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if_dwc: Add dwc_stop_dma and use it in dwc_stop_locked

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No functional changes intended
This commit is contained in:
manu 2020-11-20 11:29:00 +00:00
parent e919b12faf
commit 5c93c1cfe6
1 changed files with 25 additions and 16 deletions
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41
sys/dev/dwc/if_dwc.c
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@ -214,6 +214,7 @@ static void dwc_setup_rxfilter(struct dwc_softc *sc);
static void dwc_setup_core(struct dwc_softc *sc);
static void dwc_enable_mac(struct dwc_softc *sc, bool enable);
static void dwc_init_dma(struct dwc_softc *sc);
static void dwc_stop_dma(struct dwc_softc *sc);
static inline uint32_t
next_rxidx(struct dwc_softc *sc, uint32_t curidx)
@ -359,7 +360,6 @@ static void
dwc_stop_locked(struct dwc_softc *sc)
{
struct ifnet *ifp;
uint32_t reg;
DWC_ASSERT_LOCKED(sc);
@ -370,22 +370,8 @@ dwc_stop_locked(struct dwc_softc *sc)
callout_stop(&sc->dwc_callout);
/* Stop DMA TX */
reg = READ4(sc, OPERATION_MODE);
reg &= ~(MODE_ST);
WRITE4(sc, OPERATION_MODE, reg);
/* Flush TX */
reg = READ4(sc, OPERATION_MODE);
reg |= (MODE_FTF);
WRITE4(sc, OPERATION_MODE, reg);
dwc_stop_dma(sc);
dwc_enable_mac(sc, false);
/* Stop DMA RX */
reg = READ4(sc, OPERATION_MODE);
reg &= ~(MODE_SR);
WRITE4(sc, OPERATION_MODE, reg);
}
static void dwc_clear_stats(struct dwc_softc *sc)
@ -819,6 +805,29 @@ dwc_init_dma(struct dwc_softc *sc)
WRITE4(sc, OPERATION_MODE, reg);
}
static void
dwc_stop_dma(struct dwc_softc *sc)
{
uint32_t reg;
DWC_ASSERT_LOCKED(sc);
/* Stop DMA TX */
reg = READ4(sc, OPERATION_MODE);
reg &= ~(MODE_ST);
WRITE4(sc, OPERATION_MODE, reg);
/* Flush TX */
reg = READ4(sc, OPERATION_MODE);
reg |= (MODE_FTF);
WRITE4(sc, OPERATION_MODE, reg);
/* Stop DMA RX */
reg = READ4(sc, OPERATION_MODE);
reg &= ~(MODE_SR);
WRITE4(sc, OPERATION_MODE, reg);
}
static int
dwc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{