Mercurial > louis > kiibohd-controller

annotate Bootloader/flash.c @ 412:e7a3be42ae1e

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Debug code for interconnect cable debugging
author Jacob Alexander <haata@kiibohd.com>
date Sat, 20 Feb 2016 13:27:49 -0800
parents 932ef3bbd4d7
children
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1 /* Copyright (c) 2011,2012 Simon Schubert <2@0x2c.org>.
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2 * Modifications by Jacob Alexander 2014-2015 <haata@kiibohd.com>
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3 *
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4 * This program is free software: you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation, either version 3 of the License, or
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7 * (at your option) any later version.
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8 *
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9 * This program is distributed in the hope that it will be useful,
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 * GNU General Public License for more details.
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13 *
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14 * You should have received a copy of the GNU General Public License
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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16 */
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17
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18 // ----- Local Includes -----
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19
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20 #include "mchck.h"
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21 #include "debug.h"
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22
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23
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24
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25 // ----- Variables -----
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26
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27 uint32_t flash_ALLOW_BRICKABLE_ADDRESSES;
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31 // ----- Functions -----
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32
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33 /* This will have to live in SRAM. */
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34 __attribute__((section(".ramtext.ftfl_submit_cmd"), long_call))
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35 int ftfl_submit_cmd()
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36 {
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37 FTFL.fstat.raw = ((struct FTFL_FSTAT_t){
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38 .ccif = 1,
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39 //.rdcolerr = 1,
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40 .accerr = 1,
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41 .fpviol = 1
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42 }).raw;
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43
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44 // Wait for the operation to complete
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45 struct FTFL_FSTAT_t stat;
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46 while (!(stat = FTFL.fstat).ccif); // XXX maybe WFI?
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47
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48 // Mask error bits
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49 return stat.raw & (FTFL_FSTAT_RDCOLERR | FTFL_FSTAT_ACCERR | FTFL_FSTAT_FPVIOL | FTFL_FSTAT_MGSTAT0);
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50 //return (!!stat.mgstat0);
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51 }
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52
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53 int flash_prepare_flashing()
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54 {
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55 /* switch to FlexRAM */
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56 if ( !FTFL.fcnfg.ramrdy )
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57 {
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58 FTFL.fccob.set_flexram.fcmd = FTFL_FCMD_SET_FLEXRAM;
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59 FTFL.fccob.set_flexram.flexram_function = FTFL_FLEXRAM_RAM;
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60 return (ftfl_submit_cmd());
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61 }
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62 return (0);
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63 }
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64
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65 int flash_read_1s_sector( uintptr_t addr, size_t num )
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66 {
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67 FTFL.fccob.read_1s_section.fcmd = FTFL_FCMD_READ_1s_SECTION;
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68 FTFL.fccob.read_1s_section.addr = addr;
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69 FTFL.fccob.read_1s_section.margin = FTFL_MARGIN_NORMAL;
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70 FTFL.fccob.read_1s_section.num_words = num;
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71
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72 return ftfl_submit_cmd();
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73 }
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74
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75 int flash_erase_sector( uintptr_t addr )
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76 {
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77 #ifdef FLASH_DEBUG
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78 // Debug
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79 print("Erasing Sector: address(");
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80 printHex( addr );
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81 printNL(")");
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82 #endif
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83
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84 if ( addr < (uintptr_t)&_app_rom && flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420 )
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85 return (-1);
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86 FTFL.fccob.erase.fcmd = FTFL_FCMD_ERASE_SECTOR;
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87 FTFL.fccob.erase.addr = addr;
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88
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89 return ftfl_submit_cmd();
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90 }
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91
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92 int flash_program_section_longwords( uintptr_t addr, size_t num_words )
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93 {
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94 #ifdef FLASH_DEBUG
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95 // Debug
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96 print("Programming Sector: address(");
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97 printHex( addr );
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98 print(") longwords(");
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99 printHex( num_words );
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100 printNL(")");
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101 #endif
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102
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103 FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
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104 FTFL.fccob.program_section.addr = addr;
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105 FTFL.fccob.program_section.num_words = num_words;
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107 return ftfl_submit_cmd();
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108 }
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109
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110 int flash_program_section_phrases( uintptr_t addr, size_t num_phrases )
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111 {
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112 #ifdef FLASH_DEBUG
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113 // Debug
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114 print("Programming Sector: address(");
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115 printHex( addr );
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116 print(") phrases(");
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117 printHex( num_phrases );
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118 printNL(")");
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119 #endif
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120
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121 FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
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122 FTFL.fccob.program_section.addr = addr;
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123 FTFL.fccob.program_section.num_words = num_phrases;
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124
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125 return ftfl_submit_cmd();
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126 }
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127
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128 int flash_program_sector( uintptr_t addr, size_t len )
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129 {
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130 if ( len != USB_DFU_TRANSFER_SIZE )
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131 return 1;
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132
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133 #if defined(_mk20dx128vlf5_)
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134 // Check if this is the beginning of a sector
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135 // Only erase if necessary
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136 if ( (addr & (FLASH_SECTOR_SIZE - 1)) == 0
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137 && flash_read_1s_sector( addr, FLASH_SECTOR_SIZE / 4 )
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138 && flash_erase_sector( addr ) )
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139 return 1;
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140
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141 // Program sector
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142 return flash_program_section_longwords( addr, FLASH_SECTOR_SIZE / 4 );
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143 #elif defined(_mk20dx256vlh7_)
335
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144 // Check if beginning of sector and erase if not empty
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145 // Each sector is 2 kB in length, but we can only write to half a sector at a time
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146 // We can only erase an entire sector at a time
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147 if ( (addr & (FLASH_SECTOR_SIZE - 1)) == 0
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148 && flash_read_1s_sector( addr, FLASH_SECTOR_SIZE / 8 )
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149 && flash_erase_sector( addr ) )
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150 return 1;
795cc567b018 Basic code for mk20dx256vlh7 flashing
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151
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152 // Program half-sector
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153 return flash_program_section_phrases( addr, FLASH_SECTOR_SIZE / 16 );
330
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154 #endif
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155 }
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156
335
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157 int flash_prepare_reading()
330
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158 {
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159 return (0);
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160 }
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161
335
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162 int flash_read_sector( uintptr_t addr, size_t len )
330
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163 {
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164 return (0);
193
b091bb09c55f Adding McHCK DFU Bootloader
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165 }
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parents:
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166
335
795cc567b018 Basic code for mk20dx256vlh7 flashing
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167 void *flash_get_staging_area( uintptr_t addr, size_t len )
193
b091bb09c55f Adding McHCK DFU Bootloader
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parents:
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168 {
337
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169 if ( (addr & (USB_DFU_TRANSFER_SIZE - 1)) != 0 || len != USB_DFU_TRANSFER_SIZE )
308
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170 return (NULL);
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171 return (FlexRAM);
193
b091bb09c55f Adding McHCK DFU Bootloader
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parents:
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172 }
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parents:
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173