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todc.h
资源名称：linux-2.4.20.tar.gz　[点击查看]
上传用户：jlfgdled
上传日期：2013-04-10
资源大小：33168k
文件大小：17k
源码类别：

Linux/Unix编程

开发平台：

Unix_Linux

todc.h：源码内容
  1. /*
  2.  * include/asm-ppc/todc.h
  3.  *
  4.  * Definitions for the M48Txx and mc146818 series of Time of day/Real Time
  5.  * Clock chips.
  6.  *
  7.  * Author: Mark A. Greer
  8.  *         mgreer@mvista.com
  9.  *
  10.  * Copyright 2001 MontaVista Software Inc.
  11.  *
  12.  * This program is free software; you can redistribute  it and/or modify it
  13.  * under  the terms of  the GNU General  Public License as published by the
  14.  * Free Software Foundation;  either version 2 of the  License, or (at your
  15.  * option) any later version.
  16.  */
  18. /*
  19.  * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips.
  20.  * Purpose is to make one generic file that handles all of these chips instead
  21.  * of every platform implementing the same code over & over again.
  22.  */
  24. #ifndef __PPC_KERNEL_TODC_H
  25. #define __PPC_KERNEL_TODC_H
  27. typedef struct {
  28. uint rtc_type; /* your particular chip */
  30. /*
  31.  * Following are the addresses of the AS0, AS1, and DATA registers
  32.  * of these chips.  Note that these are board-specific.
  33.  */
  34. unsigned char *nvram_as0;
  35. unsigned char *nvram_as1;
  36. unsigned char *nvram_data;
  38. /*
  39.  * Define bits to stop external set of regs from changing so
  40.  * the chip can be read/written reliably.
  41.  */
  42. unsigned char enable_read;
  43. unsigned char enable_write;
  45. /*
  46.  * Following is the number of AS0 address bits.  This is normally
  47.  * 8 but some bad hardware routes address lines incorrectly.
  48.  */
  49. int as0_bits;
  51. int nvram_size; /* Size of NVRAM on chip */
  52. int sw_flags; /* Software control flags */
  54. /* Following are the register offsets for the particular chip */
  55. int year;
  56. int month;
  57. int day_of_month;
  58. int day_of_week;
  59. int hours;
  60. int minutes;
  61. int seconds;
  62. int control_b;
  63. int control_a;
  64. int watchdog;
  65. int interrupts;
  66. int alarm_date;
  67. int alarm_hour;
  68. int alarm_minutes;
  69. int alarm_seconds;
  70. int century;
  71. int flags;
  73. /*
  74.  * Some RTC chips have their NVRAM buried behind a addr/data pair of
  75.  * regs on the first level/clock registers.  The following fields
  76.  * are the addresses for those addr/data regs.
  77.  */
  78. int nvram_addr_reg;
  79. int nvram_data_reg;
  80. } todc_info_t;
  82. /*
  83.  * Define the types of TODC/RTC variants that are supported in
  84.  * arch/ppc/kernel/todc_time.c
  85.  * Make a new one of these for any chip somehow differs from what's already
  86.  * defined.  That way, if you ever need to put in code to touch those
  87.  * bits/registers in todc_time.c, you can put it inside an
  88.  * 'if (todc_info->rtc_type ==  TODC_TYPE_XXX)' so you won't break
  89.  * anyone else.
  90.  */
  91. #define TODC_TYPE_MK48T35 1
  92. #define TODC_TYPE_MK48T37 2
  93. #define TODC_TYPE_MK48T59 3
  94. #define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */
  95. #define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */
  96. #define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */
  97. #define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */
  98. #define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */
  99. #define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */
  100. #define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */
  101. #define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */
  102. #define TODC_TYPE_MC146818 100 /* Leave room for m48txx's */
  104. /*
  105.  * Bit to clear/set to enable reads/writes to the chip
  106.  */
  107. #define TODC_MK48TXX_CNTL_A_R 0x40
  108. #define TODC_MK48TXX_CNTL_A_W 0x80
  109. #define TODC_MK48TXX_DAY_CB 0x80
  111. #define TODC_DS1501_CNTL_B_TE 0x80
  113. /*
  114.  * Define flag bits used by todc routines.
  115.  */
  116. #define TODC_FLAG_2_LEVEL_NVRAM 0x00000001
  118. /*
  119.  * Define the values for the various RTC's that should to into the todc_info
  120.  * table.
  121.  * Note: The XXX_NVRAM_SIZE, XXX_NVRAM_ADDR_REG, and XXX_NVRAM_DATA_REG only
  122.  * matter if XXX_SW_FLAGS has TODC_FLAG_2_LEVEL_NVRAM set.
  123.  */
  124. #define TODC_TYPE_MK48T35_NVRAM_SIZE 0x7ff8
  125. #define TODC_TYPE_MK48T35_SW_FLAGS 0
  126. #define TODC_TYPE_MK48T35_YEAR 0x7fff
  127. #define TODC_TYPE_MK48T35_MONTH 0x7ffe
  128. #define TODC_TYPE_MK48T35_DOM 0x7ffd /* Day of Month */
  129. #define TODC_TYPE_MK48T35_DOW 0x7ffc /* Day of Week */
  130. #define TODC_TYPE_MK48T35_HOURS 0x7ffb
  131. #define TODC_TYPE_MK48T35_MINUTES 0x7ffa
  132. #define TODC_TYPE_MK48T35_SECONDS 0x7ff9
  133. #define TODC_TYPE_MK48T35_CNTL_B 0x7ff9
  134. #define TODC_TYPE_MK48T35_CNTL_A 0x7ff8
  135. #define TODC_TYPE_MK48T35_WATCHDOG 0x0000
  136. #define TODC_TYPE_MK48T35_INTERRUPTS 0x0000
  137. #define TODC_TYPE_MK48T35_ALARM_DATE 0x0000
  138. #define TODC_TYPE_MK48T35_ALARM_HOUR 0x0000
  139. #define TODC_TYPE_MK48T35_ALARM_MINUTES 0x0000
  140. #define TODC_TYPE_MK48T35_ALARM_SECONDS 0x0000
  141. #define TODC_TYPE_MK48T35_CENTURY 0x0000
  142. #define TODC_TYPE_MK48T35_FLAGS 0x0000
  143. #define TODC_TYPE_MK48T35_NVRAM_ADDR_REG 0
  144. #define TODC_TYPE_MK48T35_NVRAM_DATA_REG 0
  146. #define TODC_TYPE_MK48T37_NVRAM_SIZE 0x7ff0
  147. #define TODC_TYPE_MK48T37_SW_FLAGS 0
  148. #define TODC_TYPE_MK48T37_YEAR 0x7fff
  149. #define TODC_TYPE_MK48T37_MONTH 0x7ffe
  150. #define TODC_TYPE_MK48T37_DOM 0x7ffd /* Day of Month */
  151. #define TODC_TYPE_MK48T37_DOW 0x7ffc /* Day of Week */
  152. #define TODC_TYPE_MK48T37_HOURS 0x7ffb
  153. #define TODC_TYPE_MK48T37_MINUTES 0x7ffa
  154. #define TODC_TYPE_MK48T37_SECONDS 0x7ff9
  155. #define TODC_TYPE_MK48T37_CNTL_B 0x7ff9
  156. #define TODC_TYPE_MK48T37_CNTL_A 0x7ff8
  157. #define TODC_TYPE_MK48T37_WATCHDOG 0x7ff7
  158. #define TODC_TYPE_MK48T37_INTERRUPTS 0x7ff6
  159. #define TODC_TYPE_MK48T37_ALARM_DATE 0x7ff5
  160. #define TODC_TYPE_MK48T37_ALARM_HOUR 0x7ff4
  161. #define TODC_TYPE_MK48T37_ALARM_MINUTES 0x7ff3
  162. #define TODC_TYPE_MK48T37_ALARM_SECONDS 0x7ff2
  163. #define TODC_TYPE_MK48T37_CENTURY 0x7ff1
  164. #define TODC_TYPE_MK48T37_FLAGS 0x7ff0
  165. #define TODC_TYPE_MK48T37_NVRAM_ADDR_REG 0
  166. #define TODC_TYPE_MK48T37_NVRAM_DATA_REG 0
  168. #define TODC_TYPE_MK48T59_NVRAM_SIZE 0x1ff0
  169. #define TODC_TYPE_MK48T59_SW_FLAGS 0
  170. #define TODC_TYPE_MK48T59_YEAR 0x1fff
  171. #define TODC_TYPE_MK48T59_MONTH 0x1ffe
  172. #define TODC_TYPE_MK48T59_DOM 0x1ffd /* Day of Month */
  173. #define TODC_TYPE_MK48T59_DOW 0x1ffc /* Day of Week */
  174. #define TODC_TYPE_MK48T59_HOURS 0x1ffb
  175. #define TODC_TYPE_MK48T59_MINUTES 0x1ffa
  176. #define TODC_TYPE_MK48T59_SECONDS 0x1ff9
  177. #define TODC_TYPE_MK48T59_CNTL_B 0x1ff9
  178. #define TODC_TYPE_MK48T59_CNTL_A 0x1ff8
  179. #define TODC_TYPE_MK48T59_WATCHDOG 0x1fff
  180. #define TODC_TYPE_MK48T59_INTERRUPTS 0x1fff
  181. #define TODC_TYPE_MK48T59_ALARM_DATE 0x1fff
  182. #define TODC_TYPE_MK48T59_ALARM_HOUR 0x1fff
  183. #define TODC_TYPE_MK48T59_ALARM_MINUTES 0x1fff
  184. #define TODC_TYPE_MK48T59_ALARM_SECONDS 0x1fff
  185. #define TODC_TYPE_MK48T59_CENTURY 0x1fff
  186. #define TODC_TYPE_MK48T59_FLAGS 0x1fff
  187. #define TODC_TYPE_MK48T59_NVRAM_ADDR_REG 0
  188. #define TODC_TYPE_MK48T59_NVRAM_DATA_REG 0
  190. #define TODC_TYPE_DS1501_NVRAM_SIZE 0x100
  191. #define TODC_TYPE_DS1501_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
  192. #define TODC_TYPE_DS1501_YEAR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x06)
  193. #define TODC_TYPE_DS1501_MONTH (TODC_TYPE_DS1501_NVRAM_SIZE + 0x05)
  194. #define TODC_TYPE_DS1501_DOM (TODC_TYPE_DS1501_NVRAM_SIZE + 0x04)
  195. #define TODC_TYPE_DS1501_DOW (TODC_TYPE_DS1501_NVRAM_SIZE + 0x03)
  196. #define TODC_TYPE_DS1501_HOURS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x02)
  197. #define TODC_TYPE_DS1501_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x01)
  198. #define TODC_TYPE_DS1501_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x00)
  199. #define TODC_TYPE_DS1501_CNTL_B (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
  200. #define TODC_TYPE_DS1501_CNTL_A (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
  201. #define TODC_TYPE_DS1501_WATCHDOG (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
  202. #define TODC_TYPE_DS1501_INTERRUPTS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
  203. #define TODC_TYPE_DS1501_ALARM_DATE (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0b)
  204. #define TODC_TYPE_DS1501_ALARM_HOUR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0a)
  205. #define TODC_TYPE_DS1501_ALARM_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x09)
  206. #define TODC_TYPE_DS1501_ALARM_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x08)
  207. #define TODC_TYPE_DS1501_CENTURY (TODC_TYPE_DS1501_NVRAM_SIZE + 0x07)
  208. #define TODC_TYPE_DS1501_FLAGS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
  209. #define TODC_TYPE_DS1501_NVRAM_ADDR_REG 0x10
  210. #define TODC_TYPE_DS1501_NVRAM_DATA_REG 0x13
  212. #define TODC_TYPE_DS1557_NVRAM_SIZE 0x7fff0
  213. #define TODC_TYPE_DS1557_SW_FLAGS 0
  214. #define TODC_TYPE_DS1557_YEAR 0x7ffff
  215. #define TODC_TYPE_DS1557_MONTH 0x7fffe
  216. #define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */
  217. #define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */
  218. #define TODC_TYPE_DS1557_HOURS 0x7fffb
  219. #define TODC_TYPE_DS1557_MINUTES 0x7fffa
  220. #define TODC_TYPE_DS1557_SECONDS 0x7fff9
  221. #define TODC_TYPE_DS1557_CNTL_B 0x7fff9
  222. #define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */
  223. #define TODC_TYPE_DS1557_WATCHDOG 0x7fff7
  224. #define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6
  225. #define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5
  226. #define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4
  227. #define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3
  228. #define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2
  229. #define TODC_TYPE_DS1557_CENTURY 0x7fff8
  230. #define TODC_TYPE_DS1557_FLAGS 0x7fff0
  231. #define TODC_TYPE_DS1557_NVRAM_ADDR_REG 0
  232. #define TODC_TYPE_DS1557_NVRAM_DATA_REG 0
  234. #define TODC_TYPE_DS1643_NVRAM_SIZE 0x1ff8
  235. #define TODC_TYPE_DS1643_SW_FLAGS 0
  236. #define TODC_TYPE_DS1643_YEAR 0x1fff
  237. #define TODC_TYPE_DS1643_MONTH 0x1ffe
  238. #define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */
  239. #define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */
  240. #define TODC_TYPE_DS1643_HOURS 0x1ffb
  241. #define TODC_TYPE_DS1643_MINUTES 0x1ffa
  242. #define TODC_TYPE_DS1643_SECONDS 0x1ff9
  243. #define TODC_TYPE_DS1643_CNTL_B 0x1ff9
  244. #define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */
  245. #define TODC_TYPE_DS1643_WATCHDOG 0x1fff
  246. #define TODC_TYPE_DS1643_INTERRUPTS 0x1fff
  247. #define TODC_TYPE_DS1643_ALARM_DATE 0x1fff
  248. #define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff
  249. #define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff
  250. #define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff
  251. #define TODC_TYPE_DS1643_CENTURY 0x1ff8
  252. #define TODC_TYPE_DS1643_FLAGS 0x1fff
  253. #define TODC_TYPE_DS1643_NVRAM_ADDR_REG 0
  254. #define TODC_TYPE_DS1643_NVRAM_DATA_REG 0
  256. #define TODC_TYPE_DS1693_NVRAM_SIZE 0 /* Not handled yet */
  257. #define TODC_TYPE_DS1693_SW_FLAGS 0
  258. #define TODC_TYPE_DS1693_YEAR 0x09
  259. #define TODC_TYPE_DS1693_MONTH 0x08
  260. #define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */
  261. #define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */
  262. #define TODC_TYPE_DS1693_HOURS 0x04
  263. #define TODC_TYPE_DS1693_MINUTES 0x02
  264. #define TODC_TYPE_DS1693_SECONDS 0x00
  265. #define TODC_TYPE_DS1693_CNTL_B 0x0b
  266. #define TODC_TYPE_DS1693_CNTL_A 0x0a
  267. #define TODC_TYPE_DS1693_WATCHDOG 0xff
  268. #define TODC_TYPE_DS1693_INTERRUPTS 0xff
  269. #define TODC_TYPE_DS1693_ALARM_DATE 0x49
  270. #define TODC_TYPE_DS1693_ALARM_HOUR 0x05
  271. #define TODC_TYPE_DS1693_ALARM_MINUTES 0x03
  272. #define TODC_TYPE_DS1693_ALARM_SECONDS 0x01
  273. #define TODC_TYPE_DS1693_CENTURY 0x48
  274. #define TODC_TYPE_DS1693_FLAGS 0xff
  275. #define TODC_TYPE_DS1693_NVRAM_ADDR_REG 0
  276. #define TODC_TYPE_DS1693_NVRAM_DATA_REG 0
  278. #define TODC_TYPE_DS1743_NVRAM_SIZE 0x1ff8
  279. #define TODC_TYPE_DS1743_SW_FLAGS 0
  280. #define TODC_TYPE_DS1743_YEAR 0x1fff
  281. #define TODC_TYPE_DS1743_MONTH 0x1ffe
  282. #define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */
  283. #define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */
  284. #define TODC_TYPE_DS1743_HOURS 0x1ffb
  285. #define TODC_TYPE_DS1743_MINUTES 0x1ffa
  286. #define TODC_TYPE_DS1743_SECONDS 0x1ff9
  287. #define TODC_TYPE_DS1743_CNTL_B 0x1ff9
  288. #define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */
  289. #define TODC_TYPE_DS1743_WATCHDOG 0x1fff
  290. #define TODC_TYPE_DS1743_INTERRUPTS 0x1fff
  291. #define TODC_TYPE_DS1743_ALARM_DATE 0x1fff
  292. #define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff
  293. #define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff
  294. #define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff
  295. #define TODC_TYPE_DS1743_CENTURY 0x1ff8
  296. #define TODC_TYPE_DS1743_FLAGS 0x1fff
  297. #define TODC_TYPE_DS1743_NVRAM_ADDR_REG 0
  298. #define TODC_TYPE_DS1743_NVRAM_DATA_REG 0
  300. #define TODC_TYPE_DS1746_NVRAM_SIZE 0x1fff8
  301. #define TODC_TYPE_DS1746_SW_FLAGS 0
  302. #define TODC_TYPE_DS1746_YEAR 0x1ffff
  303. #define TODC_TYPE_DS1746_MONTH 0x1fffe
  304. #define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */
  305. #define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */
  306. #define TODC_TYPE_DS1746_HOURS 0x1fffb
  307. #define TODC_TYPE_DS1746_MINUTES 0x1fffa
  308. #define TODC_TYPE_DS1746_SECONDS 0x1fff9
  309. #define TODC_TYPE_DS1746_CNTL_B 0x1fff9
  310. #define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */
  311. #define TODC_TYPE_DS1746_WATCHDOG 0x00000
  312. #define TODC_TYPE_DS1746_INTERRUPTS 0x00000
  313. #define TODC_TYPE_DS1746_ALARM_DATE 0x00000
  314. #define TODC_TYPE_DS1746_ALARM_HOUR 0x00000
  315. #define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000
  316. #define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000
  317. #define TODC_TYPE_DS1746_CENTURY 0x00000
  318. #define TODC_TYPE_DS1746_FLAGS 0x00000
  319. #define TODC_TYPE_DS1746_NVRAM_ADDR_REG 0
  320. #define TODC_TYPE_DS1746_NVRAM_DATA_REG 0
  322. #define TODC_TYPE_DS1747_NVRAM_SIZE 0x7fff8
  323. #define TODC_TYPE_DS1747_SW_FLAGS 0
  324. #define TODC_TYPE_DS1747_YEAR 0x7ffff
  325. #define TODC_TYPE_DS1747_MONTH 0x7fffe
  326. #define TODC_TYPE_DS1747_DOM 0x7fffd /* Day of Month */
  327. #define TODC_TYPE_DS1747_DOW 0x7fffc /* Day of Week */
  328. #define TODC_TYPE_DS1747_HOURS 0x7fffb
  329. #define TODC_TYPE_DS1747_MINUTES 0x7fffa
  330. #define TODC_TYPE_DS1747_SECONDS 0x7fff9
  331. #define TODC_TYPE_DS1747_CNTL_B 0x7fff9
  332. #define TODC_TYPE_DS1747_CNTL_A 0x7fff8 /* control_a R/W regs */
  333. #define TODC_TYPE_DS1747_WATCHDOG 0x00000
  334. #define TODC_TYPE_DS1747_INTERRUPTS 0x00000
  335. #define TODC_TYPE_DS1747_ALARM_DATE 0x00000
  336. #define TODC_TYPE_DS1747_ALARM_HOUR 0x00000
  337. #define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000
  338. #define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000
  339. #define TODC_TYPE_DS1747_CENTURY 0x00000
  340. #define TODC_TYPE_DS1747_FLAGS 0x00000
  341. #define TODC_TYPE_DS1747_NVRAM_ADDR_REG 0
  342. #define TODC_TYPE_DS1747_NVRAM_DATA_REG 0
  344. #define TODC_TYPE_MC146818_NVRAM_SIZE 0 /* XXXX */
  345. #define TODC_TYPE_MC146818_SW_FLAGS 0
  346. #define TODC_TYPE_MC146818_YEAR 0x09
  347. #define TODC_TYPE_MC146818_MONTH 0x08
  348. #define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */
  349. #define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */
  350. #define TODC_TYPE_MC146818_HOURS 0x04
  351. #define TODC_TYPE_MC146818_MINUTES 0x02
  352. #define TODC_TYPE_MC146818_SECONDS 0x00
  353. #define TODC_TYPE_MC146818_CNTL_B 0x0a
  354. #define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */
  355. #define TODC_TYPE_MC146818_WATCHDOG 0x0c
  356. #define TODC_TYPE_MC146818_INTERRUPTS 0x0d
  357. #define TODC_TYPE_MC146818_ALARM_DATE 0xff
  358. #define TODC_TYPE_MC146818_ALARM_HOUR 0x05
  359. #define TODC_TYPE_MC146818_ALARM_MINUTES 0x03
  360. #define TODC_TYPE_MC146818_ALARM_SECONDS 0x01
  361. #define TODC_TYPE_MC146818_CENTURY 0xff
  362. #define TODC_TYPE_MC146818_FLAGS 0xff
  363. #define TODC_TYPE_MC146818_NVRAM_ADDR_REG 0
  364. #define TODC_TYPE_MC146818_NVRAM_DATA_REG 0
  366. #define TODC_TYPE_PC97307_NVRAM_SIZE 0 /* No NVRAM? */
  367. #define TODC_TYPE_PC97307_SW_FLAGS 0
  368. #define TODC_TYPE_PC97307_YEAR 0x09
  369. #define TODC_TYPE_PC97307_MONTH 0x08
  370. #define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */
  371. #define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */
  372. #define TODC_TYPE_PC97307_HOURS 0x04
  373. #define TODC_TYPE_PC97307_MINUTES 0x02
  374. #define TODC_TYPE_PC97307_SECONDS 0x00
  375. #define TODC_TYPE_PC97307_CNTL_B 0x0a
  376. #define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */
  377. #define TODC_TYPE_PC97307_WATCHDOG 0x0c
  378. #define TODC_TYPE_PC97307_INTERRUPTS 0x0d
  379. #define TODC_TYPE_PC97307_ALARM_DATE 0xff
  380. #define TODC_TYPE_PC97307_ALARM_HOUR 0x05
  381. #define TODC_TYPE_PC97307_ALARM_MINUTES 0x03
  382. #define TODC_TYPE_PC97307_ALARM_SECONDS 0x01
  383. #define TODC_TYPE_PC97307_CENTURY 0xff
  384. #define TODC_TYPE_PC97307_FLAGS 0xff
  385. #define TODC_TYPE_PC97307_NVRAM_ADDR_REG 0
  386. #define TODC_TYPE_PC97307_NVRAM_DATA_REG 0
  388. /*
  389.  * Define macros to allocate and init the todc_info_t table that will
  390.  * be used by the todc_time.c routines.
  391.  */
  392. #define TODC_ALLOC()
  393. static todc_info_t todc_info_alloc;
  394. todc_info_t *todc_info = &todc_info_alloc;
  396. #define TODC_INIT(clock_type, as0, as1, data, bits) {
  397. todc_info->rtc_type = clock_type;
  399. todc_info->nvram_as0  = (unsigned char *)(as0);
  400. todc_info->nvram_as1  = (unsigned char *)(as1);
  401. todc_info->nvram_data = (unsigned char *)(data);
  403. todc_info->as0_bits = (bits);
  405. todc_info->nvram_size     = clock_type ##_NVRAM_SIZE;
  406. todc_info->sw_flags       = clock_type ##_SW_FLAGS;
  408. todc_info->year           = clock_type ##_YEAR;
  409. todc_info->month          = clock_type ##_MONTH;
  410. todc_info->day_of_month   = clock_type ##_DOM;
  411. todc_info->day_of_week    = clock_type ##_DOW;
  412. todc_info->hours          = clock_type ##_HOURS;
  413. todc_info->minutes        = clock_type ##_MINUTES;
  414. todc_info->seconds        = clock_type ##_SECONDS;
  415. todc_info->control_b      = clock_type ##_CNTL_B;
  416. todc_info->control_a      = clock_type ##_CNTL_A;
  417. todc_info->watchdog       = clock_type ##_WATCHDOG;
  418. todc_info->interrupts     = clock_type ##_INTERRUPTS;
  419. todc_info->alarm_date     = clock_type ##_ALARM_DATE;
  420. todc_info->alarm_hour     = clock_type ##_ALARM_HOUR;
  421. todc_info->alarm_minutes  = clock_type ##_ALARM_MINUTES;
  422. todc_info->alarm_seconds  = clock_type ##_ALARM_SECONDS;
  423. todc_info->century        = clock_type ##_CENTURY;
  424. todc_info->flags          = clock_type ##_FLAGS;
  426. todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG;
  427. todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG;
  428. }
  430. #ifndef BCD_TO_BIN
  431. #define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
  432. #endif
  434. #ifndef BIN_TO_BCD
  435. #define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
  436. #endif
  438. extern todc_info_t *todc_info;
  440. unsigned char todc_direct_read_val(int addr);
  441. void todc_direct_write_val(int addr, unsigned char val);
  442. unsigned char todc_m48txx_read_val(int addr);
  443. void todc_m48txx_write_val(int addr, unsigned char val);
  444. unsigned char todc_mc146818_read_val(int addr);
  445. void todc_mc146818_write_val(int addr, unsigned char val);
  447. long todc_time_init(void);
  448. unsigned long todc_get_rtc_time(void);
  449. int todc_set_rtc_time(unsigned long nowtime);
  450. void todc_calibrate_decr(void);
  452. #endif /* __PPC_KERNEL_TODC_H */