When device enters flash programmer context (FP), it exposes firehose
protocol through the EDL dedicated channels.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
drivers/bus/mhi/pci_generic.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
index 544853c..fda3e88d 100644
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -145,6 +145,36 @@ struct mhi_pci_dev_info {
.doorbell_mode_switch = false, \
}
+#define MHI_CHANNEL_CONFIG_UL_FP(ch_num, ch_name, el_count, ev_ring) \
+ { \
+ .num = ch_num, \
+ .name = ch_name, \
+ .num_elements = el_count, \
+ .event_ring = ev_ring, \
+ .dir = DMA_TO_DEVICE, \
+ .ee_mask = BIT(MHI_EE_FP), \
+ .pollcfg = 0, \
+ .doorbell = MHI_DB_BRST_DISABLE, \
+ .lpm_notify = false, \
+ .offload_channel = false, \
+ .doorbell_mode_switch = false, \
+ } \
+
+#define MHI_CHANNEL_CONFIG_DL_FP(ch_num, ch_name, el_count, ev_ring) \
+ { \
+ .num = ch_num, \
+ .name = ch_name, \
+ .num_elements = el_count, \
+ .event_ring = ev_ring, \
+ .dir = DMA_FROM_DEVICE, \
+ .ee_mask = BIT(MHI_EE_FP), \
+ .pollcfg = 0, \
+ .doorbell = MHI_DB_BRST_DISABLE, \
+ .lpm_notify = false, \
+ .offload_channel = false, \
+ .doorbell_mode_switch = false, \
+ }
+
#define MHI_EVENT_CONFIG_DATA(ev_ring, el_count) \
{ \
.num_elements = el_count, \
@@ -181,6 +211,8 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = {
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_UL_FP(34, "FIREHOSE", 32, 0),
+ MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0),
MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2),
MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
};
@@ -241,6 +273,9 @@ static const struct mhi_channel_config mhi_quectel_em1xx_channels[] = {
MHI_CHANNEL_CONFIG_DL(13, "MBIM", 32, 0),
MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0),
MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0),
+ /* The EDL firmware is a flash-programmer exposing firehose protocol */
+ MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0),
+ MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0),
MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0_MBIM", 128, 2),
MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
};
--
2.7.4
