This source file includes following definitions.
- q40_mem_console_write
- q40_debug_setup
- printq40
- q40_heartbeat
- q40_reset
- q40_halt
- q40_get_model
- q40_disable_irqs
- config_q40
- q40_parse_bootinfo
- q40_hwclk
- q40_get_ss
- q40_get_rtc_pll
- q40_set_rtc_pll
- q40_add_kbd_device
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15 #include <linux/errno.h>
16 #include <linux/types.h>
17 #include <linux/kernel.h>
18 #include <linux/mm.h>
19 #include <linux/tty.h>
20 #include <linux/console.h>
21 #include <linux/linkage.h>
22 #include <linux/init.h>
23 #include <linux/major.h>
24 #include <linux/serial_reg.h>
25 #include <linux/rtc.h>
26 #include <linux/vt_kern.h>
27 #include <linux/bcd.h>
28 #include <linux/platform_device.h>
29
30 #include <asm/io.h>
31 #include <asm/bootinfo.h>
32 #include <asm/pgtable.h>
33 #include <asm/setup.h>
34 #include <asm/irq.h>
35 #include <asm/traps.h>
36 #include <asm/machdep.h>
37 #include <asm/q40_master.h>
38
39 extern void q40_init_IRQ(void);
40 static void q40_get_model(char *model);
41 extern void q40_sched_init(irq_handler_t handler);
42
43 static int q40_hwclk(int, struct rtc_time *);
44 static unsigned int q40_get_ss(void);
45 static int q40_get_rtc_pll(struct rtc_pll_info *pll);
46 static int q40_set_rtc_pll(struct rtc_pll_info *pll);
47
48 extern void q40_mksound(unsigned int , unsigned int );
49
50 static void q40_mem_console_write(struct console *co, const char *b,
51 unsigned int count);
52
53 extern int ql_ticks;
54
55 static struct console q40_console_driver = {
56 .name = "debug",
57 .write = q40_mem_console_write,
58 .flags = CON_PRINTBUFFER,
59 .index = -1,
60 };
61
62
63
64 extern char *q40_mem_cptr;
65 static int _cpleft;
66
67 static void q40_mem_console_write(struct console *co, const char *s,
68 unsigned int count)
69 {
70 const char *p = s;
71
72 if (count < _cpleft) {
73 while (count-- > 0) {
74 *q40_mem_cptr = *p++;
75 q40_mem_cptr += 4;
76 _cpleft--;
77 }
78 }
79 }
80
81 static int __init q40_debug_setup(char *arg)
82 {
83
84 if (MACH_IS_Q40 && !strncmp(arg, "mem", 3)) {
85
86 _cpleft = 2000 - ((long)q40_mem_cptr-0xff020000) / 4;
87 register_console(&q40_console_driver);
88 }
89 return 0;
90 }
91
92 early_param("debug", q40_debug_setup);
93
94 #if 0
95 void printq40(char *str)
96 {
97 int l = strlen(str);
98 char *p = q40_mem_cptr;
99
100 while (l-- > 0 && _cpleft-- > 0) {
101 *p = *str++;
102 p += 4;
103 }
104 q40_mem_cptr = p;
105 }
106 #endif
107
108 static int halted;
109
110 #ifdef CONFIG_HEARTBEAT
111 static void q40_heartbeat(int on)
112 {
113 if (halted)
114 return;
115
116 if (on)
117 Q40_LED_ON();
118 else
119 Q40_LED_OFF();
120 }
121 #endif
122
123 static void q40_reset(void)
124 {
125 halted = 1;
126 pr_info("*******************************************\n"
127 "Called q40_reset : press the RESET button!!\n"
128 "*******************************************\n");
129 Q40_LED_ON();
130 while (1)
131 ;
132 }
133
134 static void q40_halt(void)
135 {
136 halted = 1;
137 pr_info("*******************\n"
138 " Called q40_halt\n"
139 "*******************\n");
140 Q40_LED_ON();
141 while (1)
142 ;
143 }
144
145 static void q40_get_model(char *model)
146 {
147 sprintf(model, "Q40");
148 }
149
150 static unsigned int serports[] =
151 {
152 0x3f8,0x2f8,0x3e8,0x2e8,0
153 };
154
155 static void __init q40_disable_irqs(void)
156 {
157 unsigned i, j;
158
159 j = 0;
160 while ((i = serports[j++]))
161 outb(0, i + UART_IER);
162 master_outb(0, EXT_ENABLE_REG);
163 master_outb(0, KEY_IRQ_ENABLE_REG);
164 }
165
166 void __init config_q40(void)
167 {
168 mach_sched_init = q40_sched_init;
169
170 mach_init_IRQ = q40_init_IRQ;
171 mach_hwclk = q40_hwclk;
172 mach_get_ss = q40_get_ss;
173 mach_get_rtc_pll = q40_get_rtc_pll;
174 mach_set_rtc_pll = q40_set_rtc_pll;
175
176 mach_reset = q40_reset;
177 mach_get_model = q40_get_model;
178
179 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
180 mach_beep = q40_mksound;
181 #endif
182 #ifdef CONFIG_HEARTBEAT
183 mach_heartbeat = q40_heartbeat;
184 #endif
185 mach_halt = q40_halt;
186
187
188 q40_disable_irqs();
189
190
191
192
193 mach_max_dma_address = 1024*1024*1024;
194 }
195
196
197 int __init q40_parse_bootinfo(const struct bi_record *rec)
198 {
199 return 1;
200 }
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216
217 static int q40_hwclk(int op, struct rtc_time *t)
218 {
219 if (op) {
220
221 Q40_RTC_CTRL |= Q40_RTC_WRITE;
222
223 Q40_RTC_SECS = bin2bcd(t->tm_sec);
224 Q40_RTC_MINS = bin2bcd(t->tm_min);
225 Q40_RTC_HOUR = bin2bcd(t->tm_hour);
226 Q40_RTC_DATE = bin2bcd(t->tm_mday);
227 Q40_RTC_MNTH = bin2bcd(t->tm_mon + 1);
228 Q40_RTC_YEAR = bin2bcd(t->tm_year%100);
229 if (t->tm_wday >= 0)
230 Q40_RTC_DOW = bin2bcd(t->tm_wday+1);
231
232 Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
233 } else {
234
235 Q40_RTC_CTRL |= Q40_RTC_READ;
236
237 t->tm_year = bcd2bin (Q40_RTC_YEAR);
238 t->tm_mon = bcd2bin (Q40_RTC_MNTH)-1;
239 t->tm_mday = bcd2bin (Q40_RTC_DATE);
240 t->tm_hour = bcd2bin (Q40_RTC_HOUR);
241 t->tm_min = bcd2bin (Q40_RTC_MINS);
242 t->tm_sec = bcd2bin (Q40_RTC_SECS);
243
244 Q40_RTC_CTRL &= ~(Q40_RTC_READ);
245
246 if (t->tm_year < 70)
247 t->tm_year += 100;
248 t->tm_wday = bcd2bin(Q40_RTC_DOW)-1;
249 }
250
251 return 0;
252 }
253
254 static unsigned int q40_get_ss(void)
255 {
256 return bcd2bin(Q40_RTC_SECS);
257 }
258
259
260 #define Q40_RTC_PLL_MASK ((1<<5)-1)
261 #define Q40_RTC_PLL_SIGN (1<<5)
262
263 static int q40_get_rtc_pll(struct rtc_pll_info *pll)
264 {
265 int tmp = Q40_RTC_CTRL;
266
267 pll->pll_value = tmp & Q40_RTC_PLL_MASK;
268 if (tmp & Q40_RTC_PLL_SIGN)
269 pll->pll_value = -pll->pll_value;
270 pll->pll_max = 31;
271 pll->pll_min = -31;
272 pll->pll_posmult = 512;
273 pll->pll_negmult = 256;
274 pll->pll_clock = 125829120;
275
276 return 0;
277 }
278
279 static int q40_set_rtc_pll(struct rtc_pll_info *pll)
280 {
281 if (!pll->pll_ctrl) {
282
283
284 int tmp = (pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) |
285 Q40_RTC_WRITE;
286 Q40_RTC_CTRL |= Q40_RTC_WRITE;
287 Q40_RTC_CTRL = tmp;
288 Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
289 return 0;
290 } else
291 return -EINVAL;
292 }
293
294 static __init int q40_add_kbd_device(void)
295 {
296 struct platform_device *pdev;
297
298 if (!MACH_IS_Q40)
299 return -ENODEV;
300
301 pdev = platform_device_register_simple("q40kbd", -1, NULL, 0);
302 return PTR_ERR_OR_ZERO(pdev);
303 }
304 arch_initcall(q40_add_kbd_device);