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authorJoel Challis <git@zvecr.com>2021-10-20 21:18:49 +0100
committerGitHub <noreply@github.com>2021-10-20 21:18:49 +0100
commitd4be4b67a251ecc046d857c5cd00cfb37c394ab7 (patch)
tree15f6dd05ec293081782a9b42a30e1a81b33b6aa0 /platforms/chibios/drivers
parent5500c428dd41348243e8a1695986b0da070e2ffa (diff)
Relocate PS2 code (#14895)
* Relocate ps2 protocol code * clang * Move makefile logic
Diffstat (limited to 'platforms/chibios/drivers')
-rw-r--r--platforms/chibios/drivers/ps2/ps2_io.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/platforms/chibios/drivers/ps2/ps2_io.c b/platforms/chibios/drivers/ps2/ps2_io.c
new file mode 100644
index 0000000000..906d85d848
--- /dev/null
+++ b/platforms/chibios/drivers/ps2/ps2_io.c
@@ -0,0 +1,55 @@
+#include <stdbool.h>
+#include "ps2_io.h"
+
+// chibiOS headers
+#include "ch.h"
+#include "hal.h"
+
+/* Check port settings for clock and data line */
+#if !(defined(PS2_CLOCK_PIN))
+# error "PS/2 clock setting is required in config.h"
+#endif
+
+#if !(defined(PS2_DATA_PIN))
+# error "PS/2 data setting is required in config.h"
+#endif
+
+/*
+ * Clock
+ */
+void clock_init(void) {}
+
+void clock_lo(void) {
+ palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
+ palWriteLine(PS2_CLOCK_PIN, PAL_LOW);
+}
+
+void clock_hi(void) {
+ palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
+ palWriteLine(PS2_CLOCK_PIN, PAL_HIGH);
+}
+
+bool clock_in(void) {
+ palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_INPUT);
+ return palReadLine(PS2_CLOCK_PIN);
+}
+
+/*
+ * Data
+ */
+void data_init(void) {}
+
+void data_lo(void) {
+ palSetLineMode(PS2_DATA_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
+ palWriteLine(PS2_DATA_PIN, PAL_LOW);
+}
+
+void data_hi(void) {
+ palSetLineMode(PS2_DATA_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
+ palWriteLine(PS2_DATA_PIN, PAL_HIGH);
+}
+
+bool data_in(void) {
+ palSetLineMode(PS2_DATA_PIN, PAL_MODE_INPUT);
+ return palReadLine(PS2_DATA_PIN);
+}