1 files changed, 0 insertions, 123 deletions
diff --git a/sw/eeprom.c b/sw/eeprom.c
deleted file mode 100644
index ce8aed7..0000000
--- a/sw/eeprom.c
+++ /dev/null
@@ -1,123 +0,0 @@
-#include <xc.h>
-
-#include <stdbool.h>
-#include <stdint.h>
-
-#include "sys.h"
-#include "types.h"
-#include "spi.h"
-
-#include "eeprom.h"
-
-// 16-byte page ('C' variant)
-#define PAGE_SIZE 16u
-
-// Commands
-enum {
-	CMD_READ = 0x03,
-	CMD_WRITE = 0x02,
-	CMD_WRITE_DISABLE = 0x04,
-	CMD_WRITE_ENABLE = 0x06,
-	CMD_READ_STATUS = 0x05,
-	CMD_WRITE_STATUS = 0x01,
-};
-
-// Status register masks
-enum {
-	STATUS_WIP = 0x1, // write in progress
-	STATUS_WEL = 0x2, // write enable latch
-	STATUS_BP0 = 0x4, // block protection 0
-	STATUS_BP1 = 0x8, // block protection 1
-};
-
-// Timing
-enum {
-	TIME_WRITE_CYCLE_MS = 5,
-};
-
-void
-eepromInit(void) {
-	EEPROM_CS_TRIS = OUT;
-	EEPROM_CS = 1;
-
-	eepromWriteDisable();
-}
-
-void
-eepromWriteEnable(void) {
-	EEPROM_CS = 0;
-	(void)spiTx(CMD_WRITE_ENABLE);
-	EEPROM_CS = 1;
-}
-
-void
-eepromWriteDisable(void) {
-	EEPROM_CS = 0;
-	(void)spiTx(CMD_WRITE_DISABLE);
-	EEPROM_CS = 1;
-}
-
-static bool
-isWriteInProgress(void) {
-	U8 status;
-
-	EEPROM_CS = 0;
-	(void)spiTx(CMD_READ_STATUS);
-	status = spiTx(0x00);
-	EEPROM_CS = 1;
-	return status & STATUS_WIP;
-}
-
-static void
-spiTxAddr(U16 addr) {
-	(void)spiTx(addr.hi);
-	(void)spiTx(addr.lo);
-}
-
-static bool
-isPageStart(U16 addr) {
-	return (addr.lo % PAGE_SIZE) == 0;
-}
-
-void
-eepromWrite(U16 addr, U8 *data, U8 size) {
-	while (isWriteInProgress()) {} // wait for previous write to finish
-
-	EEPROM_CS = 0; // pull chip-select low
-
-	(void)spiTx(CMD_WRITE);
-	spiTxAddr(addr);
-	while (size--) {
-		(void)spiTx(*data);
-		data++;
-		incU16(&addr);
-
-		// Check if write crosses page boundary
-		if (isPageStart(addr) && size) {
-			// Write current page to memory
-			EEPROM_CS = 1;
-			while (isWriteInProgress()) {}
-			EEPROM_CS = 0;
-
-			// Start next page
-			(void)spiTx(CMD_WRITE);
-			spiTxAddr(addr);
-		}
-	}
-
-	EEPROM_CS = 1; // release chip-select
-}
-
-void
-eepromRead(U16 addr, U8 *data, U8 size) {
-	EEPROM_CS = 0; // pull chip-select low
-
-	(void)spiTx(CMD_READ);
-	spiTxAddr(addr);
-	while (size--) {
-		*data = spiTx(0x00);
-		data++;
-	}
-
-	EEPROM_CS = 1; // release chip-select
-}