FreeCalypso > hg > freecalypso-tools
view target-utils/dspdump/dspops.c @ 837:724a6bc2a4b8
CHANGES: document tiaud-compile & tiaud-decomp extension
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 30 Jul 2021 01:37:42 +0000 |
parents | 27b5526ba1a8 |
children |
line wrap: on
line source
#include "types.h" #include "leadapi.h" #include "dumpagent.h" wait_for_dsp_ready() { unsigned cnt; for (cnt = 0; cnt < 10000; cnt++) if (DOWNLOAD_STATUS == LEAD_READY) return(0); return(-1); } boot_dsp_dump_agent() { const u16 *src; volatile u16 *api; unsigned n; /* put it into reset first */ CLKM_CNTL_RST |= CLKM_LEAD_RST; /* generous 1 ms for the reset pulse */ wait_ARM_cycles(13000); /* lift it out of reset */ CLKM_CNTL_RST &= ~CLKM_LEAD_RST; /* another generous 1 ms */ wait_ARM_cycles(13000); /* bootloader should be ready for us now */ if (wait_for_dsp_ready() < 0) { printf("ERROR: DSP bootloader not ready out of reset\n"); return(-1); } /* upload the agent code */ src = dsp_agent_code; api = (volatile u16 *) APIF_ADDR; for (n = 0; n < DSP_DUMPCODE_LEN; n++) *api++ = *src++; DOWNLOAD_EXT_PAGE = 0; DOWNLOAD_SIZE = DSP_DUMPCODE_LEN; DOWNLOAD_ADDR = DSP_DUMPCODE_START; DOWNLOAD_STATUS = BLOCK_READY; if (wait_for_dsp_ready() < 0) { printf("ERROR: DSP bl not ready after block write\n"); return(-1); } /* start it! */ DOWNLOAD_EXT_PAGE = 0; DOWNLOAD_SIZE = 0; DOWNLOAD_ADDR = DSP_DUMPCODE_START; DOWNLOAD_STATUS = BLOCK_READY; if (wait_for_dsp_ready() < 0) { printf("ERROR: DSP not ready after commanded jump to agent\n"); return(-1); } } dsp_read_op(mode, addr, blklen) u16 mode, blklen; u32 addr; { int rc; APIRAM_FIRST_WORD = mode; DOWNLOAD_STATUS = PAGE_SELECTION; rc = wait_for_dsp_ready(); if (rc < 0) return(rc); DOWNLOAD_EXT_PAGE = addr >> 16; DOWNLOAD_SIZE = blklen; DOWNLOAD_ADDR = addr; DOWNLOAD_STATUS = BLOCK_READY; rc = wait_for_dsp_ready(); return(rc); }