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annotate gsm-fw/services/ffs/drv.c @ 209:6f4a12b4582f

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gsm-fw FFS: starting to integrate C code
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 26 Dec 2013 03:59:59 +0000
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children fee45482aa2a
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209
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1 /******************************************************************************
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2 * Flash File System (ffs)
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3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
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4 *
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5 * ffs low level flash driver
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6 *
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7 * $Id: drv.c 1.30.1.6.1.51.1.1.1.13.1.11 Tue, 06 Jan 2004 14:36:52 +0100 tsj $
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8 *
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9 ******************************************************************************/
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10
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11 #include "../../include/config.h"
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12 #include "ffs.h"
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13 #include "drv.h"
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14 #include "ffstrace.h"
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15 #include "intctl.h"
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16 #include "ramffs.h"
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17 #include <string.h>
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18
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19
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20 /******************************************************************************
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21 * Macros
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22 ******************************************************************************/
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23
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24 #define addr2offset(address) ( (int) (address) - (int) dev.base )
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25
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26
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27 /******************************************************************************
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28 * Generic Driver Functions
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29 ******************************************************************************/
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30
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31 // Note: This function is designed for little-endian memory addressing!
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32 void ffsdrv_write_byte(void *dst, uint8 value)
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33 {
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34 uint16 halfword;
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35
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36 tw(tr(TR_FUNC, TrDrvWrite, "ffsdrv_write_byte(0x%05x, 0x%x)\n",
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37 (int) (addr2offset(dst)), value));
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38 ttw(str(TTrDrvWrite, "wb" NL));
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39
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40 if ((int) dst & 1)
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41 halfword = (value << 8) | *((uint8 *) dst - 1);
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42 else
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43 halfword = (*((uint8 *) dst + 1) << 8) | (value);
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44
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45 ffsdrv.write_halfword((uint16 *) ((int) dst & ~1), halfword);
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46 }
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47
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48 void ffsdrv_generic_write(void *dst, const void *src, uint16 size)
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49 {
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50 uint8 *mydst = dst;
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51 const uint8 *mysrc = src;
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52
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53 if (size > 0)
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54 {
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55 if ((unsigned int) mydst & 1) {
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56 ffsdrv_write_byte(mydst++, *mysrc++);
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57 size--;
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58 }
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59 while (size >= 2) {
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60 ffsdrv.write_halfword((uint16 *) mydst,
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61 mysrc[0] | (mysrc[1] << 8));
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62 size -= 2;
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63 mysrc += 2;
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64 mydst += 2;
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65 }
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66 if (size == 1)
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67 ffsdrv_write_byte(mydst++, *mysrc++);
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68 }
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69 }
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70
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71 /******************************************************************************
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72 * Dummy Functions
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73 ******************************************************************************/
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74
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75 int ffsdrv_null_init(void)
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76 {
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77 ttw(ttr(TTrDrvOther, "ffsdrv_null_init()" NL));
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78
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79 return 0;
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80 }
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81
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82 void ffsdrv_null_erase(uint8 block)
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83 {
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84 ttw(ttr(TTrDrvErase, "ffsdrv_null_erase(%d)" NL, block));
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85 }
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86
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87 void ffsdrv_null_write_halfword(volatile uint16 *addr, uint16 value)
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88 {
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89 ttw(ttr(TTrDrvWrite, "ffsdrv_null_write_halfword(0x%x, 0x%x)" NL, addr, value));
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90 }
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91
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92 void ffsdrv_null_write(void *dst, const void *src, uint16 size)
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93 {
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94 ttw(ttr(TTrDrvWrite, "ffsdrv_null_write(0x%x, 0x%x, %d)" NL, dst, src, size));
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95 }
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96
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97 void ffsdrv_null_erase_suspend(void)
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98 {
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99 ttw(str(TTrDrvErase, "ffsdrv_null_erase_suspend()" NL));
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100 }
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101
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102 void ffsdrv_null_erase_resume(void)
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103 {
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104 ttw(str(TTrDrvErase, "ffsdrv_null_erase_resume()" NL));
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105 }
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106
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107 void ffsdrv_null_write_end(void)
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108 {
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109 ttw(str(TTrDrvWrite, "ffsdrv_null_write_end()" NL));
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110 }
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111
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112 void ffsdrv_null_erase_end(void)
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113 {
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114 ttw(str(TTrDrvErase, "ffsdrv_null_erase_end()" NL));
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115 }
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116
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117 /*
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118 * FreeCalypso change from TI: we only compile one flash "driver" type
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119 * based on the build configuration.
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120 */
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121
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122 #if FFS_IN_RAM
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123
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124 /******************************************************************************
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125 * RAM Family Functions
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126 ******************************************************************************/
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127
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128 struct block_info_s ramffs_block_info[RAMFFS_NBLOCKS];
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129
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130 int ffsdrv_ram_init(void)
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131 {
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132 unsigned i;
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133 uint32 offset;
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134
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135 ttw(ttr(TTrDrvOther, "ffsdrv_ram_init()" NL));
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diff changeset
136 memset(_RAMFFS_area, 0xFF, RAMFFS_TOTAL_SIZE);
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137 offset = 0;
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138 for (i = 0; i < RAMFFS_NBLOCKS; i++) {
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139 ramffs_block_info[i].offset = offset;
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140 ramffs_block_info[i].size_ld = RAMFFS_BLKSIZE_LOG2;
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141 offset += RAMFFS_BLKSIZE_BYTES;
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142 }
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143 return 0;
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144 }
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145
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146 void ffsdrv_ram_write_halfword(volatile uint16 *dst, uint16 value)
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147 {
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148 *dst = value;
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149 }
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150
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151 #if 0
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152 /* duplicates ffsdrv_generic_write */
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153 void ffsdrv_ram_write(void *dst, const void *src, uint16 size)
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154 {
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155 uint8 *mydst = dst;
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156 const uint8 *mysrc = src;
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157
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158 if (size == 0)
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159 return;
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160 else if (size == 1)
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161 ffsdrv_write_byte(mydst, *mysrc);
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162 else {
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163 if ((int) mydst & 1) {
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164 ffsdrv_write_byte(mydst++, *mysrc++);
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165 size--;
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166 }
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167 while (size >= 2) {
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168 ffsdrv_ram_write_halfword((uint16 *) mydst, mysrc[0]|(mysrc[1] << 8));
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169 size -= 2;
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diff changeset
170 mysrc += 2;
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171 mydst += 2;
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172 }
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173 if (size == 1)
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174 ffsdrv_write_byte(mydst++, *mysrc++);
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175 }
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176 }
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177 #endif
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178
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179 void ffsdrv_ram_erase(uint8 block)
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180 {
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181 int i;
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182 char *addr;
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183
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184 addr = block2addr(block);
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diff changeset
185
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186 for (i = 0; i < (1 << dev.binfo[block].size_ld); i++) {
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diff changeset
187 *addr++ = 0xFF;
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188 }
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189 }
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190
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diff changeset
191 const struct ffsdrv_s ffsdrv = {
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192 ffsdrv_ram_init,
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diff changeset
193 ffsdrv_ram_erase,
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diff changeset
194 ffsdrv_ram_write_halfword,
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195 ffsdrv_generic_write,
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diff changeset
196 ffsdrv_null_write_end,
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197 ffsdrv_null_erase_suspend,
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198 ffsdrv_null_erase_resume
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199 };
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200
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201 #elif CONFIG_FLASH_WRITE
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202
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203 /******************************************************************************
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diff changeset
204 * AMD Dual/Multi Bank Driver Functions
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diff changeset
205 ******************************************************************************/
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diff changeset
206
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diff changeset
207 // All erase and write operations are performed atomically (interrupts
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diff changeset
208 // disabled). Otherwise we cannot trust the value of dev.state and we cannot
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parents:
diff changeset
209 // determine exactly how many of the command words have already been
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parents:
diff changeset
210 // written.
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parents:
diff changeset
211
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diff changeset
212 // in ffs_end() when we resume an erasure that was previously suspended, how
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diff changeset
213 // does that affect multiple tasks doing that simultaneously?
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diff changeset
214
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diff changeset
215 void ffsdrv_amd_write_end(void);
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parents:
diff changeset
216 void ffsdrv_amd_erase_end(void);
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diff changeset
217
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diff changeset
218 void ffsdrv_amd_write_halfword(volatile uint16 *addr, uint16 value)
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parents:
diff changeset
219 {
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parents:
diff changeset
220 volatile char *flash = dev.base;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
221 uint32 cpsr;
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parents:
diff changeset
222
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diff changeset
223 tlw(led_on(LED_WRITE));
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parents:
diff changeset
224 ttw(ttr(TTrDrvWrite, "wh(%x,%x)" NL, addr, value));
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parents:
diff changeset
225
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parents:
diff changeset
226 dev.addr = addr;
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parents:
diff changeset
227 dev.data = value;
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parents:
diff changeset
228
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parents:
diff changeset
229 if (~*addr & value) {
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parents:
diff changeset
230 ttw(ttr(TTrFatal, "wh(%x,%x->%x) fatal" NL, addr, *addr, value));
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parents:
diff changeset
231 return;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
232 }
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parents:
diff changeset
233
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parents:
diff changeset
234 cpsr = int_disable();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
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parents:
diff changeset
235 tlw(led_toggle(LED_WRITE_SUSPEND));
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parents:
diff changeset
236 dev.state = DEV_WRITE;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
237 flash[0xAAAA] = 0xAA; // unlock cycle 1
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parents:
diff changeset
238 flash[0x5555] = 0x55; // unlock cycle 2
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parents:
diff changeset
239 flash[0xAAAA] = 0xA0;
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parents:
diff changeset
240 *addr = value;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
241 int_enable(cpsr);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
242 tlw(led_toggle(LED_WRITE_SUSPEND));
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
243
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parents:
diff changeset
244 ffsdrv_amd_write_end();
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parents:
diff changeset
245 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
246
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
247 #if 0
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parents:
diff changeset
248 /* duplicates ffsdrv_generic_write */
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parents:
diff changeset
249 void ffsdrv_amd_write(void *dst, const void *src, uint16 size)
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parents:
diff changeset
250 {
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parents:
diff changeset
251 uint8 *mydst = dst;
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parents:
diff changeset
252 const uint8 *mysrc = src;
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parents:
diff changeset
253
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parents:
diff changeset
254 if (size > 0)
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parents:
diff changeset
255 {
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parents:
diff changeset
256 if ((unsigned int) mydst & 1) {
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parents:
diff changeset
257 ffsdrv_write_byte(mydst++, *mysrc++);
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parents:
diff changeset
258 size--;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
259 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
260 while (size >= 2) {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
261 ffsdrv_amd_write_halfword((uint16 *) mydst,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
262 mysrc[0] | (mysrc[1] << 8));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
263 size -= 2;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
264 mysrc += 2;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
265 mydst += 2;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
266 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
267 if (size == 1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
268 ffsdrv_write_byte(mydst++, *mysrc++);
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
269 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
270 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
271 #endif
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
272
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
273 void ffsdrv_amd_write_end(void)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
274 {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
275 while ((*dev.addr ^ dev.data) & 0x80)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
276 tlw(led_toggle(LED_WRITE_SUSPEND));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
277
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
278 dev.state = DEV_READ;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
279
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
280 tlw(led_off(LED_WRITE));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
281 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
282
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
283 void ffsdrv_amd_erase(uint8 block)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
284 {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
285 volatile char *flash = dev.base;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
286 uint32 cpsr;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
287
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
288 tlw(led_on(LED_ERASE));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
289 ttw(ttr(TTrDrvErase, "e(%d)" NL, block));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
290
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
291 dev.addr = (uint16 *) block2addr(block);
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
292
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
293 cpsr = int_disable();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
294 dev.state = DEV_ERASE;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
295 flash[0xAAAA] = 0xAA; // unlock cycle 1
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
296 flash[0x5555] = 0x55; // unlock cycle 2
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
297 flash[0xAAAA] = 0x80;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
298 flash[0xAAAA] = 0xAA; // unlock cycle 1
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
299 flash[0x5555] = 0x55; // unlock cycle 2
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
300 *dev.addr = 0x30; // AMD erase sector command
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
301 int_enable(cpsr);
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
302
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
303 ffsdrv_amd_erase_end();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
304 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
305
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
306 void ffsdrv_amd_erase_end(void)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
307 {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
308 while ((*dev.addr & 0x80) == 0)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
309 ;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
310
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
311 dev.state = DEV_READ;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
312
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
313 tlw(led_off(LED_ERASE));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
314 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
315
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
316 void ffsdrv_amd_erase_suspend(void)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
317 {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
318 uint32 cpsr;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
319
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
320 tlw(led_on(LED_ERASE_SUSPEND));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
321 ttw(str(TTrDrvErase, "es" NL));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
322
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
323 // if erase has finished then all is ok
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
324 if (*dev.addr & 0x80) {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
325 ffsdrv_amd_erase_end();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
326 tlw(led_off(LED_ERASE_SUSPEND));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
327 return;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
328 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
329
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
330 // NOTEME: As there is no way to be absolutely certain that erase
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
331 // doesn't finish between last poll and the following erase suspend
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
332 // command, we assume that the erase suspend is safe even though the
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
333 // erase IS actually already finished.
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
334
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
335 cpsr = int_disable();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
336 dev.state = DEV_ERASE_SUSPEND;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
337 *dev.addr = 0xB0;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
338
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
339 // Wait for erase suspend to finish
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
340 while ((*dev.addr & 0x80) == 0)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
341 ;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
342
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
343 int_enable(cpsr);
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
344 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
345
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
346 void ffsdrv_amd_erase_resume(void)
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
347 {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
348 uint32 cpsr;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
349
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
350 ttw(str(TTrDrvErase, "er" NL));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
351
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
352 // NOTEME: See note in erase_suspend()... We assume that the erase
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
353 // resume is safe even though the erase IS actually already finished.
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
354 cpsr = int_disable();
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
355 dev.state = DEV_ERASE;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
356 *dev.addr = 0x30;
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
357 int_enable(cpsr);
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
358
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
359 tlw(led_off(LED_ERASE_SUSPEND));
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
360 }
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
361
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
362 const struct ffsdrv_s ffsdrv = {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
363 ffsdrv_null_init,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
364 ffsdrv_amd_erase,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
365 ffsdrv_amd_write_halfword,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
366 ffsdrv_generic_write,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
367 ffsdrv_amd_write_end,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
368 ffsdrv_amd_erase_suspend,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
369 ffsdrv_amd_erase_resume
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
370 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
371
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
372 #else
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
373
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
374 /*
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
375 * This part will get compiled if we have real FFS (FFS_IN_RAM=0),
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
376 * but not allowed to write to flash (CONFIG_FLASH_WRITE=0).
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
377 */
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
378
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
379 const struct ffsdrv_s ffsdrv = {
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
380 ffsdrv_null_init,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
381 ffsdrv_null_erase,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
382 ffsdrv_null_write_halfword,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
383 ffsdrv_null_write,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
384 ffsdrv_null_write_end,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
385 ffsdrv_null_erase_suspend,
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
386 ffsdrv_null_erase_resume
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
387 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
388
6f4a12b4582f gsm-fw FFS: starting to integrate C code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
389 #endif
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390
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391
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392 /******************************************************************************
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393 * Initialization
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394 *
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395 * Significantly simplified in FreeCalypso.
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396 *
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397 ******************************************************************************/
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398
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399 effs_t ffsdrv_init(void)
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400 {
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401 int error;
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402
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403 tw(tr(TR_BEGIN, TrDrvInit, "drv_init() {\n"));
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404 ttw(str(TTrDrvOther, "ffsdrv_init() {" NL));
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405
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406 dev.state = DEV_READ;
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407 dev.atomlog2 = FFS_ATOM_LOG2;
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408 dev.atomsize = 1 << dev.atomlog2;
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409 dev.atomnotmask = dev.atomsize - 1;
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410
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411 error = ffsdrv.init();
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412
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413 tw(tr(TR_FUNC, TrDrvInit, "dev.binfo = 0x%x\n", (unsigned int) dev.binfo));
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414 tw(tr(TR_FUNC, TrDrvInit, "dev.base = 0x%x\n", (unsigned int) dev.base));
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415 tw(tr(TR_FUNC, TrDrvInit, "dev.numblocks = %d\n", dev.numblocks));
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416 tw(tr(TR_FUNC, TrDrvInit, "dev.blocksize = %d\n", dev.blocksize));
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417 tw(tr(TR_FUNC, TrDrvInit, "dev.atomlog2/atomsize/atomnotmask = %d/%d/%x\n",
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418 dev.atomlog2, dev.atomsize, dev.atomnotmask));
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419 tw(tr(TR_END, TrDrvInit, "} %d\n", error));
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420 ttw(ttr(TTrDrvOther, "} %d" NL, error));
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421
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422 return error;
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423 }