1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
struct platform_device;
typedef unsigned long __kernel_size_t;
typedef unsigned short __u16;
typedef unsigned int __u32;
typedef unsigned char u8;
typedef unsigned short u16;
typedef __kernel_size_t size_t;
typedef __u32 uint32_t;
static inline __attribute__ ((always_inline))
uint32_t __attribute__ ((pure)) bfin_dspid (void)
{
return ( {
uint32_t __v; __v;}
);
}
struct list_head {
struct list_head *next, *prev;
};
struct page {
union {
};
struct list_head lru;
};
struct device_driver {
const char *name;
struct module *owner;
};
struct fb_info {
struct device *dev;
};
struct platform_driver {
int (*probe) (struct platform_device *);
int (*remove) (struct platform_device *);
struct device_driver driver;
};
struct firmware {
size_t size;
const u8 *data;
};
struct metronomefb_par {
struct fb_info *info;
};
struct waveform_hdr {
u8 trc;
};
static u8 calc_cksum (int start, int end, u8 * mem)
{
u8 tmp = 0;
int i;
for (i = start; i < end; i++)
tmp += mem[i];
return tmp;
}
extern struct waveform_hdr *wfm_hdr;
extern int wmta;
static int
load_waveform (u8 * mem, size_t size, int m, int t, struct metronomefb_par *par)
{
int tta;
int trn = 0;
int i;
u8 cksum;
int cksum_idx;
struct device *dev = par->info->dev;
for (i = 0; i <= sizeof (*wfm_hdr) + wfm_hdr->trc; i++) {
if (mem[i] > t) {
trn = i - sizeof (*wfm_hdr) - 1;
}
}
tta = * (mem + wmta + m * 4) & 0x00FFFFFF;
cksum_idx = tta + trn * 4 + 3;
cksum = calc_cksum (cksum_idx - 3, cksum_idx, mem);
if (cksum != mem[cksum_idx]) {
abort();
}
}
extern struct firmware *fw_entry;
extern struct metronomefb_par *par;
int metronomefb_probe (struct platform_device *dev)
{
return load_waveform ((u8 *) fw_entry->data, fw_entry->size, 3, 31, par);
}
|
