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-rw-r--r--drivers/usb/dwc3/Kconfig17
-rw-r--r--drivers/usb/dwc3/Makefile7
-rw-r--r--drivers/usb/dwc3/core.c9
-rw-r--r--drivers/usb/dwc3/core.h4
-rw-r--r--drivers/usb/dwc3/debug.c32
-rw-r--r--drivers/usb/dwc3/debug.h200
-rw-r--r--drivers/usb/dwc3/dwc3-exynos.c4
-rw-r--r--drivers/usb/dwc3/dwc3-keystone.c1
-rw-r--r--drivers/usb/dwc3/dwc3-omap.c4
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c4
-rw-r--r--drivers/usb/dwc3/dwc3-qcom.c130
-rw-r--r--drivers/usb/dwc3/dwc3-st.c367
-rw-r--r--drivers/usb/dwc3/ep0.c65
-rw-r--r--drivers/usb/dwc3/gadget.c140
-rw-r--r--drivers/usb/dwc3/gadget.h56
-rw-r--r--drivers/usb/dwc3/io.h30
-rw-r--r--drivers/usb/dwc3/trace.c19
-rw-r--r--drivers/usb/dwc3/trace.h220
18 files changed, 1083 insertions, 226 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 785510a0a0c3..f4e5cc60db0b 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -80,6 +80,23 @@ config USB_DWC3_KEYSTONE
Support of USB2/3 functionality in TI Keystone2 platforms.
Say 'Y' or 'M' here if you have one such device
+config USB_DWC3_ST
+ tristate "STMicroelectronics Platforms"
+ depends on ARCH_STI && OF
+ default USB_DWC3
+ help
+ STMicroelectronics SoCs with one DesignWare Core USB3 IP
+ inside (i.e. STiH407).
+ Say 'Y' or 'M' if you have one such device.
+
+config USB_DWC3_QCOM
+ tristate "Qualcomm Platforms"
+ depends on ARCH_QCOM || COMPILE_TEST
+ default USB_DWC3
+ help
+ Recent Qualcomm SoCs ship with one DesignWare Core USB3 IP inside,
+ say 'Y' or 'M' if you have one such device.
+
comment "Debugging features"
config USB_DWC3_DEBUG
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 10ac3e72482e..bb34fbcfeab3 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -1,9 +1,12 @@
+# define_trace.h needs to know how to find our header
+CFLAGS_trace.o := -I$(src)
+
ccflags-$(CONFIG_USB_DWC3_DEBUG) := -DDEBUG
ccflags-$(CONFIG_USB_DWC3_VERBOSE) += -DVERBOSE_DEBUG
obj-$(CONFIG_USB_DWC3) += dwc3.o
-dwc3-y := core.o
+dwc3-y := core.o debug.o trace.o
ifneq ($(filter y,$(CONFIG_USB_DWC3_HOST) $(CONFIG_USB_DWC3_DUAL_ROLE)),)
dwc3-y += host.o
@@ -33,3 +36,5 @@ obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o
obj-$(CONFIG_USB_DWC3_EXYNOS) += dwc3-exynos.o
obj-$(CONFIG_USB_DWC3_PCI) += dwc3-pci.o
obj-$(CONFIG_USB_DWC3_KEYSTONE) += dwc3-keystone.o
+obj-$(CONFIG_USB_DWC3_QCOM) += dwc3-qcom.o
+obj-$(CONFIG_USB_DWC3_ST) += dwc3-st.o
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 9069984fe5cf..b0f4d52b7f04 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -186,10 +186,8 @@ static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
dwc->ev_buffs = devm_kzalloc(dwc->dev, sizeof(*dwc->ev_buffs) * num,
GFP_KERNEL);
- if (!dwc->ev_buffs) {
- dev_err(dwc->dev, "can't allocate event buffers array\n");
+ if (!dwc->ev_buffs)
return -ENOMEM;
- }
for (i = 0; i < num; i++) {
struct dwc3_event_buffer *evt;
@@ -639,10 +637,9 @@ static int dwc3_probe(struct platform_device *pdev)
void *mem;
mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
- if (!mem) {
- dev_err(dev, "not enough memory\n");
+ if (!mem)
return -ENOMEM;
- }
+
dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
dwc->mem = mem;
dwc->dev = dev;
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 48fb264065db..66f62563bcf9 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -33,6 +33,8 @@
#include <linux/phy/phy.h>
+#define DWC3_MSG_MAX 500
+
/* Global constants */
#define DWC3_EP0_BOUNCE_SIZE 512
#define DWC3_ENDPOINTS_NUM 32
@@ -938,7 +940,7 @@ int dwc3_gadget_get_link_state(struct dwc3 *dwc);
int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
-int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param);
+int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param);
#else
static inline int dwc3_gadget_init(struct dwc3 *dwc)
{ return 0; }
diff --git a/drivers/usb/dwc3/debug.c b/drivers/usb/dwc3/debug.c
new file mode 100644
index 000000000000..0be6885bc370
--- /dev/null
+++ b/drivers/usb/dwc3/debug.c
@@ -0,0 +1,32 @@
+/**
+ * debug.c - DesignWare USB3 DRD Controller Debug/Trace Support
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "debug.h"
+
+void dwc3_trace(void (*trace)(struct va_format *), const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ trace(&vaf);
+
+ va_end(args);
+}
diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index fceb39dc4bba..07fbc2d94fd4 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -16,8 +16,206 @@
* GNU General Public License for more details.
*/
+#ifndef __DWC3_DEBUG_H
+#define __DWC3_DEBUG_H
+
#include "core.h"
+/**
+ * dwc3_gadget_ep_cmd_string - returns endpoint command string
+ * @cmd: command code
+ */
+static inline const char *
+dwc3_gadget_ep_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ case DWC3_DEPCMD_DEPSTARTCFG:
+ return "Start New Configuration";
+ case DWC3_DEPCMD_ENDTRANSFER:
+ return "End Transfer";
+ case DWC3_DEPCMD_UPDATETRANSFER:
+ return "Update Transfer";
+ case DWC3_DEPCMD_STARTTRANSFER:
+ return "Start Transfer";
+ case DWC3_DEPCMD_CLEARSTALL:
+ return "Clear Stall";
+ case DWC3_DEPCMD_SETSTALL:
+ return "Set Stall";
+ case DWC3_DEPCMD_GETEPSTATE:
+ return "Get Endpoint State";
+ case DWC3_DEPCMD_SETTRANSFRESOURCE:
+ return "Set Endpoint Transfer Resource";
+ case DWC3_DEPCMD_SETEPCONFIG:
+ return "Set Endpoint Configuration";
+ default:
+ return "UNKNOWN command";
+ }
+}
+
+/**
+ * dwc3_gadget_generic_cmd_string - returns generic command string
+ * @cmd: command code
+ */
+static inline const char *
+dwc3_gadget_generic_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ case DWC3_DGCMD_SET_LMP:
+ return "Set LMP";
+ case DWC3_DGCMD_SET_PERIODIC_PAR:
+ return "Set Periodic Parameters";
+ case DWC3_DGCMD_XMIT_FUNCTION:
+ return "Transmit Function Wake Device Notification";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
+ return "Set Scratchpad Buffer Array Address Lo";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
+ return "Set Scratchpad Buffer Array Address Hi";
+ case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
+ return "Selected FIFO Flush";
+ case DWC3_DGCMD_ALL_FIFO_FLUSH:
+ return "All FIFO Flush";
+ case DWC3_DGCMD_SET_ENDPOINT_NRDY:
+ return "Set Endpoint NRDY";
+ case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
+ return "Run SoC Bus Loopback Test";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+/**
+ * dwc3_gadget_link_string - returns link name
+ * @link_state: link state code
+ */
+static inline const char *
+dwc3_gadget_link_string(enum dwc3_link_state link_state)
+{
+ switch (link_state) {
+ case DWC3_LINK_STATE_U0:
+ return "U0";
+ case DWC3_LINK_STATE_U1:
+ return "U1";
+ case DWC3_LINK_STATE_U2:
+ return "U2";
+ case DWC3_LINK_STATE_U3:
+ return "U3";
+ case DWC3_LINK_STATE_SS_DIS:
+ return "SS.Disabled";
+ case DWC3_LINK_STATE_RX_DET:
+ return "RX.Detect";
+ case DWC3_LINK_STATE_SS_INACT:
+ return "SS.Inactive";
+ case DWC3_LINK_STATE_POLL:
+ return "Polling";
+ case DWC3_LINK_STATE_RECOV:
+ return "Recovery";
+ case DWC3_LINK_STATE_HRESET:
+ return "Hot Reset";
+ case DWC3_LINK_STATE_CMPLY:
+ return "Compliance";
+ case DWC3_LINK_STATE_LPBK:
+ return "Loopback";
+ case DWC3_LINK_STATE_RESET:
+ return "Reset";
+ case DWC3_LINK_STATE_RESUME:
+ return "Resume";
+ default:
+ return "UNKNOWN link state\n";
+ }
+}
+
+/**
+ * dwc3_gadget_event_string - returns event name
+ * @event: the event code
+ */
+static inline const char *dwc3_gadget_event_string(u8 event)
+{
+ switch (event) {
+ case DWC3_DEVICE_EVENT_DISCONNECT:
+ return "Disconnect";
+ case DWC3_DEVICE_EVENT_RESET:
+ return "Reset";
+ case DWC3_DEVICE_EVENT_CONNECT_DONE:
+ return "Connection Done";
+ case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
+ return "Link Status Change";
+ case DWC3_DEVICE_EVENT_WAKEUP:
+ return "WakeUp";
+ case DWC3_DEVICE_EVENT_EOPF:
+ return "End-Of-Frame";
+ case DWC3_DEVICE_EVENT_SOF:
+ return "Start-Of-Frame";
+ case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
+ return "Erratic Error";
+ case DWC3_DEVICE_EVENT_CMD_CMPL:
+ return "Command Complete";
+ case DWC3_DEVICE_EVENT_OVERFLOW:
+ return "Overflow";
+ }
+
+ return "UNKNOWN";
+}
+
+/**
+ * dwc3_ep_event_string - returns event name
+ * @event: then event code
+ */
+static inline const char *dwc3_ep_event_string(u8 event)
+{
+ switch (event) {
+ case DWC3_DEPEVT_XFERCOMPLETE:
+ return "Transfer Complete";
+ case DWC3_DEPEVT_XFERINPROGRESS:
+ return "Transfer In-Progress";
+ case DWC3_DEPEVT_XFERNOTREADY:
+ return "Transfer Not Ready";
+ case DWC3_DEPEVT_RXTXFIFOEVT:
+ return "FIFO";
+ case DWC3_DEPEVT_STREAMEVT:
+ return "Stream";
+ case DWC3_DEPEVT_EPCMDCMPLT:
+ return "Endpoint Command Complete";
+ }
+
+ return "UNKNOWN";
+}
+
+/**
+ * dwc3_gadget_event_type_string - return event name
+ * @event: the event code
+ */
+static inline const char *dwc3_gadget_event_type_string(u8 event)
+{
+ switch (event) {
+ case DWC3_DEVICE_EVENT_DISCONNECT:
+ return "Disconnect";
+ case DWC3_DEVICE_EVENT_RESET:
+ return "Reset";
+ case DWC3_DEVICE_EVENT_CONNECT_DONE:
+ return "Connect Done";
+ case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
+ return "Link Status Change";
+ case DWC3_DEVICE_EVENT_WAKEUP:
+ return "Wake-Up";
+ case DWC3_DEVICE_EVENT_HIBER_REQ:
+ return "Hibernation";
+ case DWC3_DEVICE_EVENT_EOPF:
+ return "End of Periodic Frame";
+ case DWC3_DEVICE_EVENT_SOF:
+ return "Start of Frame";
+ case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
+ return "Erratic Error";
+ case DWC3_DEVICE_EVENT_CMD_CMPL:
+ return "Command Complete";
+ case DWC3_DEVICE_EVENT_OVERFLOW:
+ return "Overflow";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+void dwc3_trace(void (*trace)(struct va_format *), const char *fmt, ...);
+
#ifdef CONFIG_DEBUG_FS
extern int dwc3_debugfs_init(struct dwc3 *);
extern void dwc3_debugfs_exit(struct dwc3 *);
@@ -27,4 +225,4 @@ static inline int dwc3_debugfs_init(struct dwc3 *d)
static inline void dwc3_debugfs_exit(struct dwc3 *d)
{ }
#endif
-
+#endif /* __DWC3_DEBUG_H */
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index f9fb8adb785b..3951a65fea04 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -113,10 +113,8 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
int ret;
exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
- if (!exynos) {
- dev_err(dev, "not enough memory\n");
+ if (!exynos)
return -ENOMEM;
- }
/*
* Right now device-tree probed devices don't get dma_mask set.
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index 1fad1618df6e..7ec8495f4523 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -189,7 +189,6 @@ static struct platform_driver kdwc3_driver = {
.remove = kdwc3_remove,
.driver = {
.name = "keystone-dwc3",
- .owner = THIS_MODULE,
.of_match_table = kdwc3_of_match,
},
};
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index fc0de3753648..2f537d588225 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -481,10 +481,8 @@ static int dwc3_omap_probe(struct platform_device *pdev)
}
omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
- if (!omap) {
- dev_err(dev, "not enough memory\n");
+ if (!omap)
return -ENOMEM;
- }
platform_set_drvdata(pdev, omap);
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index a60bab7dfa0a..436fb08c40b8 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -103,10 +103,8 @@ static int dwc3_pci_probe(struct pci_dev *pci,
struct device *dev = &pci->dev;
glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(dev, "not enough memory\n");
+ if (!glue)
return -ENOMEM;
- }
glue->dev = dev;
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
new file mode 100644
index 000000000000..8c2e8eec80c2
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -0,0 +1,130 @@
+/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+struct dwc3_qcom {
+ struct device *dev;
+
+ struct clk *core_clk;
+ struct clk *iface_clk;
+ struct clk *sleep_clk;
+};
+
+static int dwc3_qcom_probe(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct dwc3_qcom *qdwc;
+ int ret;
+
+ qdwc = devm_kzalloc(&pdev->dev, sizeof(*qdwc), GFP_KERNEL);
+ if (!qdwc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, qdwc);
+
+ qdwc->dev = &pdev->dev;
+
+ qdwc->core_clk = devm_clk_get(qdwc->dev, "core");
+ if (IS_ERR(qdwc->core_clk)) {
+ dev_err(qdwc->dev, "failed to get core clock\n");
+ return PTR_ERR(qdwc->core_clk);
+ }
+
+ qdwc->iface_clk = devm_clk_get(qdwc->dev, "iface");
+ if (IS_ERR(qdwc->iface_clk)) {
+ dev_dbg(qdwc->dev, "failed to get optional iface clock\n");
+ qdwc->iface_clk = NULL;
+ }
+
+ qdwc->sleep_clk = devm_clk_get(qdwc->dev, "sleep");
+ if (IS_ERR(qdwc->sleep_clk)) {
+ dev_dbg(qdwc->dev, "failed to get optional sleep clock\n");
+ qdwc->sleep_clk = NULL;
+ }
+
+ ret = clk_prepare_enable(qdwc->core_clk);
+ if (ret) {
+ dev_err(qdwc->dev, "failed to enable core clock\n");
+ goto err_core;
+ }
+
+ ret = clk_prepare_enable(qdwc->iface_clk);
+ if (ret) {
+ dev_err(qdwc->dev, "failed to enable optional iface clock\n");
+ goto err_iface;
+ }
+
+ ret = clk_prepare_enable(qdwc->sleep_clk);
+ if (ret) {
+ dev_err(qdwc->dev, "failed to enable optional sleep clock\n");
+ goto err_sleep;
+ }
+
+ ret = of_platform_populate(node, NULL, NULL, qdwc->dev);
+ if (ret) {
+ dev_err(qdwc->dev, "failed to register core - %d\n", ret);
+ goto err_clks;
+ }
+
+ return 0;
+
+err_clks:
+ clk_disable_unprepare(qdwc->sleep_clk);
+err_sleep:
+ clk_disable_unprepare(qdwc->iface_clk);
+err_iface:
+ clk_disable_unprepare(qdwc->core_clk);
+err_core:
+ return ret;
+}
+
+static int dwc3_qcom_remove(struct platform_device *pdev)
+{
+ struct dwc3_qcom *qdwc = platform_get_drvdata(pdev);
+
+ of_platform_depopulate(&pdev->dev);
+
+ clk_disable_unprepare(qdwc->sleep_clk);
+ clk_disable_unprepare(qdwc->iface_clk);
+ clk_disable_unprepare(qdwc->core_clk);
+
+ return 0;
+}
+
+static const struct of_device_id of_dwc3_match[] = {
+ { .compatible = "qcom,dwc3" },
+ { /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_dwc3_match);
+
+static struct platform_driver dwc3_qcom_driver = {
+ .probe = dwc3_qcom_probe,
+ .remove = dwc3_qcom_remove,
+ .driver = {
+ .name = "qcom-dwc3",
+ .of_match_table = of_dwc3_match,
+ },
+};
+
+module_platform_driver(dwc3_qcom_driver);
+
+MODULE_ALIAS("platform:qcom-dwc3");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("DesignWare USB3 QCOM Glue Layer");
+MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>");
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
new file mode 100644
index 000000000000..c7602b5362ad
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -0,0 +1,367 @@
+/**
+ * dwc3-st.c Support for dwc3 platform devices on ST Microelectronics platforms
+ *
+ * This is a small driver for the dwc3 to provide the glue logic
+ * to configure the controller. Tested on STi platforms.
+ *
+ * Copyright (C) 2014 Stmicroelectronics
+ *
+ * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+ * Contributors: Aymen Bouattay <aymen.bouattay@st.com>
+ * Peter Griffin <peter.griffin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Inspired by dwc3-omap.c and dwc3-exynos.c.
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/usb/of.h>
+
+#include "core.h"
+#include "io.h"
+
+/* glue registers */
+#define CLKRST_CTRL 0x00
+#define AUX_CLK_EN BIT(0)
+#define SW_PIPEW_RESET_N BIT(4)
+#define EXT_CFG_RESET_N BIT(8)
+/*
+ * 1'b0 : The host controller complies with the xHCI revision 0.96
+ * 1'b1 : The host controller complies with the xHCI revision 1.0
+ */
+#define XHCI_REVISION BIT(12)
+
+#define USB2_VBUS_MNGMNT_SEL1 0x2C
+/*
+ * For all fields in USB2_VBUS_MNGMNT_SEL1
+ * 2’b00 : Override value from Reg 0x30 is selected
+ * 2’b01 : utmiotg_<signal_name> from usb3_top is selected
+ * 2’b10 : pipew_<signal_name> from PIPEW instance is selected
+ * 2’b11 : value is 1'b0
+ */
+#define USB2_VBUS_REG30 0x0
+#define USB2_VBUS_UTMIOTG 0x1
+#define USB2_VBUS_PIPEW 0x2
+#define USB2_VBUS_ZERO 0x3
+
+#define SEL_OVERRIDE_VBUSVALID(n) (n << 0)
+#define SEL_OVERRIDE_POWERPRESENT(n) (n << 4)
+#define SEL_OVERRIDE_BVALID(n) (n << 8)
+
+/* Static DRD configuration */
+#define USB3_CONTROL_MASK 0xf77
+
+#define USB3_DEVICE_NOT_HOST BIT(0)
+#define USB3_FORCE_VBUSVALID BIT(1)
+#define USB3_DELAY_VBUSVALID BIT(2)
+#define USB3_SEL_FORCE_OPMODE BIT(4)
+#define USB3_FORCE_OPMODE(n) (n << 5)
+#define USB3_SEL_FORCE_DPPULLDOWN2 BIT(8)
+#define USB3_FORCE_DPPULLDOWN2 BIT(9)
+#define USB3_SEL_FORCE_DMPULLDOWN2 BIT(10)
+#define USB3_FORCE_DMPULLDOWN2 BIT(11)
+
+/**
+ * struct st_dwc3 - dwc3-st driver private structure
+ * @dev: device pointer
+ * @glue_base: ioaddr for the glue registers
+ * @regmap: regmap pointer for getting syscfg
+ * @syscfg_reg_off: usb syscfg control offset
+ * @dr_mode: drd static host/device config
+ * @rstc_pwrdn: rest controller for powerdown signal
+ * @rstc_rst: reset controller for softreset signal
+ */
+
+struct st_dwc3 {
+ struct device *dev;
+ void __iomem *glue_base;
+ struct regmap *regmap;
+ int syscfg_reg_off;
+ enum usb_dr_mode dr_mode;
+ struct reset_control *rstc_pwrdn;
+ struct reset_control *rstc_rst;
+};
+
+static inline u32 st_dwc3_readl(void __iomem *base, u32 offset)
+{
+ return readl_relaxed(base + offset);
+}
+
+static inline void st_dwc3_writel(void __iomem *base, u32 offset, u32 value)
+{
+ writel_relaxed(value, base + offset);
+}
+
+/**
+ * st_dwc3_drd_init: program the port
+ * @dwc3_data: driver private structure
+ * Description: this function is to program the port as either host or device
+ * according to the static configuration passed from devicetree.
+ * OTG and dual role are not yet supported!
+ */
+static int st_dwc3_drd_init(struct st_dwc3 *dwc3_data)
+{
+ u32 val;
+ int err;
+
+ err = regmap_read(dwc3_data->regmap, dwc3_data->syscfg_reg_off, &val);
+ if (err)
+ return err;
+
+ val &= USB3_CONTROL_MASK;
+
+ switch (dwc3_data->dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+
+ val &= ~(USB3_FORCE_VBUSVALID | USB3_DELAY_VBUSVALID
+ | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3)
+ | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2
+ | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2);
+
+ val |= USB3_DEVICE_NOT_HOST;
+
+ dev_dbg(dwc3_data->dev, "Configuring as Device\n");
+ break;
+
+ case USB_DR_MODE_HOST:
+
+ val &= ~(USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID
+ | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3)
+ | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2
+ | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2);
+
+ /*
+ * USB3_DELAY_VBUSVALID is ANDed with USB_C_VBUSVALID. Thus,
+ * when set to ‘0‘, it can delay the arrival of VBUSVALID
+ * information to VBUSVLDEXT2 input of the pico PHY.
+ * We don't want to do that so we set the bit to '1'.
+ */
+
+ val |= USB3_DELAY_VBUSVALID;
+
+ dev_dbg(dwc3_data->dev, "Configuring as Host\n");
+ break;
+
+ default:
+ dev_err(dwc3_data->dev, "Unsupported mode of operation %d\n",
+ dwc3_data->dr_mode);
+ return -EINVAL;
+ }
+
+ return regmap_write(dwc3_data->regmap, dwc3_data->syscfg_reg_off, val);
+}
+
+/**
+ * st_dwc3_init: init the controller via glue logic
+ * @dwc3_data: driver private structure
+ */
+static void st_dwc3_init(struct st_dwc3 *dwc3_data)
+{
+ u32 reg = st_dwc3_readl(dwc3_data->glue_base, CLKRST_CTRL);
+
+ reg |= AUX_CLK_EN | EXT_CFG_RESET_N | XHCI_REVISION;
+ reg &= ~SW_PIPEW_RESET_N;
+ st_dwc3_writel(dwc3_data->glue_base, CLKRST_CTRL, reg);
+
+ /* configure mux for vbus, powerpresent and bvalid signals */
+ reg = st_dwc3_readl(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1);
+
+ reg |= SEL_OVERRIDE_VBUSVALID(USB2_VBUS_UTMIOTG) |
+ SEL_OVERRIDE_POWERPRESENT(USB2_VBUS_UTMIOTG) |
+ SEL_OVERRIDE_BVALID(USB2_VBUS_UTMIOTG);
+
+ st_dwc3_writel(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1, reg);
+
+ reg = st_dwc3_readl(dwc3_data->glue_base, CLKRST_CTRL);
+ reg |= SW_PIPEW_RESET_N;
+ st_dwc3_writel(dwc3_data->glue_base, CLKRST_CTRL, reg);
+}
+
+static int st_dwc3_probe(struct platform_device *pdev)
+{
+ struct st_dwc3 *dwc3_data;
+ struct resource *res;
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node, *child;
+ struct regmap *regmap;
+ int ret;
+
+ dwc3_data = devm_kzalloc(dev, sizeof(*dwc3_data), GFP_KERNEL);
+ if (!dwc3_data)
+ return -ENOMEM;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg-glue");
+ dwc3_data->glue_base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(dwc3_data->glue_base))
+ return PTR_ERR(dwc3_data->glue_base);
+
+ regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg");
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ dma_set_coherent_mask(dev, dev->coherent_dma_mask);
+ dwc3_data->dev = dev;
+ dwc3_data->regmap = regmap;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg");
+ if (!res) {
+ ret = -ENXIO;
+ goto undo_platform_dev_alloc;
+ }
+
+ dwc3_data->syscfg_reg_off = res->start;
+
+ dev_vdbg(&pdev->dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n",
+ dwc3_data->glue_base, dwc3_data->syscfg_reg_off);
+
+ dwc3_data->rstc_pwrdn = devm_reset_control_get(dev, "powerdown");
+ if (IS_ERR(dwc3_data->rstc_pwrdn)) {
+ dev_err(&pdev->dev, "could not get power controller\n");
+ ret = PTR_ERR(dwc3_data->rstc_pwrdn);
+ goto undo_platform_dev_alloc;
+ }
+
+ /* Manage PowerDown */
+ reset_control_deassert(dwc3_data->rstc_pwrdn);
+
+ dwc3_data->rstc_rst = devm_reset_control_get(dev, "softreset");
+ if (IS_ERR(dwc3_data->rstc_rst)) {
+ dev_err(&pdev->dev, "could not get reset controller\n");
+ ret = PTR_ERR(dwc3_data->rstc_pwrdn);
+ goto undo_powerdown;
+ }
+
+ /* Manage SoftReset */
+ reset_control_deassert(dwc3_data->rstc_rst);
+
+ child = of_get_child_by_name(node, "dwc3");
+ if (!child) {
+ dev_err(&pdev->dev, "failed to find dwc3 core node\n");
+ ret = -ENODEV;
+ goto undo_softreset;
+ }
+
+ dwc3_data->dr_mode = of_usb_get_dr_mode(child);
+
+ /* Allocate and initialize the core */
+ ret = of_platform_populate(node, NULL, NULL, dev);
+ if (ret) {
+ dev_err(dev, "failed to add dwc3 core\n");
+ goto undo_softreset;
+ }
+
+ /*
+ * Configure the USB port as device or host according to the static
+ * configuration passed from DT.
+ * DRD is the only mode currently supported so this will be enhanced
+ * as soon as OTG is available.
+ */
+ ret = st_dwc3_drd_init(dwc3_data);
+ if (ret) {
+ dev_err(dev, "drd initialisation failed\n");
+ goto undo_softreset;
+ }
+
+ /* ST glue logic init */
+ st_dwc3_init(dwc3_data);
+
+ platform_set_drvdata(pdev, dwc3_data);
+ return 0;
+
+undo_softreset:
+ reset_control_assert(dwc3_data->rstc_rst);
+undo_powerdown:
+ reset_control_assert(dwc3_data->rstc_pwrdn);
+undo_platform_dev_alloc:
+ platform_device_put(pdev);
+ return ret;
+}
+
+static int st_dwc3_remove(struct platform_device *pdev)
+{
+ struct st_dwc3 *dwc3_data = platform_get_drvdata(pdev);
+
+ of_platform_depopulate(&pdev->dev);
+
+ reset_control_assert(dwc3_data->rstc_pwrdn);
+ reset_control_assert(dwc3_data->rstc_rst);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int st_dwc3_suspend(struct device *dev)
+{
+ struct st_dwc3 *dwc3_data = dev_get_drvdata(dev);
+
+ reset_control_assert(dwc3_data->rstc_pwrdn);
+ reset_control_assert(dwc3_data->rstc_rst);
+
+ pinctrl_pm_select_sleep_state(dev);
+
+ return 0;
+}
+
+static int st_dwc3_resume(struct device *dev)
+{
+ struct st_dwc3 *dwc3_data = dev_get_drvdata(dev);
+ int ret;
+
+ pinctrl_pm_select_default_state(dev);
+
+ reset_control_deassert(dwc3_data->rstc_pwrdn);
+ reset_control_deassert(dwc3_data->rstc_rst);
+
+ ret = st_dwc3_drd_init(dwc3_data);
+ if (ret) {
+ dev_err(dev, "drd initialisation failed\n");
+ return ret;
+ }
+
+ /* ST glue logic init */
+ st_dwc3_init(dwc3_data);
+
+ return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(st_dwc3_dev_pm_ops, st_dwc3_suspend, st_dwc3_resume);
+
+static const struct of_device_id st_dwc3_match[] = {
+ { .compatible = "st,stih407-dwc3" },
+ { /* sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(of, st_dwc3_match);
+
+static struct platform_driver st_dwc3_driver = {
+ .probe = st_dwc3_probe,
+ .remove = st_dwc3_remove,
+ .driver = {
+ .name = "usb-st-dwc3",
+ .of_match_table = st_dwc3_match,
+ .pm = &st_dwc3_dev_pm_ops,
+ },
+};
+
+module_platform_driver(st_dwc3_driver);
+
+MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
+MODULE_DESCRIPTION("DesignWare USB3 STi Glue Layer");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 21a352079bc2..b35938777dde 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -31,6 +31,7 @@
#include <linux/usb/composite.h>
#include "core.h"
+#include "debug.h"
#include "gadget.h"
#include "io.h"
@@ -65,7 +66,7 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
dep = dwc->eps[epnum];
if (dep->flags & DWC3_EP_BUSY) {
- dev_vdbg(dwc->dev, "%s: still busy\n", dep->name);
+ dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
return 0;
}
@@ -88,7 +89,8 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
DWC3_DEPCMD_STARTTRANSFER, &params);
if (ret < 0) {
- dev_dbg(dwc->dev, "failed to send STARTTRANSFER command\n");
+ dwc3_trace(trace_dwc3_ep0, "%s STARTTRANSFER failed",
+ dep->name);
return ret;
}
@@ -153,7 +155,8 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
if (dwc->ep0state == EP0_STATUS_PHASE)
__dwc3_ep0_do_control_status(dwc, dwc->eps[direction]);
else
- dev_dbg(dwc->dev, "too early for delayed status\n");
+ dwc3_trace(trace_dwc3_ep0,
+ "too early for delayed status");
return 0;
}
@@ -217,7 +220,8 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
spin_lock_irqsave(&dwc->lock, flags);
if (!dep->endpoint.desc) {
- dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n",
+ dwc3_trace(trace_dwc3_ep0,
+ "trying to queue request %p to disabled %s",
request, dep->name);
ret = -ESHUTDOWN;
goto out;
@@ -229,7 +233,8 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
goto out;
}
- dev_vdbg(dwc->dev, "queueing request %p to %s length %d, state '%s'\n",
+ dwc3_trace(trace_dwc3_ep0,
+ "queueing request %p to %s length %d state '%s'",
request, dep->name, request->length,
dwc3_ep0_state_string(dwc->ep0state));
@@ -485,12 +490,13 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
addr = le16_to_cpu(ctrl->wValue);
if (addr > 127) {
- dev_dbg(dwc->dev, "invalid device address %d\n", addr);
+ dwc3_trace(trace_dwc3_ep0, "invalid device address %d", addr);
return -EINVAL;
}
if (state == USB_STATE_CONFIGURED) {
- dev_dbg(dwc->dev, "trying to set address when configured\n");
+ dwc3_trace(trace_dwc3_ep0,
+ "trying to set address when configured");
return -EINVAL;
}
@@ -556,7 +562,7 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
dwc->resize_fifos = true;
- dev_dbg(dwc->dev, "resize fifos flag SET\n");
+ dwc3_trace(trace_dwc3_ep0, "resize FIFOs flag SET");
}
break;
@@ -680,35 +686,35 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
switch (ctrl->bRequest) {
case USB_REQ_GET_STATUS:
- dev_vdbg(dwc->dev, "USB_REQ_GET_STATUS\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_GET_STATUS\n");
ret = dwc3_ep0_handle_status(dwc, ctrl);
break;
case USB_REQ_CLEAR_FEATURE:
- dev_vdbg(dwc->dev, "USB_REQ_CLEAR_FEATURE\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_CLEAR_FEATURE\n");
ret = dwc3_ep0_handle_feature(dwc, ctrl, 0);
break;
case USB_REQ_SET_FEATURE:
- dev_vdbg(dwc->dev, "USB_REQ_SET_FEATURE\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_FEATURE\n");
ret = dwc3_ep0_handle_feature(dwc, ctrl, 1);
break;
case USB_REQ_SET_ADDRESS:
- dev_vdbg(dwc->dev, "USB_REQ_SET_ADDRESS\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ADDRESS\n");
ret = dwc3_ep0_set_address(dwc, ctrl);
break;
case USB_REQ_SET_CONFIGURATION:
- dev_vdbg(dwc->dev, "USB_REQ_SET_CONFIGURATION\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_CONFIGURATION\n");
ret = dwc3_ep0_set_config(dwc, ctrl);
break;
case USB_REQ_SET_SEL:
- dev_vdbg(dwc->dev, "USB_REQ_SET_SEL\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_SEL\n");
ret = dwc3_ep0_set_sel(dwc, ctrl);
break;
case USB_REQ_SET_ISOCH_DELAY:
- dev_vdbg(dwc->dev, "USB_REQ_SET_ISOCH_DELAY\n");
+ dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ISOCH_DELAY\n");
ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
break;
default:
- dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
+ dwc3_trace(trace_dwc3_ep0, "Forwarding to gadget driver\n");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
break;
}
@@ -726,6 +732,8 @@ static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
if (!dwc->gadget_driver)
goto out;
+ trace_dwc3_ctrl_req(ctrl);
+
len = le16_to_cpu(ctrl->wLength);
if (!len) {
dwc->three_stage_setup = false;
@@ -774,7 +782,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING) {
- dev_dbg(dwc->dev, "Setup Pending received\n");
+ dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
if (r)
dwc3_gadget_giveback(ep0, r, -ECONNRESET);
@@ -834,7 +842,7 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
ret = dwc3_gadget_set_test_mode(dwc, dwc->test_mode_nr);
if (ret < 0) {
- dev_dbg(dwc->dev, "Invalid Test #%d\n",
+ dwc3_trace(trace_dwc3_ep0, "Invalid Test #%d",
dwc->test_mode_nr);
dwc3_ep0_stall_and_restart(dwc);
return;
@@ -843,7 +851,7 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING)
- dev_dbg(dwc->dev, "Setup Pending received\n");
+ dwc3_trace(trace_dwc3_ep0, "Setup Pending received\n");
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
@@ -860,17 +868,17 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
switch (dwc->ep0state) {
case EP0_SETUP_PHASE:
- dev_vdbg(dwc->dev, "Inspecting Setup Bytes\n");
+ dwc3_trace(trace_dwc3_ep0, "Setup Phase");
dwc3_ep0_inspect_setup(dwc, event);
break;
case EP0_DATA_PHASE:
- dev_vdbg(dwc->dev, "Data Phase\n");
+ dwc3_trace(trace_dwc3_ep0, "Data Phase");
dwc3_ep0_complete_data(dwc, event);
break;
case EP0_STATUS_PHASE:
- dev_vdbg(dwc->dev, "Status Phase\n");
+ dwc3_trace(trace_dwc3_ep0, "Status Phase");
dwc3_ep0_complete_status(dwc, event);
break;
default:
@@ -946,7 +954,7 @@ static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)
static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
{
if (dwc->resize_fifos) {
- dev_dbg(dwc->dev, "starting to resize fifos\n");
+ dwc3_trace(trace_dwc3_ep0, "Resizing FIFOs");
dwc3_gadget_resize_tx_fifos(dwc);
dwc->resize_fifos = 0;
}
@@ -987,7 +995,7 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
switch (event->status) {
case DEPEVT_STATUS_CONTROL_DATA:
- dev_vdbg(dwc->dev, "Control Data\n");
+ dwc3_trace(trace_dwc3_ep0, "Control Data");
/*
* We already have a DATA transfer in the controller's cache,
@@ -1001,7 +1009,8 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
if (dwc->ep0_expect_in != event->endpoint_number) {
struct dwc3_ep *dep = dwc->eps[dwc->ep0_expect_in];
- dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");
+ dwc3_trace(trace_dwc3_ep0,
+ "Wrong direction for Data phase");
dwc3_ep0_end_control_data(dwc, dep);
dwc3_ep0_stall_and_restart(dwc);
return;
@@ -1013,13 +1022,13 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS)
return;
- dev_vdbg(dwc->dev, "Control Status\n");
+ dwc3_trace(trace_dwc3_ep0, "Control Status");
dwc->ep0state = EP0_STATUS_PHASE;
if (dwc->delayed_status) {
WARN_ON_ONCE(event->endpoint_number != 1);
- dev_vdbg(dwc->dev, "Mass Storage delayed status\n");
+ dwc3_trace(trace_dwc3_ep0, "Delayed Status");
return;
}
@@ -1032,7 +1041,7 @@ void dwc3_ep0_interrupt(struct dwc3 *dwc,
{
u8 epnum = event->endpoint_number;
- dev_dbg(dwc->dev, "%s while ep%d%s in state '%s'\n",
+ dwc3_trace(trace_dwc3_ep0, "%s while ep%d%s in state '%s'",
dwc3_ep_event_string(event->endpoint_event),
epnum >> 1, (epnum & 1) ? "in" : "out",
dwc3_ep0_state_string(dwc->ep0state));
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 490a6ca00733..3818b26bfc05 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -30,6 +30,7 @@
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include "debug.h"
#include "core.h"
#include "gadget.h"
#include "io.h"
@@ -266,107 +267,19 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n",
req, dep->name, req->request.actual,
req->request.length, status);
+ trace_dwc3_gadget_giveback(req);
spin_unlock(&dwc->lock);
- req->request.complete(&dep->endpoint, &req->request);
+ usb_gadget_giveback_request(&dep->endpoint, &req->request);
spin_lock(&dwc->lock);
}
-static const char *dwc3_gadget_ep_cmd_string(u8 cmd)
-{
- switch (cmd) {
- case DWC3_DEPCMD_DEPSTARTCFG:
- return "Start New Configuration";
- case DWC3_DEPCMD_ENDTRANSFER:
- return "End Transfer";
- case DWC3_DEPCMD_UPDATETRANSFER:
- return "Update Transfer";
- case DWC3_DEPCMD_STARTTRANSFER:
- return "Start Transfer";
- case DWC3_DEPCMD_CLEARSTALL:
- return "Clear Stall";
- case DWC3_DEPCMD_SETSTALL:
- return "Set Stall";
- case DWC3_DEPCMD_GETEPSTATE:
- return "Get Endpoint State";
- case DWC3_DEPCMD_SETTRANSFRESOURCE:
- return "Set Endpoint Transfer Resource";
- case DWC3_DEPCMD_SETEPCONFIG:
- return "Set Endpoint Configuration";
- default:
- return "UNKNOWN command";
- }
-}
-
-static const char *dwc3_gadget_generic_cmd_string(u8 cmd)
-{
- switch (cmd) {
- case DWC3_DGCMD_SET_LMP:
- return "Set LMP";
- case DWC3_DGCMD_SET_PERIODIC_PAR:
- return "Set Periodic Parameters";
- case DWC3_DGCMD_XMIT_FUNCTION:
- return "Transmit Function Wake Device Notification";
- case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
- return "Set Scratchpad Buffer Array Address Lo";
- case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
- return "Set Scratchpad Buffer Array Address Hi";
- case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
- return "Selected FIFO Flush";
- case DWC3_DGCMD_ALL_FIFO_FLUSH:
- return "All FIFO Flush";
- case DWC3_DGCMD_SET_ENDPOINT_NRDY:
- return "Set Endpoint NRDY";
- case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
- return "Run SoC Bus Loopback Test";
- default:
- return "UNKNOWN";
- }
-}
-
-static const char *dwc3_gadget_link_string(enum dwc3_link_state link_state)
-{
- switch (link_state) {
- case DWC3_LINK_STATE_U0:
- return "U0";
- case DWC3_LINK_STATE_U1:
- return "U1";
- case DWC3_LINK_STATE_U2:
- return "U2";
- case DWC3_LINK_STATE_U3:
- return "U3";
- case DWC3_LINK_STATE_SS_DIS:
- return "SS.Disabled";
- case DWC3_LINK_STATE_RX_DET:
- return "RX.Detect";
- case DWC3_LINK_STATE_SS_INACT:
- return "SS.Inactive";
- case DWC3_LINK_STATE_POLL:
- return "Polling";
- case DWC3_LINK_STATE_RECOV:
- return "Recovery";
- case DWC3_LINK_STATE_HRESET:
- return "Hot Reset";
- case DWC3_LINK_STATE_CMPLY:
- return "Compliance";
- case DWC3_LINK_STATE_LPBK:
- return "Loopback";
- case DWC3_LINK_STATE_RESET:
- return "Reset";
- case DWC3_LINK_STATE_RESUME:
- return "Resume";
- default:
- return "UNKNOWN link state\n";
- }
-}
-
-int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param)
+int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
{
u32 timeout = 500;
u32 reg;
- dev_vdbg(dwc->dev, "generic cmd '%s' [%d] param %08x\n",
- dwc3_gadget_generic_cmd_string(cmd), cmd, param);
+ trace_dwc3_gadget_generic_cmd(cmd, param);
dwc3_writel(dwc->regs, DWC3_DGCMDPAR, param);
dwc3_writel(dwc->regs, DWC3_DGCMD, cmd | DWC3_DGCMD_CMDACT);
@@ -397,10 +310,7 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
u32 timeout = 500;
u32 reg;
- dev_vdbg(dwc->dev, "%s: cmd '%s' [%d] params %08x %08x %08x\n",
- dep->name,
- dwc3_gadget_ep_cmd_string(cmd), cmd, params->param0,
- params->param1, params->param2);
+ trace_dwc3_gadget_ep_cmd(dep, cmd, params);
dwc3_writel(dwc->regs, DWC3_DEPCMDPAR0(ep), params->param0);
dwc3_writel(dwc->regs, DWC3_DEPCMDPAR1(ep), params->param1);
@@ -789,17 +699,16 @@ static struct usb_request *dwc3_gadget_ep_alloc_request(struct usb_ep *ep,
{
struct dwc3_request *req;
struct dwc3_ep *dep = to_dwc3_ep(ep);
- struct dwc3 *dwc = dep->dwc;
req = kzalloc(sizeof(*req), gfp_flags);
- if (!req) {
- dev_err(dwc->dev, "not enough memory\n");
+ if (!req)
return NULL;
- }
req->epnum = dep->number;
req->dep = dep;
+ trace_dwc3_alloc_request(req);
+
return &req->request;
}
@@ -808,6 +717,7 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep,
{
struct dwc3_request *req = to_dwc3_request(request);
+ trace_dwc3_free_request(req);
kfree(req);
}
@@ -889,6 +799,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
trb->ctrl |= DWC3_TRB_CTRL_SID_SOFN(req->request.stream_id);
trb->ctrl |= DWC3_TRB_CTRL_HWO;
+
+ trace_dwc3_prepare_trb(dep, trb);
}
/*
@@ -1235,6 +1147,7 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
dev_vdbg(dwc->dev, "queing request %p to %s length %d\n",
request, ep->name, request->length);
+ trace_dwc3_ep_queue(req);
ret = __dwc3_gadget_ep_queue(dep, req);
spin_unlock_irqrestore(&dwc->lock, flags);
@@ -1254,6 +1167,8 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep,
unsigned long flags;
int ret = 0;
+ trace_dwc3_ep_dequeue(req);
+
spin_lock_irqsave(&dwc->lock, flags);
list_for_each_entry(r, &dep->request_list, list) {
@@ -1744,11 +1659,8 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
u8 epnum = (i << 1) | (!!direction);
dep = kzalloc(sizeof(*dep), GFP_KERNEL);
- if (!dep) {
- dev_err(dwc->dev, "can't allocate endpoint %d\n",
- epnum);
+ if (!dep)
return -ENOMEM;
- }
dep->dwc = dwc;
dep->number = epnum;
@@ -1847,6 +1759,8 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep,
unsigned int s_pkt = 0;
unsigned int trb_status;
+ trace_dwc3_complete_trb(dep, trb);
+
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)
/*
* We continue despite the error. There is not much we
@@ -2021,9 +1935,6 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
if (!(dep->flags & DWC3_EP_ENABLED))
return;
- dev_vdbg(dwc->dev, "%s: %s\n", dep->name,
- dwc3_ep_event_string(event->endpoint_event));
-
if (epnum == 0 || epnum == 1) {
dwc3_ep0_interrupt(dwc, event);
return;
@@ -2210,8 +2121,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
{
int reg;
- dev_vdbg(dwc->dev, "%s\n", __func__);
-
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
reg &= ~DWC3_DCTL_INITU1ENA;
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
@@ -2230,8 +2139,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
{
u32 reg;
- dev_vdbg(dwc->dev, "%s\n", __func__);
-
/*
* WORKAROUND: DWC3 revisions <1.88a have an issue which
* would cause a missing Disconnect Event if there's a
@@ -2316,8 +2223,6 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
u32 reg;
u8 speed;
- dev_vdbg(dwc->dev, "%s\n", __func__);
-
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
speed = reg & DWC3_DSTS_CONNECTSPD;
dwc->speed = speed;
@@ -2415,8 +2320,6 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
static void dwc3_gadget_wakeup_interrupt(struct dwc3 *dwc)
{
- dev_vdbg(dwc->dev, "%s\n", __func__);
-
/*
* TODO take core out of low power mode when that's
* implemented.
@@ -2521,10 +2424,6 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
break;
}
- dev_vdbg(dwc->dev, "link change: %s [%d] -> %s [%d]\n",
- dwc3_gadget_link_string(dwc->link_state),
- dwc->link_state, dwc3_gadget_link_string(next), next);
-
dwc->link_state = next;
}
@@ -2601,6 +2500,8 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc,
static void dwc3_process_event_entry(struct dwc3 *dwc,
const union dwc3_event *event)
{
+ trace_dwc3_event(event->raw);
+
/* Endpoint IRQ, handle it and return early */
if (event->type.is_devspec == 0) {
/* depevt */
@@ -2754,7 +2655,6 @@ int dwc3_gadget_init(struct dwc3 *dwc)
dwc->setup_buf = kzalloc(DWC3_EP0_BOUNCE_SIZE, GFP_KERNEL);
if (!dwc->setup_buf) {
- dev_err(dwc->dev, "failed to allocate setup buffer\n");
ret = -ENOMEM;
goto err2;
}
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index a0ee75b68a80..178ad8982206 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -103,60 +103,4 @@ static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
return DWC3_DEPCMD_GET_RSC_IDX(res_id);
}
-/**
- * dwc3_gadget_event_string - returns event name
- * @event: the event code
- */
-static inline const char *dwc3_gadget_event_string(u8 event)
-{
- switch (event) {
- case DWC3_DEVICE_EVENT_DISCONNECT:
- return "Disconnect";
- case DWC3_DEVICE_EVENT_RESET:
- return "Reset";
- case DWC3_DEVICE_EVENT_CONNECT_DONE:
- return "Connection Done";
- case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
- return "Link Status Change";
- case DWC3_DEVICE_EVENT_WAKEUP:
- return "WakeUp";
- case DWC3_DEVICE_EVENT_EOPF:
- return "End-Of-Frame";
- case DWC3_DEVICE_EVENT_SOF:
- return "Start-Of-Frame";
- case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
- return "Erratic Error";
- case DWC3_DEVICE_EVENT_CMD_CMPL:
- return "Command Complete";
- case DWC3_DEVICE_EVENT_OVERFLOW:
- return "Overflow";
- }
-
- return "UNKNOWN";
-}
-
-/**
- * dwc3_ep_event_string - returns event name
- * @event: then event code
- */
-static inline const char *dwc3_ep_event_string(u8 event)
-{
- switch (event) {
- case DWC3_DEPEVT_XFERCOMPLETE:
- return "Transfer Complete";
- case DWC3_DEPEVT_XFERINPROGRESS:
- return "Transfer In-Progress";
- case DWC3_DEPEVT_XFERNOTREADY:
- return "Transfer Not Ready";
- case DWC3_DEPEVT_RXTXFIFOEVT:
- return "FIFO";
- case DWC3_DEPEVT_STREAMEVT:
- return "Stream";
- case DWC3_DEPEVT_EPCMDCMPLT:
- return "Endpoint Command Complete";
- }
-
- return "UNKNOWN";
-}
-
#endif /* __DRIVERS_USB_DWC3_GADGET_H */
diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index d94441c14d8c..6a79c8e66bbc 100644
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -20,27 +20,51 @@
#define __DRIVERS_USB_DWC3_IO_H
#include <linux/io.h>
-
+#include "trace.h"
+#include "debug.h"
#include "core.h"
static inline u32 dwc3_readl(void __iomem *base, u32 offset)
{
+ u32 offs = offset - DWC3_GLOBALS_REGS_START;
+ u32 value;
+
/*
* We requested the mem region starting from the Globals address
* space, see dwc3_probe in core.c.
* However, the offsets are given starting from xHCI address space.
*/
- return readl(base + (offset - DWC3_GLOBALS_REGS_START));
+ value = readl(base + offs);
+
+ /*
+ * When tracing we want to make it easy to find the correct address on
+ * documentation, so we revert it back to the proper addresses, the
+ * same way they are described on SNPS documentation
+ */
+ dwc3_trace(trace_dwc3_readl, "addr %p value %08x",
+ base - DWC3_GLOBALS_REGS_START + offset, value);
+
+ return value;
}
static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
{
+ u32 offs = offset - DWC3_GLOBALS_REGS_START;
+
/*
* We requested the mem region starting from the Globals address
* space, see dwc3_probe in core.c.
* However, the offsets are given starting from xHCI address space.
*/
- writel(value, base + (offset - DWC3_GLOBALS_REGS_START));
+ writel(value, base + offs);
+
+ /*
+ * When tracing we want to make it easy to find the correct address on
+ * documentation, so we revert it back to the proper addresses, the
+ * same way they are described on SNPS documentation
+ */
+ dwc3_trace(trace_dwc3_writel, "addr %p value %08x",
+ base - DWC3_GLOBALS_REGS_START + offset, value);
}
#endif /* __DRIVERS_USB_DWC3_IO_H */
diff --git a/drivers/usb/dwc3/trace.c b/drivers/usb/dwc3/trace.c
new file mode 100644
index 000000000000..6cd166412ad0
--- /dev/null
+++ b/drivers/usb/dwc3/trace.c
@@ -0,0 +1,19 @@
+/**
+ * trace.c - DesignWare USB3 DRD Controller Trace Support
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
new file mode 100644
index 000000000000..78aff1da089a
--- /dev/null
+++ b/drivers/usb/dwc3/trace.h
@@ -0,0 +1,220 @@
+/**
+ * trace.h - DesignWare USB3 DRD Controller Trace Support
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM dwc3
+
+#if !defined(__DWC3_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __DWC3_TRACE_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <asm/byteorder.h>
+#include "core.h"
+#include "debug.h"
+
+DECLARE_EVENT_CLASS(dwc3_log_msg,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf),
+ TP_STRUCT__entry(__dynamic_array(char, msg, DWC3_MSG_MAX)),
+ TP_fast_assign(
+ vsnprintf(__get_str(msg), DWC3_MSG_MAX, vaf->fmt, *vaf->va);
+ ),
+ TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(dwc3_log_msg, dwc3_readl,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(dwc3_log_msg, dwc3_writel,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(dwc3_log_msg, dwc3_ep0,
+ TP_PROTO(struct va_format *vaf),
+ TP_ARGS(vaf)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_event,
+ TP_PROTO(u32 event),
+ TP_ARGS(event),
+ TP_STRUCT__entry(
+ __field(u32, event)
+ ),
+ TP_fast_assign(
+ __entry->event = event;
+ ),
+ TP_printk("event %08x\n", __entry->event)
+);
+
+DEFINE_EVENT(dwc3_log_event, dwc3_event,
+ TP_PROTO(u32 event),
+ TP_ARGS(event)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_ctrl,
+ TP_PROTO(struct usb_ctrlrequest *ctrl),
+ TP_ARGS(ctrl),
+ TP_STRUCT__entry(
+ __field(struct usb_ctrlrequest *, ctrl)
+ ),
+ TP_fast_assign(
+ __entry->ctrl = ctrl;
+ ),
+ TP_printk("bRequestType %02x bRequest %02x wValue %04x wIndex %04x wLength %d",
+ __entry->ctrl->bRequestType, __entry->ctrl->bRequest,
+ le16_to_cpu(__entry->ctrl->wValue), le16_to_cpu(__entry->ctrl->wIndex),
+ le16_to_cpu(__entry->ctrl->wLength)
+ )
+);
+
+DEFINE_EVENT(dwc3_log_ctrl, dwc3_ctrl_req,
+ TP_PROTO(struct usb_ctrlrequest *ctrl),
+ TP_ARGS(ctrl)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_request,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req),
+ TP_STRUCT__entry(
+ __field(struct dwc3_request *, req)
+ ),
+ TP_fast_assign(
+ __entry->req = req;
+ ),
+ TP_printk("%s: req %p length %u/%u ==> %d",
+ __entry->req->dep->name, __entry->req,
+ __entry->req->request.actual, __entry->req->request.length,
+ __entry->req->request.status
+ )
+);
+
+DEFINE_EVENT(dwc3_log_request, dwc3_alloc_request,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req)
+);
+
+DEFINE_EVENT(dwc3_log_request, dwc3_free_request,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req)
+);
+
+DEFINE_EVENT(dwc3_log_request, dwc3_ep_queue,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req)
+);
+
+DEFINE_EVENT(dwc3_log_request, dwc3_ep_dequeue,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req)
+);
+
+DEFINE_EVENT(dwc3_log_request, dwc3_gadget_giveback,
+ TP_PROTO(struct dwc3_request *req),
+ TP_ARGS(req)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_generic_cmd,
+ TP_PROTO(unsigned int cmd, u32 param),
+ TP_ARGS(cmd, param),
+ TP_STRUCT__entry(
+ __field(unsigned int, cmd)
+ __field(u32, param)
+ ),
+ TP_fast_assign(
+ __entry->cmd = cmd;
+ __entry->param = param;
+ ),
+ TP_printk("cmd '%s' [%d] param %08x\n",
+ dwc3_gadget_generic_cmd_string(__entry->cmd),
+ __entry->cmd, __entry->param
+ )
+);
+
+DEFINE_EVENT(dwc3_log_generic_cmd, dwc3_gadget_generic_cmd,
+ TP_PROTO(unsigned int cmd, u32 param),
+ TP_ARGS(cmd, param)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
+ TP_PROTO(struct dwc3_ep *dep, unsigned int cmd,
+ struct dwc3_gadget_ep_cmd_params *params),
+ TP_ARGS(dep, cmd, params),
+ TP_STRUCT__entry(
+ __field(struct dwc3_ep *, dep)
+ __field(unsigned int, cmd)
+ __field(struct dwc3_gadget_ep_cmd_params *, params)
+ ),
+ TP_fast_assign(
+ __entry->dep = dep;
+ __entry->cmd = cmd;
+ __entry->params = params;
+ ),
+ TP_printk("%s: cmd '%s' [%d] params %08x %08x %08x\n",
+ __entry->dep->name, dwc3_gadget_ep_cmd_string(__entry->cmd),
+ __entry->cmd, __entry->params->param0,
+ __entry->params->param1, __entry->params->param2
+ )
+);
+
+DEFINE_EVENT(dwc3_log_gadget_ep_cmd, dwc3_gadget_ep_cmd,
+ TP_PROTO(struct dwc3_ep *dep, unsigned int cmd,
+ struct dwc3_gadget_ep_cmd_params *params),
+ TP_ARGS(dep, cmd, params)
+);
+
+DECLARE_EVENT_CLASS(dwc3_log_trb,
+ TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
+ TP_ARGS(dep, trb),
+ TP_STRUCT__entry(
+ __field(struct dwc3_ep *, dep)
+ __field(struct dwc3_trb *, trb)
+ ),
+ TP_fast_assign(
+ __entry->dep = dep;
+ __entry->trb = trb;
+ ),
+ TP_printk("%s: trb %p bph %08x bpl %08x size %08x ctrl %08x\n",
+ __entry->dep->name, __entry->trb, __entry->trb->bph,
+ __entry->trb->bpl, __entry->trb->size, __entry->trb->ctrl
+ )
+);
+
+DEFINE_EVENT(dwc3_log_trb, dwc3_prepare_trb,
+ TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
+ TP_ARGS(dep, trb)
+);
+
+DEFINE_EVENT(dwc3_log_trb, dwc3_complete_trb,
+ TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
+ TP_ARGS(dep, trb)
+);
+
+#endif /* __DWC3_TRACE_H */
+
+/* this part has to be here */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.