diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2019-03-21 10:53:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-26 16:40:14 +0900 |
| commit | 83374e035b6286731c5aa617844c7b724294c2a7 (patch) | |
| tree | 212fe872a4028092f183a1777089f6eee84fff3a /drivers/usb/mtu3/mtu3_qmu.c | |
| parent | 4aab6ad24a101b9fa3779acc27eefd8a730a6f63 (diff) | |
usb: mtu3: add tracepoints to help debug
This patch implements a few initial tracepoints for the
mtu3 driver. More traces can be added as necessary in order
to ease the task of debugging.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_qmu.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_qmu.c | 7 |
1 files changed, 7 insertions, 0 deletions
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); |