Revision 0:9fd3dad2dc25, committed 2014-04-30

Comitter:

IH

Date:

Wed Apr 30 21:26:27 2014 +0000

Child:

1:84cd616cc684

Commit message:

Basic HID KBD working. Bedtime!

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Wed Apr 30 21:26:27 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/USBDevice/#5b7d31d9d3f3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hid_keys.h	Wed Apr 30 21:26:27 2014 +0000
@@ -0,0 +1,368 @@
+#ifndef USB_HID_KEYBOARD_H
+#define USB_HID_KEYBOARD_H
+
+/* Placed in the public domain by its author, Ian Harvey */
+
+/* Modifier key bit values */
+
+#define MODBIT_LEFT_CTRL        0x01
+#define MODBIT_LEFT_SHIFT       0x02
+#define MODBIT_LEFT_ALT         0x04
+#define MODBIT_LEFT_GUI         0x08
+#define MODBIT_RIGHT_CTRL       0x10
+#define MODBIT_RIGHT_SHIFT      0x20
+#define MODBIT_RIGHT_ALT        0x40
+#define MODBIT_RIGHT_GUI        0x80
+
+/* From USB HID Usage Tables Version 1.12, Section 10 */
+
+#define KEY_NONE            0
+#define KEY_ErrorRollOver   1
+#define KEY_POSTFail        2
+#define KEY_ErrorUndefined  3
+#define KEY_A   4
+#define KEY_B   5
+#define KEY_C   6
+#define KEY_D   7
+#define KEY_E   8
+#define KEY_F   9
+#define KEY_G   10
+#define KEY_H   11
+#define KEY_I   12
+#define KEY_J   13
+#define KEY_K   14
+#define KEY_L   15
+#define KEY_M   16
+#define KEY_N   17
+#define KEY_O   18
+#define KEY_P   19
+#define KEY_Q   20
+#define KEY_R   21
+#define KEY_S   22
+#define KEY_T   23
+#define KEY_U   24
+#define KEY_V   25
+#define KEY_W   26
+#define KEY_X   27
+#define KEY_Y   28
+#define KEY_Z   29
+#define KEY_1   30
+#define KEY_2   31
+#define KEY_3   32
+#define KEY_4   33
+#define KEY_5   34
+#define KEY_6   35
+#define KEY_7   36
+#define KEY_8   37
+#define KEY_9   38
+#define KEY_0   39
+
+#define KEY_ENTER       40
+#define KEY_ESC         41
+#define KEY_BACKSPACE   42
+#define KEY_TAB         43
+#define KEY_SPACE       44
+#define KEY_MINUS       45 /* And underscore */
+#define KEY_EQUALS      46 /* And plus */
+#define KEY_OPEN_SQUARE 47 /* And open-curly-bracket */
+#define KEY_CLOSE_SQUARE    48 /* And close-curly-bracket */
+#define KEY_BACKSLASH   49
+#define KEY_HASH_TILDE  50
+#define KEY_SEMICOLON   51
+#define KEY_SINGLE_QUOTE    52
+#define KEY_BACKTICK_TILDE  53
+#define KEY_COMMA       54 /* And less-than */
+#define KEY_PERIOD      55 /* And greater-than */
+#define KEY_SLASH       56 /* And question-mark */
+#define KEY_CAPS_LOCK   57
+
+#define KEY_F1          58
+#define KEY_F2          59
+#define KEY_F3          60
+#define KEY_F4          61
+#define KEY_F5          62
+#define KEY_F6          63
+#define KEY_F7          64
+#define KEY_F8          65
+#define KEY_F9          66
+#define KEY_F10         67
+#define KEY_F11         68
+#define KEY_F12         69
+
+#define KEY_PRINT_SCREEN    70
+#define KEY_SCROLL_LOCK     71
+#define KEY_PAUSE       72
+#define KEY_INSERT      73
+#define KEY_HOME        74
+#define KEY_PAGE_UP     75
+#define KEY_DELETE      76 /* i.e. forward delete */
+#define KEY_END         77
+#define KEY_PAGE_DOWN   78
+#define KEY_RIGHT_ARROW 79
+#define KEY_LEFT_ARROW  80
+#define KEY_DOWN_ARROW  81
+#define KEY_UP_ARROW    82
+
+/* TODO: keypad codes */
+
+#define KEY_LEFT_CTRL       0xE0
+#define KEY_LEFT_SHIFT      0xE1
+#define KEY_LEFT_ALT        0xE2
+#define KEY_LEFT_GUI        0xE3
+#define KEY_RIGHT_CTRL      0xE4
+#define KEY_RIGHT_SHIFT     0xE5
+#define KEY_RIGHT_ALT       0xE6
+#define KEY_RIGHT_GUI       0xE7
+
+#define KEY_MODIFIERS_START 0xE0
+#define KEY_MODIFIERS_END   0xE7
+#define IS_MODIFIER(key) ((key) >= KEY_MODIFIERS_START && (key) <= KEY_MODIFIERS_END)
+#define MODIFIER_BIT(key) (1 << ((key)-KEY_MODIFIERS_START))
+
+
+
+#endif /* USB_HID_KEYBOARD_H */
+#ifndef USB_HID_KEYBOARD_H
+#define USB_HID_KEYBOARD_H
+
+/* Modifier key bit values */
+
+#define MODBIT_LEFT_CTRL        0x01
+#define MODBIT_LEFT_SHIFT       0x02
+#define MODBIT_LEFT_ALT         0x04
+#define MODBIT_LEFT_GUI         0x08
+#define MODBIT_RIGHT_CTRL       0x10
+#define MODBIT_RIGHT_SHIFT      0x20
+#define MODBIT_RIGHT_ALT        0x40
+#define MODBIT_RIGHT_GUI        0x80
+
+/* From USB HID Usage Tables Version 1.12, Section 10 */
+
+#define KEY_NONE            0
+#define KEY_ErrorRollOver   1
+#define KEY_POSTFail        2
+#define KEY_ErrorUndefined  3
+#define KEY_A   4
+#define KEY_B   5
+#define KEY_C   6
+#define KEY_D   7
+#define KEY_E   8
+#define KEY_F   9
+#define KEY_G   10
+#define KEY_H   11
+#define KEY_I   12
+#define KEY_J   13
+#define KEY_K   14
+#define KEY_L   15
+#define KEY_M   16
+#define KEY_N   17
+#define KEY_O   18
+#define KEY_P   19
+#define KEY_Q   20
+#define KEY_R   21
+#define KEY_S   22
+#define KEY_T   23
+#define KEY_U   24
+#define KEY_V   25
+#define KEY_W   26
+#define KEY_X   27
+#define KEY_Y   28
+#define KEY_Z   29
+#define KEY_1   30
+#define KEY_2   31
+#define KEY_3   32
+#define KEY_4   33
+#define KEY_5   34
+#define KEY_6   35
+#define KEY_7   36
+#define KEY_8   37
+#define KEY_9   38
+#define KEY_0   39
+
+#define KEY_ENTER       40
+#define KEY_ESC         41
+#define KEY_BACKSPACE   42
+#define KEY_TAB         43
+#define KEY_SPACE       44
+#define KEY_MINUS       45 /* And underscore */
+#define KEY_EQUALS      46 /* And plus */
+#define KEY_OPEN_SQUARE 47 /* And open-curly-bracket */
+#define KEY_CLOSE_SQUARE    48 /* And close-curly-bracket */
+#define KEY_BACKSLASH   49
+#define KEY_HASH_TILDE  50
+#define KEY_SEMICOLON   51
+#define KEY_SINGLE_QUOTE    52
+#define KEY_BACKTICK_TILDE  53
+#define KEY_COMMA       54 /* And less-than */
+#define KEY_PERIOD      55 /* And greater-than */
+#define KEY_SLASH       56 /* And question-mark */
+#define KEY_CAPS_LOCK   57
+
+#define KEY_F1          58
+#define KEY_F2          59
+#define KEY_F3          60
+#define KEY_F4          61
+#define KEY_F5          62
+#define KEY_F6          63
+#define KEY_F7          64
+#define KEY_F8          65
+#define KEY_F9          66
+#define KEY_F10         67
+#define KEY_F11         68
+#define KEY_F12         69
+
+#define KEY_PRINT_SCREEN    70
+#define KEY_SCROLL_LOCK     71
+#define KEY_PAUSE       72
+#define KEY_INSERT      73
+#define KEY_HOME        74
+#define KEY_PAGE_UP     75
+#define KEY_DELETE      76 /* i.e. forward delete */
+#define KEY_END         77
+#define KEY_PAGE_DOWN   78
+#define KEY_RIGHT_ARROW 79
+#define KEY_LEFT_ARROW  80
+#define KEY_DOWN_ARROW  81
+#define KEY_UP_ARROW    82
+
+/* TODO: keypad codes */
+
+#define KEY_LEFT_CTRL       0xE0
+#define KEY_LEFT_SHIFT      0xE1
+#define KEY_LEFT_ALT        0xE2
+#define KEY_LEFT_GUI        0xE3
+#define KEY_RIGHT_CTRL      0xE4
+#define KEY_RIGHT_SHIFT     0xE5
+#define KEY_RIGHT_ALT       0xE6
+#define KEY_RIGHT_GUI       0xE7
+
+#define KEY_MODIFIERS_START 0xE0
+#define KEY_MODIFIERS_END   0xE7
+#define IS_MODIFIER(key) ((key) >= KEY_MODIFIERS_START && (key) <= KEY_MODIFIERS_END)
+#define MODIFIER_BIT(key) (1 << ((key)-KEY_MODIFIERS_START))
+
+
+
+#endif /* USB_HID_KEYBOARD_H */
+#ifndef USB_HID_KEYBOARD_H
+#define USB_HID_KEYBOARD_H
+
+/* Modifier key bit values */
+
+#define MODBIT_LEFT_CTRL        0x01
+#define MODBIT_LEFT_SHIFT       0x02
+#define MODBIT_LEFT_ALT         0x04
+#define MODBIT_LEFT_GUI         0x08
+#define MODBIT_RIGHT_CTRL       0x10
+#define MODBIT_RIGHT_SHIFT      0x20
+#define MODBIT_RIGHT_ALT        0x40
+#define MODBIT_RIGHT_GUI        0x80
+
+/* From USB HID Usage Tables Version 1.12, Section 10 */
+
+#define KEY_NONE            0
+#define KEY_ErrorRollOver   1
+#define KEY_POSTFail        2
+#define KEY_ErrorUndefined  3
+#define KEY_A   4
+#define KEY_B   5
+#define KEY_C   6
+#define KEY_D   7
+#define KEY_E   8
+#define KEY_F   9
+#define KEY_G   10
+#define KEY_H   11
+#define KEY_I   12
+#define KEY_J   13
+#define KEY_K   14
+#define KEY_L   15
+#define KEY_M   16
+#define KEY_N   17
+#define KEY_O   18
+#define KEY_P   19
+#define KEY_Q   20
+#define KEY_R   21
+#define KEY_S   22
+#define KEY_T   23
+#define KEY_U   24
+#define KEY_V   25
+#define KEY_W   26
+#define KEY_X   27
+#define KEY_Y   28
+#define KEY_Z   29
+#define KEY_1   30
+#define KEY_2   31
+#define KEY_3   32
+#define KEY_4   33
+#define KEY_5   34
+#define KEY_6   35
+#define KEY_7   36
+#define KEY_8   37
+#define KEY_9   38
+#define KEY_0   39
+
+#define KEY_ENTER       40
+#define KEY_ESC         41
+#define KEY_BACKSPACE   42
+#define KEY_TAB         43
+#define KEY_SPACE       44
+#define KEY_MINUS       45 /* And underscore */
+#define KEY_EQUALS      46 /* And plus */
+#define KEY_OPEN_SQUARE 47 /* And open-curly-bracket */
+#define KEY_CLOSE_SQUARE    48 /* And close-curly-bracket */
+#define KEY_BACKSLASH   49
+#define KEY_HASH_TILDE  50
+#define KEY_SEMICOLON   51
+#define KEY_SINGLE_QUOTE    52
+#define KEY_BACKTICK_TILDE  53
+#define KEY_COMMA       54 /* And less-than */
+#define KEY_PERIOD      55 /* And greater-than */
+#define KEY_SLASH       56 /* And question-mark */
+#define KEY_CAPS_LOCK   57
+
+#define KEY_F1          58
+#define KEY_F2          59
+#define KEY_F3          60
+#define KEY_F4          61
+#define KEY_F5          62
+#define KEY_F6          63
+#define KEY_F7          64
+#define KEY_F8          65
+#define KEY_F9          66
+#define KEY_F10         67
+#define KEY_F11         68
+#define KEY_F12         69
+
+#define KEY_PRINT_SCREEN    70
+#define KEY_SCROLL_LOCK     71
+#define KEY_PAUSE       72
+#define KEY_INSERT      73
+#define KEY_HOME        74
+#define KEY_PAGE_UP     75
+#define KEY_DELETE      76 /* i.e. forward delete */
+#define KEY_END         77
+#define KEY_PAGE_DOWN   78
+#define KEY_RIGHT_ARROW 79
+#define KEY_LEFT_ARROW  80
+#define KEY_DOWN_ARROW  81
+#define KEY_UP_ARROW    82
+
+/* TODO: keypad codes */
+
+#define KEY_LEFT_CTRL       0xE0
+#define KEY_LEFT_SHIFT      0xE1
+#define KEY_LEFT_ALT        0xE2
+#define KEY_LEFT_GUI        0xE3
+#define KEY_RIGHT_CTRL      0xE4
+#define KEY_RIGHT_SHIFT     0xE5
+#define KEY_RIGHT_ALT       0xE6
+#define KEY_RIGHT_GUI       0xE7
+
+#define KEY_MODIFIERS_START 0xE0
+#define KEY_MODIFIERS_END   0xE7
+#define IS_MODIFIER(key) ((key) >= KEY_MODIFIERS_START && (key) <= KEY_MODIFIERS_END)
+#define MODIFIER_BIT(key) (1 << ((key)-KEY_MODIFIERS_START))
+
+
+
+#endif /* USB_HID_KEYBOARD_H */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 30 21:26:27 2014 +0000
@@ -0,0 +1,112 @@
+#include "mbed.h"
+#include "USBKeyboard.h"
+#include "hid_keys.h"
+
+#define MAX_ROWS 5
+#define MAX_COLS 14
+#define REPORT_LEN 9
+#define REPORT_ID_KEYBOARD 1
+
+const uint8_t hid_keys[MAX_ROWS * MAX_COLS] = 
+{
+    KEY_PERIOD,     KEY_L,          KEY_O,      KEY_9,      KEY_BACKSPACE,
+    KEY_SLASH,      KEY_SEMICOLON,  KEY_P,      KEY_0,      KEY_NONE,
+    KEY_NONE,       KEY_EQUALS,     KEY_UP_ARROW,   KEY_MINUS, KEY_NONE,
+    KEY_DELETE,     KEY_ENTER,      KEY_DOWN_ARROW, KEY_LEFT_ARROW, KEY_NONE,
+    KEY_SPACE,      KEY_NONE,       KEY_OPEN_SQUARE, KEY_RIGHT_ARROW, KEY_NONE,
+    KEY_COMMA,      KEY_K,          KEY_I,      KEY_8,      KEY_NONE,
+    KEY_M,          KEY_J,          KEY_U,      KEY_7,      KEY_NONE,
+    KEY_N,          KEY_H,          KEY_Y,      KEY_6,      KEY_NONE,
+    KEY_B,          KEY_G,          KEY_T,      KEY_5,      KEY_NONE,
+    KEY_V,          KEY_F,          KEY_R,      KEY_4,      KEY_NONE,
+    KEY_C,          KEY_D,          KEY_E,      KEY_3,      KEY_NONE,
+    KEY_X,          KEY_S,          KEY_W,      KEY_2,      KEY_NONE,
+    KEY_Z,          KEY_A,          KEY_Q,      KEY_1,      KEY_NONE,
+    KEY_LEFT_SHIFT, KEY_LEFT_CTRL,  KEY_TAB,    KEY_ESC,    KEY_NONE,
+};
+
+
+BusOut leds(LED1, LED2, LED3);
+
+BusOut scanCols(
+    PTC10,PTC8, 
+    PTC6, PTA5,   
+    PTC5, PTA4,  
+    PTC4, PTA12,
+    PTC3, PTD4,   
+    PTC0, PTA2,  
+    PTC7, PTA1  
+    );
+
+BusIn inRows(
+    PTB10,
+    PTB11,
+    PTE2,
+    PTE3,
+    PTE5 );
+
+DigitalOut extLed(PTE4);
+
+USBKeyboard kbd;
+
+static int scanColumn(int col)
+{
+    int rowBits;
+    // Drive output low to scan
+    scanCols.write(0x3FFF ^ (1 << col));
+    leds.write(col >> 1);
+    wait(0.01);
+    rowBits = inRows.read();
+    scanCols.write(0x3FFF);
+    // Inputs also active-low
+    return rowBits ^ 0x1F;
+}
+    
+int main()
+{
+    // Setup
+    inRows.mode(PullUp);
+    extLed = 1;
+
+    // Run loop
+    while(1)
+    {
+        int col, ocount;
+        HID_REPORT report;
+        
+        report.data[0] = REPORT_ID_KEYBOARD;
+        report.data[1] = 0; // modifiers
+        report.data[2] = 0;
+        ocount = 3;
+        
+        for (col=0; col < MAX_COLS; col++)
+        {
+            int row;
+            int rowBits = scanColumn(col);
+            if ( !rowBits )
+              continue;
+            
+            for (row=0; row < MAX_ROWS; row++)
+            {
+              if ( rowBits & (1 << row) )
+              {
+                uint8_t key = hid_keys[col * MAX_ROWS + row];
+                if ( IS_MODIFIER(key) )
+                  report.data[1] |= MODIFIER_BIT(key);
+                else if ( key != KEY_NONE )
+                {
+                  if ( ocount < REPORT_LEN )
+                    report.data[ocount++] = key;
+                }
+                //kbd.printf("c%dr%d ", col, row);
+              }
+            }
+        }
+
+        while( ocount < REPORT_LEN )
+          report.data[ocount++] = KEY_NONE;
+            
+        report.length = REPORT_LEN;  
+        kbd.send(&report);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Apr 30 21:26:27 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/8a40adfe8776
\ No newline at end of file