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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/******************************************************************************
** File Name: *
** Author: *
** DATE: *
** Copyright: Spreatrum, Incoporated. All Rights Reserved. *
** Description: *
******************************************************************************
******************************************************************************
** Edit History *
** ------------------------------------------------------------------------- *
** DATE NAME DESCRIPTION *
** *
******************************************************************************/
/**---------------------------------------------------------------------------*
** Dependencies *
**--------------------------------------------------------------------------- */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/lzo.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/sched.h>
#ifndef CONFIG_64BIT
#include <mach/arch_misc.h>
#endif
#include <linux/highmem.h>
#include <linux/vmalloc.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
#include "sprd_zipenc_drv.h"
//#include "lzodefs_hw.h"
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/atomic.h>
//macro
DEFINE_SPINLOCK(zipenc_lock);
u32 lzo1x_virt_to_phys(u32 virt_addr)
{
u32 phy_addr;
struct page *page;
if((unsigned long)virt_addr<PAGE_OFFSET){
printk("%s: virtual addr is error\n",__func__);
return (-1UL);
}
if(virt_addr_valid(virt_addr)){
phy_addr=virt_to_phys(virt_addr);
}
else if(is_vmalloc_or_module_addr(virt_addr)){
page =vmalloc_to_page(virt_addr);
phy_addr =(page)? page_to_phys(page): (-1UL);
}
else{
page = kmap_atomic_to_page(virt_addr);
phy_addr =(page)? page_to_phys(page): (-1UL);
}
return phy_addr;
}
static int _lzo1x_1_hw_compress(u32 src_addr , u32 src_num , u32 dst_addr , u32 *dst_len)
{
u32 len,ol_sts;
u32 phy_src_addr,phy_dst_addr;
*dst_len=0;
phy_src_addr = lzo1x_virt_to_phys(src_addr);
phy_dst_addr = lzo1x_virt_to_phys(dst_addr);
if((phy_src_addr==(-1UL))||(phy_dst_addr==(-1UL)))
{
printk("lzo1x phy addr errors \n");
return LZO_OTHER_ERROR;
}
spin_lock(&zipenc_lock);
ZipEnc_SetSrcCfg(phy_src_addr , ZIP_WORK_LENGTH);
ZipEnc_SetDestCfg(phy_dst_addr , ZIP_WORK_LENGTH);
//dmac_flush_range(src_addr,src_addr+ZIP_WORK_LENGTH);
//dmac_flush_range(dst_addr,dst_addr+ZIP_WORK_LENGTH);
ZipEnc_Run();
spin_unlock(&zipenc_lock);
if(Zip_Enc_Wait_Pool(ZIPENC_DONE_INT))
{
printk("zip enc error\n");
return LZO_HW_ERROR;
}
ol_sts=ZipEnc_Get_Ol_Sts();
if(ol_sts)
{
return LZO_HW_OUT_LEN_ERROR;
}
else
{
len=ZipEnc_Get_Comp_Len();
if(len >= ZIP_WORK_LENGTH )
{
return LZO_HW_OUT_LEN_ERROR;
}
}
*dst_len = len;
return 0;
}
int lzo1x_1_compress_hw(const unsigned char *src , size_t src_len , unsigned char *dst , size_t *dst_len , void *wrkmen)
{
volatile u32 enc_len;
volatile int ret;
u32 src_addr =(u32)src;
u32 dst_addr =(u32)dst;
if (!dst || !dst_len || !src || (src_len!=PAGE_SIZE))
{
printk("zip compress input parameter error \n");
return LZO_HW_IN_PARA_ERROR;
}
//printk("lzo hw compress \r\n");
if(ret=_lzo1x_1_hw_compress((u32)src_addr ,src_len , dst_addr ,&enc_len))
{
//printk("lzo compress error ret:%d\n",ret);
if(ret== LZO_HW_OUT_LEN_ERROR)
return ret;
ZipEnc_Restart();
*dst_len=enc_len;
if(ret==LZO_HW_ERROR)
return LZO_HW_ERROR;
else
return LZO_OTHER_ERROR;
}
*dst_len=enc_len;
return LZO_HW_OK;
}
#ifndef CONFIG_64BIT
int lzo1x_1_compress_hw(const unsigned char *src , size_t src_len , unsigned char *dst , size_t *dst_len , void *wrkmen)
{
return ZipEnc_compress(src,src_len,dst,dst_len,wrkmen);
}
unsigned int get_zip_type(void)
{
static unsigned int lzo_algo_type = 0;
static int read_chip_cnt = 0;
int chip_id;
if(!read_chip_cnt)
{
read_chip_cnt = 1;
chip_id = sci_get_chip_id();
if((chip_id==0x7715a000)||(chip_id==0x7715a001)||(chip_id==0x8815a000))
{
lzo_algo_type = 1;
}
printk("lzo zip type %d is %s zip\r\n",lzo_algo_type, lzo_algo_type ? "sw" : "hw");
}
return lzo_algo_type;
}
static int __init ZipEnc_Init(void)
{
int ret;
printk("%s\r\n", __func__);
ZipEnc_Enable();
//ZipEnc_Reset();
CHIP_REG_OR(ZIPENC_CTRL , ZIPENC_EN);
ZipEnc_In_Swt(zipenc_param.in_switch_mode);
ZipEnc_Out_Swt(zipenc_param.out_switch_mode);
ZipEnc_LengthLimitMode();
ZipEnc_InQueue_Clr();
ZipEnc_OutQueue_Clr();
if(zipenc_param.wait_mode == ZIPENC_WAIT_INT)
{
ZipEnc_RegCallback(ZIPENC_DONE_INT,ZipEnc_Callback_Done);
ZipEnc_RegCallback(ZIPENC_TIMEOUT_INT,ZipEnc_Callback_Timeout);
ZipEnc_IntEn(ZIPENC_DONE_INT);
ZipEnc_IntEn(ZIPENC_TIMEOUT_INT);
ret = request_irq( zipenc_param.int_num, ZipEnc_IsrHandler,0,"zip enc",NULL);
if(ret)
{
printk("zip enc request irq error\n");
return -1;
}
}
Zip_Enc_Wait = ((zipenc_param.wait_mode==ZIPENC_WAIT_INT)? (Zip_Enc_Wait_Int) : (Zip_Enc_Wait_Pool));
ZipEnc_compress = get_zip_type() ? lzo1x_1_compress : _lzo1x_1_compress_hw;
return 0;
}
static void ZipEnc_DeInit(void)
{
ZipEnc_Disable();
if(zipenc_param.work_mode==ZIPENC_QUEUE)
{
ZipEnc_InQueue_Clr();
ZipEnc_OutQueue_Clr();
}
if(zipenc_param.wait_mode==ZIPENC_WAIT_INT)
{
ZipEnc_IntDisable(ZIPENC_DONE_INT);
ZipEnc_UNRegCallback(ZIPENC_DONE_INT);
ZipEnc_UNRegCallback(ZIPENC_TIMEOUT_INT);
free_irq(zipenc_param.int_num,NULL);
}
}
module_init(ZipEnc_Init);
module_exit(ZipEnc_DeInit);
EXPORT_SYMBOL_GPL(lzo1x_1_compress_hw);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("LZO1X-1 HW Compressor");
#endif
|
