a try to add support of FreeRTOS riscV-64 (k210 cpu). first step

1 files changed, 190 insertions, 0 deletions

diff --git a/libiot/spiffs/k210_spiffs.c b/libiot/spiffs/k210_spiffs.c
new file mode 100644
index 0000000..f87a60c
--- /dev/null
+++ b/libiot/spiffs/k210_spiffs.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2015 - 2018, IBEROXARXA SERVICIOS INTEGRALES, S.L.
+ * Copyright (C) 2015 - 2018, Jaume Olivé Petrus (jolive@whitecatboard.org)
+ *
+ * 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.
+ *     * Neither the name of the <organization> nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *     * The WHITECAT logotype cannot be changed, you can remove it, but you
+ *       cannot change it in any way. The WHITECAT logotype is:
+ *
+ *          /\       /\
+ *         /  \_____/  \
+ *        /_____________\
+ *        W H I T E C A T
+ *
+ *     * Redistributions in binary form must retain all copyright notices printed
+ *       to any local or remote output device. This include any reference to
+ *       Lua RTOS, whitecatboard.org, Lua, and other copyright notices that may
+ *       appear in the future.
+ *
+ * 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 <COPYRIGHT HOLDER> 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.
+ *
+ * Lua RTOS, spiffs port functions
+ *
+ */
+
+#include "k210_spiffs.h"
+//#include "esp_attr.h"
+#include "spiffs.h"
+#include "../hal/w25qxx.h"
+
+#include <stdlib.h>
+
+#include "../sys/mutex.h"
+
+#include <devices.h>
+//#include <task.h>
+
+
+#define SPI_FLASH_ALIGN 0
+
+
+
+
+static handle_t spi3 = 0;
+
+
+s32_t k210_spi_flash_init() {
+    spi3 = io_open("/dev/spi3");
+    if (!spi3) {
+        return 0;
+    }
+    w25qxx_init(spi3);
+
+    return 1;
+}
+
+void spiffs_lock(spiffs *fs) {
+    mtx_lock(fs->user_data);
+}
+
+void spiffs_unlock(spiffs *fs) {
+    mtx_unlock(fs->user_data);
+}
+
+s32_t k210_spi_flash_read(u32_t addr, u32_t size, u8_t *dst) {
+#if SPI_FLASH_ALIGN
+    u32_t aaddr;
+    u8_t *buff = NULL;
+    u8_t *abuff = NULL;
+    u32_t asize;
+
+    asize = size;
+
+    // Align address to 4 byte
+    aaddr = (addr + (4 - 1)) & (u32_t) -4;
+    if (aaddr != addr) {
+        aaddr -= 4;
+        asize += (addr - aaddr);
+    }
+
+    // Align size to 4 byte
+    asize = (asize + (4 - 1)) & (u32_t) -4;
+
+    if ((aaddr != addr) || (asize != size)) {
+        // Align buffer
+        buff = malloc(asize + 4);
+        if (!buff) {
+            return SPIFFS_ERR_INTERNAL;
+        }
+
+        abuff = (u8_t *) (((ptrdiff_t) buff + (4 - 1)) & (u32_t) -4);
+
+        if (w25qxx_read_data(aaddr, (void *) abuff, asize) != W25QXX_OK) {
+            free(buff);
+            return SPIFFS_ERR_INTERNAL;
+        }
+
+        memcpy(dst, abuff + (addr - aaddr), size);
+
+        free(buff);
+    } else {
+#endif
+        if (w25qxx_read_data(addr, (void *) dst, size) != W25QXX_OK) {
+            return SPIFFS_ERR_INTERNAL;
+        }
+#if SPI_FLASH_ALIGN
+    }
+#endif
+    return SPIFFS_OK;
+}
+
+s32_t k210_spi_flash_write(u32_t addr, u32_t size, const u8_t *src) {
+#if SPI_FLASH_ALIGN
+    u32_t aaddr;
+    u8_t *buff = NULL;
+    u8_t *abuff = NULL;
+    u32_t asize;
+
+    asize = size;
+
+    // Align address to 4 byte
+    aaddr = (addr + (4 - 1)) & -4;
+    if (aaddr != addr) {
+        aaddr -= 4;
+        asize += (addr - aaddr);
+    }
+
+    // Align size to 4 byte
+    asize = (asize + (4 - 1)) & -4;
+
+    if ((aaddr != addr) || (asize != size)) {
+        // Align buffer
+        buff = malloc(asize + 4);
+        if (!buff) {
+            return SPIFFS_ERR_INTERNAL;
+        }
+
+        abuff = (u8_t *) (((ptrdiff_t) buff + (4 - 1)) & -4);
+
+        if (w25qxx_read_data(aaddr, (void *) abuff, asize) != W25QXX_OK) {
+            free(buff);
+            return SPIFFS_ERR_INTERNAL;
+        }
+
+        memcpy(abuff + (addr - aaddr), src, size);
+
+        if (w25qxx_write_data(aaddr, (uint8_t *) abuff, asize) != W25QXX_OK) {
+            free(buff);
+            return SPIFFS_ERR_INTERNAL;
+        }
+
+        free(buff);
+    } else {
+#endif
+        if (w25qxx_write_data(addr, (uint8_t *) src, size) != W25QXX_OK) {
+            return SPIFFS_ERR_INTERNAL;
+        }
+#if SPI_FLASH_ALIGN
+    }
+#endif
+    return SPIFFS_OK;
+}
+
+s32_t k210_spi_flash_erase(u32_t addr, u32_t size) {
+    if (w25qxx_sector_erase(addr >> 12) != W25QXX_OK) {
+        return SPIFFS_ERR_INTERNAL;
+    }
+
+    return SPIFFS_OK;
+}