From 82a994e1ab60e3c7222a7b3b1cb77a4b6fccfb4e Mon Sep 17 00:00:00 2001
From: "(no author)" <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>
Date: Sun, 10 Sep 2006 14:12:58 +0000
Subject: add PLL inhibit support code for PICC

git-svn-id: https://svn.openpcd.org:2342/trunk@168 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
---
 openpcd/firmware/Makefile                 |  2 +-
 openpcd/firmware/src/picc/main_openpicc.c | 44 ++++++++++---------------------
 openpcd/firmware/src/picc/pll.c           | 24 +++++++++++++++++
 openpcd/firmware/src/picc/pll.h           |  8 ++++++
 4 files changed, 47 insertions(+), 31 deletions(-)
 create mode 100644 openpcd/firmware/src/picc/pll.c
 create mode 100644 openpcd/firmware/src/picc/pll.h

(limited to 'openpcd')

diff --git a/openpcd/firmware/Makefile b/openpcd/firmware/Makefile
index 4bb05dc..e700012 100644
--- a/openpcd/firmware/Makefile
+++ b/openpcd/firmware/Makefile
@@ -99,7 +99,7 @@ else
 # PICC support code
 SRCARM += src/picc/tc_fdt.c src/picc/ssc_picc.c src/picc/adc.c \
 	  src/picc/decoder.c src/picc/decoder_miller.c \
-	  src/picc/decoder_nrzl.c src/picc/poti.c
+	  src/picc/decoder_nrzl.c src/picc/poti.c src/picc/pll.c
 # finally, the actual main application 
 SRCARM += src/picc/$(TARGET).c 
 endif
diff --git a/openpcd/firmware/src/picc/main_openpicc.c b/openpcd/firmware/src/picc/main_openpicc.c
index b8b51a0..3b3ba2a 100644
--- a/openpcd/firmware/src/picc/main_openpicc.c
+++ b/openpcd/firmware/src/picc/main_openpicc.c
@@ -8,13 +8,15 @@
 #include <os/usb_handler.h>
 #include "../openpcd.h"
 #include <os/main.h>
+#include <picc/pll.h>
 
 void _init_func(void)
 {
-	//tc_cdiv_init();
+	pll_init();
+	poti_init();
+	tc_cdiv_init();
 	//adc_init();
 	//ssc_rx_init();
-	//poti_init();
 	// ssc_tx_init();
 }
 
@@ -22,6 +24,7 @@ int _main_dbgu(char key)
 {
 	unsigned char value;
 	static u_int8_t poti = 64;
+	static u_int8_t pll_inh = 1;
 
 	DEBUGPCRF("main_dbgu");
 
@@ -39,36 +42,17 @@ int _main_dbgu(char key)
 		DEBUGPCRF("Poti: %u", poti);
 		break;
 	case 'e':
-		poti_init();
-		break;
-#if 0
-	case '4':
-		AT91F_DBGU_Printk("Testing RC632 : ");
-		if (rc632_test(RAH) == 0)
-			AT91F_DBGU_Printk("SUCCESS!\n\r");
-		else
-			AT91F_DBGU_Printk("ERROR!\n\r");
-			
-		break;
-	case '5':
-		rc632_reg_read(RAH, RC632_REG_RX_WAIT, &value);
-		DEBUGPCR("Reading RC632 Reg RxWait: 0x%02xr", value);
-
-		break;
-	case '6':
-		DEBUGPCR("Writing RC632 Reg RxWait: 0x55");
-		rc632_reg_write(RAH, RC632_REG_RX_WAIT, 0x55);
-		break;
-	case '7':
-		rc632_dump();
-		break;
-	case 'P':
-		rc632_power(1);
+		poti_comp_carr(poti);
+		DEBUGPCRF("Poti: %u", poti);
 		break;
 	case 'p':
-		rc632_power(0);
+		pll_inh++;
+		pll_inh &= 0x01;
+		pll_inhibit(pll_inh);
+		DEBUGPCRF("PLL Inhibit: %u\n", pll_inh);
+		break;
+	case '>':
 		break;
-#endif
 	}
 
 	return -EINVAL;
@@ -82,5 +66,5 @@ void _main_func(void)
 	/* next we deal with incoming reqyests from USB EP1 (OUT) */
 	usb_in_process();
 
-	ssc_rx_unthrottle();
+	//ssc_rx_unthrottle();
 }
diff --git a/openpcd/firmware/src/picc/pll.c b/openpcd/firmware/src/picc/pll.c
new file mode 100644
index 0000000..c554ea6
--- /dev/null
+++ b/openpcd/firmware/src/picc/pll.c
@@ -0,0 +1,24 @@
+
+#include <sys/types.h>
+#include <lib_AT91SAM7.h>
+#include "../openpcd.h"
+
+void pll_inhibit(int inhibit)
+{
+	if (inhibit)
+		AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT);
+	else
+		AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT);
+}
+
+int pll_is_locked(void)
+{
+	return AT91F_PIO_IsInputSet(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_LOCK);
+}
+
+void pll_init(void)
+{
+	AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_INHIBIT);
+	AT91F_PIO_CfgInput(AT91C_BASE_PIOA, OPENPICC_PIO_PLL_LOCK);
+	pll_inhibit(0);
+}
diff --git a/openpcd/firmware/src/picc/pll.h b/openpcd/firmware/src/picc/pll.h
new file mode 100644
index 0000000..fc00105
--- /dev/null
+++ b/openpcd/firmware/src/picc/pll.h
@@ -0,0 +1,8 @@
+#ifndef _PLL_H
+#define _PLL_H
+
+extern int pll_is_locked(void);
+extern void pll_inhibit(int inhibit);
+extern void pll_init(void);
+
+#endif
-- 
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