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arm/gp32/smc/smc.c: Fix warnings and clean up

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This commit is contained in:
Joel Sherrill
2014-10-13 13:18:55 -05:00
parent 21021feb60
commit 57e8a0dc90
1 changed files with 261 additions and 293 deletions
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138
c/src/lib/libbsp/arm/gp32/smc/smc.c
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@@ -1,9 +1,10 @@
/* smc.c -- s3c2400 smc disk block device implementation /*
* s3c2400 smc disk block device implementation
Squidge's SMC Low-level access routines. *
Inspired and derived from routines provided by Samsung Electronics M/M R&D Center & FireFly. * Squidge's SMC Low-level access routines.
* Inspired and derived from routines provided by Samsung Electronics
*/ * M/M R&D Center & FireFly.
*/
#include <rtems.h> #include <rtems.h>
#include <rtems/libio.h> #include <rtems/libio.h>
@@ -49,8 +50,7 @@
/* Internal SMC disk descriptor */ /* Internal SMC disk descriptor */
struct SMC_INFO struct SMC_INFO {
{
uint8_t id[3]; uint8_t id[3];
uint32_t bytes_per_page; uint32_t bytes_per_page;
uint32_t pages_per_block; uint32_t pages_per_block;
@@ -112,7 +112,7 @@ static uint8_t sm_read(void)
returns 1 on success, 0 on fail returns 1 on success, 0 on fail
*/ */
#if UNUSED #if UNUSED
static uint8_t sm_status() static static uint8_t sm_status()
{ {
uint8_t status; uint8_t status;
@@ -133,9 +133,8 @@ static uint8_t sm_status()
} }
#endif #endif
void smc_read_id( uint8_t* buf, uint32_t length) static void smc_read_id( uint8_t* buf, uint32_t length)
{ {
uint32_t i; uint32_t i;
sm_chip_en(); sm_chip_en();
@@ -160,7 +159,7 @@ void smc_read_id( uint8_t* buf, uint32_t length)
} }
/* read an entire logical page of 512 bytes.*/ /* read an entire logical page of 512 bytes.*/
uint8_t smc_read_page (uint32_t lpage, uint8_t* buf) static uint8_t smc_read_page (uint32_t lpage, uint8_t* buf)
{ {
uint32_t block, page, i; uint32_t block, page, i;
@@ -188,15 +187,15 @@ uint8_t smc_read_page (uint32_t lpage, uint8_t* buf)
sm_write( 0x00); sm_write( 0x00);
sm_write( (uint8_t)(page >> 0)); sm_write( (uint8_t)(page >> 0));
sm_write( (uint8_t)(page >> 8)); sm_write( (uint8_t)(page >> 8));
if (smc_info.mb >= 64) sm_write( (uint8_t)(page >> 16)); if (smc_info.mb >= 64)
sm_write( (uint8_t)(page >> 16));
sm_write_dis(); sm_write_dis();
sm_ale_dis(); sm_ale_dis();
sm_busy(); sm_busy();
sm_read_en(); sm_read_en();
for (i = 0; i < 512; i++) for (i = 0; i < 512; i++) {
{
*buf = sm_read(); *buf = sm_read();
buf++; buf++;
} }
@@ -207,11 +206,10 @@ uint8_t smc_read_page (uint32_t lpage, uint8_t* buf)
return 1; return 1;
} }
void smc_read_spare( uint32_t page, uint8_t* buf, uint8_t length) static void smc_read_spare( uint32_t page, uint8_t* buf, uint8_t length)
{ {
uint32_t i; uint32_t i;
sm_chip_en(); sm_chip_en();
sm_cle_en(); sm_cle_en();
@@ -225,21 +223,23 @@ void smc_read_spare( uint32_t page, uint8_t* buf, uint8_t length)
sm_write( 0x00); sm_write( 0x00);
sm_write( (uint8_t)(page >> 0)); sm_write( (uint8_t)(page >> 0));
sm_write( (uint8_t)(page >> 8)); sm_write( (uint8_t)(page >> 8));
if (smc_info.mb >= 64) sm_write( (uint8_t)(page >> 16)); if (smc_info.mb >= 64)
sm_write( (uint8_t)(page >> 16));
sm_read_en(); sm_read_en();
sm_ale_dis(); sm_ale_dis();
sm_busy(); sm_busy();
sm_read_en(); sm_read_en();
for (i=0;i<length;i++) *(buf+i) = sm_read(); for (i=0;i<length;i++)
*(buf+i) = sm_read();
sm_read_dis(); sm_read_dis();
sm_chip_dis(); sm_chip_dis();
} }
void smc_make_l2p(void) static void smc_make_l2p(void)
{ {
uint32_t pblock, i, j, lblock, zone, count, cnt1, cnt2, cnt3; uint32_t pblock, i, j, lblock, zone, count, cnt1, cnt2, cnt3;
uint8_t data[512]; uint8_t data[512];
@@ -248,38 +248,30 @@ void smc_make_l2p(void)
cnt2 = 0; cnt2 = 0;
cnt3 = 0; cnt3 = 0;
for (i=0;i<0x2000;i++) for (i=0;i<0x2000;i++) {
{
smc_l2p[i] = LBA_RESERVED; smc_l2p[i] = LBA_RESERVED;
smc_p2l[i] = BLOCK_RESERVED; smc_p2l[i] = BLOCK_RESERVED;
} }
for (pblock=0;pblock<smc_info.blocks;pblock++)
{ for (pblock=0;pblock<smc_info.blocks;pblock++) {
/* read physical block - first page */ /* read physical block - first page */
smc_read_spare( pblock*smc_info.pages_per_block, (uint8_t*)&data, 16); smc_read_spare( pblock*smc_info.pages_per_block, (uint8_t*)&data, 16);
zone = pblock >> 10; /* divide by 1024 to get zone */ zone = pblock >> 10; /* divide by 1024 to get zone */
if ((data[5] == 0xFF) && ((data[6]&0xF8) == 0x10)) if ((data[5] == 0xFF) && ((data[6]&0xF8) == 0x10)) {
{
lblock = ((((data[6]<<8)|(data[7]<<0)) >> 1) & 0x03FF) + (zone * 1000); lblock = ((((data[6]<<8)|(data[7]<<0)) >> 1) & 0x03FF) + (zone * 1000);
smc_l2p[lblock] = pblock; smc_l2p[lblock] = pblock;
smc_p2l[pblock] = lblock; smc_p2l[pblock] = lblock;
cnt1++; cnt1++;
} } else {
else
{
count = 0; count = 0;
for (j=0;j<16;j++) for (j=0;j<16;j++) {
{
if (data[j] == 0xFF) count++; if (data[j] == 0xFF) count++;
} }
if (count == 16) if (count == 16) {
{
smc_p2l[pblock] = BLOCK_UNUSED; smc_p2l[pblock] = BLOCK_UNUSED;
cnt2++; cnt2++;
} } else {
else
{
smc_p2l[pblock] = BLOCK_RESERVED; smc_p2l[pblock] = BLOCK_RESERVED;
cnt3++; cnt3++;
} }
@@ -288,7 +280,7 @@ void smc_make_l2p(void)
} }
void smc_detect( uint8_t id1, uint8_t id2, uint8_t id3) static void smc_detect( uint8_t id1, uint8_t id2, uint8_t id3)
{ {
smc_info.id[0] = id1; smc_info.id[0] = id1;
smc_info.id[1] = id2; smc_info.id[1] = id2;
@@ -298,13 +290,10 @@ void smc_detect( uint8_t id1, uint8_t id2, uint8_t id3)
smc_info.pages_per_block = 0; smc_info.pages_per_block = 0;
smc_info.blocks = 0; smc_info.blocks = 0;
switch (id1) switch (id1) {
{
case SMC_SAMSUNG_ID: case SMC_SAMSUNG_ID:
case SMC_TOSHIBA_ID: case SMC_TOSHIBA_ID: {
{ switch (id2) {
switch (id2)
{
case SMC_16MB : smc_info.mb = 16; break; case SMC_16MB : smc_info.mb = 16; break;
case SMC_32MB : smc_info.mb = 32; break; case SMC_32MB : smc_info.mb = 32; break;
case SMC_64MB : smc_info.mb = 64; break; case SMC_64MB : smc_info.mb = 64; break;
@@ -314,8 +303,7 @@ void smc_detect( uint8_t id1, uint8_t id2, uint8_t id3)
} }
} }
switch (smc_info.mb) switch (smc_info.mb) {
{
case 16 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x0400; break; case 16 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x0400; break;
case 32 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x0800; break; case 32 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x0800; break;
case 64 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x1000; break; case 64 : smc_info.bytes_per_page = 512; smc_info.pages_per_block = 32; smc_info.blocks = 0x1000; break;
@@ -323,7 +311,7 @@ void smc_detect( uint8_t id1, uint8_t id2, uint8_t id3)
} }
} }
void smc_init( void) static void smc_init( void)
{ {
unsigned char buf[32]; unsigned char buf[32];
int i; int i;
@@ -368,14 +356,12 @@ int sm_ECCEncode(const uint8_t * p_buf, uint8_t * p_ecc)
uint8_t* paritr_ptr; uint8_t* paritr_ptr;
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; ++i, ++paritr_ptr, ++p_buf) for (i = 0; i < 256; ++i, ++paritr_ptr, ++p_buf) {
{
paritc ^= *p_buf; paritc ^= *p_buf;
tmp = (*p_buf & 0xf0) >> 4; tmp = (*p_buf & 0xf0) >> 4;
tmp2 = *p_buf & 0x0f; tmp2 = *p_buf & 0x0f;
switch (tmp) switch (tmp) {
{
case 0: case 0:
case 3: case 3:
case 5: case 5:
@@ -416,80 +402,64 @@ int sm_ECCEncode(const uint8_t * p_buf, uint8_t * p_ecc)
parit4_1 = parit7c ^ parit6c ^ parit5c ^ parit4c; parit4_1 = parit7c ^ parit6c ^ parit5c ^ parit4c;
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; ++i, ++paritr_ptr) for (i = 0; i < 256; ++i, ++paritr_ptr) {
{
sum ^= *paritr_ptr; sum ^= *paritr_ptr;
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 2, paritr_ptr += 2) for (i = 0; i < 256; i += 2, paritr_ptr += 2) {
{
parit8_2 ^= *paritr_ptr; parit8_2 ^= *paritr_ptr;
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 4, paritr_ptr += 4) for (i = 0; i < 256; i += 4, paritr_ptr += 4) {
{
parit16_2 ^= *paritr_ptr; parit16_2 ^= *paritr_ptr;
parit16_2 ^= *(paritr_ptr + 1); parit16_2 ^= *(paritr_ptr + 1);
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 8, paritr_ptr += 8) for (i = 0; i < 256; i += 8, paritr_ptr += 8) {
{ for (j = 0; j <= 3; ++j) {
for (j = 0; j <= 3; ++j)
{
parit32_2 ^= *(paritr_ptr + j); parit32_2 ^= *(paritr_ptr + j);
} }
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 16, paritr_ptr += 16) for (i = 0; i < 256; i += 16, paritr_ptr += 16) {
{ for (j = 0; j <= 7; ++j) {
for (j = 0; j <= 7; ++j)
{
parit64_2 ^= *(paritr_ptr + j); parit64_2 ^= *(paritr_ptr + j);
} }
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 32, paritr_ptr += 32) for (i = 0; i < 256; i += 32, paritr_ptr += 32) {
{ for (j = 0; j <= 15; ++j) {
for (j = 0; j <= 15; ++j)
{
parit128_2 ^= *(paritr_ptr + j); parit128_2 ^= *(paritr_ptr + j);
} }
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 64, paritr_ptr += 64) for (i = 0; i < 256; i += 64, paritr_ptr += 64) {
{ for (j = 0; j <= 31; ++j) {
for (j = 0; j <= 31; ++j)
{
parit256_2 ^= *(paritr_ptr + j); parit256_2 ^= *(paritr_ptr + j);
} }
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 128, paritr_ptr += 128) for (i = 0; i < 256; i += 128, paritr_ptr += 128) {
{ for (j = 0; j <= 63; ++j) {
for (j = 0; j <= 63; ++j)
{
parit512_2 ^= *(paritr_ptr + j); parit512_2 ^= *(paritr_ptr + j);
} }
} }
paritr_ptr = paritr; paritr_ptr = paritr;
for (i = 0; i < 256; i += 256, paritr_ptr += 256) for (i = 0; i < 256; i += 256, paritr_ptr += 256) {
{ for (j = 0; j <= 127; ++j) {
for (j = 0; j <= 127; ++j)
{
parit1024_2 ^= *(paritr_ptr + j); parit1024_2 ^= *(paritr_ptr + j);
} }
} }
if (sum==0) if (sum==0) {
{
parit1024_1 = parit1024_2; parit1024_1 = parit1024_2;
parit512_1 = parit512_2; parit512_1 = parit512_2;
parit256_1 = parit256_2; parit256_1 = parit256_2;
@@ -498,9 +468,7 @@ int sm_ECCEncode(const uint8_t * p_buf, uint8_t * p_ecc)
parit32_1 = parit32_2; parit32_1 = parit32_2;
parit16_1 = parit16_2; parit16_1 = parit16_2;
parit8_1 = parit8_2; parit8_1 = parit8_2;
} } else {
else
{
parit1024_1 = parit1024_2 ? 0 : 1; parit1024_1 = parit1024_2 ? 0 : 1;
parit512_1 = parit512_2 ? 0 : 1; parit512_1 = parit512_2 ? 0 : 1;
parit256_1 = parit256_2 ? 0 : 1; parit256_1 = parit256_2 ? 0 : 1;