FreeCalypso > hg > freecalypso-citrine

comparison L1/cust0/pirelli.c @ 0:75a11d740a02

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initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 09 Jun 2016 00:02:41 +0000
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1 /*
2 * This module is a FreeCalypso addition. Here we implement
3 * retrieval of Pirelli's factory calibration and IMEI records
4 * from their factory data block.
5 */
6
7 #include <string.h>
8 #include "config.h"
9 #include "sys_types.h"
10 #include "../../services/ffs/ffs.h"
11 #include "../../services/ffs/core.h" /* for ffs_begin() and ffs_end() */
12
13 #define FACTORY_BLOCK_BASE_ADDR 0x027F0000
14
15 static effs_t
16 pirelli_chksum(uint8 *addr, T_FFS_SIZE size)
17 {
18 uint8 accum = 0;
19
20 for (; size; size--)
21 accum += *addr++;
22 if (accum == *addr)
23 return EFFS_OK;
24 else
25 return EFFS_CORRUPTED;
26 }
27
28 pirelli_read_factory_record(uint32 offset, void *userbuf, T_FFS_SIZE size,
29 int has_chksum)
30 {
31 effs_t rc;
32 uint8 *flash_record = (uint8 *) FACTORY_BLOCK_BASE_ADDR + offset;
33
34 rc = ffs_begin();
35 if (rc != EFFS_OK)
36 return(rc);
37 if (has_chksum)
38 rc = pirelli_chksum(flash_record, size);
39 if (rc == EFFS_OK)
40 bcopy(flash_record, userbuf, size);
41 return ffs_end(rc);
42 }
43
44 static const struct calmap {
45 uint32 offset;
46 char *ti_equiv;
47 } pirelli_cal_map[] = {
48 {0x06E5, "/sys/adccal"},
49 {0x072B, "/gsm/rf/tx/ramps.900"},
50 {0x092C, "/gsm/rf/tx/levels.900"},
51 {0x09AD, "/gsm/rf/tx/calchan.900"},
52 {0x0A2E, "/gsm/rf/tx/ramps.1800"},
53 {0x0C2F, "/gsm/rf/tx/levels.1800"},
54 {0x0CB0, "/gsm/rf/tx/calchan.1800"},
55 {0x0D31, "/gsm/rf/tx/ramps.1900"},
56 {0x0F32, "/gsm/rf/tx/levels.1900"},
57 {0x0FB3, "/gsm/rf/tx/calchan.1900"},
58 {0x10AF, "/gsm/rf/rx/calchan.900"},
59 {0x10D8, "/gsm/rf/rx/agcparams.900"},
60 {0x10E1, "/gsm/rf/rx/calchan.1800"},
61 {0x110A, "/gsm/rf/rx/agcparams.1800"},
62 {0x1113, "/gsm/rf/rx/calchan.1900"},
63 {0x113C, "/gsm/rf/rx/agcparams.1900"},
64 {0, 0}
65 };
66
67 pirelli_cal_fread(const char *name, void *userbuf, T_FFS_SIZE size)
68 {
69 int rc;
70 const struct calmap *map;
71
72 /* try FFS first, so FreeCalypso user can override factory prog */
73 rc = ffs_file_read(name, userbuf, size);
74 if (rc >= 0)
75 return EFFS_OK;
76 /* does the sought file correspond to a Pirelli factory data record? */
77 for (map = pirelli_cal_map; map->ti_equiv; map++)
78 if (!strcmp(map->ti_equiv, name))
79 break;
80 if (!map->offset) /* not found */
81 return rc; /* return error code from FFS */
82 /* found it */
83 return pirelli_read_factory_record(map->offset, userbuf, size, 1);
84 }