Add LED logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@713 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -60,9 +60,9 @@
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#define LED_STACKCREATED 3
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#define LED_IDLE 4
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#define LED_INIRQ 5
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#define LED_ASSERTION 6
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#define LED_SIGNAL 6
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#define LED_PANIC 7
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#define LED_ASSERTION 7
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#define LED_PANIC 8
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/****************************************************************************
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* Public Functions
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@ -54,14 +54,142 @@
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* Definitions
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****************************************************************************/
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/* Port G: Anode Bit Assignments (1 enables) */
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#define Z8_PORTG_ANODE_MASK 0x7f
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#define Z8_PORTG_ANODE_ROW0 0x01
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#define Z8_PORTG_ANODE_ROW1 0x02
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#define Z8_PORTG_ANODE_ROW2 0x04
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#define Z8_PORTG_ANODE_ROW3 0x08
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#define Z8_PORTG_ANODE_ROW4 0x10
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#define Z8_PORTG_ANODE_ROW5 0x20
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#define Z8_PORTG_ANODE_ROW6 0x40
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/* Port E: Cathode Bit Assignements (0 enables) */
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#define Z8_PORTE_CATHODE_MASK 0x1f
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#define Z8_PORTE_CATHODE_COLUMN0 0x01
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#define Z8_PORTE_CATHODE_COLUMN1 0x02
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#define Z8_PORTE_CATHODE_COLUMN2 0x04
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#define Z8_PORTE_CATHODE_COLUMN3 0x08
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#define Z8_PORTE_CATHODE_COLUMN4 0x10
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/* Port E: LED Addressing */
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#define Z8_PORTE_LED_MASK 0xe0
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#define Z8_PORTE_LED_D3 0x20
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#define Z8_PORTE_LED_D4 0x40
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#define Z8_PORTE_LED_D1 0x80
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/* Port G: LED Addressing */
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#define Z8_PORTG_LED_MASK 0x80
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#define Z8_PORTG_LED_D2 0x80
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/* Special values for display */
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#define LED_ALLON { Z8_PORTG_ANODE_MASK, 0x00 }
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#define LED_ALLOFF { 0x00, Z8_PORTE_CATHODE_MASK }
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#define LED_LEVEL1 { 0x10, 0x00 }
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#define LED_LEVEL2 { 0x08, 0x00 }
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#define LED_LEVEL3 { 0x04, 0x00 }
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#define LED_LEVEL4 { 0x02, 0x00 }
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#define LED_LEVEL1I { 0x14, 0x00 }
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#define LED_LEVEL2I { 0x0c, 0x00 }
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#define LED_LEVEL3I { 0x04, 0x00 }
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#define LED_LEVEL4I { 0x06, 0x00 }
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#define LED_LEVEL1S { 0x11, 0x00 }
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#define LED_LEVEL2S { 0x09, 0x00 }
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#define LED_LEVEL3S { 0x05, 0x00 }
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#define LED_LEVEL4S { 0x03, 0x00 }
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#define LED_LEVEL1A { 0x10, 0x11 }
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#define LED_LEVEL2A { 0x08, 0x11 }
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#define LED_LEVEL3A { 0x04, 0x11 }
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#define LED_LEVEL4A { 0x02, 0x11 }
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#define LED_SNAKEEYES { 0x06, 0x11 }
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct z8_ledbits_s
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{
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ubyte anode;
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ubyte cathode;
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};
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct z8_ledbits_s g_ledarray[10][4] =
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{
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{ LED_ALLON, LED_ALLON, LED_ALLON, LED_ALLON },
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{ LED_ALLOFF, LED_ALLOFF, LED_ALLOFF, LED_ALLOFF },
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{ LED_LEVEL1, LED_ALLOFF, LED_ALLOFF, LED_ALLOFF },
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{ LED_LEVEL1, LED_LEVEL2, LED_ALLOFF, LED_ALLOFF },
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{ LED_LEVEL1, LED_LEVEL2, LED_LEVEL3, LED_ALLOFF },
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{ LED_LEVEL1, LED_LEVEL2, LED_LEVEL3, LED_LEVEL4 },
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{ LED_LEVEL1I, LED_LEVEL2I, LED_LEVEL3I, LED_LEVEL4I },
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{ LED_LEVEL1S, LED_LEVEL2S, LED_LEVEL3S, LED_LEVEL4S },
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{ LED_LEVEL1A, LED_LEVEL2A, LED_LEVEL3A, LED_LEVEL4A },
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{ LED_SNAKEEYES, LED_SNAKEEYES, LED_SNAKEEYES, LED_SNAKEEYES }
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: z8_putled134
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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static void z8_putled134(FAR const struct z8_ledbits_s *bits, ubyte addr)
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{
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ubyte porte;
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porte = bits->cathode;
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putreg8(porte, PEOD); /* Load porte data */
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putreg8(bits->anode, PGOD); /* Load portg data */
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porte |= addr;
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putreg8(porte, PEOD); /* Latch data */
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}
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#endif
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/****************************************************************************
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* Name: z8_lputed2
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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static void z8_putled2(FAR const struct z8_ledbits_s *bits, ubyte addr)
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{
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ubyte portg;
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putreg8(bits->cathode, PEOD); /* Load porte data */
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portg = bits->anode;
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putreg8(porte, PGOD); /* Load portg data */
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portg |= addr;
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putreg8(portg, PGOD); /* Latch data */
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}
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#endif
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/****************************************************************************
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* Name: z8_putarray
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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static void z8_putarray(FAR const struct z8_ledarray_s *array)
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{
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z8_putled134(&array->led[0], Z8_PORTE_LED_D1);
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z8_putled2(&array->led[1], Z8_PORTG_LED_D2);
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z8_putled134(&array->led[2], Z8_PORTE_LED_D3);
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z8_putled134(&array->led[3], Z8_PORTE_LED_D4);
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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@ -73,6 +201,20 @@
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#ifdef CONFIG_ARCH_LEDS
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void up_ledinit(void)
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{
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putreg8(0x00, PEAF); /* PE Alt func = Port */
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putreg8(0x00, PGAF); /* PG Alt func = Port */
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putreg8(0x00, PEOC); /* PE Out Ctrl = push-pull */
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putreg8(0x00, PGOC); /* PG Out Ctrl = push-pull */
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/*putreg8(0x00, PEDD); * PA Data Dir = output */
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putreg8(0x01, PEADDR); /* PA Data Dir = output */
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putreg8(0x00, PECTL); /* OUTPUT */
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/*putreg8(0x00, PGDD); * PA Data Dir = output */
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putreg8(0x01, PGADDR); /* PA Data Dir = output */
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putreg8(0x00, PGCTL); /* OUTPUT */
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z8_putarray(&g_ledarray[0][0]);
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}
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/****************************************************************************
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@ -81,6 +223,10 @@ void up_ledinit(void)
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void up_ledon(int led)
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{
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if ((unsigned)led <= 8)
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{
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z8_putarray(&g_ledarray[led+1][0]);
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}
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}
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/****************************************************************************
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@ -89,5 +235,9 @@ void up_ledon(int led)
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void up_ledoff(int led)
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{
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if (led >= 1)
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{
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up_ledon(led-1);
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}
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}
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#endif /* CONFIG_ARCH_LEDS */
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