomm Technologies PCIe 802.11be WLAN devices");
MODULE_LICENSE("Dual BSD/GPL");

4
drivers/net/wireless/ath/ath12k/pci.h
View file

@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef ATH12K_PCI_H
#define ATH12K_PCI_H
@ -145,4 +145,6 @@ void ath12k_pci_stop(struct ath12k_base *ab);
int ath12k_pci_start(struct ath12k_base *ab);
int ath12k_pci_power_up(struct ath12k_base *ab);
void ath12k_pci_power_down(struct ath12k_base *ab, bool is_suspend);
int ath12k_pci_init(void);
void ath12k_pci_exit(void);
#endif /* ATH12K_PCI_H */