Diff: u8glibARM/u8g_com_msp430_hw_spi.c

Revision:

2:6cd3b0947188

Parent:

1:0e75de2a5d21

Child:

3:4cd9171ba989

--- a/u8glibARM/u8g_com_msp430_hw_spi.c	Mon Jun 13 02:21:11 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,222 +0,0 @@
-/*
-  
-  u8g_com_msp430_hw_spi.c
-
-  Universal 8bit Graphics Library
-  
-  Copyright (c) 2012, olikraus@gmail.com
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without modification, 
-  are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright notice, this list 
-    of conditions and the following disclaimer.
-    
-  * Redistributions in binary form must reproduce the above copyright notice, this 
-    list of conditions and the following disclaimer in the documentation and/or other 
-    materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
-  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
-  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
-  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
-  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
-  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
-  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
-  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
-  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
-  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
-  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
- 
-*/ 
- 
-#include "u8g.h"
-
-#if defined(__MSP430__)
-#define U8G_MSP430_HW_SPI
-#endif
-
-#if defined(U8G_MSP430_HW_SPI)
-
-#include <msp430.h>
-
-#ifndef F_CPU
-#error "Please specifiy actual master clock using F_CPU in HZ"
-#endif
-#ifndef F_SPI
-#define F_SPI  1000000UL
-#endif
-
-#define U8G_USE_USCIA0	1
-#define U8G_USE_USCIB0	2
-#define U8G_USE_USCIA1	3
-#define U8G_USE_USCIB1	4
-#define U8G_USE_USCIA2	5
-#define U8G_USE_USCIB2	6
-#define U8G_USE_USCIA3	7
-#define U8G_USE_USCIB3	8
-
-#ifndef U8G_USE_USCI
-#define U8G_USE_USCI	U8G_USE_USCIB0
-#endif
-
-#if U8G_USE_USCI == 1
-#define UCIFG	UCA0IFG
-#define UCTXBUF UCA0TXBUF
-#define UCSTAT  UCA0STAT
-#define UCCTL0  UCA0CTL0
-#define UCCTL1  UCA0CTL1
-#define UCBR0   UCA0BR0
-#define UCBR1   UCA0BR1
-#elif U8G_USE_USCI == 2
-#define UCIFG	UCB0IFG
-#define UCTXBUF UCB0TXBUF
-#define UCSTAT  UCB0STAT
-#define UCCTL0  UCB0CTL0
-#define UCCTL1  UCB0CTL1
-#define UCBR0   UCB0BR0
-#define UCBR1   UCB0BR1
-#elif U8G_USE_USCI == 3
-#define UCIFG	UCA1IFG
-#define UCTXBUF UCA1TXBUF
-#define UCSTAT  UCA1STAT
-#define UCCTL0  UCA1CTL0
-#define UCCTL1  UCA1CTL1
-#define UCBR0   UCA1BR0
-#define UCBR1   UCA1BR1
-#elif U8G_USE_USCI == 4
-#define UCIFG	UCB1IFG
-#define UCTXBUF UCB1TXBUF
-#define UCSTAT  UCB1STAT
-#define UCCTL0  UCB1CTL0
-#define UCCTL1  UCB1CTL1
-#define UCBR0   UCB1BR0
-#define UCBR1   UCB1BR1
-#elif U8G_USE_USCI == 5
-#define UCIFG	UCA2IFG
-#define UCTXBUF UCA2TXBUF
-#define UCSTAT  UCA2STAT
-#define UCCTL0  UCA2CTL0
-#define UCCTL1  UCA2CTL1
-#define UCBR0   UCA2BR0
-#define UCBR1   UCA2BR1
-#elif U8G_USE_USCI == 6
-#define UCIFG	UCB2IFG
-#define UCTXBUF UCB2TXBUF
-#define UCSTAT  UCB2STAT
-#define UCCTL0  UCB2CTL0
-#define UCCTL1  UCB2CTL1
-#define UCBR0   UCB2BR0
-#define UCBR1   UCB2BR1
-#elif U8G_USE_USCI == 7
-#define UCIFG	UCA3IFG
-#define UCTXBUF UCA3TXBUF
-#define UCSTAT  UCA3STAT
-#define UCCTL0  UCA3CTL0
-#define UCCTL1  UCA3CTL1
-#define UCBR0   UCA3BR0
-#define UCBR1   UCA3BR1
-#elif U8G_USE_USCI == 8
-#define UCIFG	UCB3IFG
-#define UCTXBUF UCB3TXBUF
-#define UCSTAT  UCB3STAT
-#define UCCTL0  UCB3CTL0
-#define UCCTL1  UCB3CTL1
-#define UCBR0   UCB3BR0
-#define UCBR1   UCB3BR1
-#endif
-
-inline void u8g_msp430_spi_out(uint8_t data)
-{
-  while (!(UCIFG&UCTXIFG));
-  UCTXBUF = data;
-}
-
-uint8_t u8g_com_msp430_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
-{
-  switch(msg)
-  {
-    case U8G_COM_MSG_STOP:
-      break;
-    
-    case U8G_COM_MSG_INIT:
-	/*
- 	 * on MSP430 you need to set PSEL alternative function which
- 	 * may not be required on other MCU's - should be handled
- 	 * by a low level u8g_SetPinAlternate(pin_number)...
- 	 */
-      UCCTL1 |= UCSWRST;                      // **Put state machine in reset**
-      UCCTL0 |= UCMST|UCSYNC|UCCKPL|UCMSB;    // 3-pin, 8-bit SPI master Clock polarity high, MSB
-      UCCTL1 |= UCSSEL_2;                     // SMCLK
-      UCBR0 = (unsigned char)(F_CPU/F_SPI);   // 
-      UCBR1 = 0;                              //
-      UCCTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
-      u8g_SetPILevel(u8g, U8G_PI_CS, 1);
-      u8g_SetPILevel(u8g, U8G_PI_A0, 1);
-      u8g_SetPILevel(u8g, U8G_PI_RESET, 1);
-      u8g_SetPIOutput(u8g, U8G_PI_CS);
-      u8g_SetPIOutput(u8g, U8G_PI_A0);
-      u8g_SetPIOutput(u8g, U8G_PI_RESET);
-
-      break;
-    
-    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
-      u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
-      break;
-
-    case U8G_COM_MSG_CHIP_SELECT:
-      
-       u8g_SetPILevel(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
-      break;
-      
-    case U8G_COM_MSG_RESET:
-
-      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
-      break;
-    
-    case U8G_COM_MSG_WRITE_BYTE:
-      u8g_msp430_spi_out(arg_val);
-      while ((UCSTAT&UCBUSY));
-      break;
-    
-    case U8G_COM_MSG_WRITE_SEQ:
-      {
-        register uint8_t *ptr = arg_ptr;
-        while( arg_val > 0 )
-        {
-          u8g_msp430_spi_out(*ptr++);
-          arg_val--;
-        }
-        while ((UCSTAT&UCBUSY));
-      }
-      break;
-    case U8G_COM_MSG_WRITE_SEQ_P:
-      {
-        register uint8_t *ptr = arg_ptr;
-        while( arg_val > 0 )
-        {
-          u8g_msp430_spi_out(u8g_pgm_read(ptr));
-          ptr++;
-          arg_val--;
-        }
-        while ((UCSTAT&UCBUSY));
-      }
-      break;
-  }
-  return 1;
-}
-
-#else
-
-uint8_t u8g_com_msp430_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
-{
-  return 1;
-}
-
-#endif
-
-
-