[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/platform/pc/keyboard.c b/src/bsp/lk/platform/pc/keyboard.c
new file mode 100644
index 0000000..3478cf2
--- /dev/null
+++ b/src/bsp/lk/platform/pc/keyboard.c
@@ -0,0 +1,342 @@
+/*
+ * Copyright (c) 2009 Corey Tabaka
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <sys/types.h>
+#include <err.h>
+#include <reg.h>
+#include <debug.h>
+#include <kernel/thread.h>
+#include <platform.h>
+#include <platform/interrupts.h>
+#include <platform/console.h>
+#include <platform/timer.h>
+#include <platform/pc.h>
+#include "platform_p.h"
+#include <arch/x86.h>
+#include <lib/cbuf.h>
+
+static inline int i8042_read_data(void)
+{
+ return inp(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+ return inp(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+ outp(I8042_DATA_REG, val);
+}
+
+static inline void i8042_write_command(int val)
+{
+ outp(I8042_COMMAND_REG, val);
+}
+
+/*
+ * timeout in milliseconds
+ */
+#define I8042_CTL_TIMEOUT 500
+
+/*
+ * status register bits
+ */
+#define I8042_STR_PARITY 0x80
+#define I8042_STR_TIMEOUT 0x40
+#define I8042_STR_AUXDATA 0x20
+#define I8042_STR_KEYLOCK 0x10
+#define I8042_STR_CMDDAT 0x08
+#define I8042_STR_MUXERR 0x04
+#define I8042_STR_IBF 0x02
+#define I8042_STR_OBF 0x01
+
+/*
+ * control register bits
+ */
+#define I8042_CTR_KBDINT 0x01
+#define I8042_CTR_AUXINT 0x02
+#define I8042_CTR_IGNKEYLK 0x08
+#define I8042_CTR_KBDDIS 0x10
+#define I8042_CTR_AUXDIS 0x20
+#define I8042_CTR_XLATE 0x40
+
+/*
+ * commands
+ */
+#define I8042_CMD_CTL_RCTR 0x0120
+#define I8042_CMD_CTL_WCTR 0x1060
+#define I8042_CMD_CTL_TEST 0x01aa
+
+#define I8042_CMD_KBD_DIS 0x00ad
+#define I8042_CMD_KBD_EN 0x00ae
+#define I8042_CMD_KBD_TEST 0x01ab
+#define I8042_CMD_KBD_MODE 0x01f0
+
+/*
+ * used for flushing buffers. the i8042 internal buffer shoudn't exceed this.
+ */
+#define I8042_BUFFER_LENGTH 32
+
+static inline void delay(lk_time_t delay)
+{
+ lk_time_t start = current_time();
+
+ while (start + delay > current_time());
+}
+
+/* scancodes we want to do something with that don't translate via table */
+#define SCANCODE_LSHIFT 0x2a
+#define SCANCODE_RSHIFT 0x36
+
+/* scancode translation tables */
+static const int KeyCodeSingleLower[] = {
+// 0 1 2 3 4 5 6 7 8 9 A B C D E F
+ -1, -1, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=','\b','\t', // 0
+ 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']','\n', -1, 'a', 's', // 1
+ 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';','\'', '`', -1,'\\', 'z', 'x', 'c', 'v', // 2
+ 'b', 'n', 'm', ',', '.', '/', -1, '*', -1, ' ', -1, -1, -1, -1, -1, -1, // 3
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 4
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 5
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 6
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 7
+};
+
+static const int KeyCodeMultiLower[] = {
+// 0 1 2 3 4 5 6 7 8 9 A B C D E F
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 0
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 1
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 2
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 3
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 4
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 5
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 6
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 7
+};
+
+static const int KeyCodeSingleUpper[] = {
+// 0 1 2 3 4 5 6 7 8 9 A B C D E F
+ -1, -1, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+','\b','\t', // 0
+ 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}','\n', -1, 'A', 'S', // 1
+ 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', -1, '|', 'Z', 'X', 'C', 'V', // 2
+ 'B', 'N', 'M', '<', '>', '?', -1, '*', -1, ' ', -1, -1, -1, -1, -1, -1, // 3
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 4
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 5
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 6
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 7
+};
+
+static const int KeyCodeMultiUpper[] = {
+// 0 1 2 3 4 5 6 7 8 9 A B C D E F
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 0
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 1
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 2
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 3
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 4
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 5
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 6
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 7
+};
+
+/*
+ * state key flags
+ */
+static bool key_lshift;
+static bool key_rshift;
+
+static cbuf_t key_buf;
+
+static void i8042_process_scode(uint8_t scode, unsigned int flags)
+{
+ static int lastCode = 0;
+ int keyCode;
+ uint8_t keyUpBit;
+
+ bool multi = lastCode == 0xe0;
+
+ // save the key up event bit
+ keyUpBit = scode & 0x80;
+ scode &= 0x7f;
+
+ if (scode == SCANCODE_LSHIFT) {
+ key_lshift = !keyUpBit;
+ }
+
+ if (scode == SCANCODE_RSHIFT) {
+ key_rshift = !keyUpBit;
+ }
+
+ if (key_lshift || key_rshift) {
+ keyCode = multi ? KeyCodeMultiUpper[scode] : KeyCodeSingleUpper[scode];
+ } else {
+ keyCode = multi ? KeyCodeMultiLower[scode] : KeyCodeSingleLower[scode];
+ }
+
+ /*printf_xy(71, 3, BLUE, "%02x%02x %c %c%c", multi ? lastCode : 0, scode,
+ keyCode != -1 ? (char) keyCode : ' ', key_lshift ? 'L' : ' ',
+ key_rshift ? 'R' : ' ');*/
+
+ if (keyCode != -1 && !keyUpBit) {
+ char c = (char) keyCode;
+ cbuf_write_char(&key_buf, c, false);
+ }
+
+ // update the last received code
+ lastCode = scode;
+}
+
+static int i8042_wait_read(void)
+{
+ int i = 0;
+ while ((~i8042_read_status() & I8042_STR_OBF) && (i < I8042_CTL_TIMEOUT)) {
+ delay(1);
+ i++;
+ }
+ return -(i == I8042_CTL_TIMEOUT);
+}
+
+static int i8042_wait_write(void)
+{
+ int i = 0;
+ while ((i8042_read_status() & I8042_STR_IBF) && (i < I8042_CTL_TIMEOUT)) {
+ delay(1);
+ i++;
+ }
+ return -(i == I8042_CTL_TIMEOUT);
+}
+
+static int i8042_flush(void)
+{
+ unsigned char data __UNUSED;
+ int i = 0;
+
+ //enter_critical_section();
+
+ while ((i8042_read_status() & I8042_STR_OBF) && (i++ < I8042_BUFFER_LENGTH)) {
+ delay(1);
+ data = i8042_read_data();
+ }
+
+ //exit_critical_section();
+
+ return i;
+}
+
+static int i8042_command(uint8_t *param, int command)
+{
+ int retval = 0, i = 0;
+
+ //enter_critical_section();
+
+ retval = i8042_wait_write();
+ if (!retval) {
+ i8042_write_command(command & 0xff);
+ }
+
+ if (!retval) {
+ for (i = 0; i < ((command >> 12) & 0xf); i++) {
+ if ((retval = i8042_wait_write())) {
+ break;
+ }
+
+ i8042_write_data(param[i]);
+ }
+ }
+
+ if (!retval) {
+ for (i = 0; i < ((command & 0xf0) >> 8); i++) {
+ if ((retval = i8042_wait_read())) {
+ break;
+ }
+
+ if (i8042_read_status() & I8042_STR_AUXDATA) {
+ param[i] = ~i8042_read_data();
+ } else {
+ param[i] = i8042_read_data();
+ }
+ }
+ }
+
+ //exit_critical_section();
+
+ return retval;
+}
+
+static enum handler_return i8042_interrupt(void *arg)
+{
+ uint8_t str, data = 0;
+
+ //enter_critical_section();
+ str = i8042_read_status();
+ if (str & I8042_STR_OBF) {
+ data = i8042_read_data();
+ }
+ //exit_critical_section();
+
+ if (str & I8042_STR_OBF) {
+ i8042_process_scode(data,
+ ((str & I8042_STR_PARITY) ? I8042_STR_PARITY : 0) |
+ ((str & I8042_STR_TIMEOUT) ? I8042_STR_TIMEOUT : 0));
+ }
+
+ return INT_NO_RESCHEDULE;
+}
+
+int platform_read_key(char *c)
+{
+ ssize_t len;
+
+ len = cbuf_read_char(&key_buf, c, true);
+ return len;
+}
+
+void platform_init_keyboard(void)
+{
+ uint8_t ctr;
+
+ cbuf_initialize(&key_buf, 32);
+
+ i8042_flush();
+
+ if (i8042_command(&ctr, I8042_CMD_CTL_RCTR)) {
+ dprintf(SPEW, "Failed to read CTR while initializing i8042\n");
+ return;
+ }
+
+ // turn on translation
+ ctr |= I8042_CTR_XLATE;
+
+ // enable keyboard and keyboard irq
+ ctr &= ~I8042_CTR_KBDDIS;
+ ctr |= I8042_CTR_KBDINT;
+
+ if (i8042_command(&ctr, I8042_CMD_CTL_WCTR)) {
+ dprintf(SPEW, "Failed to write CTR while initializing i8042\n");
+ return;
+ }
+
+ register_int_handler(INT_KEYBOARD, &i8042_interrupt, NULL);
+ unmask_interrupt(INT_KEYBOARD);
+
+ i8042_interrupt(NULL);
+}