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Commit 9809030d authored by Skylar Chang's avatar Skylar Chang
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msm: ipa: add mhi proxy driver 



Introduce IPA MHI Proxy capability to IPA driver.
This module is used to setup MHI channels and allow
data transfers between two modems.

CRs-Fixed: 2237669
Change-Id: Ibb96a12185e150ef730fa3a6118ed5e40ae06ed7
Acked-by: default avatarAdy Abraham <adya@qti.qualocmm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent e14e6b52

Documentation/devicetree/bindings/platform/msm/ipa_mhi_proxy.txt

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* Qualcomm Technologies, Inc. IPA MHI proxy driver module



This module enables modem to modem communication using IPA

and MHI.



Required properties:

- compatible:		Must be "qcom,ipa-mhi-proxy"

- qcom,mhi-chdb-base:	MHI channel doorbell base address in MMIO space

- qcom,mhi-erdb-base:	MHI event doorbell base address in MMIO space



Optional:

- qcom,ctrl-iova: 		Pair of start address and size of the IOVA space

				dedicated for MHI control structures

				(such as transfer rings and event rings).

				If not present, SMMU S1 is considered to be in bypass mode.

- qcom,data-iova: 		Pair of start address and size of the IOVA space

				dedicated for MHI data buffers.

				If not present, SMMU S1 is considered to be in bypass mode.



Example:

	imp: qcom,ipa-mhi-proxy {

		compatible = "qcom,ipa-mhi-proxy";

		qcom,ctrl-iova = <0x00010000 0x0FFF0000>;

		qcom,data-iova = <0x10000000 0x0FFFFFFF>;

		qcom,mhi-chdb-base = <0x40300300>;

		qcom,mhi-erdb-base = <0x40300700>;

	};

drivers/platform/msm/Kconfig

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@@ -147,6 +147,17 @@ config RNDIS_IPA 
	  This Network interface is aimed to allow data path go through

	  This Network interface is aimed to allow data path go through

	  IPA core while using RNDIS protocol.

	  IPA core while using RNDIS protocol.





config IPA3_MHI_PROXY

	tristate "IPA3 MHI proxy driver"

	depends on RMNET_IPA3

	help

	  This driver is used as a proxy between modem and MHI host driver.

	  Its main functionality is to setup MHI Satellite channels on behalf of

	  modem and provide the ability of modem to MHI device communication.

	  Once the configuration is done modem will communicate directly with

	  the MHI device without AP involvement, with the exception of

	  power management.



config IPA_UT

config IPA_UT

	tristate "IPA Unit-Test Framework and Test Suites"

	tristate "IPA Unit-Test Framework and Test Suites"

	depends on IPA3 && DEBUG_FS

	depends on IPA3 && DEBUG_FS

drivers/platform/msm/ipa/ipa_v3/Makefile

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@@ -7,3 +7,5 @@ ipat-y := ipa.o ipa_debugfs.o ipa_hdr.o ipa_flt.o ipa_rt.o ipa_dp.o ipa_client.o 
	ipa_hw_stats.o ipa_pm.o ipa_wdi3_i.o

	ipa_hw_stats.o ipa_pm.o ipa_wdi3_i.o





obj-$(CONFIG_RMNET_IPA3) += rmnet_ipa.o ipa_qmi_service_v01.o ipa_qmi_service.o rmnet_ipa_fd_ioctl.o

obj-$(CONFIG_RMNET_IPA3) += rmnet_ipa.o ipa_qmi_service_v01.o ipa_qmi_service.o rmnet_ipa_fd_ioctl.o



obj-$(CONFIG_IPA3_MHI_PROXY) += ipa_mhi_proxy.o

drivers/platform/msm/ipa/ipa_v3/ipa_i.h

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@@ -2238,6 +2238,7 @@ int ipa3_uc_mhi_resume_channel(int channelHandle, bool LPTransitionRejected); 
int ipa3_uc_mhi_stop_event_update_channel(int channelHandle);

int ipa3_uc_mhi_stop_event_update_channel(int channelHandle);

int ipa3_uc_mhi_print_stats(char *dbg_buff, int size);

int ipa3_uc_mhi_print_stats(char *dbg_buff, int size);

int ipa3_uc_memcpy(phys_addr_t dest, phys_addr_t src, int len);

int ipa3_uc_memcpy(phys_addr_t dest, phys_addr_t src, int len);

int ipa3_uc_send_remote_ipa_info(u32 remote_addr, uint32_t mbox_n);

void ipa3_tag_destroy_imm(void *user1, int user2);

void ipa3_tag_destroy_imm(void *user1, int user2);

const struct ipa_gsi_ep_config *ipa3_get_gsi_ep_info

const struct ipa_gsi_ep_config *ipa3_get_gsi_ep_info

	(enum ipa_client_type client);

	(enum ipa_client_type client);

drivers/platform/msm/ipa/ipa_v3/ipa_mhi_proxy.c

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File added.

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