path: root/src/bt_vendor_brcm.c (plain)
blob: 9bd89227781e5d86e41633642be7a40936c7d594

1	/******************************************************************************
2	*
3	* Copyright (C) 2009-2012 Broadcom Corporation
4	*
5	* Licensed under the Apache License, Version 2.0 (the "License");
6	* you may not use this file except in compliance with the License.
7	* You may obtain a copy of the License at:
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*
17	******************************************************************************/
18
19	/******************************************************************************
20	*
21	* Filename: bt_vendor_brcm.c
22	*
23	* Description: Broadcom vendor specific library implementation
24	*
25	******************************************************************************/
26
27	#define LOG_TAG "bt_vendor"
28
29	#include <utils/Log.h>
30	#include "bt_vendor_brcm.h"
31	#include "upio.h"
32	#include "userial_vendor.h"
33
34	#ifndef BTVND_DBG
35	#define BTVND_DBG FALSE
36	#endif
37
38	#if (BTVND_DBG == TRUE)
39	#define BTVNDDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
40	#else
41	#define BTVNDDBG(param, ...) {}
42	#endif
43
44	/******************************************************************************
45	** Externs
46	******************************************************************************/
47
48	void hw_config_start(void);
49	uint8_t hw_lpm_enable(uint8_t turn_on);
50	uint32_t hw_lpm_get_idle_timeout(void);
51	void hw_lpm_set_wake_state(uint8_t wake_assert);
52	#if (SCO_CFG_INCLUDED == TRUE)
53	void hw_sco_config(void);
54	#endif
55	void vnd_load_conf(const char *p_path);
56
57	/******************************************************************************
58	** Variables
59	******************************************************************************/
60
61	bt_vendor_callbacks_t *bt_vendor_cbacks = NULL;
62	uint8_t vnd_local_bd_addr[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
63
64	/******************************************************************************
65	** Local type definitions
66	******************************************************************************/
67
68	/******************************************************************************
69	** Static Variables
70	******************************************************************************/
71
72	static const tUSERIAL_CFG userial_init_cfg =
73	{
74	(USERIAL_DATABITS_8 | USERIAL_PARITY_NONE | USERIAL_STOPBITS_1),
75	USERIAL_BAUD_115200
76	};
77
78	/******************************************************************************
79	** Functions
80	******************************************************************************/
81
82	/*****************************************************************************
83	**
84	** BLUETOOTH VENDOR INTERFACE LIBRARY FUNCTIONS
85	**
86	*****************************************************************************/
87
88	static int init(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr)
89	{
90	ALOGI("init");
91
92	if (p_cb == NULL)
93	{
94	ALOGE("init failed with no user callbacks!");
95	return -1;
96	}
97
98	#if (VENDOR_LIB_RUNTIME_TUNING_ENABLED == TRUE)
99	ALOGW("*****************************************************************");
100	ALOGW("*****************************************************************");
101	ALOGW("** Warning - BT Vendor Lib is loaded in debug tuning mode!");
102	ALOGW("**");
103	ALOGW("** If this is not intentional, rebuild libbt-vendor.so ");
104	ALOGW("** with VENDOR_LIB_RUNTIME_TUNING_ENABLED=FALSE and ");
105	ALOGW("** check if any run-time tuning parameters needed to be");
106	ALOGW("** carried to the build-time configuration accordingly.");
107	ALOGW("*****************************************************************");
108	ALOGW("*****************************************************************");
109	#endif
110
111	userial_vendor_init();
112	upio_init();
113
114	vnd_load_conf(VENDOR_LIB_CONF_FILE);
115
116	/* store reference to user callbacks */
117	bt_vendor_cbacks = (bt_vendor_callbacks_t *) p_cb;
118
119	/* This is handed over from the stack */
120	memcpy(vnd_local_bd_addr, local_bdaddr, 6);
121
122	return 0;
123	}
124
125
126	/** Requested operations */
127	static int op(bt_vendor_opcode_t opcode, void *param)
128	{
129	int retval = 0;
130
131	BTVNDDBG("op for %d", opcode);
132
133	switch(opcode)
134	{
135	case BT_VND_OP_POWER_CTRL:
136	{
137	int *state = (int *) param;
138	if (*state == BT_VND_PWR_OFF)
139	upio_set_bluetooth_power(UPIO_BT_POWER_OFF);
140	else if (*state == BT_VND_PWR_ON)
141	upio_set_bluetooth_power(UPIO_BT_POWER_ON);
142	}
143	break;
144
145	case BT_VND_OP_FW_CFG:
146	{
147	hw_config_start();
148	}
149	break;
150
151	case BT_VND_OP_SCO_CFG:
152	{
153	#if (SCO_CFG_INCLUDED == TRUE)
154	hw_sco_config();
155	#else
156	retval = -1;
157	#endif
158	}
159	break;
160
161	case BT_VND_OP_USERIAL_OPEN:
162	{
163	int (*fd_array)[] = (int (*)[]) param;
164	int fd, idx;
165	fd = userial_vendor_open((tUSERIAL_CFG *) &userial_init_cfg);
166	if (fd != -1)
167	{
168	for (idx=0; idx < CH_MAX; idx++)
169	(*fd_array)[idx] = fd;
170
171	retval = 1;
172	}
173	/* retval contains numbers of open fd of HCI channels */
174	}
175	break;
176
177	case BT_VND_OP_USERIAL_CLOSE:
178	{
179	userial_vendor_close();
180	}
181	break;
182
183	case BT_VND_OP_GET_LPM_IDLE_TIMEOUT:
184	{
185	uint32_t *timeout_ms = (uint32_t *) param;
186	*timeout_ms = hw_lpm_get_idle_timeout();
187	}
188	break;
189
190	case BT_VND_OP_LPM_SET_MODE:
191	{
192	uint8_t *mode = (uint8_t *) param;
193	retval = hw_lpm_enable(*mode);
194	}
195	break;
196
197	case BT_VND_OP_LPM_WAKE_SET_STATE:
198	{
199	uint8_t *state = (uint8_t *) param;
200	uint8_t wake_assert = (*state == BT_VND_LPM_WAKE_ASSERT) ? \
201	TRUE : FALSE;
202
203	hw_lpm_set_wake_state(wake_assert);
204	}
205	break;
206	}
207
208	return retval;
209	}
210
211	/** Closes the interface */
212	static void cleanup( void )
213	{
214	BTVNDDBG("cleanup");
215
216	upio_cleanup();
217
218	bt_vendor_cbacks = NULL;
219	}
220
221	// Entry point of DLib
222	const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
223	sizeof(bt_vendor_interface_t),
224	init,
225	op,
226	cleanup
227	};
228