diff options
| -rw-r--r-- | drivers/usb/mtu3/Makefile | 7 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_core.c | 5 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_debug.h | 8 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_dr.c | 1 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget.c | 14 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget_ep0.c | 4 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_qmu.c | 7 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_trace.c | 23 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_trace.h | 279 |
9 files changed, 347 insertions, 1 deletions
diff --git a/drivers/usb/mtu3/Makefile b/drivers/usb/mtu3/Makefile index 7c1826bbcebb..3bf8cbcc1add 100644 --- a/drivers/usb/mtu3/Makefile +++ b/drivers/usb/mtu3/Makefile @@ -2,10 +2,17 @@ ccflags-$(CONFIG_USB_MTU3_DEBUG) += -DDEBUG +# define_trace.h needs to know how to find our header +CFLAGS_mtu3_trace.o := -I$(src) + obj-$(CONFIG_USB_MTU3) += mtu3.o mtu3-y := mtu3_plat.o +ifneq ($(CONFIG_TRACING),) + mtu3-y += mtu3_trace.o +endif + ifneq ($(filter y,$(CONFIG_USB_MTU3_HOST) $(CONFIG_USB_MTU3_DUAL_ROLE)),) mtu3-y += mtu3_host.o endif diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index f106fe81ae10..f8bd1d57e795 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -17,6 +17,7 @@ #include "mtu3.h" #include "mtu3_debug.h" +#include "mtu3_trace.h" static int ep_fifo_alloc(struct mtu3_ep *mep, u32 seg_size) { @@ -656,6 +657,8 @@ static irqreturn_t mtu3_link_isr(struct mtu3 *mtu) break; } dev_dbg(mtu->dev, "%s: %s\n", __func__, usb_speed_string(udev_speed)); + mtu3_dbg_trace(mtu->dev, "link speed %s", + usb_speed_string(udev_speed)); mtu->g.speed = udev_speed; mtu->g.ep0->maxpacket = maxpkt; @@ -678,6 +681,7 @@ static irqreturn_t mtu3_u3_ltssm_isr(struct mtu3 *mtu) ltssm &= mtu3_readl(mbase, U3D_LTSSM_INTR_ENABLE); mtu3_writel(mbase, U3D_LTSSM_INTR, ltssm); /* W1C */ dev_dbg(mtu->dev, "=== LTSSM[%x] ===\n", ltssm); + trace_mtu3_u3_ltssm_isr(ltssm); if (ltssm & (HOT_RST_INTR | WARM_RST_INTR)) mtu3_gadget_reset(mtu); @@ -708,6 +712,7 @@ static irqreturn_t mtu3_u2_common_isr(struct mtu3 *mtu) u2comm &= mtu3_readl(mbase, U3D_COMMON_USB_INTR_ENABLE); mtu3_writel(mbase, U3D_COMMON_USB_INTR, u2comm); /* W1C */ dev_dbg(mtu->dev, "=== U2COMM[%x] ===\n", u2comm); + trace_mtu3_u2_common_isr(u2comm); if (u2comm & SUSPEND_INTR) mtu3_gadget_suspend(mtu); diff --git a/drivers/usb/mtu3/mtu3_debug.h b/drivers/usb/mtu3/mtu3_debug.h index d97a48c73469..e96a69234d05 100644 --- a/drivers/usb/mtu3/mtu3_debug.h +++ b/drivers/usb/mtu3/mtu3_debug.h @@ -39,4 +39,12 @@ static inline void ssusb_debugfs_remove_root(struct ssusb_mtk *ssusb) {} #endif /* CONFIG_DEBUG_FS */ +#if IS_ENABLED(CONFIG_TRACING) +void mtu3_dbg_trace(struct device *dev, const char *fmt, ...); + +#else +static inline void mtu3_dbg_trace(struct device *dev, const char *fmt, ...) {} + +#endif /* CONFIG_TRACING */ + #endif /* __MTU3_DEBUG_H__ */ diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index ff2956272e15..82913120622b 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -141,6 +141,7 @@ static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, struct mtu3 *mtu = ssusb->u3d; dev_dbg(ssusb->dev, "mailbox state(%d)\n", status); + mtu3_dbg_trace(ssusb->dev, "mailbox %d", status); switch (status) { case MTU3_ID_GROUND: diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index fe798b94a357..f93732e53fd8 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -8,6 +8,7 @@ */ #include "mtu3.h" +#include "mtu3_trace.h" void mtu3_req_complete(struct mtu3_ep *mep, struct usb_request *req, int status) @@ -25,6 +26,8 @@ __acquires(mep->mtu->lock) mtu = mreq->mtu; mep->busy = 1; + + trace_mtu3_req_complete(mreq); spin_unlock(&mtu->lock); /* ep0 makes use of PIO, needn't unmap it */ @@ -201,6 +204,7 @@ error: spin_unlock_irqrestore(&mtu->lock, flags); dev_dbg(mtu->dev, "%s active_ep=%d\n", __func__, mtu->active_ep); + trace_mtu3_gadget_ep_enable(mep); return ret; } @@ -212,6 +216,7 @@ static int mtu3_gadget_ep_disable(struct usb_ep *ep) unsigned long flags; dev_dbg(mtu->dev, "%s %s\n", __func__, mep->name); + trace_mtu3_gadget_ep_disable(mep); if (!(mep->flags & MTU3_EP_ENABLED)) { dev_warn(mtu->dev, "%s is already disabled\n", mep->name); @@ -242,13 +247,17 @@ struct usb_request *mtu3_alloc_request(struct usb_ep *ep, gfp_t gfp_flags) mreq->request.dma = DMA_ADDR_INVALID; mreq->epnum = mep->epnum; mreq->mep = mep; + trace_mtu3_alloc_request(mreq); return &mreq->request; } void mtu3_free_request(struct usb_ep *ep, struct usb_request *req) { - kfree(to_mtu3_request(req)); + struct mtu3_request *mreq = to_mtu3_request(req); + + trace_mtu3_free_request(mreq); + kfree(mreq); } static int mtu3_gadget_queue(struct usb_ep *ep, @@ -316,6 +325,7 @@ static int mtu3_gadget_queue(struct usb_ep *ep, error: spin_unlock_irqrestore(&mtu->lock, flags); + trace_mtu3_gadget_queue(mreq); return ret; } @@ -333,6 +343,7 @@ static int mtu3_gadget_dequeue(struct usb_ep *ep, struct usb_request *req) return -EINVAL; dev_dbg(mtu->dev, "%s : req=%p\n", __func__, req); + trace_mtu3_gadget_dequeue(mreq); spin_lock_irqsave(&mtu->lock, flags); @@ -403,6 +414,7 @@ static int mtu3_gadget_ep_set_halt(struct usb_ep *ep, int value) done: spin_unlock_irqrestore(&mtu->lock, flags); + trace_mtu3_gadget_ep_set_halt(mep); return ret; } diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c index 7cb7ac980446..4da216c99726 100644 --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c @@ -11,6 +11,8 @@ #include <linux/usb/composite.h> #include "mtu3.h" +#include "mtu3_debug.h" +#include "mtu3_trace.h" /* ep0 is always mtu3->in_eps[0] */ #define next_ep0_request(mtu) next_request((mtu)->ep0) @@ -634,6 +636,7 @@ __acquires(mtu->lock) int handled = 0; ep0_read_setup(mtu, &setup); + trace_mtu3_handle_setup(&setup); if ((setup.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) handled = handle_standard_request(mtu, &setup); @@ -710,6 +713,7 @@ irqreturn_t mtu3_ep0_isr(struct mtu3 *mtu) ret = IRQ_HANDLED; } dev_dbg(mtu->dev, "ep0_state: %s\n", decode_ep0_state(mtu)); + mtu3_dbg_trace(mtu->dev, "ep0_state %s", decode_ep0_state(mtu)); switch (mtu->ep0_state) { case MU3D_EP0_STATE_TX: diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c index 9f017aa8fbeb..3f414f91b589 100644 --- a/drivers/usb/mtu3/mtu3_qmu.c +++ b/drivers/usb/mtu3/mtu3_qmu.c @@ -22,6 +22,7 @@ #include <linux/iopoll.h> #include "mtu3.h" +#include "mtu3_trace.h" #define QMU_CHECKSUM_LEN 16 @@ -275,6 +276,7 @@ static int mtu3_prepare_tx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq) gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO); mreq->gpd = gpd; + trace_mtu3_prepare_gpd(mep, gpd); return 0; } @@ -307,6 +309,7 @@ static int mtu3_prepare_rx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq) gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO); mreq->gpd = gpd; + trace_mtu3_prepare_gpd(mep, gpd); return 0; } @@ -431,6 +434,7 @@ static void qmu_tx_zlp_error_handler(struct mtu3 *mtu, u8 epnum) } dev_dbg(mtu->dev, "%s send ZLP for req=%p\n", __func__, mreq); + trace_mtu3_zlp_exp_gpd(mep, gpd_current); mtu3_clrbits(mbase, MU3D_EP_TXCR0(mep->epnum), TX_DMAREQEN); @@ -486,6 +490,7 @@ static void qmu_done_tx(struct mtu3 *mtu, u8 epnum) request = &mreq->request; request->actual = GPD_DATA_LEN(mtu, le32_to_cpu(gpd->dw3_info)); + trace_mtu3_complete_gpd(mep, gpd); mtu3_req_complete(mep, request, 0); gpd = advance_deq_gpd(ring); @@ -524,6 +529,7 @@ static void qmu_done_rx(struct mtu3 *mtu, u8 epnum) req = &mreq->request; req->actual = GPD_DATA_LEN(mtu, le32_to_cpu(gpd->dw3_info)); + trace_mtu3_complete_gpd(mep, gpd); mtu3_req_complete(mep, req, 0); gpd = advance_deq_gpd(ring); @@ -601,6 +607,7 @@ irqreturn_t mtu3_qmu_isr(struct mtu3 *mtu) dev_dbg(mtu->dev, "=== QMUdone[tx=%x, rx=%x] QMUexp[%x] ===\n", (qmu_done_status & 0xFFFF), qmu_done_status >> 16, qmu_status); + trace_mtu3_qmu_isr(qmu_done_status, qmu_status); if (qmu_done_status) qmu_done_isr(mtu, qmu_done_status); diff --git a/drivers/usb/mtu3/mtu3_trace.c b/drivers/usb/mtu3/mtu3_trace.c new file mode 100644 index 000000000000..4f5e7857ec31 --- /dev/null +++ b/drivers/usb/mtu3/mtu3_trace.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * mtu3_trace.c - trace support + * + * Copyright (C) 2019 MediaTek Inc. + * + * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> + */ + +#define CREATE_TRACE_POINTS +#include "mtu3_trace.h" + +void mtu3_dbg_trace(struct device *dev, const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + trace_mtu3_log(dev, &vaf); + va_end(args); +} diff --git a/drivers/usb/mtu3/mtu3_trace.h b/drivers/usb/mtu3/mtu3_trace.h new file mode 100644 index 000000000000..050e30f0fbd4 --- /dev/null +++ b/drivers/usb/mtu3/mtu3_trace.h @@ -0,0 +1,279 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * mtu3_trace.h - trace support + * + * Copyright (C) 2019 MediaTek Inc. + * + * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mtu3 + +#if !defined(__MTU3_TRACE_H__) || defined(TRACE_HEADER_MULTI_READ) +#define __MTU3_TRACE_H__ + +#include <linux/types.h> +#include <linux/tracepoint.h> + +#include "mtu3.h" + +#define MTU3_MSG_MAX 256 + +TRACE_EVENT(mtu3_log, + TP_PROTO(struct device *dev, struct va_format *vaf), + TP_ARGS(dev, vaf), + TP_STRUCT__entry( + __string(name, dev_name(dev)) + __dynamic_array(char, msg, MTU3_MSG_MAX) + ), + TP_fast_assign( + __assign_str(name, dev_name(dev)); + vsnprintf(__get_str(msg), MTU3_MSG_MAX, vaf->fmt, *vaf->va); + ), + TP_printk("%s: %s", __get_str(name), __get_str(msg)) +); + +TRACE_EVENT(mtu3_u3_ltssm_isr, + TP_PROTO(u32 intr), + TP_ARGS(intr), + TP_STRUCT__entry( + __field(u32, intr) + ), + TP_fast_assign( + __entry->intr = intr; + ), + TP_printk("(%08x) %s %s %s %s %s %s", __entry->intr, + __entry->intr & HOT_RST_INTR ? "HOT_RST" : "", + __entry->intr & WARM_RST_INTR ? "WARM_RST" : "", + __entry->intr & ENTER_U3_INTR ? "ENT_U3" : "", + __entry->intr & EXIT_U3_INTR ? "EXIT_U3" : "", + __entry->intr & VBUS_RISE_INTR ? "VBUS_RISE" : "", + __entry->intr & VBUS_FALL_INTR ? "VBUS_FALL" : "" + ) +); + +TRACE_EVENT(mtu3_u2_common_isr, + TP_PROTO(u32 intr), + TP_ARGS(intr), + TP_STRUCT__entry( + __field(u32, intr) + ), + TP_fast_assign( + __entry->intr = intr; + ), + TP_printk("(%08x) %s %s %s", __entry->intr, + __entry->intr & SUSPEND_INTR ? "SUSPEND" : "", + __entry->intr & RESUME_INTR ? "RESUME" : "", + __entry->intr & RESET_INTR ? "RESET" : "" + ) +); + +TRACE_EVENT(mtu3_qmu_isr, + TP_PROTO(u32 done_intr, u32 exp_intr), + TP_ARGS(done_intr, exp_intr), + TP_STRUCT__entry( + __field(u32, done_intr) + __field(u32, exp_intr) + ), + TP_fast_assign( + __entry->done_intr = done_intr; + __entry->exp_intr = exp_intr; + ), + TP_printk("done (tx %04x, rx %04x), exp (%08x)", + __entry->done_intr & 0xffff, + __entry->done_intr >> 16, + __entry->exp_intr + ) +); + +DECLARE_EVENT_CLASS(mtu3_log_setup, + TP_PROTO(struct usb_ctrlrequest *setup), + TP_ARGS(setup), + TP_STRUCT__entry( + __field(__u8, bRequestType) + __field(__u8, bRequest) + __field(__u16, wValue) + __field(__u16, wIndex) + __field(__u16, wLength) + ), + TP_fast_assign( + __entry->bRequestType = setup->bRequestType; + __entry->bRequest = setup->bRequest; + __entry->wValue = le16_to_cpu(setup->wValue); + __entry->wIndex = le16_to_cpu(setup->wIndex); + __entry->wLength = le16_to_cpu(setup->wLength); + ), + TP_printk("setup - %02x %02x %04x %04x %04x", + __entry->bRequestType, __entry->bRequest, + __entry->wValue, __entry->wIndex, __entry->wLength + ) +); + +DEFINE_EVENT(mtu3_log_setup, mtu3_handle_setup, + TP_PROTO(struct usb_ctrlrequest *setup), + TP_ARGS(setup) +); + +DECLARE_EVENT_CLASS(mtu3_log_request, + TP_PROTO(struct mtu3_request *mreq), + TP_ARGS(mreq), + TP_STRUCT__entry( + __string(name, mreq->mep->name) + __field(struct mtu3_request *, mreq) + __field(struct qmu_gpd *, gpd) + __field(unsigned int, actual) + __field(unsigned int, length) + __field(int, status) + __field(int, zero) + __field(int, no_interrupt) + ), + TP_fast_assign( + __assign_str(name, mreq->mep->name); + __entry->mreq = mreq; + __entry->gpd = mreq->gpd; + __entry->actual = mreq->request.actual; + __entry->length = mreq->request.length; + __entry->status = mreq->request.status; + __entry->zero = mreq->request.zero; + __entry->no_interrupt = mreq->request.no_interrupt; + ), + TP_printk("%s: req %p gpd %p len %u/%u %s%s --> %d", + __get_str(name), __entry->mreq, __entry->gpd, + __entry->actual, __entry->length, + __entry->zero ? "Z" : "z", + __entry->no_interrupt ? "i" : "I", + __entry->status + ) +); + +DEFINE_EVENT(mtu3_log_request, mtu3_alloc_request, + TP_PROTO(struct mtu3_request *req), + TP_ARGS(req) +); + +DEFINE_EVENT(mtu3_log_request, mtu3_free_request, + TP_PROTO(struct mtu3_request *req), + TP_ARGS(req) +); + +DEFINE_EVENT(mtu3_log_request, mtu3_gadget_queue, + TP_PROTO(struct mtu3_request *req), + TP_ARGS(req) +); + +DEFINE_EVENT(mtu3_log_request, mtu3_gadget_dequeue, + TP_PROTO(struct mtu3_request *req), + TP_ARGS(req) +); + +DEFINE_EVENT(mtu3_log_request, mtu3_req_complete, + TP_PROTO(struct mtu3_request *req), + TP_ARGS(req) +); + +DECLARE_EVENT_CLASS(mtu3_log_gpd, + TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd), + TP_ARGS(mep, gpd), + TP_STRUCT__entry( + __string(name, mep->name) + __field(struct qmu_gpd *, gpd) + __field(u32, dw0) + __field(u32, dw1) + __field(u32, dw2) + __field(u32, dw3) + ), + TP_fast_assign( + __assign_str(name, mep->name); + __entry->gpd = gpd; + __entry->dw0 = le32_to_cpu(gpd->dw0_info); + __entry->dw1 = le32_to_cpu(gpd->next_gpd); + __entry->dw2 = le32_to_cpu(gpd->buffer); + __entry->dw3 = le32_to_cpu(gpd->dw3_info); + ), + TP_printk("%s: gpd %p - %08x %08x %08x %08x", + __get_str(name), __entry->gpd, + __entry->dw0, __entry->dw1, + __entry->dw2, __entry->dw3 + ) +); + +DEFINE_EVENT(mtu3_log_gpd, mtu3_prepare_gpd, + TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd), + TP_ARGS(mep, gpd) +); + +DEFINE_EVENT(mtu3_log_gpd, mtu3_complete_gpd, + TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd), + TP_ARGS(mep, gpd) +); + +DEFINE_EVENT(mtu3_log_gpd, mtu3_zlp_exp_gpd, + TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd), + TP_ARGS(mep, gpd) +); + +DECLARE_EVENT_CLASS(mtu3_log_ep, + TP_PROTO(struct mtu3_ep *mep), + TP_ARGS(mep), + TP_STRUCT__entry( + __string(name, mep->name) + __field(unsigned int, type) + __field(unsigned int, slot) + __field(unsigned int, maxp) + __field(unsigned int, mult) + __field(unsigned int, maxburst) + __field(unsigned int, flags) + __field(unsigned int, direction) + __field(struct mtu3_gpd_ring *, gpd_ring) + ), + TP_fast_assign( + __assign_str(name, mep->name); + __entry->type = mep->type; + __entry->slot = mep->slot; + __entry->maxp = mep->ep.maxpacket; + __entry->mult = mep->ep.mult; + __entry->maxburst = mep->ep.maxburst; + __entry->flags = mep->flags; + __entry->direction = mep->is_in; + __entry->gpd_ring = &mep->gpd_ring; + ), + TP_printk("%s: type %d maxp %d slot %d mult %d burst %d ring %p/%pad flags %c:%c%c%c:%c", + __get_str(name), __entry->type, + __entry->maxp, __entry->slot, + __entry->mult, __entry->maxburst, + __entry->gpd_ring, &__entry->gpd_ring->dma, + __entry->flags & MTU3_EP_ENABLED ? 'E' : 'e', + __entry->flags & MTU3_EP_STALL ? 'S' : 's', + __entry->flags & MTU3_EP_WEDGE ? 'W' : 'w', + __entry->flags & MTU3_EP_BUSY ? 'B' : 'b', + __entry->direction ? '<' : '>' + ) +); + +DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_enable, + TP_PROTO(struct mtu3_ep *mep), + TP_ARGS(mep) +); + +DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_disable, + TP_PROTO(struct mtu3_ep *mep), + TP_ARGS(mep) +); + +DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_set_halt, + TP_PROTO(struct mtu3_ep *mep), + TP_ARGS(mep) +); + +#endif /* __MTU3_TRACE_H__ */ + +/* this part has to be here */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE mtu3_trace + +#include <trace/define_trace.h> |