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9#include <linux/kernel.h>
10#include <linux/signal.h>
11#include <linux/sched.h>
12
13#include <linux/interrupt.h>
14#include <asm/io.h>
15
16#include <media/dmxdev.h>
17#include <media/dvbdev.h>
18#include <media/dvb_demux.h>
19#include <media/dvb_frontend.h>
20#include <media/dvb_net.h>
21
22#include "mantis_common.h"
23
24#include "mantis_hif.h"
25#include "mantis_link.h"
26
27#include "mantis_reg.h"
28
29
30static int mantis_hif_sbuf_opdone_wait(struct mantis_ca *ca)
31{
32 struct mantis_pci *mantis = ca->ca_priv;
33 int rc = 0;
34
35 if (wait_event_timeout(ca->hif_opdone_wq,
36 ca->hif_event & MANTIS_SBUF_OPDONE,
37 msecs_to_jiffies(500)) == -ERESTARTSYS) {
38
39 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): Smart buffer operation timeout !", mantis->num);
40 rc = -EREMOTEIO;
41 }
42 dprintk(MANTIS_DEBUG, 1, "Smart Buffer Operation complete");
43 ca->hif_event &= ~MANTIS_SBUF_OPDONE;
44 return rc;
45}
46
47static int mantis_hif_write_wait(struct mantis_ca *ca)
48{
49 struct mantis_pci *mantis = ca->ca_priv;
50 u32 opdone = 0, timeout = 0;
51 int rc = 0;
52
53 if (wait_event_timeout(ca->hif_write_wq,
54 mantis->gpif_status & MANTIS_GPIF_WRACK,
55 msecs_to_jiffies(500)) == -ERESTARTSYS) {
56
57 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): Write ACK timed out !", mantis->num);
58 rc = -EREMOTEIO;
59 }
60 dprintk(MANTIS_DEBUG, 1, "Write Acknowledged");
61 mantis->gpif_status &= ~MANTIS_GPIF_WRACK;
62 while (!opdone) {
63 opdone = (mmread(MANTIS_GPIF_STATUS) & MANTIS_SBUF_OPDONE);
64 udelay(500);
65 timeout++;
66 if (timeout > 100) {
67 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): Write operation timed out!", mantis->num);
68 rc = -ETIMEDOUT;
69 break;
70 }
71 }
72 dprintk(MANTIS_DEBUG, 1, "HIF Write success");
73 return rc;
74}
75
76
77int mantis_hif_read_mem(struct mantis_ca *ca, u32 addr)
78{
79 struct mantis_pci *mantis = ca->ca_priv;
80 u32 hif_addr = 0, data, count = 4;
81
82 dprintk(MANTIS_DEBUG, 1, "Adapter(%d) Slot(0): Request HIF Mem Read", mantis->num);
83 mutex_lock(&ca->ca_lock);
84 hif_addr &= ~MANTIS_GPIF_PCMCIAREG;
85 hif_addr &= ~MANTIS_GPIF_PCMCIAIOM;
86 hif_addr |= MANTIS_HIF_STATUS;
87 hif_addr |= addr;
88
89 mmwrite(hif_addr, MANTIS_GPIF_BRADDR);
90 mmwrite(count, MANTIS_GPIF_BRBYTES);
91 udelay(20);
92 mmwrite(hif_addr | MANTIS_GPIF_HIFRDWRN, MANTIS_GPIF_ADDR);
93
94 if (mantis_hif_sbuf_opdone_wait(ca) != 0) {
95 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): GPIF Smart Buffer operation failed", mantis->num);
96 mutex_unlock(&ca->ca_lock);
97 return -EREMOTEIO;
98 }
99 data = mmread(MANTIS_GPIF_DIN);
100 mutex_unlock(&ca->ca_lock);
101 dprintk(MANTIS_DEBUG, 1, "Mem Read: 0x%02x", data);
102 return (data >> 24) & 0xff;
103}
104
105int mantis_hif_write_mem(struct mantis_ca *ca, u32 addr, u8 data)
106{
107 struct mantis_slot *slot = ca->slot;
108 struct mantis_pci *mantis = ca->ca_priv;
109 u32 hif_addr = 0;
110
111 dprintk(MANTIS_DEBUG, 1, "Adapter(%d) Slot(0): Request HIF Mem Write", mantis->num);
112 mutex_lock(&ca->ca_lock);
113 hif_addr &= ~MANTIS_GPIF_HIFRDWRN;
114 hif_addr &= ~MANTIS_GPIF_PCMCIAREG;
115 hif_addr &= ~MANTIS_GPIF_PCMCIAIOM;
116 hif_addr |= MANTIS_HIF_STATUS;
117 hif_addr |= addr;
118
119 mmwrite(slot->slave_cfg, MANTIS_GPIF_CFGSLA);
120 mmwrite(hif_addr, MANTIS_GPIF_ADDR);
121 mmwrite(data, MANTIS_GPIF_DOUT);
122
123 if (mantis_hif_write_wait(ca) != 0) {
124 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): HIF Smart Buffer operation failed", mantis->num);
125 mutex_unlock(&ca->ca_lock);
126 return -EREMOTEIO;
127 }
128 dprintk(MANTIS_DEBUG, 1, "Mem Write: (0x%02x to 0x%02x)", data, addr);
129 mutex_unlock(&ca->ca_lock);
130
131 return 0;
132}
133
134int mantis_hif_read_iom(struct mantis_ca *ca, u32 addr)
135{
136 struct mantis_pci *mantis = ca->ca_priv;
137 u32 data, hif_addr = 0;
138
139 dprintk(MANTIS_DEBUG, 1, "Adapter(%d) Slot(0): Request HIF I/O Read", mantis->num);
140 mutex_lock(&ca->ca_lock);
141 hif_addr &= ~MANTIS_GPIF_PCMCIAREG;
142 hif_addr |= MANTIS_GPIF_PCMCIAIOM;
143 hif_addr |= MANTIS_HIF_STATUS;
144 hif_addr |= addr;
145
146 mmwrite(hif_addr, MANTIS_GPIF_BRADDR);
147 mmwrite(1, MANTIS_GPIF_BRBYTES);
148 udelay(20);
149 mmwrite(hif_addr | MANTIS_GPIF_HIFRDWRN, MANTIS_GPIF_ADDR);
150
151 if (mantis_hif_sbuf_opdone_wait(ca) != 0) {
152 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): HIF Smart Buffer operation failed", mantis->num);
153 mutex_unlock(&ca->ca_lock);
154 return -EREMOTEIO;
155 }
156 data = mmread(MANTIS_GPIF_DIN);
157 dprintk(MANTIS_DEBUG, 1, "I/O Read: 0x%02x", data);
158 udelay(50);
159 mutex_unlock(&ca->ca_lock);
160
161 return (u8) data;
162}
163
164int mantis_hif_write_iom(struct mantis_ca *ca, u32 addr, u8 data)
165{
166 struct mantis_pci *mantis = ca->ca_priv;
167 u32 hif_addr = 0;
168
169 dprintk(MANTIS_DEBUG, 1, "Adapter(%d) Slot(0): Request HIF I/O Write", mantis->num);
170 mutex_lock(&ca->ca_lock);
171 hif_addr &= ~MANTIS_GPIF_PCMCIAREG;
172 hif_addr &= ~MANTIS_GPIF_HIFRDWRN;
173 hif_addr |= MANTIS_GPIF_PCMCIAIOM;
174 hif_addr |= MANTIS_HIF_STATUS;
175 hif_addr |= addr;
176
177 mmwrite(hif_addr, MANTIS_GPIF_ADDR);
178 mmwrite(data, MANTIS_GPIF_DOUT);
179
180 if (mantis_hif_write_wait(ca) != 0) {
181 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Slot(0): HIF Smart Buffer operation failed", mantis->num);
182 mutex_unlock(&ca->ca_lock);
183 return -EREMOTEIO;
184 }
185 dprintk(MANTIS_DEBUG, 1, "I/O Write: (0x%02x to 0x%02x)", data, addr);
186 mutex_unlock(&ca->ca_lock);
187 udelay(50);
188
189 return 0;
190}
191
192int mantis_hif_init(struct mantis_ca *ca)
193{
194 struct mantis_slot *slot = ca->slot;
195 struct mantis_pci *mantis = ca->ca_priv;
196 u32 irqcfg;
197
198 slot[0].slave_cfg = 0x70773028;
199 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Initializing Mantis Host Interface", mantis->num);
200
201 mutex_lock(&ca->ca_lock);
202 irqcfg = mmread(MANTIS_GPIF_IRQCFG);
203 irqcfg = MANTIS_MASK_BRRDY |
204 MANTIS_MASK_WRACK |
205 MANTIS_MASK_EXTIRQ |
206 MANTIS_MASK_WSTO |
207 MANTIS_MASK_OTHERR |
208 MANTIS_MASK_OVFLW;
209
210 mmwrite(irqcfg, MANTIS_GPIF_IRQCFG);
211 mutex_unlock(&ca->ca_lock);
212
213 return 0;
214}
215
216void mantis_hif_exit(struct mantis_ca *ca)
217{
218 struct mantis_pci *mantis = ca->ca_priv;
219 u32 irqcfg;
220
221 dprintk(MANTIS_ERROR, 1, "Adapter(%d) Exiting Mantis Host Interface", mantis->num);
222 mutex_lock(&ca->ca_lock);
223 irqcfg = mmread(MANTIS_GPIF_IRQCFG);
224 irqcfg &= ~MANTIS_MASK_BRRDY;
225 mmwrite(irqcfg, MANTIS_GPIF_IRQCFG);
226 mutex_unlock(&ca->ca_lock);
227}
228
