[src/trunk]: src/sys/arch/arm/allwinner blink status LED during data transfers

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ce6b830398df
branches:  trunk
changeset: 327030:ce6b830398df
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Wed Feb 26 00:39:30 2014 +0000

description:
blink status LED during data transfers

diffstat:

 sys/arch/arm/allwinner/awin_mmc.c |  24 ++++++++++++++++++++++--
 1 files changed, 22 insertions(+), 2 deletions(-)

diffs (67 lines):

diff -r f4b44648f4e8 -r ce6b830398df sys/arch/arm/allwinner/awin_mmc.c
--- a/sys/arch/arm/allwinner/awin_mmc.c Wed Feb 26 00:32:21 2014 +0000
+++ b/sys/arch/arm/allwinner/awin_mmc.c Wed Feb 26 00:39:30 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: awin_mmc.c,v 1.1 2014/02/25 00:08:29 jmcneill Exp $ */
+/* $NetBSD: awin_mmc.c,v 1.2 2014/02/26 00:39:30 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2014 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
 #include "locators.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.1 2014/02/25 00:08:29 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.2 2014/02/26 00:39:30 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -93,6 +93,8 @@
        struct awin_gpio_pindata sc_gpio_detect;        /* card detect */
        bool sc_has_gpio_wp;
        struct awin_gpio_pindata sc_gpio_wp;            /* write protect */
+       bool sc_has_gpio_led;
+       struct awin_gpio_pindata sc_gpio_led;           /* LED */
 };
 
 CFATTACH_DECL_NEW(awin_mmc, sizeof(struct awin_mmc_softc),
@@ -189,6 +191,14 @@
                        sc->sc_has_gpio_wp = true;
                }
        }
+       if (prop_dictionary_get_cstring_nocopy(cfg, "led-gpio", &pin_name)) {
+               if (!awin_gpio_pin_reserve(pin_name, &sc->sc_gpio_led)) {
+                       aprint_error_dev(self,
+                           "failed to reserve GPIO \"%s\"\n", pin_name);
+               } else {
+                       sc->sc_has_gpio_led = true;
+               }
+       }
 
        awin_mmc_host_reset(sc);
        awin_mmc_bus_width(sc, 1);
@@ -208,6 +218,14 @@
        sc->sc_sdmmc_dev = config_found(self, &saa, NULL);
 }
 
+static void
+awin_mmc_led(struct awin_mmc_softc *sc, int on)
+{
+       if (!sc->sc_has_gpio_led)
+               return;
+       awin_gpio_pindata_write(&sc->sc_gpio_led, on);
+}
+
 static int
 awin_mmc_host_reset(sdmmc_chipset_handle_t sch)
 {
@@ -448,7 +466,9 @@
                MMC_WRITE(sc, AWIN_MMC_CMD, cmdval | cmd->c_opcode);
                cmd->c_resid = cmd->c_datalen;
                cmd->c_buf = cmd->c_data;
+               awin_mmc_led(sc, 0);
                cmd->c_error = awin_mmc_xfer_data(sc, cmd);
+               awin_mmc_led(sc, 1);
                if (cmd->c_error) {
                        aprint_error_dev(sc->sc_dev,
                            "xfer data timeout\n");