Rename RISC-V_RV32_SiFive_HiFive1-FreedomStudio directory to RISC-V_RV32_SiFive_HiFiv...

[freertos] / FreeRTOS / Demo / RISC-V_RV32_SiFive_HiFive1_FreedomStudio / freedom-metal / src / drivers / sifive_trace.c

diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/drivers/sifive_trace.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/drivers/sifive_trace.c
deleted file mode 100644 (file)
index 8b63fbd..0000000
--- a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/drivers/sifive_trace.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* Copyright 2019 SiFive, Inc */
-/* SPDX-License-Identifier: Apache-2.0 */
-
-#include <metal/machine/platform.h>
-
-#ifdef METAL_SIFIVE_TRACE
-
-#include <metal/drivers/sifive_trace.h>
-#include <metal/machine.h>
-
-#define TRACE_REG(offset) (((unsigned long)base + (offset)))
-#define TRACE_REG8(offset)                                                     \
-    (__METAL_ACCESS_ONCE((__metal_io_u8 *)TRACE_REG(offset)))
-#define TRACE_REG16(offset)                                                    \
-    (__METAL_ACCESS_ONCE((__metal_io_u16 *)TRACE_REG(offset)))
-#define TRACE_REG32(offset)                                                    \
-    (__METAL_ACCESS_ONCE((__metal_io_u32 *)TRACE_REG(offset)))
-
-static void write_itc_uint32(struct metal_uart *trace, uint32_t data) {
-    long base = __metal_driver_sifive_trace_base(trace);
-
-    TRACE_REG32(METAL_SIFIVE_TRACE_ITCSTIMULUS) = data;
-}
-
-static void write_itc_uint16(struct metal_uart *trace, uint16_t data) {
-    long base = __metal_driver_sifive_trace_base(trace);
-
-    TRACE_REG16(METAL_SIFIVE_TRACE_ITCSTIMULUS + 2) = data;
-}
-
-static void write_itc_uint8(struct metal_uart *trace, uint8_t data) {
-    long base = __metal_driver_sifive_trace_base(trace);
-
-    TRACE_REG8(METAL_SIFIVE_TRACE_ITCSTIMULUS + 3) = data;
-}
-
-int __metal_driver_sifive_trace_putc(struct metal_uart *trace,
-                                     unsigned char c) {
-    static uint32_t buffer = 0;
-    static int bytes_in_buffer = 0;
-
-    buffer |= (((uint32_t)c) << (bytes_in_buffer * 8));
-
-    bytes_in_buffer += 1;
-
-    if (bytes_in_buffer >= 4) {
-        write_itc_uint32(trace, buffer);
-
-        buffer = 0;
-        bytes_in_buffer = 0;
-    } else if ((c == '\n') || (c == '\r')) { // partial write
-        switch (bytes_in_buffer) {
-        case 3: // do a full word write
-            write_itc_uint16(trace, (uint16_t)(buffer));
-            write_itc_uint8(trace, (uint8_t)(buffer >> 16));
-            break;
-        case 2: // do a 16 bit write
-            write_itc_uint16(trace, (uint16_t)buffer);
-            break;
-        case 1: // do a 1 byte write
-            write_itc_uint8(trace, (uint8_t)buffer);
-            break;
-        }
-
-        buffer = 0;
-        bytes_in_buffer = 0;
-    }
-
-    return (int)c;
-}
-
-void __metal_driver_sifive_trace_init(struct metal_uart *trace, int baud_rate) {
-    // The only init we do here is to make sure ITC 0 is enabled. It is up to
-    // Freedom Studio or other mechanisms to make sure tracing is enabled. If we
-    // try to enable tracing here, it will likely conflict with Freedom Studio,
-    // and they will just fight with each other.
-
-    long base = __metal_driver_sifive_trace_base(trace);
-
-    TRACE_REG32(METAL_SIFIVE_TRACE_ITCTRACEENABLE) |= 0x00000001;
-}
-
-__METAL_DEFINE_VTABLE(__metal_driver_vtable_sifive_trace) = {
-    .uart.init = __metal_driver_sifive_trace_init,
-    .uart.putc = __metal_driver_sifive_trace_putc,
-    .uart.getc = NULL,
-
-    .uart.get_baud_rate = NULL,
-    .uart.set_baud_rate = NULL,
-
-    .uart.controller_interrupt = NULL,
-    .uart.get_interrupt_id = NULL,
-};
-
-#endif /* METAL_SIFIVE_TRACE */