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-rw-r--r--package/kernel/mmc_over_gpio/files/mmc_over_gpio.config8
-rw-r--r--package/kernel/mmc_over_gpio/files/mmc_over_gpio.init83
2 files changed, 91 insertions, 0 deletions
diff --git a/package/kernel/mmc_over_gpio/files/mmc_over_gpio.config b/package/kernel/mmc_over_gpio/files/mmc_over_gpio.config
new file mode 100644
index 0000000..23f0084
--- /dev/null
+++ b/package/kernel/mmc_over_gpio/files/mmc_over_gpio.config
@@ -0,0 +1,8 @@
+config 'mmc_over_gpio'
+ option 'name' 'default'
+ option 'enabled' '0'
+ option 'DI_pin' '@GPIO_DI_PIN@'
+ option 'DO_pin' '@GPIO_DO_PIN@'
+ option 'CLK_pin' '@GPIO_CLK_PIN@'
+ option 'CS_pin' '@GPIO_CS_PIN@'
+ option 'mode' '0'
diff --git a/package/kernel/mmc_over_gpio/files/mmc_over_gpio.init b/package/kernel/mmc_over_gpio/files/mmc_over_gpio.init
new file mode 100644
index 0000000..121c803
--- /dev/null
+++ b/package/kernel/mmc_over_gpio/files/mmc_over_gpio.init
@@ -0,0 +1,83 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2008 OpenWrt.org
+START=90
+
+CONFIGFS_DIR="/config/gpiommc"
+
+# add_device(name, DI_pin, DO_pin, CLK_pin, CS_pin, mode)
+add_device() {
+ local dir="$CONFIGFS_DIR/$1"
+
+ mkdir -p $dir
+ [ $? -eq 0 ] || return 1
+ echo $2 > $dir/gpio_data_in
+ [ $? -eq 0 ] || return 1
+ echo $3 > $dir/gpio_data_out
+ [ $? -eq 0 ] || return 1
+ echo $4 > $dir/gpio_clock
+ [ $? -eq 0 ] || return 1
+ echo $5 > $dir/gpio_chipselect
+ [ $? -eq 0 ] || return 1
+ echo $6 > $dir/spi_mode
+ [ $? -eq 0 ] || return 1
+ # XXX We have more config options available. Use defaults for now.
+
+ echo 1 > $dir/register
+ [ $? -eq 0 ] || return 1
+
+ return 0
+}
+
+# remove_device(name)
+remove_device() {
+ local dir="$CONFIGFS_DIR/$1"
+
+ rmdir $dir
+}
+
+mount_configfs() {
+ # FIXME: This should probably be done somewhere else.
+ mount | grep configfs
+ if [ $? -eq 0 ]; then
+ # already mounted
+ return 0
+ fi
+ mkdir -p /config
+ [ $? -eq 0 ] || return 1
+ mount configfs -t configfs /config
+ [ $? -eq 0 ] || return 1
+
+ return 0
+}
+
+start_service() {
+ local section="$1"
+ config_get "name" "$section" "name"
+ config_get "DI_pin" "$section" "DI_pin"
+ config_get "DO_pin" "$section" "DO_pin"
+ config_get "CLK_pin" "$section" "CLK_pin"
+ config_get "CS_pin" "$section" "CS_pin"
+ config_get "mode" "$section" "mode"
+ config_get_bool "enabled" "$section" "enabled" '1'
+ [ "$enabled" -gt 0 ] && add_device "$name" $DI_pin $DO_pin $CLK_pin $CS_pin $mode &
+}
+
+stop_service() {
+ local section="$1"
+ config_get "name" "$section" "name"
+ remove_device "$name"
+}
+
+start() {
+ # Make sure configfs is mounted
+ mount_configfs
+ [ $? -eq 0 ] || return 1
+
+ config_load "mmc_over_gpio"
+ config_foreach start_service "mmc_over_gpio"
+}
+
+stop() {
+ config_load "mmc_over_gpio"
+ config_foreach stop_service "mmc_over_gpio"
+}