WebSVN – HelenOS – Diff – /branches/sparc/uspace/srv/kbd/arch/sparc64/src/sgcn.c


/*
 * Copyright (c) 2008 Pavel Rimsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup kbdsparc64 sparc64
 * @brief   Serengeti-specific parts of uspace keyboard handler.
 * @ingroup  kbd
 * @{
 */
/** @file
 */
 
#include <arch/sgcn.h>
#include <as.h>
#include <ddi.h>
#include <ipc/ipc.h>
#include <kbd.h>
#include <genarch/nofb.h>
#include <genarch/kbd.h>
#include <sysinfo.h>
#include <stdio.h>
#include <futex.h>
 
/**
 * SGCN buffer header. It is placed at the very beginning of the SGCN
 * buffer.
 */
typedef struct {
    /** hard-wired to "CON" */
    char magic[4];
   
    /** we don't need this */
    char unused[8];
   
    /** offset within the SGCN buffer of the input buffer start */
    uint32_t in_begin;
   
    /** offset within the SGCN buffer of the input buffer end */
    uint32_t in_end;
   
    /** offset within the SGCN buffer of the input buffer read pointer */
    uint32_t in_rdptr;
   
    /** offset within the SGCN buffer of the input buffer write pointer */
    uint32_t in_wrptr;
 
 
 
 
 
 
 
 
 
 
 
 
} __attribute__ ((packed)) sgcn_buffer_header_t;
 
/*
 * Returns a pointer to the object of a given type which is placed at the given
 * offset from the console buffer beginning.
 */
#define SGCN_BUFFER(type, offset) \
        ((type *) (sram_virt_addr + sram_buffer_offset + (offset)))
 
/** Returns a pointer to the console buffer header. */
#define SGCN_BUFFER_HEADER  (SGCN_BUFFER(sgcn_buffer_header_t, 0))
 
extern keybuffer_t keybuffer;
 
/**
 * Virtual address mapped to SRAM.
 */
static uintptr_t sram_virt_addr;
 
/**
 * SGCN buffer offset within SGCN.
 */
static uintptr_t sram_buffer_offset;
 
/**
 * Initializes the SGCN driver.
 * Maps the physical memory (SRAM) and registers the interrupt.
 */
void sgcn_init(void)
{
    sram_virt_addr = (uintptr_t) as_get_mappable_page(sysinfo_value("sram.area.size"));
    int result = physmem_map(
        (void *) sysinfo_value("sram.address.physical"),
        (void *) sram_virt_addr,
        sysinfo_value("sram.area.size") / PAGE_SIZE,
        AS_AREA_READ | AS_AREA_WRITE
        );
    if (result != 0) {
        printf("SGCN: uspace driver could not map physical memory.");
    }
   
    sram_buffer_offset = sysinfo_value("sram.buffer.offset");
    ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
        0, (void *) 0);
}
 
 
 
/**
 * Handler of the "key pressed" event. Reads codes of all the pressed keys from
 * the buffer.
 */
void sgcn_key_pressed(void)
{
    char c;
   
    uint32_t begin = SGCN_BUFFER_HEADER->in_begin;
    uint32_t end = SGCN_BUFFER_HEADER->in_end;
    uint32_t size = end - begin;
   
    volatile char *buf_ptr = (volatile char *)
        SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
    volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);
    volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);
   
    while (*in_rdptr_ptr != *in_wrptr_ptr) {
        c = *buf_ptr;
        *in_rdptr_ptr = (((*in_rdptr_ptr) - begin + 1) % size) + begin;
        buf_ptr = (volatile char *)
            SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
        printf("Pressed character %c.\n", c);
        if (c == '\r') {
                        c = '\n';
                }
 
        kbd_process_no_fb(&keybuffer, c);
    }
}
 
/** @}
 */

Rev 3549	Rev 3582
1	/*	1	/*
2	* Copyright (c) 2008 Pavel Rimsky	2	* Copyright (c) 2008 Pavel Rimsky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup kbdsparc64 sparc64	29	/** @addtogroup kbdsparc64 sparc64
30	* @brief Serengeti-specific parts of uspace keyboard handler.	30	* @brief Serengeti-specific parts of uspace keyboard handler.
31	* @ingroup kbd	31	* @ingroup kbd
32	* @{	32	* @{
33	*/	33	*/
34	/** @file	34	/** @file
35	*/	35	*/
36		36
37	#include <arch/sgcn.h>	37	#include <arch/sgcn.h>
38	#include <as.h>	38	#include <as.h>
39	#include <ddi.h>	39	#include <ddi.h>
40	#include <ipc/ipc.h>	40	#include <ipc/ipc.h>
41	#include <kbd.h>	41	#include <kbd.h>
42	#include <genarch/nofb.h>	42	#include <genarch/nofb.h>
43	#include <genarch/kbd.h>	43	#include <genarch/kbd.h>
44	#include <sysinfo.h>	44	#include <sysinfo.h>
45	#include <stdio.h>	45	#include <stdio.h>
46	#include <futex.h>	46	#include <futex.h>
47		47
48	/**	48	/**
49	* SGCN buffer header. It is placed at the very beginning of the SGCN	49	* SGCN buffer header. It is placed at the very beginning of the SGCN
50	* buffer.	50	* buffer.
51	*/	51	*/
52	typedef struct {	52	typedef struct {
53	/** hard-wired to "CON" */	53	/** hard-wired to "CON" */
54	char magic[4];	54	char magic[4];
55		55
56	/** we don't need this */	56	/** we don't need this */
57	char unused[8];	57	char unused[8];
58		58
59	/** offset within the SGCN buffer of the input buffer start */	59	/** offset within the SGCN buffer of the input buffer start */
60	uint32_t in_begin;	60	uint32_t in_begin;
61		61
62	/** offset within the SGCN buffer of the input buffer end */	62	/** offset within the SGCN buffer of the input buffer end */
63	uint32_t in_end;	63	uint32_t in_end;
64		64
65	/** offset within the SGCN buffer of the input buffer read pointer */	65	/** offset within the SGCN buffer of the input buffer read pointer */
66	uint32_t in_rdptr;	66	uint32_t in_rdptr;
67		67
68	/** offset within the SGCN buffer of the input buffer write pointer */	68	/** offset within the SGCN buffer of the input buffer write pointer */
69	uint32_t in_wrptr;	69	uint32_t in_wrptr;
70		-
71	/** offset within the SGCN buffer of the output buffer start */	-
72	uint32_t out_begin;	-
73		-
74	/** offset within the SGCN buffer of the output buffer end */	-
75	uint32_t out_end;	-
76		-
77	/** offset within the SGCN buffer of the output buffer read pointer */	-
78	uint32_t out_rdptr;	-
79		-
80	/** offset within the SGCN buffer of the output buffer write pointer */	-
81	uint32_t out_wrptr;	-
82	} __attribute__ ((packed)) sgcn_buffer_header_t;	70	} __attribute__ ((packed)) sgcn_buffer_header_t;
83		71
84	/*	72	/*
85	* Returns a pointer to the object of a given type which is placed at the given	73	* Returns a pointer to the object of a given type which is placed at the given
86	* offset from the console buffer beginning.	74	* offset from the console buffer beginning.
87	*/	75	*/
88	#define SGCN_BUFFER(type, offset) \	76	#define SGCN_BUFFER(type, offset) \
89	((type *) (sram_virt_addr + sram_buffer_offset + (offset)))	77	((type *) (sram_virt_addr + sram_buffer_offset + (offset)))
90		78
91	/** Returns a pointer to the console buffer header. */	79	/** Returns a pointer to the console buffer header. */
92	#define SGCN_BUFFER_HEADER (SGCN_BUFFER(sgcn_buffer_header_t, 0))	80	#define SGCN_BUFFER_HEADER (SGCN_BUFFER(sgcn_buffer_header_t, 0))
93		81
94	extern keybuffer_t keybuffer;	82	extern keybuffer_t keybuffer;
95		83
96	/**	84	/**
97	* Virtual address mapped to SRAM.	85	* Virtual address mapped to SRAM.
98	*/	86	*/
99	static uintptr_t sram_virt_addr;	87	static uintptr_t sram_virt_addr;
100		88
101	/**	89	/**
102	* SGCN buffer offset within SGCN.	90	* SGCN buffer offset within SGCN.
103	*/	91	*/
104	static uintptr_t sram_buffer_offset;	92	static uintptr_t sram_buffer_offset;
105		93
106	/**	94	/**
107	* Initializes the SGCN driver.	95	* Initializes the SGCN driver.
108	* Maps the physical memory (SRAM) and registers the interrupt.	96	* Maps the physical memory (SRAM) and registers the interrupt.
109	*/	97	*/
110	void sgcn_init(void)	98	void sgcn_init(void)
111	{	99	{
112	sram_virt_addr = (uintptr_t) as_get_mappable_page(sysinfo_value("sram.area.size"));	100	sram_virt_addr = (uintptr_t) as_get_mappable_page(sysinfo_value("sram.area.size"));
113	int result = physmem_map(	101	int result = physmem_map(
114	(void *) sysinfo_value("sram.address.physical"),	102	(void *) sysinfo_value("sram.address.physical"),
115	(void *) sram_virt_addr,	103	(void *) sram_virt_addr,
116	sysinfo_value("sram.area.size") / PAGE_SIZE,	104	sysinfo_value("sram.area.size") / PAGE_SIZE,
117	AS_AREA_READ \| AS_AREA_WRITE	105	AS_AREA_READ \| AS_AREA_WRITE
118	);	106	);
119	if (result != 0) {	107	if (result != 0) {
120	printf("SGCN: uspace driver could not map physical memory.");	108	printf("SGCN: uspace driver could not map physical memory.");
121	}	109	}
122		110
123	sram_buffer_offset = sysinfo_value("sram.buffer.offset");	111	sram_buffer_offset = sysinfo_value("sram.buffer.offset");
124	ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),	112	ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
125	0, (void *) 0);	113	0, (void *) 0);
126	}	114	}
127		115
128		-
129		-
130	/**	116	/**
131	* Handler of the "key pressed" event. Reads codes of all the pressed keys from	117	* Handler of the "key pressed" event. Reads codes of all the pressed keys from
132	* the buffer.	118	* the buffer.
133	*/	119	*/
134	void sgcn_key_pressed(void)	120	void sgcn_key_pressed(void)
135	{	121	{
136	char c;	122	char c;
137		123
138	uint32_t begin = SGCN_BUFFER_HEADER->in_begin;	124	uint32_t begin = SGCN_BUFFER_HEADER->in_begin;
139	uint32_t end = SGCN_BUFFER_HEADER->in_end;	125	uint32_t end = SGCN_BUFFER_HEADER->in_end;
140	uint32_t size = end - begin;	126	uint32_t size = end - begin;
141		127
142	volatile char buf_ptr = (volatile char )	128	volatile char buf_ptr = (volatile char )
143	SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);	129	SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
144	volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);	130	volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);
145	volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);	131	volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);
146		132
147	while (in_rdptr_ptr != in_wrptr_ptr) {	133	while (in_rdptr_ptr != in_wrptr_ptr) {
148	c = *buf_ptr;	134	c = *buf_ptr;
149	in_rdptr_ptr = (((in_rdptr_ptr) - begin + 1) % size) + begin;	135	in_rdptr_ptr = (((in_rdptr_ptr) - begin + 1) % size) + begin;
150	buf_ptr = (volatile char *)	136	buf_ptr = (volatile char *)
151	SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);	137	SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
152	printf("Pressed character %c.\n", c);	138	printf("Pressed character %c.\n", c);
153	if (c == '\r') {	139	if (c == '\r') {
154	c = '\n';	140	c = '\n';
155	}	141	}
156	//keybuffer_push(&keybuffer, c);	-
157	kbd_process_no_fb(&keybuffer, c);	142	kbd_process_no_fb(&keybuffer, c);
158	}	143	}
159	}	144	}
160		145
161	/** @}	146	/** @}
162	*/	147	*/

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(root)/branches/sparc/uspace/srv/kbd/arch/sparc64/src/sgcn.c – Rev 3549 → 3582