[PATCH 1/1] bus: mhi: pci_generic: add Rolling Wireless RW135R-GL and RW151 support

From: Wanquan Zhong <[email protected]>

bus: mhi: pci_generic: add Rolling Wireless RW135R-GL and RW151 support

Add MHI PCIe device configuration for Rolling Wireless modules:

- RW135R-GL (Qualcomm sdx35): MBIM, DIAG, DUN, NMEA, FIREHOSE, ADB, IP_HW0
- RW151 (Qualcomm sdx75): same channel layout with adjusted ring sizes

Register PCI_DEVICE_SUB entries for vendor 0x2099, device 0x1300/1301 on
QCOM 0x011a (sdx35) and 0x0309 (sdx75) respectively.

Enable the ADB MHI channel in mhi_wwan_ctrl so userspace can access the
WWAN_PORT_ADB port via the wwan subsystem.

Tested-on: Rolling RW135R-GL / RW151 hardware (MHI probe, MBIM, DIAG, ADB)

Signed-off-by: Wanquan Zhong <[email protected]>
---
 drivers/bus/mhi/host/pci_generic.c | 100 +++++++++++++++++++++++++++++
 drivers/net/wwan/mhi_wwan_ctrl.c   |   1 +
 2 files changed, 101 insertions(+)

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 0884a384b77f..ad166de2d0f3 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -902,6 +902,94 @@ static const struct mhi_pci_dev_info mhi_netprisma_fcun69_info = {
 	.sideband_wake = true,
 };
 
+static const struct mhi_channel_config mhi_rolling_rw135r_channels[] = {
+	MHI_CHANNEL_CONFIG_UL(4, "DIAG", 64, 1),
+	MHI_CHANNEL_CONFIG_DL(5, "DIAG", 64, 1),
+	MHI_CHANNEL_CONFIG_UL(12, "MBIM", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(13, "MBIM", 32, 0),
+	MHI_CHANNEL_CONFIG_UL(14, "NMEA", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(15, "NMEA", 32, 0),
+	MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0),
+	MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0),
+	MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0),
+	MHI_CHANNEL_CONFIG_UL(36, "ADB", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(37, "ADB", 32, 0),
+	MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2),
+	MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
+};
+
+static struct mhi_event_config mhi_rolling_rw135r_events[] = {
+	MHI_EVENT_CONFIG_CTRL(0, 128),
+	MHI_EVENT_CONFIG_DATA(1, 128),
+	MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
+	MHI_EVENT_CONFIG_HW_DATA(3, 2048, 101),
+};
+
+static const struct mhi_controller_config modem_rolling_rw135r_config = {
+	.max_channels = 128,
+	.timeout_ms = 8000,
+	.num_channels = ARRAY_SIZE(mhi_rolling_rw135r_channels),
+	.ch_cfg = mhi_rolling_rw135r_channels,
+	.num_events = ARRAY_SIZE(mhi_rolling_rw135r_events),
+	.event_cfg = mhi_rolling_rw135r_events,
+};
+
+static const struct mhi_pci_dev_info mhi_rolling_rw135r_info = {
+	.edl = "qcom/sdx35m/prog_firehose_ddr.elf",
+	.name = "rolling-rw135r",
+	.config = &modem_rolling_rw135r_config,
+	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
+	.dma_data_width = 32,
+	.sideband_wake = false,
+	.mru_default = 32768,
+	.edl_trigger = true,
+};
+
+static const struct mhi_channel_config mhi_rolling_rw151_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, "NMEA", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(15, "NMEA", 32, 0),
+	MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0),
+	MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0),
+	MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0),
+	MHI_CHANNEL_CONFIG_UL(36, "ADB", 32, 0),
+	MHI_CHANNEL_CONFIG_DL(37, "ADB", 32, 0),
+	MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2),
+	MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
+};
+
+static struct mhi_event_config mhi_rolling_rw151_events[] = {
+	MHI_EVENT_CONFIG_CTRL(0, 128),
+	MHI_EVENT_CONFIG_DATA(1, 128),
+	MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
+	MHI_EVENT_CONFIG_HW_DATA(3, 2048, 101),
+};
+
+static const struct mhi_controller_config modem_rolling_rw151_config = {
+	.max_channels = 128,
+	.timeout_ms = 50000,
+	.num_channels = ARRAY_SIZE(mhi_rolling_rw151_channels),
+	.ch_cfg = mhi_rolling_rw151_channels,
+	.num_events = ARRAY_SIZE(mhi_rolling_rw151_events),
+	.event_cfg = mhi_rolling_rw151_events,
+};
+
+static const struct mhi_pci_dev_info mhi_rolling_rw151_info = {
+	.edl = "qcom/sdx75m/prog_firehose_lite.elf",
+	.name = "rolling-rw151",
+	.config = &modem_rolling_rw151_config,
+	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
+	.dma_data_width = 32,
+	.sideband_wake = false,
+	.mru_default = 32768,
+	.edl_trigger = true,
+};
+
 /* Keep the list sorted based on the PID. New VID should be added as the last entry */
 static const struct pci_device_id mhi_pci_id_table[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0116),
@@ -909,6 +997,12 @@ static const struct pci_device_id mhi_pci_id_table[] = {
 	/* Telit FN920C04 (sdx35) */
 	{PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x011a, 0x1c5d, 0x2020),
 		.driver_data = (kernel_ulong_t) &mhi_telit_fn920c04_info },
+	/* Rolling RW135R-GL (sdx35) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x011a, 0x2099, 0x1300),
+		.driver_data = (kernel_ulong_t) &mhi_rolling_rw135r_info },
+	/* Rolling RW135R-GL (sdx35) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x011a, 0x2099, 0x1301),
+		.driver_data = (kernel_ulong_t) &mhi_rolling_rw135r_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0304),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx24_info },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, PCI_VENDOR_ID_QCOM, 0x010c),
@@ -941,6 +1035,12 @@ static const struct pci_device_id mhi_pci_id_table[] = {
 	/* Telit FE990B40 (sdx72) */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0309, 0x1c5d, 0x2025),
 		.driver_data = (kernel_ulong_t) &mhi_telit_fe990b40_info },
+	/* Rolling RW151 (sdx75) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0309, 0x2099, 0x1300),
+		.driver_data = (kernel_ulong_t) &mhi_rolling_rw151_info },
+	/* Rolling RW151 (sdx75) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0309, 0x2099, 0x1301),
+		.driver_data = (kernel_ulong_t) &mhi_rolling_rw151_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0309),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx75_info },
 	/* QDU100, x100-DU */
diff --git a/drivers/net/wwan/mhi_wwan_ctrl.c b/drivers/net/wwan/mhi_wwan_ctrl.c
index fa73861db6ad..c0bba94d5c3f 100644
--- a/drivers/net/wwan/mhi_wwan_ctrl.c
+++ b/drivers/net/wwan/mhi_wwan_ctrl.c
@@ -264,6 +264,7 @@ static const struct mhi_device_id mhi_wwan_ctrl_match_table[] = {
 	{ .chan = "DIAG", .driver_data = WWAN_PORT_QCDM },
 	{ .chan = "FIREHOSE", .driver_data = WWAN_PORT_FIREHOSE },
 	{ .chan = "NMEA", .driver_data = WWAN_PORT_NMEA },
+	{ .chan = "ADB", .driver_data = WWAN_PORT_ADB },
 	{},
 };
 MODULE_DEVICE_TABLE(mhi, mhi_wwan_ctrl_match_table);

--
2.43.0