Author: hselasky
Date: Tue May 20 15:47:37 2014
New Revision: 266471
URL: http://svnweb.freebsd.org/changeset/base/266471
Log:
- The DELAY() should not be used in USB drivers.
- The usb_pause_mtx() function takes ticks and not milliseconds as last
argument.
MFC after: 3 days
Modified:
head/sys/dev/usb/wlan/if_rsu.c
Modified: head/sys/dev/usb/wlan/if_rsu.c
==============================================================================
--- head/sys/dev/usb/wlan/if_rsu.c Tue May 20 15:03:23 2014
(r266470)
+++ head/sys/dev/usb/wlan/if_rsu.c Tue May 20 15:47:37 2014
(r266471)
@@ -195,6 +195,7 @@ static void rsu_start_locked(struct ifne
static int rsu_ioctl(struct ifnet *, u_long, caddr_t);
static void rsu_stop(struct ifnet *, int);
static void rsu_stop_locked(struct ifnet *, int);
+static void rsu_ms_delay(struct rsu_softc *);
static device_method_t rsu_methods[] = {
DEVMETHOD(device_probe, rsu_match),
@@ -756,11 +757,11 @@ rsu_fw_iocmd(struct rsu_softc *sc, uint3
int ntries;
rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd);
- DELAY(100);
+ rsu_ms_delay(sc);
for (ntries = 0; ntries < 50; ntries++) {
if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0)
return (0);
- DELAY(10);
+ rsu_ms_delay(sc);
}
return (ETIMEDOUT);
}
@@ -780,7 +781,7 @@ rsu_efuse_read_1(struct rsu_softc *sc, u
reg = rsu_read_4(sc, R92S_EFUSE_CTRL);
if (reg & R92S_EFUSE_CTRL_VALID)
return (MS(reg, R92S_EFUSE_CTRL_DATA));
- DELAY(5);
+ rsu_ms_delay(sc);
}
device_printf(sc->sc_dev,
"could not read efuse byte at address 0x%x\n", addr);
@@ -804,7 +805,7 @@ rsu_read_rom(struct rsu_softc *sc)
/* Turn on 2.5V to prevent eFuse leakage. */
reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3);
rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80);
- DELAY(1000);
+ rsu_ms_delay(sc);
rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80);
/* Read full ROM image. */
@@ -1942,7 +1943,7 @@ rsu_power_on_bcut(struct rsu_softc *sc)
}
rsu_write_1(sc, R92S_SYS_FUNC_EN + 1,
rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c);
- DELAY(1000);
+ rsu_ms_delay(sc);
rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53);
rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57);
@@ -1975,11 +1976,11 @@ rsu_power_on_bcut(struct rsu_softc *sc)
/* Enable AFE PLL macro block. */
reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL);
rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11);
- DELAY(500);
+ rsu_ms_delay(sc);
rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51);
- DELAY(500);
+ rsu_ms_delay(sc);
rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11);
- DELAY(500);
+ rsu_ms_delay(sc);
/* Attach AFE PLL to MACTOP/BB. */
rsu_write_1(sc, R92S_SYS_ISO_CTRL,
@@ -2026,14 +2027,14 @@ rsu_power_on_bcut(struct rsu_softc *sc)
if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) ==
(R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT))
break;
- DELAY(5);
+ rsu_ms_delay(sc);
}
if (ntries == 20) {
DPRINTF("TxDMA is not ready\n");
/* Reset TxDMA. */
reg = rsu_read_1(sc, R92S_CR);
rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN);
- DELAY(2);
+ rsu_ms_delay(sc);
rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN);
}
}
@@ -2220,7 +2221,7 @@ rsu_load_firmware(struct rsu_softc *sc)
for (ntries = 0; ntries < 100; ntries++) {
if (rsu_read_2(sc, R92S_TCR) & R92S_TCR_IMEM_RDY)
break;
- DELAY(1000);
+ rsu_ms_delay(sc);
}
if (ntries == 100) {
device_printf(sc->sc_dev,
@@ -2252,7 +2253,7 @@ rsu_load_firmware(struct rsu_softc *sc)
for (ntries = 0; ntries < 100; ntries++) {
if (rsu_read_2(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE)
break;
- DELAY(1000);
+ rsu_ms_delay(sc);
}
if (ntries == 100) {
device_printf(sc->sc_dev, "timeout waiting for %s transfer\n",
@@ -2264,7 +2265,7 @@ rsu_load_firmware(struct rsu_softc *sc)
for (ntries = 0; ntries < 60; ntries++) {
if (!(rsu_read_2(sc, R92S_TCR) & R92S_TCR_FWRDY))
break;
- DELAY(1000);
+ rsu_ms_delay(sc);
}
if (ntries == 60) {
device_printf(sc->sc_dev,
@@ -2385,8 +2386,8 @@ rsu_init_locked(struct rsu_softc *sc)
rsu_write_region_1(sc, R92S_MACID, IF_LLADDR(ifp),
IEEE80211_ADDR_LEN);
- /* NB: it really takes that long for firmware to boot. */
- usb_pause_mtx(&sc->sc_mtx, 1500);
+ /* It really takes 1.5 seconds for the firmware to boot: */
+ usb_pause_mtx(&sc->sc_mtx, (3 * hz) / 2);
DPRINTF("setting MAC address to %s\n", ether_sprintf(IF_LLADDR(ifp)));
error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
@@ -2469,3 +2470,8 @@ rsu_stop_locked(struct ifnet *ifp, int d
usbd_transfer_stop(sc->sc_xfer[i]);
}
+static void
+rsu_ms_delay(struct rsu_softc *sc)
+{
+ usb_pause_mtx(&sc->sc_mtx, hz / 1000);
+}
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