1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  * Copyright 2017 Joyent, Inc.
26  */
27 
28 #ifndef _SYS_1394_TARGETS_DCAM1394_DCAM_H
29 #define	_SYS_1394_TARGETS_DCAM1394_DCAM_H
30 
31 #include <sys/modctl.h>
32 #include <sys/ksynch.h>
33 #include <sys/types.h>
34 #include <sys/dditypes.h>
35 #include <sys/1394/t1394.h>
36 #include <sys/dcam/dcam1394_io.h>
37 
38 #ifdef	__cplusplus
39 extern "C" {
40 #endif
41 
42 #define	ILP32_PTR_SIZE	4	/* caller's data model type	*/
43 #define	LP64_PTR_SIZE 	8
44 
45 #define	DCAM_POWER_OFF	0	/* power management state	*/
46 #define	DCAM_POWER_ON	1
47 
48 #define	DCAM1394_MINOR_CTRL	0x80		/* this is the control device */
49 
50 #define	DCAM1394_FLAG_ATTACH_COMPLETE	0x1  /* dcam_attach() is complete */
51 #define	DCAM1394_FLAG_OPEN		0x2  /* driver is open */
52 #define	DCAM1394_FLAG_OPEN_CAPTURE	0x4  /* device is open for capture */
53 #define	DCAM1394_FLAG_OPEN_CONTROL	0x8  /* device is open for control */
54 #define	DCAM1394_FLAG_FRAME_RCV_INIT	0x10
55 #define	DCAM1394_FLAG_FRAME_RCVING	0x20
56 #define	DCAM1394_FLAG_READ_REQ_PROC	0x40
57 #define	DCAM1394_FLAG_READ_REQ_INVALID	0x80
58 
59 #define	IS_VALID	0x1
60 #define	IS_PRESENT	0x2
61 #define	CAP_GET		0x4
62 #define	CAP_SET		0x8
63 #define	CAP_CTRL_SET	0x10
64 
65 #define	MAX_STR_LEN	50
66 
67 #define	DEV_TO_INSTANCE(d) (getminor(d) & 0x7f)
68 
69 typedef uint_t
70     dcam1394_param_attr_t[DCAM1394_NUM_PARAM][DCAM1394_NUM_SUBPARAM];
71 
72 typedef struct buff_info_s {
73 	uint_t			vid_mode;
74 	unsigned int		seq_num;
75 	hrtime_t		timestamp;
76 	caddr_t			kaddr_p;		/* kernel data buffer */
77 	ddi_dma_handle_t	dma_handle;		/* bind handle */
78 	ddi_acc_handle_t	data_acc_handle;  	/* acc handle */
79 	ddi_dma_cookie_t	dma_cookie;		/* cookie */
80 	size_t			real_len;    		/* mem len */
81 	uint_t			dma_cookie_count;	/* cookie count */
82 } buff_info_t;
83 
84 #define	MAX_NUM_READ_PTRS 1
85 
86 typedef struct ring_buff_s {
87 	size_t		 num_buffs;
88 	size_t		 buff_num_bytes;
89 	buff_info_t	*buff_info_array_p;
90 	int		 num_read_ptrs;
91 	int		 read_ptr_incr_val;
92 	size_t		 read_ptr_pos[MAX_NUM_READ_PTRS];
93 	uint_t		 status[MAX_NUM_READ_PTRS];
94 	size_t		 write_ptr_pos;
95 } ring_buff_t;
96 
97 typedef struct dcam_state_s {
98 	dev_info_t			*dip;
99 	int				instance;
100 	int				usr_model;
101 	t1394_handle_t			sl_handle;
102 	t1394_attachinfo_t		attachinfo;
103 	t1394_targetinfo_t		targetinfo;
104 	t1394_isoch_singleinfo_t	sii;
105 	t1394_isoch_single_out_t	sii_output_args;
106 	t1394_isoch_single_handle_t	sii_hdl;
107 	t1394_isoch_dma_handle_t 	isoch_handle;
108 	kmutex_t			softc_mutex;
109 	kmutex_t			dcam_frame_is_done_mutex;
110 	dcam1394_param_attr_t		param_attr;
111 
112 	ixl1394_command_t		*ixlp;
113 
114 	ring_buff_t			*ring_buff_p;
115 	unsigned int			seq_count;
116 	uint_t				reader_flags[MAX_NUM_READ_PTRS];
117 	uint_t				flags;
118 	int				cur_vid_mode;
119 	int				cur_frame_rate;
120 	int				cur_ring_buff_capacity;
121 	int				param_status;
122 	int				camera_online;
123 	int				pm_open_count;
124 	int				pm_cable_power;
125 	int				suspended;
126 	ddi_callback_id_t		event_id;
127 } dcam_state_t;
128 
129 int _init(void);
130 int _info(struct modinfo *modinfop);
131 int _fini(void);
132 
133 int dcam_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
134 int dcam_power(dev_info_t *dip, int component, int level);
135 int dcam_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result);
136 int dcam_identify(dev_info_t *dip);
137 int dcam_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
138 int dcam_open(dev_t *devp, int flag, int otyp, cred_t *credp);
139 int dcam_close(dev_t dev, int flags, int otyp, cred_t *credp);
140 int dcam_read(dev_t dev, struct uio *uio, cred_t *credp);
141 int dcam_write(dev_t dev, struct uio *uio, cred_t *credp);
142 int dcam_mmap(dev_t dev, off_t off, int prot);
143 int dcam_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len,
144     size_t *maplen, uint_t model);
145 int dcam_ioctl(dev_t dev, int cmd, intptr_t arg, int mode,
146     cred_t *credp, int *rvalp);
147 int dcam_chpoll(dev_t dev, short events, int anyyet, short *reventsp,
148     struct pollhead **phpp);
149 int dcam_intr(caddr_t dcam_softc_p);
150 void dcam_bus_reset_notify(dev_info_t *dip, ddi_eventcookie_t ev_cookie,
151     void *arg, void *impl_data);
152 
153 
154 ring_buff_t *ring_buff_create(dcam_state_t *softc_p, size_t num_buffs,
155     size_t buff_num_bytes);
156 void ring_buff_free(dcam_state_t *softc_p, ring_buff_t *ring_buff_p);
157 int ring_buff_reader_add(ring_buff_t *ring_buff_p);
158 int ring_buff_reader_remove(ring_buff_t *ring_buff_p, int reader_id);
159 buff_info_t *ring_buff_read_ptr_buff_get(ring_buff_t *ring_buff_p, int
160     reader_id);
161 size_t ring_buff_read_ptr_pos_get(ring_buff_t *ring_buff_p, int read_ptr_id);
162 void ring_buff_read_ptr_incr(ring_buff_t *ring_buff_p, int read_ptr_id);
163 size_t ring_buff_write_ptr_pos_get(ring_buff_t *ring_buff_p);
164 void ring_buff_write_ptr_incr(ring_buff_t *ring_buff_p);
165 int dcam_frame_rcv_stop(dcam_state_t *softc_p);
166 int dcam1394_ioctl_frame_rcv_start(dcam_state_t *softc_p);
167 
168 #ifdef	__cplusplus
169 }
170 #endif
171 
172 #endif	/* _SYS_1394_TARGETS_DCAM1394_DCAM_H */
173