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.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
drivers/bus/mhi/pci_generic.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
index 0c48884..6f15b1d 100644
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -140,22 +140,26 @@ 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 = {
--
2.7.4
