Mercurial > ecos-v3_0-branch

annotate packages/hal/arm/cl7211/current/misc/lcd_panel_support.c @ 38:e7ba79f6d3a8 ecos-sw-1999-09-23

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge from eCos master repository on 1999-09-23-20:10:25-BST
author jlarmour
date Thu, 23 Sep 1999 19:52:27 +0000
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
38
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
1 //==========================================================================
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
2 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
3 // panel_support.c
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
4 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
5 // Cirrus CL72xx eval board LCD touch panel support code
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
6 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
7 //==========================================================================
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
8 //####COPYRIGHTBEGIN####
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
9 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
10 // -------------------------------------------
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
11 // The contents of this file are subject to the Cygnus eCos Public License
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
12 // Version 1.0 (the "License"); you may not use this file except in
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
13 // compliance with the License. You may obtain a copy of the License at
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
14 // http://sourceware.cygnus.com/ecos
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
15 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
16 // Software distributed under the License is distributed on an "AS IS"
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
18 // License for the specific language governing rights and limitations under
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
19 // the License.
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
20 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
21 // The Original Code is eCos - Embedded Cygnus Operating System, released
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
22 // September 30, 1998.
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
23 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
24 // The Initial Developer of the Original Code is Cygnus. Portions created
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
26 // -------------------------------------------
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
27 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
28 //####COPYRIGHTEND####
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
29 //==========================================================================
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
30 //#####DESCRIPTIONBEGIN####
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
31 //
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
32 // Author(s): gthomas
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
33 // Contributors: gthomas
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
34 // Date: 1999-09-13
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
35 // Description: Tool used to support the LCD touch panel
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
36 //####DESCRIPTIONEND####
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
37
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
38 static char lcd_panel_server_stack[STACK_SIZE];
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
39 static cyg_thread lcd_panel_server_thread_data;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
40 static cyg_handle_t lcd_panel_server_thread_handle;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
41
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
42 static cyg_interrupt lcd_panel_interrupt;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
43 static cyg_handle_t lcd_panel_interrupt_handle;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
44
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
45 static cyg_mbox lcd_panel_events_mbox;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
46 static cyg_handle_t lcd_panel_events_mbox_handle;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
47 static cyg_sem_t lcd_panel_sem;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
48
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
49 #define SYNCIO_TXFRMEN (1<<14)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
50 #define SYNCIO_FRAMELEN(n) (n<<8)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
51 #define ADC_START (1<<7)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
52 #define ADC_CHAN(n) (n<<4)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
53 #define ADC_UNIPOLAR (1<<3)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
54 #define ADC_SINGLE (1<<2)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
55 #define ADC_EXT_CLOCK (3<<0)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
56 #define TOUCH_CTL KBD_PORT
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
57
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
58 // FUNCTIONS
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
59
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
60 static cyg_uint32
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
61 adc_sample(int chan)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
62 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
63 cyg_uint32 val;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
64 *(volatile cyg_uint32 *)SYNCIO = SYNCIO_TXFRMEN | SYNCIO_FRAMELEN(24) |
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
65 ADC_START | ADC_CHAN(chan) | ADC_UNIPOLAR | ADC_SINGLE | ADC_EXT_CLOCK;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
66 while (*(volatile cyg_uint32 *)SYSFLG1 & SYSFLG1_SSIBUSY) ;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
67 val = *(volatile cyg_uint32 *)SYNCIO;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
68 return (val & 0xFFFF);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
69 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
70
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
71 static void
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
72 panel_delay(void)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
73 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
74 volatile int i;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
75 for (i = 0; i < 800; i++) ;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
76 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
77
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
78 // This ISR is called when the touch panel interrupt occurs
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
79 static int
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
80 lcd_panel_isr(cyg_vector_t vector, cyg_addrword_t data, HAL_SavedRegisters *regs)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
81 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
82 cyg_drv_interrupt_mask(CYGNUM_HAL_INTERRUPT_EINT2);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
83 return (CYG_ISR_HANDLED|CYG_ISR_CALL_DSR); // Run the DSR
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
84 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
85
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
86 // This DSR starts up the touch panel [logical] processing
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
87 static void
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
88 lcd_panel_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
89 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
90 // Tell the panel processing thread to give it a shot
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
91 cyg_semaphore_post(&lcd_panel_sem);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
92 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
93
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
94 // Assumption: if the keypress vanishes for 5*20 ms, it probably isn't there
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
95 #define LCD_PANEL_TIMEOUT 5
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
96
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
97 static __inline__ int
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
98 abs(int x)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
99 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
100 if (x < 0) return -x;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
101 return x;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
102 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
103
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
104 static void
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
105 lcd_panel_server(cyg_addrword_t p)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
106 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
107 int iX, iY, newX, newY, diffX, diffY, timeout, samples;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
108 cyg_uint32 event;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
109 diag_printf("LCD panel server here\n");
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
110 while (TRUE) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
111 cyg_semaphore_wait(&lcd_panel_sem);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
112 samples = 0; iX = 0; iY = 0;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
113 // Wait for press to go away (no drag support)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
114 timeout = 0;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
115 while (timeout < LCD_PANEL_TIMEOUT) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
116 *(volatile cyg_uint8 *)TOUCH_CTL = 0x00; // Disable drives
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
117 while (*(volatile cyg_uint32 *)INTSR1 & INTSR1_EINT2) ;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
118 *(volatile cyg_uint8 *)TOUCH_CTL = 0x70; // Idle state (so interrupt works)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
119 cyg_thread_delay(2); // Wait 20 ms
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
120 if (*(volatile cyg_uint32 *)INTSR1 & INTSR1_EINT2) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
121 // Still pressed
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
122 // Drive TSPY, ground TSMY, and disconnect TSPX and TSMX
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
123 *(volatile cyg_uint8 *)TOUCH_CTL = 0x50;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
124 panel_delay();
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
125 newY = adc_sample(2);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
126 // Drive TSPX, ground TSMX, and disconnect TSPY and TSMY
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
127 *(volatile cyg_uint8 *)TOUCH_CTL = 0xA0;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
128 panel_delay();
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
129 newX = adc_sample(7);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
130 #if 0
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
131 diag_printf("timeout: %d, ISR: %x, newX: %d, newY: %d\n",
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
132 timeout, *(volatile cyg_uint32 *)INTSR1, newX, newY);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
133 #endif
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
134 // See if this sample makes any sense
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
135 if (samples) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
136 diffX = abs(iX/samples - newX);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
137 diffY = abs(iY/samples - newY);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
138 if ((diffX <= ((iX/samples)/4)) &&
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
139 (diffY <= ((iY/samples)/4))) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
140 samples++;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
141 iX += newX;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
142 iY += newY;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
143 } else {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
144 #if 0
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
145 diag_printf("Discard - newX: %d, X: %d, newY: %d, Y: %d\n",
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
146 newX, iX/samples, newY, iY/samples);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
147 #endif
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
148 break;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
149 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
150 } else {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
151 iX = newX;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
152 iY = newY;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
153 samples = 1;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
154 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
155 timeout = 0;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
156 } else {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
157 timeout++;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
158 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
159 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
160 if (samples) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
161 // Send event to user level
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
162 event = (iX/samples)<<16 | (iY/samples);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
163 if (!cyg_mbox_tryput(lcd_panel_events_mbox_handle, (void *)event)) {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
164 diag_printf("LCD event lost: %x\n", event);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
165 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
166 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
167 *(volatile cyg_uint8 *)TOUCH_CTL = 0x00; // Disable drives
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
168 while (*(volatile cyg_uint32 *)INTSR1 & INTSR1_EINT2) ;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
169 *(volatile cyg_uint8 *)TOUCH_CTL = 0x70; // Idle state (so interrupt works)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
170 cyg_thread_delay(10);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
171 cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT2);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
172 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
173 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
174
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
175 static void
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
176 lcd_panel_init(void)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
177 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
178 // Enable touch panel
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
179 *(volatile cyg_uint8 *)PEDR |= 0x04;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
180
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
181 // Idle state (so interrupt works)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
182 *(volatile cyg_uint8 *)TOUCH_CTL = 0x70;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
183
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
184 // Enable ADC machinery
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
185 *(volatile cyg_uint32 *)SYSCON1 |= SYSCON1_ADC_CLOCK_128kHZ;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
186
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
187 cyg_drv_interrupt_create(CYGNUM_HAL_INTERRUPT_EINT2,
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
188 99, // Priority - what goes here?
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
189 0, // Data item passed to interrupt handler
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
190 lcd_panel_isr,
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
191 lcd_panel_dsr,
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
192 &lcd_panel_interrupt_handle,
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
193 &lcd_panel_interrupt);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
194 cyg_drv_interrupt_attach(lcd_panel_interrupt_handle);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
195 cyg_drv_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_EINT2);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
196 cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT2);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
197 // Set up the mbox for panel data
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
198 cyg_mbox_create(&lcd_panel_events_mbox_handle, &lcd_panel_events_mbox);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
199 // This semaphore is set when there is a touch
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
200 cyg_semaphore_init(&lcd_panel_sem, 0);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
201 // Create a thread whose job it is to de-bounce the keyboard and
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
202 // actually process the input, turning it into a series of events
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
203 cyg_thread_create(10, // Priority - just a number
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
204 lcd_panel_server, // entry
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
205 0, // initial parameter
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
206 "LCD_PANEL_server", // Name
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
207 &lcd_panel_server_stack[0], // Stack
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
208 STACK_SIZE, // Size
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
209 &lcd_panel_server_thread_handle, // Handle
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
210 &lcd_panel_server_thread_data // Thread data structure
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
211 );
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
212 cyg_thread_resume(lcd_panel_server_thread_handle); // Start it
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST
jlarmour
parents:
diff changeset
213 }