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mhi: pci_generic: Add diag channels

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Add support for Diag over MHI. Qualcomm Diag is the qualcomm
diagnostics interface that can be used to collect modem logs,
events, traces, etc. It can be used by tools such QPST or QXDM.

This patch adds the DIAG channels and a dedicated event ring.

Reviewed-by Hemant Kumar <hemantk@codeaurora.org>

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Loic Poulain 2021-01-04 17:14:58 +01:00 committed by Manivannan Sadhasivam
parent 84026a5bbc
commit 4da3d07db8
1 changed files with 8 additions and 4 deletions
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12
drivers/bus/mhi/pci_generic.c
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@ -142,22 +142,26 @@ struct mhi_pci_dev_info {
}
static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = {
MHI_CHANNEL_CONFIG_UL(4, "DIAG", 16, 1),
MHI_CHANNEL_CONFIG_DL(5, "DIAG", 16, 1),
MHI_CHANNEL_CONFIG_UL(12, "MBIM", 4, 0),
MHI_CHANNEL_CONFIG_DL(13, "MBIM", 4, 0),
MHI_CHANNEL_CONFIG_UL(14, "QMI", 4, 0),
MHI_CHANNEL_CONFIG_DL(15, "QMI", 4, 0),
MHI_CHANNEL_CONFIG_UL(20, "IPCR", 8, 0),
MHI_CHANNEL_CONFIG_DL(21, "IPCR", 8, 0),
MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 1),
MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 2),
MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2),
MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
};
static const struct mhi_event_config modem_qcom_v1_mhi_events[] = {
/* first ring is control+data ring */
MHI_EVENT_CONFIG_CTRL(0),
/* DIAG dedicated event ring */
MHI_EVENT_CONFIG_DATA(1),
/* Hardware channels request dedicated hardware event rings */
MHI_EVENT_CONFIG_HW_DATA(1, 100),
MHI_EVENT_CONFIG_HW_DATA(2, 101)
MHI_EVENT_CONFIG_HW_DATA(2, 100),
MHI_EVENT_CONFIG_HW_DATA(3, 101)
};
static const struct mhi_controller_config modem_qcom_v1_mhiv_config = {