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
|
/***************************************************************************
* Copyright (c) 2005-2009, Broadcom Corporation.
*
* Name: crystalhd_misc . h
*
* Description:
* BCM70012 Linux driver general purpose routines.
* Includes reg/mem read and write routines.
*
* HISTORY:
*
**********************************************************************
* This file is part of the crystalhd device driver.
*
* This driver is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
* This driver is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this driver. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#ifndef _CRYSTALHD_MISC_H_
#define _CRYSTALHD_MISC_H_
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/ioctl.h>
#include <linux/dma-mapping.h>
#include <linux/sched.h>
#include <asm/system.h>
#include "bc_dts_glob_lnx.h"
/* Global log level variable defined in crystal_misc.c file */
extern uint32_t g_linklog_level;
/* Global element pool for all Queue management.
* TX: Active = BC_TX_LIST_CNT, Free = BC_TX_LIST_CNT.
* RX: Free = BC_RX_LIST_CNT, Active = 2
* FW-CMD: 4
*/
#define BC_LINK_ELEM_POOL_SZ ((BC_TX_LIST_CNT * 2) + BC_RX_LIST_CNT + 2 + 4)
/* Driver's IODATA pool count */
#define CHD_IODATA_POOL_SZ (BC_IOCTL_DATA_POOL_SIZE * BC_LINK_MAX_OPENS)
/* Scatter Gather memory pool size for Tx and Rx */
#define BC_LINK_SG_POOL_SZ (BC_TX_LIST_CNT + BC_RX_LIST_CNT)
enum _crystalhd_dio_sig {
crystalhd_dio_inv = 0,
crystalhd_dio_locked,
crystalhd_dio_sg_mapped,
};
struct crystalhd_dio_user_info {
void *xfr_buff;
uint32_t xfr_len;
uint32_t uv_offset;
bool dir_tx;
uint32_t uv_sg_ix;
uint32_t uv_sg_off;
int comp_sts;
int ev_sts;
uint32_t y_done_sz;
uint32_t uv_done_sz;
uint32_t comp_flags;
bool b422mode;
};
typedef struct _crystalhd_dio_req {
uint32_t sig;
uint32_t max_pages;
struct page **pages;
struct scatterlist *sg;
int sg_cnt;
int page_cnt;
int direction;
struct crystalhd_dio_user_info uinfo;
void *fb_va;
uint32_t fb_size;
dma_addr_t fb_pa;
struct _crystalhd_dio_req *next;
} crystalhd_dio_req;
#define BC_LINK_DIOQ_SIG (0x09223280)
typedef struct _crystalhd_elem_s {
struct _crystalhd_elem_s *flink;
struct _crystalhd_elem_s *blink;
void *data;
uint32_t tag;
} crystalhd_elem_t;
typedef void (*crystalhd_data_free_cb)(void *context, void *data);
typedef struct _crystalhd_dioq_s {
uint32_t sig;
struct crystalhd_adp *adp;
crystalhd_elem_t *head;
crystalhd_elem_t *tail;
uint32_t count;
spinlock_t lock;
wait_queue_head_t event;
crystalhd_data_free_cb data_rel_cb;
void *cb_context;
} crystalhd_dioq_t;
typedef void (*hw_comp_callback)(crystalhd_dio_req *,
wait_queue_head_t *event, BC_STATUS sts);
/*========= Decoder (7412) register access routines.================= */
uint32_t bc_dec_reg_rd(struct crystalhd_adp *, uint32_t);
void bc_dec_reg_wr(struct crystalhd_adp *, uint32_t, uint32_t);
/*========= Link (70012) register access routines.. =================*/
uint32_t crystalhd_reg_rd(struct crystalhd_adp *, uint32_t);
void crystalhd_reg_wr(struct crystalhd_adp *, uint32_t, uint32_t);
/*========= Decoder (7412) memory access routines..=================*/
BC_STATUS crystalhd_mem_rd(struct crystalhd_adp *, uint32_t, uint32_t, uint32_t *);
BC_STATUS crystalhd_mem_wr(struct crystalhd_adp *, uint32_t, uint32_t, uint32_t *);
/*==========Link (70012) PCIe Config access routines.================*/
BC_STATUS crystalhd_pci_cfg_rd(struct crystalhd_adp *, uint32_t, uint32_t, uint32_t *);
BC_STATUS crystalhd_pci_cfg_wr(struct crystalhd_adp *, uint32_t, uint32_t, uint32_t);
/*========= Linux Kernel Interface routines. ======================= */
void *bc_kern_dma_alloc(struct crystalhd_adp *, uint32_t, dma_addr_t *);
void bc_kern_dma_free(struct crystalhd_adp *, uint32_t,
void *, dma_addr_t);
#define crystalhd_create_event(_ev) init_waitqueue_head(_ev)
#define crystalhd_set_event(_ev) wake_up_interruptible(_ev)
#define crystalhd_wait_on_event(ev, condition, timeout, ret, nosig) \
do { \
DECLARE_WAITQUEUE(entry, current); \
unsigned long end = jiffies + ((timeout * HZ) / 1000); \
ret = 0; \
add_wait_queue(ev, &entry); \
for (;;) { \
__set_current_state(TASK_INTERRUPTIBLE); \
if (condition) { \
break; \
} \
if (time_after_eq(jiffies, end)) { \
ret = -EBUSY; \
break; \
} \
schedule_timeout((HZ / 100 > 1) ? HZ / 100 : 1); \
if (!nosig && signal_pending(current)) { \
ret = -EINTR; \
break; \
} \
} \
__set_current_state(TASK_RUNNING); \
remove_wait_queue(ev, &entry); \
} while (0)
/*================ Direct IO mapping routines ==================*/
extern int crystalhd_create_dio_pool(struct crystalhd_adp *, uint32_t);
extern void crystalhd_destroy_dio_pool(struct crystalhd_adp *);
extern BC_STATUS crystalhd_map_dio(struct crystalhd_adp *, void *, uint32_t,
uint32_t, bool, bool, crystalhd_dio_req**);
extern BC_STATUS crystalhd_unmap_dio(struct crystalhd_adp *, crystalhd_dio_req*);
#define crystalhd_get_sgle_paddr(_dio, _ix) (cpu_to_le64(sg_dma_address(&_dio->sg[_ix])))
#define crystalhd_get_sgle_len(_dio, _ix) (cpu_to_le32(sg_dma_len(&_dio->sg[_ix])))
/*================ General Purpose Queues ==================*/
extern BC_STATUS crystalhd_create_dioq(struct crystalhd_adp *, crystalhd_dioq_t **, crystalhd_data_free_cb , void *);
extern void crystalhd_delete_dioq(struct crystalhd_adp *, crystalhd_dioq_t *);
extern BC_STATUS crystalhd_dioq_add(crystalhd_dioq_t *ioq, void *data, bool wake, uint32_t tag);
extern void *crystalhd_dioq_fetch(crystalhd_dioq_t *ioq);
extern void *crystalhd_dioq_find_and_fetch(crystalhd_dioq_t *ioq, uint32_t tag);
extern void *crystalhd_dioq_fetch_wait(crystalhd_dioq_t *ioq, uint32_t to_secs, uint32_t *sig_pend);
#define crystalhd_dioq_count(_ioq) ((_ioq) ? _ioq->count : 0)
extern int crystalhd_create_elem_pool(struct crystalhd_adp *, uint32_t);
extern void crystalhd_delete_elem_pool(struct crystalhd_adp *);
/*================ Debug routines/macros .. ================================*/
extern void crystalhd_show_buffer(uint32_t off, uint8_t *buff, uint32_t dwcount);
enum _chd_log_levels {
BCMLOG_ERROR = 0x80000000, /* Don't disable this option */
BCMLOG_DATA = 0x40000000, /* Data, enable by default */
BCMLOG_SPINLOCK = 0x20000000, /* Spcial case for Spin locks*/
/* Following are allowed only in debug mode */
BCMLOG_INFO = 0x00000001, /* Generic informational */
BCMLOG_DBG = 0x00000002, /* First level Debug info */
BCMLOG_SSTEP = 0x00000004, /* Stepping information */
BCMLOG_ENTER_LEAVE = 0x00000008, /* stack tracking */
};
#define BCMLOG_ENTER \
if (g_linklog_level & BCMLOG_ENTER_LEAVE) { \
printk("Entered %s\n", __func__); \
}
#define BCMLOG_LEAVE \
if (g_linklog_level & BCMLOG_ENTER_LEAVE) { \
printk("Leaving %s\n", __func__); \
}
#define BCMLOG(trace, fmt, args...) \
if (g_linklog_level & trace) { \
printk(fmt, ##args); \
}
#define BCMLOG_ERR(fmt, args...) \
do { \
if (g_linklog_level & BCMLOG_ERROR) { \
printk("*ERR*:%s:%d: "fmt, __FILE__, __LINE__, ##args); \
} \
} while (0);
#endif
|
