summaryrefslogtreecommitdiff
path: root/chip/mchp/gpio_cmds.c
diff options
context:
space:
mode:
Diffstat (limited to 'chip/mchp/gpio_cmds.c')
-rw-r--r--chip/mchp/gpio_cmds.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/chip/mchp/gpio_cmds.c b/chip/mchp/gpio_cmds.c
new file mode 100644
index 0000000000..cbf5f4c462
--- /dev/null
+++ b/chip/mchp/gpio_cmds.c
@@ -0,0 +1,97 @@
+/* Copyright 2017 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* MCHP MEC GPIO module EC UART commands */
+
+#include "common.h"
+#include "console.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "registers.h"
+#include "system.h"
+#include "util.h"
+#include "gpio_chip.h"
+#include "tfdp_chip.h"
+
+/* Console output macros */
+#define CPUTS(outstr) cputs(CC_LPC, outstr)
+#define CPRINTS(format, args...) cprints(CC_LPC, format, ## args)
+
+
+
+static int cmd_gp_get_config(int argc, char **argv)
+{
+ char *e;
+ int i;
+ uint32_t gctrl;
+
+ /* If a signal is specified, print only that one */
+ if (argc == 2) {
+ i = strtoi(argv[1], &e, 0);
+ if (*e)
+ return EC_ERROR_PARAM1;
+
+ if (!gpio_is_implemented(i))
+ return EC_ERROR_PARAM1;
+
+ gctrl = MCHP_GPIO_CTRL(i);
+
+ ccprintf(" GPIO[0x%X].Ctrl = 0x%08X\n", i, gctrl);
+
+ } else { /* Otherwise print them all */
+ for (i = 0; i < GPIO_COUNT; i++) {
+ if (!gpio_is_implemented(i))
+ continue; /* Skip unsupported signals */
+
+ gctrl = MCHP_GPIO_CTRL(i);
+
+ ccprintf(" GPIO[0x%X].Ctrl = 0x%08X\n", i, gctrl);
+ }
+ }
+
+ /* Flush console to avoid truncating output */
+ cflush();
+
+ return EC_SUCCESS;
+}
+DECLARE_CONSOLE_COMMAND(gpgetcfg, cmd_gp_get_config,
+ "[number]",
+ "Read GPIO config");
+
+static int cmd_gp_set_config(int argc, char **argv)
+{
+ char *e;
+ int i;
+ uint32_t gctrl;
+
+ /* If a signal is specified, print only that one */
+ if (argc > 2) {
+ i = strtoi(argv[1], &e, 0);
+ if (*e)
+ return EC_ERROR_PARAM1;
+
+ if (!gpio_is_implemented(i))
+ return EC_ERROR_PARAM1;
+
+ gctrl = (uint32_t)strtoi(argv[2], &e, 0);
+ if (*e)
+ return EC_ERROR_PARAM2;
+
+ MCHP_GPIO_CTRL(i) = gctrl;
+ gctrl = MCHP_GPIO_CTRL(i);
+ ccprintf(" GPIO[0x%X].Ctrl = 0x%08X\n", i, gctrl);
+
+ } else {
+ ccprintf(" Requires two parameters: GPIO num and new config");
+ }
+ /* Flush console to avoid truncating output */
+ cflush();
+
+ return EC_SUCCESS;
+}
+DECLARE_CONSOLE_COMMAND(gpsetcfg, cmd_gp_set_config,
+ "gp_num val",
+ "Set GPIO config");
+