FreeCalypso > hg > freecalypso-citrine

annotate L1/cust0/pirelli.c @ 34:2fc925048350

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comlib/cl_imei.c: new universal FreeCalypso IMEI finding scheme consistent across all targets and all fw versions
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 15 Oct 2016 04:43:35 +0000
parents 75a11d740a02
children
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1 /*
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2 * This module is a FreeCalypso addition. Here we implement
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3 * retrieval of Pirelli's factory calibration and IMEI records
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4 * from their factory data block.
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5 */
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6
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7 #include <string.h>
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8 #include "config.h"
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9 #include "sys_types.h"
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10 #include "../../services/ffs/ffs.h"
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11 #include "../../services/ffs/core.h" /* for ffs_begin() and ffs_end() */
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12
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13 #define FACTORY_BLOCK_BASE_ADDR 0x027F0000
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14
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15 static effs_t
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16 pirelli_chksum(uint8 *addr, T_FFS_SIZE size)
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17 {
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18 uint8 accum = 0;
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19
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20 for (; size; size--)
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21 accum += *addr++;
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22 if (accum == *addr)
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23 return EFFS_OK;
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24 else
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25 return EFFS_CORRUPTED;
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26 }
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27
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28 pirelli_read_factory_record(uint32 offset, void *userbuf, T_FFS_SIZE size,
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29 int has_chksum)
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30 {
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31 effs_t rc;
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32 uint8 *flash_record = (uint8 *) FACTORY_BLOCK_BASE_ADDR + offset;
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33
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34 rc = ffs_begin();
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35 if (rc != EFFS_OK)
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36 return(rc);
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37 if (has_chksum)
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38 rc = pirelli_chksum(flash_record, size);
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39 if (rc == EFFS_OK)
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40 bcopy(flash_record, userbuf, size);
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41 return ffs_end(rc);
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42 }
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43
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44 static const struct calmap {
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45 uint32 offset;
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46 char *ti_equiv;
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47 } pirelli_cal_map[] = {
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48 {0x06E5, "/sys/adccal"},
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49 {0x072B, "/gsm/rf/tx/ramps.900"},
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50 {0x092C, "/gsm/rf/tx/levels.900"},
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51 {0x09AD, "/gsm/rf/tx/calchan.900"},
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52 {0x0A2E, "/gsm/rf/tx/ramps.1800"},
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53 {0x0C2F, "/gsm/rf/tx/levels.1800"},
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54 {0x0CB0, "/gsm/rf/tx/calchan.1800"},
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55 {0x0D31, "/gsm/rf/tx/ramps.1900"},
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56 {0x0F32, "/gsm/rf/tx/levels.1900"},
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57 {0x0FB3, "/gsm/rf/tx/calchan.1900"},
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58 {0x10AF, "/gsm/rf/rx/calchan.900"},
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59 {0x10D8, "/gsm/rf/rx/agcparams.900"},
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60 {0x10E1, "/gsm/rf/rx/calchan.1800"},
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61 {0x110A, "/gsm/rf/rx/agcparams.1800"},
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62 {0x1113, "/gsm/rf/rx/calchan.1900"},
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63 {0x113C, "/gsm/rf/rx/agcparams.1900"},
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64 {0, 0}
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65 };
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66
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67 pirelli_cal_fread(const char *name, void *userbuf, T_FFS_SIZE size)
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68 {
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69 int rc;
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70 const struct calmap *map;
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71
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72 /* try FFS first, so FreeCalypso user can override factory prog */
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73 rc = ffs_file_read(name, userbuf, size);
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74 if (rc >= 0)
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75 return EFFS_OK;
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76 /* does the sought file correspond to a Pirelli factory data record? */
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77 for (map = pirelli_cal_map; map->ti_equiv; map++)
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78 if (!strcmp(map->ti_equiv, name))
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79 break;
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80 if (!map->offset) /* not found */
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81 return rc; /* return error code from FFS */
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82 /* found it */
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83 return pirelli_read_factory_record(map->offset, userbuf, size, 1);
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84 }