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otg_common.c
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#include "otg.h"
#ifdef OTG_HOST
# include <unistd.h>
#endif
static const uint8_t g_apePortTable[] = {APE_PORT_PHY0, APE_PORT_PHY1, APE_PORT_PHY2, APE_PORT_PHY3}; //0,2,3,5
static void Sleep(uint32_t delay) {
#ifdef PROPRIETARY
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#endif
}
// Wait for the MII communication interface to not be busy.
static void MIIWait(void) {
#ifdef PROPRIETARY
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#endif
}
// Read an MDI value via the MII communication interface.
// phyNo and regNo are 5 bits.
static uint16_t MIIRead(uint8_t phyNo, uint8_t regNo) {
#ifdef PROPRIETARY
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#endif
}
// Begin writing an MDI value via the MII communication interface. Does not
// wait for the write to finish, but does wait for any previous writes to
// finish first. Use MIIWait afterwards if synchronous operation is required.
static void MIIWrite(uint8_t phyNo, uint8_t regNo, uint16_t data) {
#ifdef PROPRIETARY
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#endif
}
static void MIIOr(uint8_t phyNo, uint8_t regNo, uint16_t bitsToOr) {
#ifdef PROPRIETARY
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#endif
}
// Mask out a bit of a MII register and rewrite it.
static void MIIMask(uint8_t phyNo, uint8_t regNo, uint16_t bitsToDisable) {
#ifdef PROPRIETARY
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#endif
}
// Sets or clears a bit of a MII register and rewrites it.
static void MIISetClear(uint8_t phyNo, uint8_t regNo, uint16_t bit, bool yes) {
#ifdef PROPRIETARY
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#endif
}
// This is only used with the SERDES PHYs - the GPHYs have a different register
// map with a different method of overloading the limited MII register space,
// so never try and use it on a GPHY.
static void MIISelectBlockSERDES(uint8_t phyNo, uint16_t blockNo) {
#ifdef PROPRIETARY
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#endif
}
static void NVMAcquire(void) {
#ifdef PROPRIETARY
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#endif
}
static uint32_t NVMAcquireAndRelease(void) {
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}
static void NVMWaitDone(void) {
#ifdef PROPRIETARY
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#endif
}
// TODO: refactor
static uint32_t NVMGetPageSize(void) {
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#endif
}
#if defined(STAGE1)
extern uint32_t g_using264BytePagesForNVM;
static uint32_t NVMInflateByteCountIfUsing264BytePages(uint32_t byteOffset) {
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#endif
}
#elif defined(STAGE2) || defined(OTG_HOST)
static uint32_t NVMInflateByteCountIfUsing264BytePages(uint32_t byteOffset) {
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#endif
}
#else
# error STAGE1/STAGE2 not defined
#endif
// Takes flags ARB_ACQUIRE, ARB_RELEASE.
static uint32_t NVMRead32(uint32_t byteOffset, uint32_t flags) {
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}
#ifdef OTG_HOST
static void NVMReadBulk(uint32_t byteOffset, void *buf, size_t numWords, uint32_t flags) {
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#endif
}
static void NVMWrite32(uint32_t byteOffset, uint32_t value, uint32_t flags) {
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}
// untested
static void NVMWriteBulk(uint32_t byteOffset, const void *buf, uint32_t numWords, uint32_t flags) {
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#endif
}
#endif
static uint32_t NVMFindEntry(uint8_t desiredTag) {
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}
// len is in words.
static uint32_t ComputeCRC(const void *base, uint32_t len, uint32_t initialValue) {
#ifdef PROPRIETARY
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#endif
}
static void DebugPrint(const char *msg) {
#ifdef OTG_HOST
puts(msg);
#else
for (;*msg;) {
uint32_t x = 0;
uint8_t c;
for (size_t i=0; i<4; ++i) {
c = *msg;
if (c) {
x <<= 8;
x |= c;
++msg;
}
}
SetGencom32(0x360, x);
SetGencom32(0x364, 1);
while (GetGencom32(0x364))
if (GetGencom32(0x368) != 0xDECAFBAD)
return;
}
#endif
}
#ifdef OTG_HOST
static bool g_readFail = false;
static uint32_t _SetReadFailure(const char *msg) {
if (!g_readFail) {
fprintf(stderr, "WARNING: Read failure occurred. Further failures will not be indicated, and failed reads will return 0xFFFF_FFFF. Cause of first failure: %s\n", msg);
g_readFail = true;
}
return 0xFFFFFFFF;
}
// General APE Locking
// ---------------------------------------------------------------------------
// lockType: APE_PORT_*
static uint32_t GetAPELockBit(uint32_t lockType) {
#ifdef PROPRIETARY
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}
// lockType: APE_PORT_*
static int LockAPE(uint32_t lockType) {
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}
// lockType: APE_PORT_*
static void UnlockAPE(uint32_t lockType) {
#ifdef PROPRIETARY
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#endif
}
// APE Event System
// ---------------------------------------------------------------------------
static int WaitAPEEvent(void) {
#ifdef PROPRIETARY
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}
static int LockAPEEvent(void) {
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}
static void UnlockAPEEvent(void) {
#ifdef PROPRIETARY
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#endif
}
static void _WarnAboutAPEState(const char *msg) {
static bool _done = false;
if (_done)
return;
fprintf(stderr, "warning: APE is not in correct state for scratchpad read/write to work; reads/writes will fail (%s)\n", msg);
_done = true;
}
static uint32_t GetAPEEventScratchpadWord(uint32_t offset) {
#ifdef PROPRIETARY
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#endif
}
void SetAPEEventScratchpadWord(uint32_t offset, uint32_t value) {
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#endif
}
static void _WarnAboutAPEStateShell(const char *msg) {
static bool _done = false;
if (_done)
return;
fprintf(stderr, "warning: apedbg is not running, shell reads/writes will not work (%s)\n", msg);
_done = true;
}
static int _WaitAPEShellCmd(void) {
uint32_t timeout = 10000/10;
while (GetReg(REG_APE__APEDBG_CMD)) {
if (!timeout--) {
_WarnAboutAPEState("command timed out");
return -1;
}
usleep(10);
}
return 0;
}
uint32_t GetAPEMemShell(uint32_t offset) {
if (GetReg(REG_APE__APEDBG_STATE) != REG_APE__APEDBG_STATE__RUNNING) {
_WarnAboutAPEState("apedbg not running");
return 0xFFFFFFFF;
}
if (_WaitAPEShellCmd())
return 0xFFFFFFFF;
SetReg(REG_APE__APEDBG_ARG0, offset);
SetReg(REG_APE__APEDBG_CMD,
REG_APE__APEDBG_CMD__MAGIC
|REG_APE__APEDBG_CMD__TYPE__MEM_GET);
if (_WaitAPEShellCmd())
return 0xFFFFFFFF;
uint32_t exc = GetReg(REG_APE__APEDBG_CMD_ERROR_FLAGS);
if (exc) {
_WarnAboutAPEState("exception caught");
return 0xFFFFFFFF;
}
return GetReg(REG_APE__APEDBG_ARG1);
}
void SetAPEMemShell(uint32_t offset, uint32_t v) {
if (GetReg(REG_APE__APEDBG_STATE) != REG_APE__APEDBG_STATE__RUNNING) {
_WarnAboutAPEState("apedbg not running");
return;
}
if (_WaitAPEShellCmd())
return;
SetReg(REG_APE__APEDBG_ARG0, offset);
SetReg(REG_APE__APEDBG_ARG1, v);
SetReg(REG_APE__APEDBG_CMD,
REG_APE__APEDBG_CMD__MAGIC
|REG_APE__APEDBG_CMD__TYPE__MEM_SET);
_WaitAPEShellCmd();
uint32_t exc = GetReg(REG_APE__APEDBG_CMD_ERROR_FLAGS);
if (exc)
_WarnAboutAPEState("exception caught");
}
// OTP Access
// ---------------------------------------------------------------------------
static uint32_t GetOTP(uint32_t offset) {
#ifdef PROPRIETARY
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#endif
}
// Compression
// ---------------------------------------------------------------------------
#define CMPS_MAGIC 0x53504D43
typedef struct __attribute__((packed)) {
uint32_t magic; // "CMPS" (CMPS_MAGIC)
uint32_t compressedSize; //
uint32_t uncompressedSize;
uint32_t unkC;
} cmps_header;
static_assert(sizeof(cmps_header) == 16, "cmps_header");
typedef struct {
uint8_t dict[2048 +64];
size_t dictIdx;
} cmps_state;
static cmps_state g_state;
// uncompSize may be SIZE_MAX
typedef ssize_t (write_t)(uint8_t ch, void *arg);
static void Decompress(const void *inStart, size_t inBytes, size_t uncompSize, write_t *writef, void *arg,
size_t *bytesRead_, size_t *bytesWritten_) {
#ifdef PROPRIETARY
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/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
/* scrubbed */
#endif
}
#endif