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C/C++ Source or Header  |  2008-12-24  |  12.1 KB  |  343 lines
  1. /*
  2.  * gpio.h  --  GPIO Driver for Wolfson WM8350 PMIC
  3.  *
  4.  * Copyright 2007 Wolfson Microelectronics PLC
  5.  *
  6.  *  This program is free software; you can redistribute  it and/or modify it
  7.  *  under  the terms of  the GNU General  Public License as published by the
  8.  *  Free Software Foundation;  either version 2 of the  License, or (at your
  9.  *  option) any later version.
  10.  *
  11.  */
  12.  
  13. #ifndef __LINUX_MFD_WM8350_GPIO_H_
  14. #define __LINUX_MFD_WM8350_GPIO_H_
  15.  
  16. #include <linux/platform_device.h>
  17.  
  18. /*
  19.  * GPIO Registers.
  20.  */
  21. #define WM8350_GPIO_DEBOUNCE                    0x80
  22. #define WM8350_GPIO_PIN_PULL_UP_CONTROL         0x81
  23. #define WM8350_GPIO_PULL_DOWN_CONTROL           0x82
  24. #define WM8350_GPIO_INT_MODE                    0x83
  25. #define WM8350_GPIO_CONTROL                     0x85
  26. #define WM8350_GPIO_CONFIGURATION_I_O           0x86
  27. #define WM8350_GPIO_PIN_POLARITY_TYPE           0x87
  28. #define WM8350_GPIO_FUNCTION_SELECT_1           0x8C
  29. #define WM8350_GPIO_FUNCTION_SELECT_2           0x8D
  30. #define WM8350_GPIO_FUNCTION_SELECT_3           0x8E
  31. #define WM8350_GPIO_FUNCTION_SELECT_4           0x8F
  32.  
  33. /*
  34.  * GPIO Functions
  35.  */
  36. #define WM8350_GPIO0_GPIO_IN            0x0
  37. #define WM8350_GPIO0_GPIO_OUT            0x0
  38. #define WM8350_GPIO0_PWR_ON_IN            0x1
  39. #define WM8350_GPIO0_PWR_ON_OUT            0x1
  40. #define WM8350_GPIO0_LDO_EN_IN            0x2
  41. #define WM8350_GPIO0_VRTC_OUT            0x2
  42. #define WM8350_GPIO0_LPWR1_IN            0x3
  43. #define WM8350_GPIO0_POR_B_OUT            0x3
  44.  
  45. #define WM8350_GPIO1_GPIO_IN            0x0
  46. #define WM8350_GPIO1_GPIO_OUT            0x0
  47. #define WM8350_GPIO1_PWR_ON_IN            0x1
  48. #define WM8350_GPIO1_DO_CONF_OUT        0x1
  49. #define WM8350_GPIO1_LDO_EN_IN            0x2
  50. #define WM8350_GPIO1_RESET_OUT            0x2
  51. #define WM8350_GPIO1_LPWR2_IN            0x3
  52. #define WM8350_GPIO1_MEMRST_OUT            0x3
  53.  
  54. #define WM8350_GPIO2_GPIO_IN            0x0
  55. #define WM8350_GPIO2_GPIO_OUT            0x0
  56. #define WM8350_GPIO2_PWR_ON_IN            0x1
  57. #define WM8350_GPIO2_PWR_ON_OUT            0x1
  58. #define WM8350_GPIO2_WAKE_UP_IN            0x2
  59. #define WM8350_GPIO2_VRTC_OUT            0x2
  60. #define WM8350_GPIO2_32KHZ_IN            0x3
  61. #define WM8350_GPIO2_32KHZ_OUT            0x3
  62.  
  63. #define WM8350_GPIO3_GPIO_IN            0x0
  64. #define WM8350_GPIO3_GPIO_OUT            0x0
  65. #define WM8350_GPIO3_PWR_ON_IN            0x1
  66. #define WM8350_GPIO3_P_CLK_OUT            0x1
  67. #define WM8350_GPIO3_LDO_EN_IN            0x2
  68. #define WM8350_GPIO3_VRTC_OUT            0x2
  69. #define WM8350_GPIO3_PWR_OFF_IN            0x3
  70. #define WM8350_GPIO3_32KHZ_OUT            0x3
  71.  
  72. #define WM8350_GPIO4_GPIO_IN            0x0
  73. #define WM8350_GPIO4_GPIO_OUT            0x0
  74. #define WM8350_GPIO4_MR_IN            0x1
  75. #define WM8350_GPIO4_MEM_RST_OUT        0x1
  76. #define WM8350_GPIO4_FLASH_IN            0x2
  77. #define WM8350_GPIO4_ADA_OUT            0x2
  78. #define WM8350_GPIO4_HIBERNATE_IN        0x3
  79. #define WM8350_GPIO4_FLASH_OUT            0x3
  80. #define WM8350_GPIO4_MICDET_OUT            0x4
  81. #define WM8350_GPIO4_MICSHT_OUT            0x5
  82.  
  83. #define WM8350_GPIO5_GPIO_IN            0x0
  84. #define WM8350_GPIO5_GPIO_OUT            0x0
  85. #define WM8350_GPIO5_LPWR1_IN            0x1
  86. #define WM8350_GPIO5_P_CLK_OUT            0x1
  87. #define WM8350_GPIO5_ADCLRCLK_IN        0x2
  88. #define WM8350_GPIO5_ADCLRCLK_OUT        0x2
  89. #define WM8350_GPIO5_HIBERNATE_IN        0x3
  90. #define WM8350_GPIO5_32KHZ_OUT            0x3
  91. #define WM8350_GPIO5_MICDET_OUT            0x4
  92. #define WM8350_GPIO5_MICSHT_OUT            0x5
  93. #define WM8350_GPIO5_ADA_OUT            0x6
  94. #define WM8350_GPIO5_OPCLK_OUT            0x7
  95.  
  96. #define WM8350_GPIO6_GPIO_IN            0x0
  97. #define WM8350_GPIO6_GPIO_OUT            0x0
  98. #define WM8350_GPIO6_LPWR2_IN            0x1
  99. #define WM8350_GPIO6_MEMRST_OUT            0x1
  100. #define WM8350_GPIO6_FLASH_IN            0x2
  101. #define WM8350_GPIO6_ADA_OUT            0x2
  102. #define WM8350_GPIO6_HIBERNATE_IN        0x3
  103. #define WM8350_GPIO6_RTC_OUT            0x3
  104. #define WM8350_GPIO6_MICDET_OUT            0x4
  105. #define WM8350_GPIO6_MICSHT_OUT            0x5
  106. #define WM8350_GPIO6_ADCLRCLKB_OUT        0x6
  107. #define WM8350_GPIO6_SDOUT_OUT            0x7
  108.  
  109. #define WM8350_GPIO7_GPIO_IN            0x0
  110. #define WM8350_GPIO7_GPIO_OUT            0x0
  111. #define WM8350_GPIO7_LPWR3_IN            0x1
  112. #define WM8350_GPIO7_P_CLK_OUT            0x1
  113. #define WM8350_GPIO7_MASK_IN            0x2
  114. #define WM8350_GPIO7_VCC_FAULT_OUT        0x2
  115. #define WM8350_GPIO7_HIBERNATE_IN        0x3
  116. #define WM8350_GPIO7_BATT_FAULT_OUT        0x3
  117. #define WM8350_GPIO7_MICDET_OUT            0x4
  118. #define WM8350_GPIO7_MICSHT_OUT            0x5
  119. #define WM8350_GPIO7_ADA_OUT            0x6
  120. #define WM8350_GPIO7_CSB_IN            0x7
  121.  
  122. #define WM8350_GPIO8_GPIO_IN            0x0
  123. #define WM8350_GPIO8_GPIO_OUT            0x0
  124. #define WM8350_GPIO8_MR_IN            0x1
  125. #define WM8350_GPIO8_VCC_FAULT_OUT        0x1
  126. #define WM8350_GPIO8_ADCBCLK_IN            0x2
  127. #define WM8350_GPIO8_ADCBCLK_OUT        0x2
  128. #define WM8350_GPIO8_PWR_OFF_IN            0x3
  129. #define WM8350_GPIO8_BATT_FAULT_OUT        0x3
  130. #define WM8350_GPIO8_ALTSCL_IN            0xf
  131.  
  132. #define WM8350_GPIO9_GPIO_IN            0x0
  133. #define WM8350_GPIO9_GPIO_OUT            0x0
  134. #define WM8350_GPIO9_HEARTBEAT_IN        0x1
  135. #define WM8350_GPIO9_VCC_FAULT_OUT        0x1
  136. #define WM8350_GPIO9_MASK_IN            0x2
  137. #define WM8350_GPIO9_LINE_GT_BATT_OUT        0x2
  138. #define WM8350_GPIO9_PWR_OFF_IN            0x3
  139. #define WM8350_GPIO9_BATT_FAULT_OUT        0x3
  140. #define WM8350_GPIO9_ALTSDA_OUT            0xf
  141.  
  142. #define WM8350_GPIO10_GPIO_IN            0x0
  143. #define WM8350_GPIO10_GPIO_OUT            0x0
  144. #define WM8350_GPIO10_ISINKC_OUT        0x1
  145. #define WM8350_GPIO10_PWR_OFF_IN        0x2
  146. #define WM8350_GPIO10_LINE_GT_BATT_OUT        0x2
  147. #define WM8350_GPIO10_CHD_IND_IN        0x3
  148.  
  149. #define WM8350_GPIO11_GPIO_IN            0x0
  150. #define WM8350_GPIO11_GPIO_OUT            0x0
  151. #define WM8350_GPIO11_ISINKD_OUT        0x1
  152. #define WM8350_GPIO11_WAKEUP_IN            0x2
  153. #define WM8350_GPIO11_LINE_GT_BATT_OUT        0x2
  154. #define WM8350_GPIO11_CHD_IND_IN        0x3
  155.  
  156. #define WM8350_GPIO12_GPIO_IN            0x0
  157. #define WM8350_GPIO12_GPIO_OUT            0x0
  158. #define WM8350_GPIO12_ISINKE_OUT        0x1
  159. #define WM8350_GPIO12_LINE_GT_BATT_OUT        0x2
  160. #define WM8350_GPIO12_LINE_EN_OUT        0x3
  161. #define WM8350_GPIO12_32KHZ_OUT            0x4
  162.  
  163. #define WM8350_GPIO_DIR_IN            0
  164. #define WM8350_GPIO_DIR_OUT            1
  165. #define WM8350_GPIO_ACTIVE_LOW            0
  166. #define WM8350_GPIO_ACTIVE_HIGH            1
  167. #define WM8350_GPIO_PULL_NONE            0
  168. #define WM8350_GPIO_PULL_UP            1
  169. #define WM8350_GPIO_PULL_DOWN            2
  170. #define WM8350_GPIO_INVERT_OFF            0
  171. #define WM8350_GPIO_INVERT_ON            1
  172. #define WM8350_GPIO_DEBOUNCE_OFF        0
  173. #define WM8350_GPIO_DEBOUNCE_ON            1
  174.  
  175. /*
  176.  * R128 (0x80) - GPIO Debounce
  177.  */
  178. #define WM8350_GP12_DB                          0x1000
  179. #define WM8350_GP11_DB                          0x0800
  180. #define WM8350_GP10_DB                          0x0400
  181. #define WM8350_GP9_DB                           0x0200
  182. #define WM8350_GP8_DB                           0x0100
  183. #define WM8350_GP7_DB                           0x0080
  184. #define WM8350_GP6_DB                           0x0040
  185. #define WM8350_GP5_DB                           0x0020
  186. #define WM8350_GP4_DB                           0x0010
  187. #define WM8350_GP3_DB                           0x0008
  188. #define WM8350_GP2_DB                           0x0004
  189. #define WM8350_GP1_DB                           0x0002
  190. #define WM8350_GP0_DB                           0x0001
  191.  
  192. /*
  193.  * R129 (0x81) - GPIO Pin pull up Control
  194.  */
  195. #define WM8350_GP12_PU                          0x1000
  196. #define WM8350_GP11_PU                          0x0800
  197. #define WM8350_GP10_PU                          0x0400
  198. #define WM8350_GP9_PU                           0x0200
  199. #define WM8350_GP8_PU                           0x0100
  200. #define WM8350_GP7_PU                           0x0080
  201. #define WM8350_GP6_PU                           0x0040
  202. #define WM8350_GP5_PU                           0x0020
  203. #define WM8350_GP4_PU                           0x0010
  204. #define WM8350_GP3_PU                           0x0008
  205. #define WM8350_GP2_PU                           0x0004
  206. #define WM8350_GP1_PU                           0x0002
  207. #define WM8350_GP0_PU                           0x0001
  208.  
  209. /*
  210.  * R130 (0x82) - GPIO Pull down Control
  211.  */
  212. #define WM8350_GP12_PD                          0x1000
  213. #define WM8350_GP11_PD                          0x0800
  214. #define WM8350_GP10_PD                          0x0400
  215. #define WM8350_GP9_PD                           0x0200
  216. #define WM8350_GP8_PD                           0x0100
  217. #define WM8350_GP7_PD                           0x0080
  218. #define WM8350_GP6_PD                           0x0040
  219. #define WM8350_GP5_PD                           0x0020
  220. #define WM8350_GP4_PD                           0x0010
  221. #define WM8350_GP3_PD                           0x0008
  222. #define WM8350_GP2_PD                           0x0004
  223. #define WM8350_GP1_PD                           0x0002
  224. #define WM8350_GP0_PD                           0x0001
  225.  
  226. /*
  227.  * R131 (0x83) - GPIO Interrupt Mode
  228.  */
  229. #define WM8350_GP12_INTMODE                     0x1000
  230. #define WM8350_GP11_INTMODE                     0x0800
  231. #define WM8350_GP10_INTMODE                     0x0400
  232. #define WM8350_GP9_INTMODE                      0x0200
  233. #define WM8350_GP8_INTMODE                      0x0100
  234. #define WM8350_GP7_INTMODE                      0x0080
  235. #define WM8350_GP6_INTMODE                      0x0040
  236. #define WM8350_GP5_INTMODE                      0x0020
  237. #define WM8350_GP4_INTMODE                      0x0010
  238. #define WM8350_GP3_INTMODE                      0x0008
  239. #define WM8350_GP2_INTMODE                      0x0004
  240. #define WM8350_GP1_INTMODE                      0x0002
  241. #define WM8350_GP0_INTMODE                      0x0001
  242.  
  243. /*
  244.  * R133 (0x85) - GPIO Control
  245.  */
  246. #define WM8350_GP_DBTIME_MASK                   0x00C0
  247.  
  248. /*
  249.  * R134 (0x86) - GPIO Configuration (i/o)
  250.  */
  251. #define WM8350_GP12_DIR                         0x1000
  252. #define WM8350_GP11_DIR                         0x0800
  253. #define WM8350_GP10_DIR                         0x0400
  254. #define WM8350_GP9_DIR                          0x0200
  255. #define WM8350_GP8_DIR                          0x0100
  256. #define WM8350_GP7_DIR                          0x0080
  257. #define WM8350_GP6_DIR                          0x0040
  258. #define WM8350_GP5_DIR                          0x0020
  259. #define WM8350_GP4_DIR                          0x0010
  260. #define WM8350_GP3_DIR                          0x0008
  261. #define WM8350_GP2_DIR                          0x0004
  262. #define WM8350_GP1_DIR                          0x0002
  263. #define WM8350_GP0_DIR                          0x0001
  264.  
  265. /*
  266.  * R135 (0x87) - GPIO Pin Polarity / Type
  267.  */
  268. #define WM8350_GP12_CFG                         0x1000
  269. #define WM8350_GP11_CFG                         0x0800
  270. #define WM8350_GP10_CFG                         0x0400
  271. #define WM8350_GP9_CFG                          0x0200
  272. #define WM8350_GP8_CFG                          0x0100
  273. #define WM8350_GP7_CFG                          0x0080
  274. #define WM8350_GP6_CFG                          0x0040
  275. #define WM8350_GP5_CFG                          0x0020
  276. #define WM8350_GP4_CFG                          0x0010
  277. #define WM8350_GP3_CFG                          0x0008
  278. #define WM8350_GP2_CFG                          0x0004
  279. #define WM8350_GP1_CFG                          0x0002
  280. #define WM8350_GP0_CFG                          0x0001
  281.  
  282. /*
  283.  * R140 (0x8C) - GPIO Function Select 1
  284.  */
  285. #define WM8350_GP3_FN_MASK                      0xF000
  286. #define WM8350_GP2_FN_MASK                      0x0F00
  287. #define WM8350_GP1_FN_MASK                      0x00F0
  288. #define WM8350_GP0_FN_MASK                      0x000F
  289.  
  290. /*
  291.  * R141 (0x8D) - GPIO Function Select 2
  292.  */
  293. #define WM8350_GP7_FN_MASK                      0xF000
  294. #define WM8350_GP6_FN_MASK                      0x0F00
  295. #define WM8350_GP5_FN_MASK                      0x00F0
  296. #define WM8350_GP4_FN_MASK                      0x000F
  297.  
  298. /*
  299.  * R142 (0x8E) - GPIO Function Select 3
  300.  */
  301. #define WM8350_GP11_FN_MASK                     0xF000
  302. #define WM8350_GP10_FN_MASK                     0x0F00
  303. #define WM8350_GP9_FN_MASK                      0x00F0
  304. #define WM8350_GP8_FN_MASK                      0x000F
  305.  
  306. /*
  307.  * R143 (0x8F) - GPIO Function Select 4
  308.  */
  309. #define WM8350_GP12_FN_MASK                     0x000F
  310.  
  311. /*
  312.  * R230 (0xE6) - GPIO Pin Status
  313.  */
  314. #define WM8350_GP12_LVL                         0x1000
  315. #define WM8350_GP11_LVL                         0x0800
  316. #define WM8350_GP10_LVL                         0x0400
  317. #define WM8350_GP9_LVL                          0x0200
  318. #define WM8350_GP8_LVL                          0x0100
  319. #define WM8350_GP7_LVL                          0x0080
  320. #define WM8350_GP6_LVL                          0x0040
  321. #define WM8350_GP5_LVL                          0x0020
  322. #define WM8350_GP4_LVL                          0x0010
  323. #define WM8350_GP3_LVL                          0x0008
  324. #define WM8350_GP2_LVL                          0x0004
  325. #define WM8350_GP1_LVL                          0x0002
  326. #define WM8350_GP0_LVL                          0x0001
  327.  
  328. struct wm8350;
  329.  
  330. int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,
  331.                int pol, int pull, int invert, int debounce);
  332.  
  333. struct wm8350_gpio {
  334.     struct platform_device *pdev;
  335. };
  336.  
  337. /*
  338.  * GPIO Interrupts
  339.  */
  340. #define WM8350_IRQ_GPIO(x)                      (50 + x)
  341.  
  342. #endif
  343.