chore: omit unused source file

Makefile

@@ -121,7 +121,7 @@ CSRC = $(STARTUPSRC) \
        $(STREAMSSRC) \
        $(SHELLSRC) \
        usbcfg.c \
-       main.c si5351.c si5351_low.c tlv320aic3204.c dsp.c plot.c ui.c ili9341.c numfont20x24.c Font5x7.c flash.c adc.c
+       main.c si5351.c tlv320aic3204.c dsp.c plot.c ui.c ili9341.c numfont20x24.c Font5x7.c flash.c adc.c
 
 #       $(TESTSRC) \
 

si5351_low.c

@@ -1,128 +0,0 @@
-/*
- * Copyright (c) 2014-2015, TAKAHASHI Tomohiro (TTRFTECH) edy555@gmail.com
- * All rights reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * The software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-#include "hal.h"
-#include "si5351.h"
-
-#define SI5351_I2C_ADDR   	(0x60<<1)
-
-static void
-rcc_gpio_init(void)
-{
-    // Reset AHB,APB1,APB2
-    RCC->AHBRSTR |= 0xffffffff;
-    RCC->AHBRSTR = 0;
-    RCC->APB1RSTR |= 0xffffffff;
-    RCC->APB1RSTR = 0;
-    RCC->APB2RSTR |= 0xffffffff;
-    RCC->APB2RSTR = 0;
-
-    RCC->APB1ENR |= RCC_APB1ENR_PWREN | RCC_APB1ENR_I2C1EN;
-    RCC->AHBENR |= RCC_AHBENR_GPIOBEN;
-    RCC->CFGR3 |= RCC_CFGR3_I2C1SW_HSI;
-
-    // STM32F072
-    GPIOB->AFRH = 0x55550011;  // PB8,PB9 Alternate Function 1
-    // STM32F303
-    //GPIOB->AFRH = 0x55550044;  // PB8,PB9 Alternate Function 4
-    GPIOB->OTYPER |= 0x0300;   // PB8,PB9 Open drain
-    GPIOB->MODER |= 0x000A0000;//
-    GPIOB->OSPEEDR |= 0x00050000;//
-}
-
-static void
-i2c_init(I2C_TypeDef* i2c)
-{
-	// Disable the I2Cx peripheral
-	i2c->CR1 &= ~I2C_CR1_PE;
-	while (i2c->CR1 & I2C_CR1_PE);
-
-    // 100kHz @ 8MHz
-    i2c->TIMINGR = 0x10420F13;
-
-	// Use 7-bit addresses
-	i2c->CR2 &=~ I2C_CR2_ADD10;
-
-	// Enable the analog filter
-	i2c->CR1 &= ~I2C_CR1_ANFOFF;
-
-	// Disable NOSTRETCH
-	i2c->CR1 |= I2C_CR1_NOSTRETCH;
-
-	// Enable I2Cx peripheral clock.
-	// Select APB1 as clock source
-	if (i2c == I2C1) {
-		RCC->APB1ENR |= RCC_APB1ENR_I2C1EN;
-	} else if (i2c == I2C2) {
-		RCC->APB1ENR |= RCC_APB1ENR_I2C2EN;
-	}
-
-	// Enable the I2Cx peripheral
-	i2c->CR1 |= I2C_CR1_PE;
-}
-
-static void
-i2cSendByte(I2C_TypeDef* i2c, uint8_t addr, const uint8_t *buf, uint8_t len)
-{
-	i2c->CR2 = (I2C_CR2_SADD & addr) 	// Set the slave address
-      | (I2C_CR2_NBYTES & (len << 16))	// Send one byte
-      | I2C_CR2_START 					// Generate start condition
-      | I2C_CR2_AUTOEND;				// Generate stop condition after sent
-
-	// Send the data
-    while (len-- > 0) {
-      while (!(i2c->ISR & I2C_ISR_TXIS));
-      i2c->TXDR = (I2C_TXDR_TXDATA & *buf++);
-    }
-}
-
-// register addr, length, data, ...
-const uint8_t si5351_configs_low[] = {
-  2, SI5351_REG_3_OUTPUT_ENABLE_CONTROL, 0xff,
-  4, SI5351_REG_16_CLK0_CONTROL, SI5351_CLK_POWERDOWN, SI5351_CLK_POWERDOWN, SI5351_CLK_POWERDOWN,
-  2, SI5351_REG_183_CRYSTAL_LOAD, SI5351_CRYSTAL_LOAD_8PF,
-  // setup PLL (26MHz * 32 = 832MHz : 32/2-2=14)
-  9, SI5351_REG_26_PLL_A, /*P3*/0, 1, /*P1*/0, 14, 0, /*P3/P2*/0, 0, 0,
-  // RESET PLL
-  2, SI5351_REG_177_PLL_RESET, SI5351_PLL_RESET_A | SI5351_PLL_RESET_B,
-  // setup multisynth (832MHz/8MHz=104,104/2-2=50)
-  9, SI5351_REG_58_MULTISYNTH2, /*P3*/0, 1, /*P1*/0, 50, 0, /*P2|P3*/0, 0, 0,
-  2, SI5351_REG_18_CLK2_CONTROL, SI5351_CLK_DRIVE_STRENGTH_2MA | SI5351_CLK_INPUT_MULTISYNTH_N | SI5351_CLK_INTEGER_MODE,
-  2, SI5351_REG_3_OUTPUT_ENABLE_CONTROL, 0,
-  0 // sentinel
-};
-
-void
-si5351_init_bulk(void)
-{
-  const uint8_t *p = si5351_configs_low;
-  while (*p) {
-    uint8_t len = *p++;
-    i2cSendByte(I2C1, SI5351_I2C_ADDR, p, len);
-    p += len;
-  }
-}
-
-void
-si5351_setup(void)
-{
-  rcc_gpio_init();
-  i2c_init(I2C1);
-  si5351_init_bulk();
-}