#include <asm/io.h>
#include <libfdt.h>
#include <netdev.h>
+#include <led-display.h>
+#include <linux/err.h>
#include "mt46v32m16.h"
return state;
}
#endif
+
+#ifdef CONFIG_CMD_DISPLAY
+#define DISPLAY_BUF_SIZE 2
+static u8 display_buf[DISPLAY_BUF_SIZE];
+static u8 display_putc_pos;
+static u8 display_out_pos;
+
+void display_set(int cmd) {
+
+ if (cmd & DISPLAY_CLEAR) {
+ display_buf[0] = display_buf[1] = 0;
+ }
+
+ if (cmd & DISPLAY_HOME) {
+ display_putc_pos = 0;
+ }
+}
+
+#define SEG_A (1<<0)
+#define SEG_B (1<<1)
+#define SEG_C (1<<2)
+#define SEG_D (1<<3)
+#define SEG_E (1<<4)
+#define SEG_F (1<<5)
+#define SEG_G (1<<6)
+#define SEG_P (1<<7)
+#define SEG__ 0
+
+/*
+ * +- A -+
+ * | |
+ * F B
+ * | |
+ * +- G -+
+ * | |
+ * E C
+ * | |
+ * +- D -+ P
+ *
+ * 0..9 index 0..9
+ * A..Z index 10..35
+ * - index 36
+ * _ index 37
+ * . index 38
+ */
+
+#define SYMBOL_DASH (36)
+#define SYMBOL_UNDERLINE (37)
+#define SYMBOL_DOT (38)
+
+static u8 display_char2seg7_tbl[]=
+{
+ SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F, /* 0 */
+ SEG_B | SEG_C, /* 1 */
+ SEG_A | SEG_B | SEG_D | SEG_E | SEG_G, /* 2 */
+ SEG_A | SEG_B | SEG_C | SEG_D | SEG_G, /* 3 */
+ SEG_B | SEG_C | SEG_F | SEG_G, /* 4 */
+ SEG_A | SEG_C | SEG_D | SEG_F | SEG_G, /* 5 */
+ SEG_A | SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, /* 6 */
+ SEG_A | SEG_B | SEG_C, /* 7 */
+ SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, /* 8 */
+ SEG_A | SEG_B | SEG_C | SEG_D | SEG_F | SEG_G, /* 9 */
+ SEG_A | SEG_B | SEG_C | SEG_E | SEG_F | SEG_G, /* A */
+ SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, /* b */
+ SEG_A | SEG_D | SEG_E | SEG_F, /* C */
+ SEG_B | SEG_C | SEG_D | SEG_E | SEG_G, /* d */
+ SEG_A | SEG_D | SEG_E | SEG_F | SEG_G, /* E */
+ SEG_A | SEG_E | SEG_F | SEG_G, /* F */
+ 0, /* g - not displayed */
+ SEG_B | SEG_C | SEG_E | SEG_F | SEG_G, /* H */
+ SEG_B | SEG_C, /* I */
+ 0, /* J - not displayed */
+ 0, /* K - not displayed */
+ SEG_D | SEG_E | SEG_F, /* L */
+ 0, /* m - not displayed */
+ 0, /* n - not displayed */
+ SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F, /* O */
+ SEG_A | SEG_B | SEG_E | SEG_F | SEG_G, /* P */
+ 0, /* q - not displayed */
+ 0, /* r - not displayed */
+ SEG_A | SEG_C | SEG_D | SEG_F | SEG_G, /* S */
+ SEG_D | SEG_E | SEG_F | SEG_G, /* t */
+ SEG_B | SEG_C | SEG_D | SEG_E | SEG_F, /* U */
+ 0, /* V - not displayed */
+ 0, /* w - not displayed */
+ 0, /* X - not displayed */
+ SEG_B | SEG_C | SEG_D | SEG_F | SEG_G, /* Y */
+ 0, /* Z - not displayed */
+ SEG_G, /* - */
+ SEG_D, /* _ */
+ SEG_P /* . */
+};
+
+/* Convert char to the LED segments representation */
+static u8 display_char2seg7(char c)
+{
+ u8 val = 0;
+
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (c >= 'a' && c <= 'z')
+ c -= 'a' - 10;
+ else if (c >= 'A' && c <= 'Z')
+ c -= 'A' - 10;
+ else if (c == '-')
+ c = SYMBOL_DASH;
+ else if (c == '_')
+ c = SYMBOL_UNDERLINE;
+ else if (c == '.')
+ c = SYMBOL_DOT;
+ else
+ c = ' '; /* display unsupported symbols as space */
+
+ if (c != ' ')
+ val = display_char2seg7_tbl[(int)c];
+
+ return val;
+}
+
+int display_putc(char c)
+{
+ if (display_putc_pos >= DISPLAY_BUF_SIZE)
+ return -1;
+
+ display_buf[display_putc_pos++] = display_char2seg7(c);
+ /* one-symbol message should be steady */
+ if (display_putc_pos == 1)
+ display_buf[display_putc_pos] = display_char2seg7(c);
+
+ return c;
+}
+
+/*
+ * Flush current symbol to the LED display hardware
+ */
+static inline void display_flush(void)
+{
+ u32 val = display_buf[display_out_pos];
+
+ val |= (val << 8) | (val << 16) | (val << 24);
+ out_be32((void *)CONFIG_SYS_DISP_CHR_RAM, val);
+}
+
+/*
+ * Output contents of the software display buffer to the LED display every 0.5s
+ */
+void board_show_activity(ulong timestamp)
+{
+ static ulong last;
+ static u8 once;
+
+ if (!once || (timestamp - last >= (CONFIG_SYS_HZ / 2))) {
+ display_flush();
+ display_out_pos ^= 1;
+ last = timestamp;
+ once = 1;
+ }
+}
+
+/*
+ * Empty fake function
+ */
+void show_activity(int arg)
+{
+}
+#endif
+#if defined (CONFIG_SHOW_BOOT_PROGRESS)
+static int a4m072_status2code(int status, char *buf)
+{
+ char c = 0;
+
+ if (((status > 0) && (status <= 8)) ||
+ ((status >= 100) && (status <= 108)) ||
+ ((status < 0) && (status >= -9)) ||
+ (status == -100) || (status == -101) ||
+ ((status <= -103) && (status >= -113))) {
+ c = '5';
+ } else if (((status >= 9) && (status <= 14)) ||
+ ((status >= 120) && (status <= 123)) ||
+ ((status >= 125) && (status <= 129)) ||
+ ((status >= -13) && (status <= -10)) ||
+ (status == -120) || (status == -122) ||
+ ((status <= -124) && (status >= -127)) ||
+ (status == -129)) {
+ c = '8';
+ } else if (status == 15) {
+ c = '9';
+ } else if ((status <= -30) && (status >= -32)) {
+ c = 'A';
+ } else if (((status <= -35) && (status >= -40)) ||
+ ((status <= -42) && (status >= -51)) ||
+ ((status <= -53) && (status >= -58)) ||
+ (status == -64) ||
+ ((status <= -80) && (status >= -83)) ||
+ (status == -130) || (status == -140) ||
+ (status == -150)) {
+ c = 'B';
+ }
+
+ if (c == 0)
+ return -EINVAL;
+
+ buf[0] = (status < 0) ? '-' : c;
+ buf[1] = c;
+
+ return 0;
+}
+
+void show_boot_progress(int status)
+{
+ char buf[2];
+
+ if (a4m072_status2code(status, buf) < 0)
+ return;
+
+ display_putc(buf[0]);
+ display_putc(buf[1]);
+ display_set(DISPLAY_HOME);
+ display_out_pos = 0; /* reset output position */
+
+ /* we want to flush status 15 now */
+ if (status == BOOTSTAGE_ID_RUN_OS)
+ display_flush();
+}
+#endif
projects / u-boot / blobdiff