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SSP0: Extract SPI interface from W25Q80BV code.

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This commit is contained in:
Jared Boone
2014-11-10 09:58:49 -08:00
parent 79fd31d5d6
commit 21eb27c3f3
10 changed files with 170 additions and 63 deletions
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22
firmware/common/hackrf_core.c
View File

@ -23,6 +23,7 @@
#include "hackrf_core.h"
#include "si5351c.h"
#include "spi_ssp0.h"
#include "spi_ssp1.h"
#include "max2837.h"
#include "max2837_target.h"
@ -30,6 +31,8 @@
#include "max5864_target.h"
#include "rffc5071.h"
#include "rffc5071_spi.h"
#include "w25q80bv.h"
#include "w25q80bv_target.h"
#include "sgpio.h"
#include "rf_path.h"
#include <libopencm3/lpc43xx/i2c.h>
@ -96,6 +99,25 @@ rffc5071_driver_t rffc5072 = {
.spi = &rffc5071_spi,
};
const ssp0_config_t ssp0_config_w25q80bv = {
.data_bits = SSP_DATA_8BITS,
.serial_clock_rate = 2,
.clock_prescale_rate = 2,
.select = w25q80bv_target_spi_select,
.unselect = w25q80bv_target_spi_unselect,
};
spi_t spi_ssp0 = {
.config = &ssp0_config_w25q80bv,
.init = spi_ssp0_init,
.transfer = spi_ssp0_transfer,
.transfer_gather = spi_ssp0_transfer_gather,
};
w25q80bv_driver_t spi_flash = {
.spi = &spi_ssp0,
};
void delay(uint32_t duration)
{
uint32_t i;

5
firmware/common/hackrf_core.h
View File

@ -32,11 +32,13 @@ extern "C"
#include <stdint.h>
#include <stdbool.h>
#include "spi_ssp0.h"
#include "spi_ssp1.h"
#include "max2837.h"
#include "max5864.h"
#include "rffc5071.h"
#include "w25q80bv.h"
/* hardware identification number */
#define BOARD_ID_JELLYBEAN 0
@ -356,12 +358,15 @@ typedef enum {
void delay(uint32_t duration);
/* TODO: Hide these configurations */
extern const ssp0_config_t ssp0_config_w25q80bv;
extern const ssp1_config_t ssp1_config_max2837;
extern const ssp1_config_t ssp1_config_max5864;
extern max2837_driver_t max2837;
extern max5864_driver_t max5864;
extern rffc5071_driver_t rffc5072;
extern w25q80bv_driver_t spi_flash;
void cpu_clock_init(void);
void cpu_clock_pll1_low_speed(void);

59
firmware/common/w25q80bv_spi.c → firmware/common/spi_ssp0.c
View File

@ -21,7 +21,7 @@
* Boston, MA 02110-1301, USA.
*/
#include "w25q80bv_spi.h"
#include "spi_ssp0.h"
#include <libopencm3/lpc43xx/gpio.h>
#include <libopencm3/lpc43xx/rgu.h>
@ -30,27 +30,24 @@
#include "hackrf_core.h"
void w25q80bv_spi_init(spi_t* const spi, const void* const config) {
(void)spi;
(void)config;
const uint8_t serial_clock_rate = 2;
const uint8_t clock_prescale_rate = 2;
void spi_ssp0_init(spi_t* const spi, const void* const _config) {
/* Reset SPIFI peripheral before to Erase/Write SPIFI memory through SPI */
RESET_CTRL1 = RESET_CTRL1_SPIFI_RST;
/* initialize SSP0 */
const ssp0_config_t* const config = _config;
ssp_init(SSP0_NUM,
SSP_DATA_8BITS,
config->data_bits,
SSP_FRAME_SPI,
SSP_CPOL_0_CPHA_0,
serial_clock_rate,
clock_prescale_rate,
config->serial_clock_rate,
config->clock_prescale_rate,
SSP_MODE_NORMAL,
SSP_MASTER,
SSP_SLAVE_OUT_ENABLE);
spi->config = config;
/* Init SPIFI GPIO to Normal GPIO */
scu_pinmux(P3_3, (SCU_SSP_IO | SCU_CONF_FUNCTION2)); // P3_3 SPIFI_SCK => SSP0_SCK
scu_pinmux(P3_4, (SCU_GPIO_FAST | SCU_CONF_FUNCTION0)); // P3_4 SPIFI SPIFI_SIO3 IO3 => GPIO1[14]
@ -67,37 +64,41 @@ void w25q80bv_spi_init(spi_t* const spi, const void* const config) {
/* configure GPIO pins */
scu_pinmux(SCU_FLASH_HOLD, SCU_GPIO_FAST);
scu_pinmux(SCU_FLASH_WP, SCU_GPIO_FAST);
scu_pinmux(SCU_SSP0_SSEL, (SCU_GPIO_FAST | SCU_CONF_FUNCTION4));
/* drive SSEL, HOLD, and WP pins high */
gpio_set(PORT_FLASH, (PIN_FLASH_HOLD | PIN_FLASH_WP));
gpio_set(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
/* Set GPIO pins as outputs. */
GPIO1_DIR |= (PIN_FLASH_HOLD | PIN_FLASH_WP);
GPIO5_DIR |= PIN_SSP0_SSEL;
}
void w25q80bv_spi_transfer_gather(
spi_t* const spi,
const spi_transfer_t* const transfers,
const size_t transfer_count
) {
(void)spi;
void spi_ssp0_transfer_gather(spi_t* const spi, const spi_transfer_t* const transfers, const size_t count) {
const ssp0_config_t* const config = spi->config;
gpio_clear(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
for(size_t i=0; i<transfer_count; i++) {
uint8_t* const p = transfers[i].data;
for(size_t j=0; j<transfers[i].count; j++) {
p[j] = ssp_transfer(SSP0_NUM, p[j]);
const size_t word_size = (SSP0_CR0 & 0xf) + 1;
config->select(spi);
for(size_t i=0; i<count; i++) {
const size_t data_count = transfers[i].count;
if( word_size > 8 ) {
uint16_t* const data = transfers[i].data;
for(size_t j=0; j<data_count; j++) {
data[j] = ssp_transfer(SSP0_NUM, data[j]);
}
} else {
uint8_t* const data = transfers[i].data;
for(size_t j=0; j<data_count; j++) {
data[j] = ssp_transfer(SSP0_NUM, data[j]);
}
}
gpio_set(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
}
config->unselect(spi);
}
void w25q80bv_spi_transfer(spi_t* const spi, void* const data, const size_t count) {
void spi_ssp0_transfer(spi_t* const spi, void* const data, const size_t count) {
const spi_transfer_t transfers[] = {
{ data, count },
};
w25q80bv_spi_transfer_gather(spi, transfers, 1);
spi_ssp0_transfer_gather(spi, transfers, 1);
}

44
firmware/common/spi_ssp0.h Normal file
View File

@ -0,0 +1,44 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology
*
* This file is part of HackRF.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SPI_SSP0_H__
#define __SPI_SSP0_H__
#include <stdint.h>
#include <stddef.h>
#include "spi.h"
#include <libopencm3/lpc43xx/ssp.h>
typedef struct ssp0_config_t {
ssp_datasize_t data_bits;
uint8_t serial_clock_rate;
uint8_t clock_prescale_rate;
void (*select)(spi_t* const spi);
void (*unselect)(spi_t* const spi);
} ssp0_config_t;
void spi_ssp0_init(spi_t* const spi, const void* const config);
void spi_ssp0_transfer(spi_t* const spi, void* const data, const size_t count);
void spi_ssp0_transfer_gather(spi_t* const spi, const spi_transfer_t* const transfers, const size_t count);
#endif/*__SPI_SSP0_H__*/

19
firmware/common/w25q80bv.c
View File

@ -30,7 +30,9 @@
#include <stdint.h>
#include "w25q80bv.h"
#include "w25q80bv_spi.h"
#include "w25q80bv_target.h"
#include "hackrf_core.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
@ -49,7 +51,6 @@
* Set up pins for GPIO and SPI control, configure SSP0 peripheral for SPI.
* SSP0_SSEL is controlled by GPIO in order to handle various transfer lengths.
*/
void w25q80bv_setup(w25q80bv_driver_t* const drv)
{
uint8_t device_id;
@ -58,7 +59,8 @@ void w25q80bv_setup(w25q80bv_driver_t* const drv)
drv->num_pages = 4096U;
drv->num_bytes = 1048576U;
spi_init(drv->spi, NULL);
spi_init(drv->spi, &ssp0_config_w25q80bv);
w25q80bv_target_init(drv);
device_id = 0;
while(device_id != W25Q80BV_DEVICE_ID_RES)
@ -199,14 +201,3 @@ void w25q80bv_program(w25q80bv_driver_t* const drv, uint32_t addr, uint32_t len,
w25q80bv_page_program(drv, addr, len, data);
}
}
spi_t w25q80bv_spi = {
.config = NULL,
.init = w25q80bv_spi_init,
.transfer = w25q80bv_spi_transfer,
.transfer_gather = w25q80bv_spi_transfer_gather,
};
w25q80bv_driver_t spi_flash = {
.spi = &w25q80bv_spi,
};

2
firmware/common/w25q80bv.h
View File

@ -49,6 +49,4 @@ void w25q80bv_program(w25q80bv_driver_t* const drv, uint32_t addr, uint32_t len,
uint8_t w25q80bv_get_device_id(w25q80bv_driver_t* const drv);
void w25q80bv_get_unique_id(w25q80bv_driver_t* const drv, w25q80bv_unique_id_t* unique_id);
extern w25q80bv_driver_t spi_flash;
#endif//__W25Q80BV_H__

48
firmware/common/w25q80bv_target.c Normal file
View File

@ -0,0 +1,48 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of HackRF.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "w25q80bv_target.h"
#include <libopencm3/lpc43xx/scu.h>
#include <libopencm3/lpc43xx/gpio.h>
#include "hackrf_core.h"
/* TODO: Why is SSEL being controlled manually when SSP0 could do it
* automatically?
*/
void w25q80bv_target_init(w25q80bv_driver_t* const drv) {
(void)drv;
scu_pinmux(SCU_SSP0_SSEL, (SCU_GPIO_FAST | SCU_CONF_FUNCTION4));
gpio_set(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
GPIO5_DIR |= PIN_SSP0_SSEL;
}
void w25q80bv_target_spi_select(spi_t* const spi) {
(void)spi;
gpio_clear(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
}
void w25q80bv_target_spi_unselect(spi_t* const spi) {
(void)spi;
gpio_set(PORT_SSP0_SSEL, PIN_SSP0_SSEL);
}

19
firmware/common/w25q80bv_spi.h → firmware/common/w25q80bv_target.h
View File

@ -1,7 +1,5 @@
/*
* Copyright 2013 Michael Ossmann
* Copyright 2013 Benjamin Vernoux
* Copyright 2014 Jared Boone, ShareBrained Technology
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of HackRF.
*
@ -21,15 +19,14 @@
* Boston, MA 02110-1301, USA.
*/
#ifndef __W25Q80BV_SPI_H__
#define __W25Q80BV_SPI_H__
#include <stddef.h>
#ifndef __W25Q80BV_TARGET_H__
#define __W25Q80BV_TARGET_H__
#include "w25q80bv.h"
#include "spi.h"
void w25q80bv_spi_init(spi_t* const spi, const void* const config);
void w25q80bv_spi_transfer_gather(spi_t* const spi, const spi_transfer_t* const transfers, const size_t transfer_count);
void w25q80bv_spi_transfer(spi_t* const spi, void* const data, const size_t count);
void w25q80bv_target_init(w25q80bv_driver_t* const drv);
void w25q80bv_target_spi_select(spi_t* const spi);
void w25q80bv_target_spi_unselect(spi_t* const spi);
#endif/*__W25Q80BV_SPI_H__*/
#endif/*__W25Q80BV_TARGET_H__*/

3
firmware/hackrf-common.cmake
View File

@ -140,7 +140,10 @@ macro(DeclareTargets)
${PATH_HACKRF_FIRMWARE_COMMON}/max5864_target.c
${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071.c
${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071_spi.c
${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv.c
${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv_target.c
${PATH_HACKRF_FIRMWARE_COMMON}/spi.c
${PATH_HACKRF_FIRMWARE_COMMON}/spi_ssp0.c
${PATH_HACKRF_FIRMWARE_COMMON}/spi_ssp1.c
m0_bin.s
)

2
firmware/hackrf_usb/CMakeLists.txt
View File

@ -44,8 +44,6 @@ set(SRC_M4
usb_api_transceiver.c
"${PATH_HACKRF_FIRMWARE_COMMON}/usb_queue.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/fault_handler.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv_spi.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/cpld_jtag.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/xapp058/lenval.c"
"${PATH_HACKRF_FIRMWARE_COMMON}/xapp058/micro.c"