WCN6750 is non-DBS 2x2 11AX chipset. Unlike QCA6390/WCN6855 which
are DBS (dual band simultaneous) solutions (2 LMACs), WCN6750 has a
single LMAC supporting 2G, 5G and 6G bands. It can be operated only
on one band at any given point.
WCN6750 is a PCIe device. Unlike other supported ATH11K PCIe devices
which are directly attached to APSS (Application Processor SubSystem),
WCN6750 is not attached to APSS, it is attached to the WPSS
(Wireless Processor SubSystem) Q6 processor, the FW which runs on the
Q6 processor will enumerate the PCIe device. Since APSS is unaware of
such a device, it has to be registered as a platform device(AHB) to the
kernel for device probing. Like other AHB devices, remoteproc APIs are
used to boot up or shutdown of WCN6750.
WCN6750 uses both AHB and PCIe ATH11K APIs for it's operation.
It uses AHB APIs for device probe and booting of the remote processor.
Once device is booted up, it uses ATH11K PCIe APIs for initialization
and register access. Hence, it is referred as hybrid bus device in
the rest of this series.
Since the chip is enumerated by WPSS Q6, device information like
BAR and BAR size is not known to the APSS processor. A new QMI message
called device info QMI request will be sent to the target for fetching
these details.
STA and AP modes are supported; Basic connectivity and ping are
verified in both the modes.
An important point to note is that though WCN6750 is a PCIe device,
it cannot be attached to any other platform except on Qualcomm
Snapdragon SoCs due to the aforementioned reasons.
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1
Manikanta Pubbisetty (9):
dt: bindings: net: add bindings of WCN6750 for ath11k
ath11k: Move parameters in bus_params to hw_params
ath11k: Add HW params for WCN6750
ath11k: Add register access logic for WCN6750
ath11k: Fetch device information via QMI for WCN6750
ath11k: Add QMI changes for WCN6750
ath11k: HAL changes to support WCN6750
ath11k: Datapath changes to support WCN6750
ath11k: Add support for WCN6750 device
---
V7:
- Moved bus_params to hw_params (ath11k: Move parameters in bus_params to hw_params)
- Removed patch "ath11k: Add bus params for WCN6750"
- Minor commit log changes
- Rebased on ToT SHAID: cfd3557af835ad2ab2dc8d617ea69aae2067d411
V6:
- Initialized the bus_params fields for AHB/PCI devices which were not previously initialized
- Commit log changes in the patch "ath11k: Datapath changes to support WCN6750"
- Rebased on ToT SHAID: 3637b73b8e805d011202e2bf10947f2d206695d4
V5:
- Rebased on ToT SHAID: 01be26cde012478db958d9bde530877c46031e76
- Added Reviewed-by: tag to the DT binding patch
V4:
- Addressed comments on DT binding (Matthias Kaehlcke <[email protected]>)
- Rebased on ToT SHAID: 607c3dc2750382befa0f3f20063943bd058a2bc1
V3:
- Patch series with 19 patches is split in 2 patch series, this is the second one
- Rebased on ToT SHAID: 7316a74e54318d0cd648242b18ea83cdef6dda96
- Addessed DT binding concerns
- PCI common code is moved to ath11k.ko
- Added a new HW param for WCN6750 which uses fixed firmware memory, this is
needed to differentiate WCN6750 from other ATH11K chipsets
- Modified the logic in patch "ath11k: Add support for WCN6750 device" based on the latest DT binding
V2:
- Rebased on ToT
- Addressed comments on DT binding
.../bindings/net/wireless/qcom,ath11k.yaml | 361 ++++++++++++------
drivers/net/wireless/ath/ath11k/Makefile | 5 +-
drivers/net/wireless/ath/ath11k/ahb.c | 153 +++++++-
drivers/net/wireless/ath/ath11k/core.c | 125 +++++-
drivers/net/wireless/ath/ath11k/core.h | 14 +-
drivers/net/wireless/ath/ath11k/hal.c | 15 +-
drivers/net/wireless/ath/ath11k/hal.h | 15 +-
drivers/net/wireless/ath/ath11k/hw.c | 166 ++++++++
drivers/net/wireless/ath/ath11k/hw.h | 18 +
drivers/net/wireless/ath/ath11k/pci.c | 14 +-
drivers/net/wireless/ath/ath11k/pcic.c | 77 ++--
drivers/net/wireless/ath/ath11k/qmi.c | 242 ++++++++++--
drivers/net/wireless/ath/ath11k/qmi.h | 26 +-
13 files changed, 984 insertions(+), 247 deletions(-)
--
2.35.1
WCN6750 is the WLAN chip on Qualcomm Snapdragon SoC SC7280;
Though being a PCIe based solution, it is not attached to
the APSS processor (Application Processor SubSystem), it is
instead attached to another tiny processor called WPSS Q6
processor (Wireless Processor SubSystem) on the SC7280 MSM,
where the WLAN firmware runs, and it is the WLAN firmware
running on the Q6 processor which enumerates WCN6750, as a
result APPS processor would never know such a device being
present in the system and would not detect the WCN6750
hardware unless and otherwise WCN6750 is registered as a
platform device. This is the reason behind adding WCN6750
WLAN node in the device tree.
Add WCN6750 wireless driver support, its based on ath11k driver.
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Manikanta Pubbisetty <[email protected]>
---
.../bindings/net/wireless/qcom,ath11k.yaml | 361 ++++++++++++------
1 file changed, 252 insertions(+), 109 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
index cdf7b873b419..6b32caa8311c 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
@@ -20,120 +20,17 @@ properties:
enum:
- qcom,ipq8074-wifi
- qcom,ipq6018-wifi
+ - qcom,wcn6750-wifi
reg:
maxItems: 1
interrupts:
- items:
- - description: misc-pulse1 interrupt events
- - description: misc-latch interrupt events
- - description: sw exception interrupt events
- - description: watchdog interrupt events
- - description: interrupt event for ring CE0
- - description: interrupt event for ring CE1
- - description: interrupt event for ring CE2
- - description: interrupt event for ring CE3
- - description: interrupt event for ring CE4
- - description: interrupt event for ring CE5
- - description: interrupt event for ring CE6
- - description: interrupt event for ring CE7
- - description: interrupt event for ring CE8
- - description: interrupt event for ring CE9
- - description: interrupt event for ring CE10
- - description: interrupt event for ring CE11
- - description: interrupt event for ring host2wbm-desc-feed
- - description: interrupt event for ring host2reo-re-injection
- - description: interrupt event for ring host2reo-command
- - description: interrupt event for ring host2rxdma-monitor-ring3
- - description: interrupt event for ring host2rxdma-monitor-ring2
- - description: interrupt event for ring host2rxdma-monitor-ring1
- - description: interrupt event for ring reo2ost-exception
- - description: interrupt event for ring wbm2host-rx-release
- - description: interrupt event for ring reo2host-status
- - description: interrupt event for ring reo2host-destination-ring4
- - description: interrupt event for ring reo2host-destination-ring3
- - description: interrupt event for ring reo2host-destination-ring2
- - description: interrupt event for ring reo2host-destination-ring1
- - description: interrupt event for ring rxdma2host-monitor-destination-mac3
- - description: interrupt event for ring rxdma2host-monitor-destination-mac2
- - description: interrupt event for ring rxdma2host-monitor-destination-mac1
- - description: interrupt event for ring ppdu-end-interrupts-mac3
- - description: interrupt event for ring ppdu-end-interrupts-mac2
- - description: interrupt event for ring ppdu-end-interrupts-mac1
- - description: interrupt event for ring rxdma2host-monitor-status-ring-mac3
- - description: interrupt event for ring rxdma2host-monitor-status-ring-mac2
- - description: interrupt event for ring rxdma2host-monitor-status-ring-mac1
- - description: interrupt event for ring host2rxdma-host-buf-ring-mac3
- - description: interrupt event for ring host2rxdma-host-buf-ring-mac2
- - description: interrupt event for ring host2rxdma-host-buf-ring-mac1
- - description: interrupt event for ring rxdma2host-destination-ring-mac3
- - description: interrupt event for ring rxdma2host-destination-ring-mac2
- - description: interrupt event for ring rxdma2host-destination-ring-mac1
- - description: interrupt event for ring host2tcl-input-ring4
- - description: interrupt event for ring host2tcl-input-ring3
- - description: interrupt event for ring host2tcl-input-ring2
- - description: interrupt event for ring host2tcl-input-ring1
- - description: interrupt event for ring wbm2host-tx-completions-ring3
- - description: interrupt event for ring wbm2host-tx-completions-ring2
- - description: interrupt event for ring wbm2host-tx-completions-ring1
- - description: interrupt event for ring tcl2host-status-ring
-
+ minItems: 32
+ maxItems: 52
interrupt-names:
- items:
- - const: misc-pulse1
- - const: misc-latch
- - const: sw-exception
- - const: watchdog
- - const: ce0
- - const: ce1
- - const: ce2
- - const: ce3
- - const: ce4
- - const: ce5
- - const: ce6
- - const: ce7
- - const: ce8
- - const: ce9
- - const: ce10
- - const: ce11
- - const: host2wbm-desc-feed
- - const: host2reo-re-injection
- - const: host2reo-command
- - const: host2rxdma-monitor-ring3
- - const: host2rxdma-monitor-ring2
- - const: host2rxdma-monitor-ring1
- - const: reo2ost-exception
- - const: wbm2host-rx-release
- - const: reo2host-status
- - const: reo2host-destination-ring4
- - const: reo2host-destination-ring3
- - const: reo2host-destination-ring2
- - const: reo2host-destination-ring1
- - const: rxdma2host-monitor-destination-mac3
- - const: rxdma2host-monitor-destination-mac2
- - const: rxdma2host-monitor-destination-mac1
- - const: ppdu-end-interrupts-mac3
- - const: ppdu-end-interrupts-mac2
- - const: ppdu-end-interrupts-mac1
- - const: rxdma2host-monitor-status-ring-mac3
- - const: rxdma2host-monitor-status-ring-mac2
- - const: rxdma2host-monitor-status-ring-mac1
- - const: host2rxdma-host-buf-ring-mac3
- - const: host2rxdma-host-buf-ring-mac2
- - const: host2rxdma-host-buf-ring-mac1
- - const: rxdma2host-destination-ring-mac3
- - const: rxdma2host-destination-ring-mac2
- - const: rxdma2host-destination-ring-mac1
- - const: host2tcl-input-ring4
- - const: host2tcl-input-ring3
- - const: host2tcl-input-ring2
- - const: host2tcl-input-ring1
- - const: wbm2host-tx-completions-ring3
- - const: wbm2host-tx-completions-ring2
- - const: wbm2host-tx-completions-ring1
- - const: tcl2host-status-ring
+ maxItems: 52
qcom,rproc:
$ref: /schemas/types.yaml#/definitions/phandle
@@ -151,20 +48,205 @@ properties:
board-2.bin for designs with colliding bus and device specific ids
memory-region:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
description:
phandle to a node describing reserved memory (System RAM memory)
used by ath11k firmware (see bindings/reserved-memory/reserved-memory.txt)
+ iommus:
+ minItems: 1
+ maxItems: 2
+
+ wifi-firmware:
+ type: object
+ description: |
+ WCN6750 wifi node can contain one optional firmware subnode.
+ Firmware subnode is needed when the platform does not have Trustzone.
+ required:
+ - iommus
+
required:
- compatible
- reg
- interrupts
- - interrupt-names
- qcom,rproc
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq8074-wifi
+ - qcom,ipq6018-wifi
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: misc-pulse1 interrupt events
+ - description: misc-latch interrupt events
+ - description: sw exception interrupt events
+ - description: watchdog interrupt events
+ - description: interrupt event for ring CE0
+ - description: interrupt event for ring CE1
+ - description: interrupt event for ring CE2
+ - description: interrupt event for ring CE3
+ - description: interrupt event for ring CE4
+ - description: interrupt event for ring CE5
+ - description: interrupt event for ring CE6
+ - description: interrupt event for ring CE7
+ - description: interrupt event for ring CE8
+ - description: interrupt event for ring CE9
+ - description: interrupt event for ring CE10
+ - description: interrupt event for ring CE11
+ - description: interrupt event for ring host2wbm-desc-feed
+ - description: interrupt event for ring host2reo-re-injection
+ - description: interrupt event for ring host2reo-command
+ - description: interrupt event for ring host2rxdma-monitor-ring3
+ - description: interrupt event for ring host2rxdma-monitor-ring2
+ - description: interrupt event for ring host2rxdma-monitor-ring1
+ - description: interrupt event for ring reo2ost-exception
+ - description: interrupt event for ring wbm2host-rx-release
+ - description: interrupt event for ring reo2host-status
+ - description: interrupt event for ring reo2host-destination-ring4
+ - description: interrupt event for ring reo2host-destination-ring3
+ - description: interrupt event for ring reo2host-destination-ring2
+ - description: interrupt event for ring reo2host-destination-ring1
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac3
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac2
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac1
+ - description: interrupt event for ring ppdu-end-interrupts-mac3
+ - description: interrupt event for ring ppdu-end-interrupts-mac2
+ - description: interrupt event for ring ppdu-end-interrupts-mac1
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac3
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac2
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac1
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac3
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac2
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac1
+ - description: interrupt event for ring rxdma2host-destination-ring-mac3
+ - description: interrupt event for ring rxdma2host-destination-ring-mac2
+ - description: interrupt event for ring rxdma2host-destination-ring-mac1
+ - description: interrupt event for ring host2tcl-input-ring4
+ - description: interrupt event for ring host2tcl-input-ring3
+ - description: interrupt event for ring host2tcl-input-ring2
+ - description: interrupt event for ring host2tcl-input-ring1
+ - description: interrupt event for ring wbm2host-tx-completions-ring3
+ - description: interrupt event for ring wbm2host-tx-completions-ring2
+ - description: interrupt event for ring wbm2host-tx-completions-ring1
+ - description: interrupt event for ring tcl2host-status-ring
+ interrupt-names:
+ items:
+ - const: misc-pulse1
+ - const: misc-latch
+ - const: sw-exception
+ - const: watchdog
+ - const: ce0
+ - const: ce1
+ - const: ce2
+ - const: ce3
+ - const: ce4
+ - const: ce5
+ - const: ce6
+ - const: ce7
+ - const: ce8
+ - const: ce9
+ - const: ce10
+ - const: ce11
+ - const: host2wbm-desc-feed
+ - const: host2reo-re-injection
+ - const: host2reo-command
+ - const: host2rxdma-monitor-ring3
+ - const: host2rxdma-monitor-ring2
+ - const: host2rxdma-monitor-ring1
+ - const: reo2ost-exception
+ - const: wbm2host-rx-release
+ - const: reo2host-status
+ - const: reo2host-destination-ring4
+ - const: reo2host-destination-ring3
+ - const: reo2host-destination-ring2
+ - const: reo2host-destination-ring1
+ - const: rxdma2host-monitor-destination-mac3
+ - const: rxdma2host-monitor-destination-mac2
+ - const: rxdma2host-monitor-destination-mac1
+ - const: ppdu-end-interrupts-mac3
+ - const: ppdu-end-interrupts-mac2
+ - const: ppdu-end-interrupts-mac1
+ - const: rxdma2host-monitor-status-ring-mac3
+ - const: rxdma2host-monitor-status-ring-mac2
+ - const: rxdma2host-monitor-status-ring-mac1
+ - const: host2rxdma-host-buf-ring-mac3
+ - const: host2rxdma-host-buf-ring-mac2
+ - const: host2rxdma-host-buf-ring-mac1
+ - const: rxdma2host-destination-ring-mac3
+ - const: rxdma2host-destination-ring-mac2
+ - const: rxdma2host-destination-ring-mac1
+ - const: host2tcl-input-ring4
+ - const: host2tcl-input-ring3
+ - const: host2tcl-input-ring2
+ - const: host2tcl-input-ring1
+ - const: wbm2host-tx-completions-ring3
+ - const: wbm2host-tx-completions-ring2
+ - const: wbm2host-tx-completions-ring1
+ - const: tcl2host-status-ring
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq8074-wifi
+ - qcom,ipq6018-wifi
+ then:
+ required:
+ - interrupt-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,wcn6750-wifi
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: interrupt event for ring CE1
+ - description: interrupt event for ring CE2
+ - description: interrupt event for ring CE3
+ - description: interrupt event for ring CE4
+ - description: interrupt event for ring CE5
+ - description: interrupt event for ring CE6
+ - description: interrupt event for ring CE7
+ - description: interrupt event for ring CE8
+ - description: interrupt event for ring CE9
+ - description: interrupt event for ring CE10
+ - description: interrupt event for ring DP1
+ - description: interrupt event for ring DP2
+ - description: interrupt event for ring DP3
+ - description: interrupt event for ring DP4
+ - description: interrupt event for ring DP5
+ - description: interrupt event for ring DP6
+ - description: interrupt event for ring DP7
+ - description: interrupt event for ring DP8
+ - description: interrupt event for ring DP9
+ - description: interrupt event for ring DP10
+ - description: interrupt event for ring DP11
+ - description: interrupt event for ring DP12
+ - description: interrupt event for ring DP13
+ - description: interrupt event for ring DP14
+ - description: interrupt event for ring DP15
+ - description: interrupt event for ring DP16
+ - description: interrupt event for ring DP17
+ - description: interrupt event for ring DP18
+ - description: interrupt event for ring DP19
+ - description: interrupt event for ring DP20
+ - description: interrupt event for ring DP21
+ - description: interrupt event for ring DP22
+
examples:
- |
@@ -309,3 +391,64 @@ examples:
};
};
};
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ wlan_ce_mem: memory@4cd000 {
+ no-map;
+ reg = <0x0 0x004cd000 0x0 0x1000>;
+ };
+
+ wlan_fw_mem: memory@80c00000 {
+ no-map;
+ reg = <0x0 0x80c00000 0x0 0xc00000>;
+ };
+ };
+
+ wifi: wifi@17a10040 {
+ compatible = "qcom,wcn6750-wifi";
+ reg = <0x17a10040 0x0>;
+ iommus = <&apps_smmu 0x1c00 0x1>;
+ interrupts = <GIC_SPI 768 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 769 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 770 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 771 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 772 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 773 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 774 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 775 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 776 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 777 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 778 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 779 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 780 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 781 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 782 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 783 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 784 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 785 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 786 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 787 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 788 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 789 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 790 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 791 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 792 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 793 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 794 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 795 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 796 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 797 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 798 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 799 IRQ_TYPE_EDGE_RISING>;
+ qcom,rproc = <&remoteproc_wpss>;
+ memory-region = <&wlan_fw_mem>, <&wlan_ce_mem>;
+ wifi-firmware {
+ iommus = <&apps_smmu 0x1c02 0x1>;
+ };
+ };
--
2.35.1
Since WPPS Q6 does the PCIe enumeration of WCN6750, device
information like BAR and BAR size is not known to the APPS
processor (Application Processor SubSystem). In order to
fetch these details, a QMI message called device info request
will be sent to the target. Therefore, add logic to fetch
BAR details from the target.
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1
Signed-off-by: Manikanta Pubbisetty <[email protected]>
---
drivers/net/wireless/ath/ath11k/qmi.c | 143 ++++++++++++++++++++++++++
drivers/net/wireless/ath/ath11k/qmi.h | 24 ++++-
2 files changed, 163 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index c89e76108237..71e25cb094f8 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -13,6 +13,8 @@
#include <linux/of_address.h>
#include <linux/ioport.h>
#include <linux/firmware.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
#define SLEEP_CLOCK_SELECT_INTERNAL_BIT 0x02
#define HOST_CSTATE_BIT 0x04
@@ -749,6 +751,68 @@ static struct qmi_elem_info qmi_wlanfw_cap_req_msg_v01_ei[] = {
},
};
+static struct qmi_elem_info qmi_wlanfw_device_info_req_msg_v01_ei[] = {
+ {
+ .data_type = QMI_EOTI,
+ .array_type = NO_ARRAY,
+ .tlv_type = QMI_COMMON_TLV_TYPE,
+ },
+};
+
+static struct qmi_elem_info qmi_wlfw_device_info_resp_msg_v01_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size = sizeof(struct qmi_response_type_v01),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x02,
+ .offset = offsetof(struct qmi_wlanfw_device_info_resp_msg_v01,
+ resp),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size = sizeof(u8),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x10,
+ .offset = offsetof(struct qmi_wlanfw_device_info_resp_msg_v01,
+ bar_addr_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_8_BYTE,
+ .elem_len = 1,
+ .elem_size = sizeof(u64),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x10,
+ .offset = offsetof(struct qmi_wlanfw_device_info_resp_msg_v01,
+ bar_addr),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size = sizeof(u8),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x11,
+ .offset = offsetof(struct qmi_wlanfw_device_info_resp_msg_v01,
+ bar_size_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size = sizeof(u32),
+ .array_type = NO_ARRAY,
+ .tlv_type = 0x11,
+ .offset = offsetof(struct qmi_wlanfw_device_info_resp_msg_v01,
+ bar_size),
+ },
+ {
+ .data_type = QMI_EOTI,
+ .array_type = NO_ARRAY,
+ .tlv_type = QMI_COMMON_TLV_TYPE,
+ },
+};
+
static struct qmi_elem_info qmi_wlanfw_rf_chip_info_s_v01_ei[] = {
{
.data_type = QMI_UNSIGNED_4_BYTE,
@@ -2008,6 +2072,79 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
return 0;
}
+static int ath11k_qmi_request_device_info(struct ath11k_base *ab)
+{
+ struct qmi_wlanfw_device_info_req_msg_v01 req = {};
+ struct qmi_wlanfw_device_info_resp_msg_v01 resp = {};
+ struct qmi_txn txn;
+ void __iomem *bar_addr_va;
+ int ret;
+
+ /* device info message req is only sent for hybrid bus devices */
+ if (!ab->hw_params.hybrid_bus_type)
+ return 0;
+
+ ret = qmi_txn_init(&ab->qmi.handle, &txn,
+ qmi_wlfw_device_info_resp_msg_v01_ei, &resp);
+ if (ret < 0)
+ goto out;
+
+ ret = qmi_send_request(&ab->qmi.handle, NULL, &txn,
+ QMI_WLANFW_DEVICE_INFO_REQ_V01,
+ QMI_WLANFW_DEVICE_INFO_REQ_MSG_V01_MAX_LEN,
+ qmi_wlanfw_device_info_req_msg_v01_ei, &req);
+ if (ret < 0) {
+ qmi_txn_cancel(&txn);
+ ath11k_warn(ab, "qmi failed to send target device info request, err = %d\n",
+ ret);
+ goto out;
+ }
+
+ ret = qmi_txn_wait(&txn, msecs_to_jiffies(ATH11K_QMI_WLANFW_TIMEOUT_MS));
+ if (ret < 0) {
+ ath11k_warn(ab, "qmi failed target device info request %d\n", ret);
+ goto out;
+ }
+
+ if (resp.resp.result != QMI_RESULT_SUCCESS_V01) {
+ ath11k_warn(ab, "qmi device info req failed, result: %d, err: %d\n",
+ resp.resp.result, resp.resp.error);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!resp.bar_addr_valid || !resp.bar_size_valid) {
+ ath11k_warn(ab, "qmi device info response invalid, result: %d, err: %d\n",
+ resp.resp.result, resp.resp.error);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!resp.bar_addr ||
+ resp.bar_size != ATH11K_QMI_DEVICE_BAR_SIZE) {
+ ath11k_warn(ab, "qmi device info invalid addr and size, result: %d, err: %d\n",
+ resp.resp.result, resp.resp.error);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ bar_addr_va = devm_ioremap(ab->dev, resp.bar_addr, resp.bar_size);
+
+ if (!bar_addr_va) {
+ ath11k_warn(ab, "qmi device info ioremap failed\n");
+ ab->mem_len = 0;
+ ret = -EIO;
+ goto out;
+ }
+
+ ab->mem = bar_addr_va;
+ ab->mem_len = resp.bar_size;
+
+ return 0;
+out:
+ return ret;
+}
+
static int ath11k_qmi_request_target_cap(struct ath11k_base *ab)
{
struct qmi_wlanfw_cap_req_msg_v01 req;
@@ -2749,6 +2886,12 @@ static int ath11k_qmi_event_load_bdf(struct ath11k_qmi *qmi)
return ret;
}
+ ret = ath11k_qmi_request_device_info(ab);
+ if (ret < 0) {
+ ath11k_warn(ab, "failed to request qmi device info %d\n", ret);
+ return ret;
+ }
+
if (ab->hw_params.supports_regdb)
ath11k_qmi_load_bdf_qmi(ab, true);
diff --git a/drivers/net/wireless/ath/ath11k/qmi.h b/drivers/net/wireless/ath/ath11k/qmi.h
index e0201e184733..c24e6995cca3 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.h
+++ b/drivers/net/wireless/ath/ath11k/qmi.h
@@ -38,6 +38,8 @@
#define ATH11K_FIRMWARE_MODE_OFF 4
#define ATH11K_COLD_BOOT_FW_RESET_DELAY (40 * HZ)
+#define ATH11K_QMI_DEVICE_BAR_SIZE 0x200000
+
struct ath11k_base;
enum ath11k_qmi_file_type {
@@ -287,10 +289,12 @@ struct qmi_wlanfw_fw_cold_cal_done_ind_msg_v01 {
char placeholder;
};
-#define QMI_WLANFW_CAP_REQ_MSG_V01_MAX_LEN 0
-#define QMI_WLANFW_CAP_RESP_MSG_V01_MAX_LEN 235
-#define QMI_WLANFW_CAP_REQ_V01 0x0024
-#define QMI_WLANFW_CAP_RESP_V01 0x0024
+#define QMI_WLANFW_CAP_REQ_MSG_V01_MAX_LEN 0
+#define QMI_WLANFW_CAP_RESP_MSG_V01_MAX_LEN 235
+#define QMI_WLANFW_CAP_REQ_V01 0x0024
+#define QMI_WLANFW_CAP_RESP_V01 0x0024
+#define QMI_WLANFW_DEVICE_INFO_REQ_V01 0x004C
+#define QMI_WLANFW_DEVICE_INFO_REQ_MSG_V01_MAX_LEN 0
enum qmi_wlanfw_pipedir_enum_v01 {
QMI_WLFW_PIPEDIR_NONE_V01 = 0,
@@ -383,6 +387,18 @@ struct qmi_wlanfw_cap_req_msg_v01 {
char placeholder;
};
+struct qmi_wlanfw_device_info_req_msg_v01 {
+ char placeholder;
+};
+
+struct qmi_wlanfw_device_info_resp_msg_v01 {
+ struct qmi_response_type_v01 resp;
+ u64 bar_addr;
+ u32 bar_size;
+ u8 bar_addr_valid;
+ u8 bar_size_valid;
+};
+
#define QMI_WLANFW_BDF_DOWNLOAD_REQ_MSG_V01_MAX_LEN 6182
#define QMI_WLANFW_BDF_DOWNLOAD_RESP_MSG_V01_MAX_LEN 7
#define QMI_WLANFW_BDF_DOWNLOAD_RESP_V01 0x0025
--
2.35.1
Manikanta Pubbisetty <[email protected]> writes:
> Since WPPS Q6 does the PCIe enumeration of WCN6750, device
> information like BAR and BAR size is not known to the APPS
> processor (Application Processor SubSystem). In order to
> fetch these details, a QMI message called device info request
> will be sent to the target. Therefore, add logic to fetch
> BAR details from the target.
>
> Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1
> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
> Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Manikanta Pubbisetty <[email protected]>
[...]
> +static int ath11k_qmi_request_device_info(struct ath11k_base *ab)
> +{
> + struct qmi_wlanfw_device_info_req_msg_v01 req = {};
> + struct qmi_wlanfw_device_info_resp_msg_v01 resp = {};
> + struct qmi_txn txn;
> + void __iomem *bar_addr_va;
> + int ret;
> +
> + /* device info message req is only sent for hybrid bus devices */
> + if (!ab->hw_params.hybrid_bus_type)
> + return 0;
> +
> + ret = qmi_txn_init(&ab->qmi.handle, &txn,
> + qmi_wlfw_device_info_resp_msg_v01_ei, &resp);
> + if (ret < 0)
> + goto out;
> +
> + ret = qmi_send_request(&ab->qmi.handle, NULL, &txn,
> + QMI_WLANFW_DEVICE_INFO_REQ_V01,
> + QMI_WLANFW_DEVICE_INFO_REQ_MSG_V01_MAX_LEN,
> + qmi_wlanfw_device_info_req_msg_v01_ei, &req);
> + if (ret < 0) {
> + qmi_txn_cancel(&txn);
> + ath11k_warn(ab, "qmi failed to send target device info request, err = %d\n",
> + ret);
> + goto out;
> + }
> +
> + ret = qmi_txn_wait(&txn, msecs_to_jiffies(ATH11K_QMI_WLANFW_TIMEOUT_MS));
> + if (ret < 0) {
> + ath11k_warn(ab, "qmi failed target device info request %d\n", ret);
> + goto out;
> + }
> +
> + if (resp.resp.result != QMI_RESULT_SUCCESS_V01) {
> + ath11k_warn(ab, "qmi device info req failed, result: %d, err: %d\n",
> + resp.resp.result, resp.resp.error);
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + if (!resp.bar_addr_valid || !resp.bar_size_valid) {
> + ath11k_warn(ab, "qmi device info response invalid, result: %d, err: %d\n",
> + resp.resp.result, resp.resp.error);
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + if (!resp.bar_addr ||
> + resp.bar_size != ATH11K_QMI_DEVICE_BAR_SIZE) {
> + ath11k_warn(ab, "qmi device info invalid addr and size, result: %d, err: %d\n",
> + resp.resp.result, resp.resp.error);
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + bar_addr_va = devm_ioremap(ab->dev, resp.bar_addr, resp.bar_size);
> +
> + if (!bar_addr_va) {
> + ath11k_warn(ab, "qmi device info ioremap failed\n");
> + ab->mem_len = 0;
> + ret = -EIO;
> + goto out;
> + }
> +
> + ab->mem = bar_addr_va;
> + ab->mem_len = resp.bar_size;
> +
> + return 0;
> +out:
> + return ret;
> +}
In the pending branch I changed the warning messages to follow the style
used in ath11k.
> +
> static int ath11k_qmi_request_target_cap(struct ath11k_base *ab)
> {
> struct qmi_wlanfw_cap_req_msg_v01 req;
> @@ -2749,6 +2886,12 @@ static int ath11k_qmi_event_load_bdf(struct ath11k_qmi *qmi)
> return ret;
> }
>
> + ret = ath11k_qmi_request_device_info(ab);
> + if (ret < 0) {
> + ath11k_warn(ab, "failed to request qmi device info %d\n", ret);
> + return ret;
> + }
Here too.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
Manikanta Pubbisetty <[email protected]> wrote:
> WCN6750 is the WLAN chip on Qualcomm Snapdragon SoC SC7280;
> Though being a PCIe based solution, it is not attached to
> the APSS processor (Application Processor SubSystem), it is
> instead attached to another tiny processor called WPSS Q6
> processor (Wireless Processor SubSystem) on the SC7280 MSM,
> where the WLAN firmware runs, and it is the WLAN firmware
> running on the Q6 processor which enumerates WCN6750, as a
> result APPS processor would never know such a device being
> present in the system and would not detect the WCN6750
> hardware unless and otherwise WCN6750 is registered as a
> platform device. This is the reason behind adding WCN6750
> WLAN node in the device tree.
>
> Add WCN6750 wireless driver support, its based on ath11k driver.
>
> Reviewed-by: Rob Herring <[email protected]>
> Signed-off-by: Manikanta Pubbisetty <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>
9 patches applied to ath-next branch of ath.git, thanks.
00fd24089b81 dt: bindings: net: add bindings of WCN6750 for ath11k
92c1858e4399 ath11k: Move parameters in bus_params to hw_params
d1e1edfde035 ath11k: Add HW params for WCN6750
56c8ccf331bd ath11k: Add register access logic for WCN6750
676f8905fff9 ath11k: Fetch device information via QMI for WCN6750
73d3e71306fe ath11k: Add QMI changes for WCN6750
49890d9c93d5 ath11k: HAL changes to support WCN6750
e67ba1973917 ath11k: Datapath changes to support WCN6750
00402f49d26f ath11k: Add support for WCN6750 device
--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches