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
|
/*
* Shared Transport Line discipline driver Core
* Init Manager Module header file
* Copyright (C) 2009 Texas Instruments
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef ST_KIM_H
#define ST_KIM_H
#include <linux/types.h>
#include "st.h"
#include "st_core.h"
#include "st_ll.h"
#include <linux/rfkill.h>
/* time in msec to wait for
* line discipline to be installed
*/
#define LDISC_TIME 500
#define CMD_RESP_TIME 500
#define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \
| ((unsigned short)((unsigned char)(b))) << 8))
#define GPIO_HIGH 1
#define GPIO_LOW 0
/* the Power-On-Reset logic, requires to attempt
* to download firmware onto chip more than once
* since the self-test for chip takes a while
*/
#define POR_RETRY_COUNT 5
/**
* struct chip_version - save the chip version
*/
struct chip_version {
unsigned short full;
unsigned short chip;
unsigned short min_ver;
unsigned short maj_ver;
};
/**
* struct kim_data_s - the KIM internal data, embedded as the
* platform's drv data. One for each ST device in the system.
* @uim_pid: KIM needs to communicate with UIM to request to install
* the ldisc by opening UART when protocol drivers register.
* @kim_pdev: the platform device added in one of the board-XX.c file
* in arch/XX/ directory, 1 for each ST device.
* @kim_rcvd: completion handler to notify when data was received,
* mainly used during fw download, which involves multiple send/wait
* for each of the HCI-VS commands.
* @ldisc_installed: completion handler to notify that the UIM accepted
* the request to install ldisc, notify from tty_open which suggests
* the ldisc was properly installed.
* @resp_buffer: data buffer for the .bts fw file name.
* @fw_entry: firmware class struct to request/release the fw.
* @gpios: the list of core/chip enable gpios for BT, FM and GPS cores.
* @rx_state: the rx state for kim's receive func during fw download.
* @rx_count: the rx count for the kim's receive func during fw download.
* @rx_skb: all of fw data might not come at once, and hence data storage for
* whole of the fw response, only HCI_EVENTs and hence diff from ST's
* response.
* @rfkill: rfkill data for each of the cores to be registered with rfkill.
* @rf_protos: proto types of the data registered with rfkill sub-system.
* @core_data: ST core's data, which mainly is the tty's disc_data
* @version: chip version available via a sysfs entry.
*
*/
struct kim_data_s {
long uim_pid;
struct platform_device *kim_pdev;
struct completion kim_rcvd, ldisc_installed;
char resp_buffer[30];
const struct firmware *fw_entry;
long gpios[ST_MAX];
unsigned long rx_state;
unsigned long rx_count;
struct sk_buff *rx_skb;
struct rfkill *rfkill[ST_MAX];
enum proto_type rf_protos[ST_MAX];
struct st_data_s *core_data;
struct chip_version version;
};
/**
* functions called when 1 of the protocol drivers gets
* registered, these need to communicate with UIM to request
* ldisc installed, read chip_version, download relevant fw
*/
long st_kim_start(void *);
long st_kim_stop(void *);
void st_kim_recv(void *, const unsigned char *, long count);
void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state);
void st_kim_complete(void *);
void kim_st_list_protocols(struct st_data_s *, void *);
/*
* BTS headers
*/
#define ACTION_SEND_COMMAND 1
#define ACTION_WAIT_EVENT 2
#define ACTION_SERIAL 3
#define ACTION_DELAY 4
#define ACTION_RUN_SCRIPT 5
#define ACTION_REMARKS 6
/**
* struct bts_header - the fw file is NOT binary which can
* be sent onto TTY as is. The .bts is more a script
* file which has different types of actions.
* Each such action needs to be parsed by the KIM and
* relevant procedure to be called.
*/
struct bts_header {
uint32_t magic;
uint32_t version;
uint8_t future[24];
uint8_t actions[0];
} __attribute__ ((packed));
/**
* struct bts_action - Each .bts action has its own type of
* data.
*/
struct bts_action {
uint16_t type;
uint16_t size;
uint8_t data[0];
} __attribute__ ((packed));
struct bts_action_send {
uint8_t data[0];
} __attribute__ ((packed));
struct bts_action_wait {
uint32_t msec;
uint32_t size;
uint8_t data[0];
} __attribute__ ((packed));
struct bts_action_delay {
uint32_t msec;
} __attribute__ ((packed));
struct bts_action_serial {
uint32_t baud;
uint32_t flow_control;
} __attribute__ ((packed));
/**
* struct hci_command - the HCI-VS for intrepreting
* the change baud rate of host-side UART, which
* needs to be ignored, since UIM would do that
* when it receives request from KIM for ldisc installation.
*/
struct hci_command {
uint8_t prefix;
uint16_t opcode;
uint8_t plen;
uint32_t speed;
} __attribute__ ((packed));
#endif /* ST_KIM_H */
|
