summaryrefslogtreecommitdiff
path: root/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
blob: 448ded8f9d24e384ae5f6fb11bf44a3a543703d7 (plain)
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
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * For License see notice in hfc_multi.c
 *
 * special IO and init functions for the embedded XHFC board
 * from Speech Design
 *
 */

#include <asm/cpm1.h>

/* Change this to the value used by your board */
#ifndef IMAP_ADDR
#define IMAP_ADDR	0xFFF00000
#endif

static void
#ifdef HFC_REGISTER_DEBUG
HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val,
	       const char *function, int line)
#else
	HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val)
#endif
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	writeb(reg, hc->xhfc_memaddr);
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	writeb(val, hc->xhfc_memdata);
}
static u_char
#ifdef HFC_REGISTER_DEBUG
HFC_inb_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
#else
	HFC_inb_embsd(struct hfc_multi *hc, u_char reg)
#endif
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	writeb(reg, hc->xhfc_memaddr);
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	return readb(hc->xhfc_memdata);
}
static u_short
#ifdef HFC_REGISTER_DEBUG
HFC_inw_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
#else
	HFC_inw_embsd(struct hfc_multi *hc, u_char reg)
#endif
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	writeb(reg, hc->xhfc_memaddr);
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	return readb(hc->xhfc_memdata);
}
static void
#ifdef HFC_REGISTER_DEBUG
HFC_wait_embsd(struct hfc_multi *hc, const char *function, int line)
#else
	HFC_wait_embsd(struct hfc_multi *hc)
#endif
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	writeb(R_STATUS, hc->xhfc_memaddr);
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	while (readb(hc->xhfc_memdata) & V_BUSY)
		cpu_relax();
}

/* write fifo data (EMBSD) */
void
write_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	*hc->xhfc_memaddr = A_FIFO_DATA0;
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	while (len) {
		*hc->xhfc_memdata = *data;
		data++;
		len--;
	}
}

/* read fifo data (EMBSD) */
void
read_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
{
	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
	*hc->xhfc_memaddr = A_FIFO_DATA0;
	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
	while (len) {
		*data = (u_char)(*hc->xhfc_memdata);
		data++;
		len--;
	}
}

static int
setup_embedded(struct hfc_multi *hc, struct hm_map *m)
{
	printk(KERN_INFO
	       "HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n",
	       m->vendor_name, m->card_name, m->clock2 ? "double" : "normal");

	hc->pci_dev = NULL;
	if (m->clock2)
		test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip);

	hc->leds = m->leds;
	hc->ledstate = 0xAFFEAFFE;
	hc->opticalsupport = m->opticalsupport;

	hc->pci_iobase = 0;
	hc->pci_membase = 0;
	hc->xhfc_membase = NULL;
	hc->xhfc_memaddr = NULL;
	hc->xhfc_memdata = NULL;

	/* set memory access methods */
	if (m->io_mode) /* use mode from card config */
		hc->io_mode = m->io_mode;
	switch (hc->io_mode) {
	case HFC_IO_MODE_EMBSD:
		test_and_set_bit(HFC_CHIP_EMBSD, &hc->chip);
		hc->slots = 128; /* required */
		hc->HFC_outb = HFC_outb_embsd;
		hc->HFC_inb = HFC_inb_embsd;
		hc->HFC_inw = HFC_inw_embsd;
		hc->HFC_wait = HFC_wait_embsd;
		hc->read_fifo = read_fifo_embsd;
		hc->write_fifo = write_fifo_embsd;
		hc->xhfc_origmembase = XHFC_MEMBASE + XHFC_OFFSET * hc->id;
		hc->xhfc_membase = (u_char *)ioremap(hc->xhfc_origmembase,
						     XHFC_MEMSIZE);
		if (!hc->xhfc_membase) {
			printk(KERN_WARNING
			       "HFC-multi: failed to remap xhfc address space. "
			       "(internal error)\n");
			return -EIO;
		}
		hc->xhfc_memaddr = (u_long *)(hc->xhfc_membase + 4);
		hc->xhfc_memdata = (u_long *)(hc->xhfc_membase);
		printk(KERN_INFO
		       "HFC-multi: xhfc_membase:%#lx xhfc_origmembase:%#lx "
		       "xhfc_memaddr:%#lx xhfc_memdata:%#lx\n",
		       (u_long)hc->xhfc_membase, hc->xhfc_origmembase,
		       (u_long)hc->xhfc_memaddr, (u_long)hc->xhfc_memdata);
		break;
	default:
		printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n");
		return -EIO;
	}

	/* Prepare the MPC8XX PortA 10 as output (address/data selector) */
	hc->immap = (struct immap *)(IMAP_ADDR);
	hc->immap->im_ioport.iop_papar &= ~(PA_XHFC_A0);
	hc->immap->im_ioport.iop_paodr &= ~(PA_XHFC_A0);
	hc->immap->im_ioport.iop_padir |=   PA_XHFC_A0;

	/* Prepare the MPC8xx PortB __X__ as input (ISDN__X__IRQ) */
	hc->pb_irqmsk = (PB_XHFC_IRQ1 << hc->id);
	hc->immap->im_cpm.cp_pbpar &= ~(hc->pb_irqmsk);
	hc->immap->im_cpm.cp_pbodr &= ~(hc->pb_irqmsk);
	hc->immap->im_cpm.cp_pbdir &= ~(hc->pb_irqmsk);

	/* At this point the needed config is done */
	/* fifos are still not enabled */
	return 0;
}