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Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001/* $Date: 2005/11/12 02:13:49 $ $RCSfile: my3126.c,v $ $Revision: 1.15 $ */
2#include "cphy.h"
3#include "elmer0.h"
4#include "suni1x10gexp_regs.h"
5
6/* Port Reset */
7static int my3126_reset(struct cphy *cphy, int wait)
8{
9 /*
10 * This can be done through registers. It is not required since
11 * a full chip reset is used.
12 */
Francois Romieub7d58392006-12-11 23:41:36 +010013 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080014}
15
16static int my3126_interrupt_enable(struct cphy *cphy)
17{
18 schedule_delayed_work(&cphy->phy_update, HZ/30);
19 t1_tpi_read(cphy->adapter, A_ELMER0_GPO, &cphy->elmer_gpo);
Francois Romieub7d58392006-12-11 23:41:36 +010020 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080021}
22
23static int my3126_interrupt_disable(struct cphy *cphy)
24{
25 cancel_rearming_delayed_work(&cphy->phy_update);
Francois Romieub7d58392006-12-11 23:41:36 +010026 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080027}
28
29static int my3126_interrupt_clear(struct cphy *cphy)
30{
Francois Romieub7d58392006-12-11 23:41:36 +010031 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080032}
33
34#define OFFSET(REG_ADDR) (REG_ADDR << 2)
35
36static int my3126_interrupt_handler(struct cphy *cphy)
37{
38 u32 val;
39 u16 val16;
40 u16 status;
41 u32 act_count;
42 adapter_t *adapter;
43 adapter = cphy->adapter;
44
45 if (cphy->count == 50) {
46 mdio_read(cphy, 0x1, 0x1, &val);
47 val16 = (u16) val;
48 status = cphy->bmsr ^ val16;
49
50 if (status & BMSR_LSTATUS)
51 t1_link_changed(adapter, 0);
52 cphy->bmsr = val16;
53
54 /* We have only enabled link change interrupts so it
55 must be that
56 */
57 cphy->count = 0;
58 }
59
60 t1_tpi_write(adapter, OFFSET(SUNI1x10GEXP_REG_MSTAT_CONTROL),
61 SUNI1x10GEXP_BITMSK_MSTAT_SNAP);
62 t1_tpi_read(adapter,
63 OFFSET(SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW), &act_count);
64 t1_tpi_read(adapter,
65 OFFSET(SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW), &val);
66 act_count += val;
67
68 /* Populate elmer_gpo with the register value */
69 t1_tpi_read(adapter, A_ELMER0_GPO, &val);
70 cphy->elmer_gpo = val;
71
72 if ( (val & (1 << 8)) || (val & (1 << 19)) ||
73 (cphy->act_count == act_count) || cphy->act_on ) {
74 if (is_T2(adapter))
75 val |= (1 << 9);
76 else if (t1_is_T1B(adapter))
77 val |= (1 << 20);
78 cphy->act_on = 0;
79 } else {
80 if (is_T2(adapter))
81 val &= ~(1 << 9);
82 else if (t1_is_T1B(adapter))
83 val &= ~(1 << 20);
84 cphy->act_on = 1;
85 }
86
87 t1_tpi_write(adapter, A_ELMER0_GPO, val);
88
89 cphy->elmer_gpo = val;
90 cphy->act_count = act_count;
91 cphy->count++;
92
93 return cphy_cause_link_change;
94}
95
David Howells6d5aefb2006-12-05 19:36:26 +000096static void my3216_poll(struct work_struct *work)
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080097{
David Howells6d5aefb2006-12-05 19:36:26 +000098 struct cphy *cphy = container_of(work, struct cphy, phy_update.work);
99
100 my3126_interrupt_handler(cphy);
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800101}
102
103static int my3126_set_loopback(struct cphy *cphy, int on)
104{
Francois Romieub7d58392006-12-11 23:41:36 +0100105 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800106}
107
108/* To check the activity LED */
109static int my3126_get_link_status(struct cphy *cphy,
110 int *link_ok, int *speed, int *duplex, int *fc)
111{
112 u32 val;
113 u16 val16;
114 adapter_t *adapter;
115
116 adapter = cphy->adapter;
117 mdio_read(cphy, 0x1, 0x1, &val);
118 val16 = (u16) val;
119
120 /* Populate elmer_gpo with the register value */
121 t1_tpi_read(adapter, A_ELMER0_GPO, &val);
122 cphy->elmer_gpo = val;
123
124 *link_ok = (val16 & BMSR_LSTATUS);
125
126 if (*link_ok) {
127 /* Turn on the LED. */
128 if (is_T2(adapter))
129 val &= ~(1 << 8);
130 else if (t1_is_T1B(adapter))
131 val &= ~(1 << 19);
132 } else {
133 /* Turn off the LED. */
134 if (is_T2(adapter))
135 val |= (1 << 8);
136 else if (t1_is_T1B(adapter))
137 val |= (1 << 19);
138 }
139
140 t1_tpi_write(adapter, A_ELMER0_GPO, val);
141 cphy->elmer_gpo = val;
142 *speed = SPEED_10000;
143 *duplex = DUPLEX_FULL;
144
145 /* need to add flow control */
146 if (fc)
147 *fc = PAUSE_RX | PAUSE_TX;
148
Francois Romieub7d58392006-12-11 23:41:36 +0100149 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800150}
151
152static void my3126_destroy(struct cphy *cphy)
153{
154 kfree(cphy);
155}
156
157static struct cphy_ops my3126_ops = {
158 .destroy = my3126_destroy,
159 .reset = my3126_reset,
160 .interrupt_enable = my3126_interrupt_enable,
161 .interrupt_disable = my3126_interrupt_disable,
162 .interrupt_clear = my3126_interrupt_clear,
163 .interrupt_handler = my3126_interrupt_handler,
164 .get_link_status = my3126_get_link_status,
165 .set_loopback = my3126_set_loopback,
166};
167
168static struct cphy *my3126_phy_create(adapter_t *adapter,
Stephen Hemminger459e5362007-02-20 15:58:02 -0800169 int phy_addr, const struct mdio_ops *mdio_ops)
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800170{
171 struct cphy *cphy = kzalloc(sizeof (*cphy), GFP_KERNEL);
172
Stephen Hemmingerab3b1c72007-01-08 11:24:26 -0800173 if (!cphy)
174 return NULL;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800175
Stephen Hemmingerab3b1c72007-01-08 11:24:26 -0800176 cphy_init(cphy, adapter, phy_addr, &my3126_ops, mdio_ops);
David Howells6d5aefb2006-12-05 19:36:26 +0000177 INIT_DELAYED_WORK(&cphy->phy_update, my3216_poll);
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800178 cphy->bmsr = 0;
179
Francois Romieub7d58392006-12-11 23:41:36 +0100180 return cphy;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800181}
182
183/* Chip Reset */
184static int my3126_phy_reset(adapter_t * adapter)
185{
186 u32 val;
187
188 t1_tpi_read(adapter, A_ELMER0_GPO, &val);
189 val &= ~4;
190 t1_tpi_write(adapter, A_ELMER0_GPO, val);
191 msleep(100);
192
193 t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
194 msleep(1000);
195
196 /* Now lets enable the Laser. Delay 100us */
197 t1_tpi_read(adapter, A_ELMER0_GPO, &val);
198 val |= 0x8000;
199 t1_tpi_write(adapter, A_ELMER0_GPO, val);
200 udelay(100);
Francois Romieub7d58392006-12-11 23:41:36 +0100201 return 0;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800202}
203
Stephen Hemminger459e5362007-02-20 15:58:02 -0800204const struct gphy t1_my3126_ops = {
205 .create = my3126_phy_create,
206 .reset = my3126_phy_reset
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800207};