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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* $Date: 2005/11/12 02:13:49 $ $RCSfile: my3126.c,v $ $Revision: 1.15 $ */
#include "cphy.h"
#include "elmer0.h"
#include "suni1x10gexp_regs.h"
/* Port Reset */
static int my3126_reset(struct cphy *cphy, int wait)
{
/*
* This can be done through registers. It is not required since
* a full chip reset is used.
*/
return 0;
}
static int my3126_interrupt_enable(struct cphy *cphy)
{
schedule_delayed_work(&cphy->phy_update, HZ/30);
t1_tpi_read(cphy->adapter, A_ELMER0_GPO, &cphy->elmer_gpo);
return 0;
}
static int my3126_interrupt_disable(struct cphy *cphy)
{
cancel_delayed_work_sync(&cphy->phy_update);
return 0;
}
static int my3126_interrupt_clear(struct cphy *cphy)
{
return 0;
}
#define OFFSET(REG_ADDR) (REG_ADDR << 2)
static int my3126_interrupt_handler(struct cphy *cphy)
{
u32 val;
u16 val16;
u16 status;
u32 act_count;
adapter_t *adapter;
adapter = cphy->adapter;
if (cphy->count == 50) {
cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT1, &val);
val16 = (u16) val;
status = cphy->bmsr ^ val16;
if (status & MDIO_STAT1_LSTATUS)
t1_link_changed(adapter, 0);
cphy->bmsr = val16;
/* We have only enabled link change interrupts so it
must be that
*/
cphy->count = 0;
}
t1_tpi_write(adapter, OFFSET(SUNI1x10GEXP_REG_MSTAT_CONTROL),
SUNI1x10GEXP_BITMSK_MSTAT_SNAP);
t1_tpi_read(adapter,
OFFSET(SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW), &act_count);
t1_tpi_read(adapter,
OFFSET(SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW), &val);
act_count += val;
/* Populate elmer_gpo with the register value */
t1_tpi_read(adapter, A_ELMER0_GPO, &val);
cphy->elmer_gpo = val;
if ( (val & (1 << 8)) || (val & (1 << 19)) ||
(cphy->act_count == act_count) || cphy->act_on ) {
if (is_T2(adapter))
val |= (1 << 9);
else if (t1_is_T1B(adapter))
val |= (1 << 20);
cphy->act_on = 0;
} else {
if (is_T2(adapter))
val &= ~(1 << 9);
else if (t1_is_T1B(adapter))
val &= ~(1 << 20);
cphy->act_on = 1;
}
t1_tpi_write(adapter, A_ELMER0_GPO, val);
cphy->elmer_gpo = val;
cphy->act_count = act_count;
cphy->count++;
return cphy_cause_link_change;
}
static void my3216_poll(struct work_struct *work)
{
struct cphy *cphy = container_of(work, struct cphy, phy_update.work);
my3126_interrupt_handler(cphy);
}
static int my3126_set_loopback(struct cphy *cphy, int on)
{
return 0;
}
/* To check the activity LED */
static int my3126_get_link_status(struct cphy *cphy,
int *link_ok, int *speed, int *duplex, int *fc)
{
u32 val;
u16 val16;
adapter_t *adapter;
adapter = cphy->adapter;
cphy_mdio_read(cphy, MDIO_MMD_PMAPMD, MDIO_STAT1, &val);
val16 = (u16) val;
/* Populate elmer_gpo with the register value */
t1_tpi_read(adapter, A_ELMER0_GPO, &val);
cphy->elmer_gpo = val;
*link_ok = (val16 & MDIO_STAT1_LSTATUS);
if (*link_ok) {
/* Turn on the LED. */
if (is_T2(adapter))
val &= ~(1 << 8);
else if (t1_is_T1B(adapter))
val &= ~(1 << 19);
} else {
/* Turn off the LED. */
if (is_T2(adapter))
val |= (1 << 8);
else if (t1_is_T1B(adapter))
val |= (1 << 19);
}
t1_tpi_write(adapter, A_ELMER0_GPO, val);
cphy->elmer_gpo = val;
*speed = SPEED_10000;
*duplex = DUPLEX_FULL;
/* need to add flow control */
if (fc)
*fc = PAUSE_RX | PAUSE_TX;
return 0;
}
static void my3126_destroy(struct cphy *cphy)
{
kfree(cphy);
}
static const struct cphy_ops my3126_ops = {
.destroy = my3126_destroy,
.reset = my3126_reset,
.interrupt_enable = my3126_interrupt_enable,
.interrupt_disable = my3126_interrupt_disable,
.interrupt_clear = my3126_interrupt_clear,
.interrupt_handler = my3126_interrupt_handler,
.get_link_status = my3126_get_link_status,
.set_loopback = my3126_set_loopback,
.mmds = (MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS |
MDIO_DEVS_PHYXS),
};
static struct cphy *my3126_phy_create(struct net_device *dev,
int phy_addr, const struct mdio_ops *mdio_ops)
{
struct cphy *cphy = kzalloc(sizeof (*cphy), GFP_KERNEL);
if (!cphy)
return NULL;
cphy_init(cphy, dev, phy_addr, &my3126_ops, mdio_ops);
INIT_DELAYED_WORK(&cphy->phy_update, my3216_poll);
cphy->bmsr = 0;
return cphy;
}
/* Chip Reset */
static int my3126_phy_reset(adapter_t * adapter)
{
u32 val;
t1_tpi_read(adapter, A_ELMER0_GPO, &val);
val &= ~4;
t1_tpi_write(adapter, A_ELMER0_GPO, val);
msleep(100);
t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
msleep(1000);
/* Now lets enable the Laser. Delay 100us */
t1_tpi_read(adapter, A_ELMER0_GPO, &val);
val |= 0x8000;
t1_tpi_write(adapter, A_ELMER0_GPO, val);
udelay(100);
return 0;
}
const struct gphy t1_my3126_ops = {
.create = my3126_phy_create,
.reset = my3126_phy_reset
};
|
