Module Name: src
Committed By: jmcneill
Date: Sun Jul 16 17:12:18 UTC 2017
Modified Files:
src/sys/arch/arm/sunxi: sunxi_mmc.c
Log Message:
Add SMC_CAPS_POLLING support.
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/arm/sunxi/sunxi_mmc.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/sunxi/sunxi_mmc.c
diff -u src/sys/arch/arm/sunxi/sunxi_mmc.c:1.1 src/sys/arch/arm/sunxi/sunxi_mmc.c:1.2
--- src/sys/arch/arm/sunxi/sunxi_mmc.c:1.1 Thu Jun 29 09:26:06 2017
+++ src/sys/arch/arm/sunxi/sunxi_mmc.c Sun Jul 16 17:12:18 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_mmc.c,v 1.1 2017/06/29 09:26:06 jmcneill Exp $ */
+/* $NetBSD: sunxi_mmc.c,v 1.2 2017/07/16 17:12:18 jmcneill Exp $ */
/*-
* Copyright (c) 2014-2017 Jared McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.1 2017/06/29 09:26:06 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.2 2017/07/16 17:12:18 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -317,7 +317,8 @@ sunxi_mmc_attach_i(device_t self)
SMC_CAPS_MULTI_SEG_DMA |
SMC_CAPS_AUTO_STOP |
SMC_CAPS_SD_HIGHSPEED |
- SMC_CAPS_MMC_HIGHSPEED;
+ SMC_CAPS_MMC_HIGHSPEED |
+ SMC_CAPS_POLLING;
if (width == 4)
saa.saa_caps |= SMC_CAPS_4BIT_MODE;
if (width == 8)
@@ -368,7 +369,8 @@ sunxi_mmc_intr(void *priv)
}
static int
-sunxi_mmc_wait_rint(struct sunxi_mmc_softc *sc, uint32_t mask, int timeout)
+sunxi_mmc_wait_rint(struct sunxi_mmc_softc *sc, uint32_t mask,
+ int timeout, bool poll)
{
int retry;
int error;
@@ -378,15 +380,24 @@ sunxi_mmc_wait_rint(struct sunxi_mmc_sof
if (sc->sc_intr_rint & mask)
return 0;
- retry = timeout / hz;
+ if (poll)
+ retry = timeout / hz * 1000;
+ else
+ retry = timeout / hz;
while (retry > 0) {
- error = cv_timedwait(&sc->sc_intr_cv,
- &sc->sc_intr_lock, hz);
- if (error && error != EWOULDBLOCK)
- return error;
+ if (poll) {
+ sc->sc_intr_rint |= MMC_READ(sc, SUNXI_MMC_RINT);
+ } else {
+ error = cv_timedwait(&sc->sc_intr_cv,
+ &sc->sc_intr_lock, hz);
+ if (error && error != EWOULDBLOCK)
+ return error;
+ }
if (sc->sc_intr_rint & mask)
return 0;
+ if (poll)
+ delay(1000);
--retry;
}
@@ -420,7 +431,6 @@ sunxi_mmc_host_reset(sdmmc_chipset_handl
MMC_WRITE(sc, SUNXI_MMC_GCTRL,
MMC_READ(sc, SUNXI_MMC_GCTRL) | SUNXI_MMC_GCTRL_INTEN);
-
return 0;
}
@@ -680,13 +690,14 @@ sunxi_mmc_exec_command(sdmmc_chipset_han
{
struct sunxi_mmc_softc *sc = sch;
uint32_t cmdval = SUNXI_MMC_CMD_START;
+ const bool poll = (cmd->c_flags & SCF_POLL) != 0;
int retry;
#ifdef SUNXI_MMC_DEBUG
aprint_normal_dev(sc->sc_dev,
- "opcode %d flags 0x%x data %p datalen %d blklen %d\n",
+ "opcode %d flags 0x%x data %p datalen %d blklen %d poll %d\n",
cmd->c_opcode, cmd->c_flags, cmd->c_data, cmd->c_datalen,
- cmd->c_blklen);
+ cmd->c_blklen, poll);
#endif
mutex_enter(&sc->sc_intr_lock);
@@ -766,7 +777,7 @@ sunxi_mmc_exec_command(sdmmc_chipset_han
}
cmd->c_error = sunxi_mmc_wait_rint(sc,
- SUNXI_MMC_INT_ERROR|SUNXI_MMC_INT_CMD_DONE, hz * 10);
+ SUNXI_MMC_INT_ERROR|SUNXI_MMC_INT_CMD_DONE, hz * 10, poll);
if (cmd->c_error == 0 && (sc->sc_intr_rint & SUNXI_MMC_INT_ERROR)) {
if (sc->sc_intr_rint & SUNXI_MMC_INT_RESP_TIMEOUT) {
cmd->c_error = ETIMEDOUT;
@@ -787,7 +798,7 @@ sunxi_mmc_exec_command(sdmmc_chipset_han
SUNXI_MMC_INT_ERROR|
SUNXI_MMC_INT_AUTO_CMD_DONE|
SUNXI_MMC_INT_DATA_OVER,
- hz*10);
+ hz*10, poll);
if (cmd->c_error == 0 &&
(sc->sc_intr_rint & SUNXI_MMC_INT_ERROR)) {
cmd->c_error = ETIMEDOUT;
