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comparison gsm-fw/bsp/sim32.c @ 163:5e0e41cd7c9f

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gsm-fw/bsp/sim*.c: initial import from the Leonardo semi-src
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 18 Nov 2013 01:37:19 +0000
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children 1199cdf99c32
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162:595192258bc9 163:5e0e41cd7c9f
1 /*
2 * SIM32.C
3 *
4 * Pole Star SIM
5 *
6 * Target : ARM
7 *
8 * Copyright (c) Texas Instruments 1995
9 *
10 */
11
12 #define SIM32_C 1
13
14 #include "chipset.cfg"
15
16 #include "main/sys_types.h"
17 #include <assert.h>
18 #include "inth/iq.h"
19 #include "sim.h"
20
21
22 #ifdef SIM_DEBUG_TRACE
23 /* working buffer for NULL BYTE */
24 extern SYS_UWORD8 SIM_dbg_null[];
25 /* Nucleus variable given the current number of TDMA frames */
26 extern SYS_UWORD32 IQ_FrameCount;
27 /* working variable to calculate the TDMA ecart */
28 extern SYS_UWORD16 SIM_dbg_tdma_diff;
29 /* working variable storing the current number of TDMA frames elapsed */
30 SYS_UWORD32 SIM_dbg_local_count;
31 #endif
32
33 /*
34 * SIM_IntHandler
35 *
36 * Read cause of SIM interrupt :
37 *
38 * if receive buffer full, read char
39 * if transmitter empty, change direction, transmit a dummy char
40 *
41 */
42 void SIM_IntHandler(void)
43 {
44 volatile unsigned short it, i, stat, conf1;
45 volatile SYS_UWORD8 ins;
46 volatile SYS_UWORD8 rx;
47 volatile SYS_UWORD8 nack;
48 volatile SYS_UWORD8 nack1;
49
50
51 SIM_PORT *p;
52
53 p = &(Sim[0]);
54
55 p->rxParityErr = 0;
56 it = p->c->it;
57
58 if ((it & SIM_IT_ITRX) && !(p->c->maskit & SIM_MASK_RX)) // int on reception
59 {
60 stat = p->c->rx;
61 conf1 = p->conf1;
62
63 #ifdef SIM_DEBUG_TRACE
64 if ((IQ_FrameCount - SIM_dbg_local_count) > SIM_dbg_tdma_diff) {
65 SIM_dbg_tdma_diff = IQ_FrameCount - SIM_dbg_local_count;
66 }
67 SIM_dbg_local_count = IQ_FrameCount;
68 #endif
69
70 // Check if reception parity is enable
71 if (((conf1 & SIM_CONF1_CHKPAR) && ((stat & SIM_DRX_STATRXPAR) != 0))\
72 || ((conf1 & SIM_CONF1_CHKPAR) == 0))
73 {
74 rx = (SYS_UWORD8) (stat & 0x00FF);
75 ins = p->xbuf[1] & p->hw_mask;
76 nack = (~p->xbuf[1]) & p->hw_mask;
77
78 switch (p->moderx)
79 {
80 case 0: //mode of normal reception without proc char (like PTS proc)
81 p->rbuf[p->rx_index++] = rx;
82 break;
83
84 case 1: //mode wait for ACK
85 if ((rx & p->hw_mask) == ins)
86 {
87 p->moderx = 2;
88 }
89 else if ((rx & p->hw_mask) == nack)
90 {
91 p->moderx = 4;
92 }
93 else if (((rx & 0xF0) == 0x60) || ((rx & 0xF0) == 0x90))
94 {
95 if (rx != 0x60) //in case of error code (SW1/SW2) returned by sim card
96 {
97 p->rSW12[p->SWcount++] = rx;
98 p->moderx = 5;
99 }
100 else
101 {
102 p->null_received = 1;
103 #ifdef SIM_DEBUG_TRACE
104 SIM_dbg_null[0]++;
105 #endif
106 }
107 }
108 else
109 {
110 p->errorSIM = SIM_ERR_ABNORMAL_CASE2;
111 }
112 //if rx = 0x60 wait for ACK
113 break;
114
115 case 2: //mode reception by block
116 p->rbuf[p->rx_index++] = rx;
117
118 if(p->expected_data == 256)
119 {
120 if (p->rx_index == 0)
121 {
122 p->moderx = 5;
123 }
124 }
125 else
126 {
127 if (p->rx_index == p->expected_data)
128 {
129 p->moderx = 5;
130 }
131 }
132 break;
133
134 case 3: //mode reception char by char. reception of proc char
135 if ((rx & p->hw_mask) == ins)
136 {
137 p->moderx = 2;
138 }
139 else if ((rx & p->hw_mask) == nack)
140 {
141 p->moderx = 4;
142 } //if rx = 0x60 wait for ACK
143 else if (rx == 0x60)
144 {
145 p->null_received == 1;
146 #ifdef SIM_DEBUG_TRACE
147 SIM_dbg_null[1]++;
148 #endif
149 }
150
151 break;
152
153 case 4: //mode reception char by char. reception of data
154 p->rbuf[p->rx_index++] = rx;
155 p->moderx = 3; //switch to receive proc char mode
156
157 if(p->expected_data == 256)
158 {
159 if (p->rx_index == 0)
160 {
161 p->moderx = 5;
162 }
163 }
164 else
165 {
166 if (p->rx_index == p->expected_data)
167 {
168 p->moderx = 5;
169 }
170 }
171 break;
172
173 case 5: //mode wait for procedure character except NULL
174 if ((rx != 0x60) || (p->SWcount != 0)) //treat NULL character only if arriving before SW1 SW2
175 {
176 p->rSW12[p->SWcount++] = rx;
177 }
178 else
179 {
180 p->null_received = 1;
181 #ifdef SIM_DEBUG_TRACE
182 SIM_dbg_null[2]++;
183 #endif
184 }
185
186
187 break;
188
189 case 6: //give the acknowledge char
190 if (((rx & 0xF0) == 0x60) || ((rx & 0xF0) == 0x90))
191 {
192 if (rx != 0x60) //in case of error code (SW1/SW2) returned by sim card
193 {
194 p->rSW12[p->SWcount++] = rx;
195 p->moderx = 5;
196 }
197 else
198 {
199 p->null_received = 1;
200 #ifdef SIM_DEBUG_TRACE
201 SIM_dbg_null[3]++;
202 #endif
203 }
204 }
205 else
206 {
207 p->ack = rx;
208 }
209 }
210 }
211 else
212 {
213 p->rxParityErr = 1;
214 }
215 }
216
217 if ((it & SIM_IT_ITTX) && !(p->c->maskit & SIM_MASK_TX))
218 {
219 #ifdef SIM_DEBUG_TRACE
220 SIM_dbg_local_count = IQ_FrameCount;
221 #endif
222 // check the transmit parity
223 stat = p->c->stat;
224
225
226 if ((stat & SIM_STAT_TXPAR) || ((p->conf1 & SIM_CONF1_CHKPAR) == 0)) //parity disable
227 {
228 if (p->xOut != (p->xIn - 1)) //if only one char transmitted (already transmitted)
229 { //just need to have confirmation of reception
230 if (p->xOut == (p->xIn - 2))
231 {
232 p->xOut++;
233 p->c->tx = *(p->xOut); // transmit
234
235 p->conf1 &= ~SIM_CONF1_TXRX; // return the direction
236 p->c->conf1 = p->conf1;
237 }
238
239 if (p->xOut < (p->xIn - 2))
240 {
241 p->xOut++;
242 p->c->tx = *(p->xOut); // transmit
243 }
244 }
245 }
246 else
247 {
248 p->c->tx = *(p->xOut); // transmit same char
249 p->txParityErr++; // count number of transmit parity errors
250 }
251
252 }
253
254 // Handle errors
255 if ((it & SIM_IT_ITOV) && !(p->c->maskit & SIM_MASK_OV))
256 {
257 p->errorSIM = SIM_ERR_OVF;
258
259 }
260 if ((it & SIM_IT_WT) && !(p->c->maskit & SIM_MASK_WT))
261 {
262 p->errorSIM = SIM_ERR_READ;
263 }
264
265 // Reset the card in case of NATR to let the program continue
266 if ((it & SIM_IT_NATR) && !(p->c->maskit & SIM_MASK_NATR))
267 {
268 p->c->cmd = SIM_CMD_STOP;
269 p->errorSIM = SIM_ERR_NATR;
270 }
271
272 #if ((CHIPSET == 2) || (CHIPSET == 3))
273 // SIM card insertion / extraction
274 if ((it & SIM_IT_CD) && !(p->c->maskit & SIM_MASK_CD))
275 {
276 stat = p->c->stat;
277 if ((stat & SIM_STAT_CD) != SIM_STAT_CD)
278 {
279 (p->RemoveFunc)();
280 p->errorSIM = SIM_ERR_NOCARD;
281 }
282 }
283 #endif
284 }
285
286 #if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11) || (CHIPSET == 12))
287 /*
288 * SIM_CD_IntHandler
289 *
290 * Read cause of SIM interrupt :
291 *
292 */
293 void SIM_CD_IntHandler(void)
294 {
295 volatile unsigned short it_cd, stat;
296 SIM_PORT *p;
297
298 p = &(Sim[0]);
299
300 p->rxParityErr = 0;
301 it_cd = p->c->it_cd;
302
303 // SIM card insertion / extraction
304 if ((it_cd & SIM_IT_CD) && !(p->c->maskit & SIM_MASK_CD))
305 {
306 stat = p->c->stat;
307 if ((stat & SIM_STAT_CD) != SIM_STAT_CD)
308 {
309 (p->RemoveFunc)();
310 p->errorSIM = SIM_ERR_NOCARD;
311 }
312 }
313 }
314 #endif
315
316
317 // to force this module to be linked
318 SYS_UWORD16 SIM_Dummy(void)
319 {
320
321 }