/drivers/media/isdbtmm/tuner_drv_wrap.c

https://gitlab.com/SerenityS/android_kernel_jalteskt · C · 334 lines · 177 code · 34 blank · 123 comment · 16 complexity · 4a3eb81a52d10091de02fa7a6defe009 MD5 · raw file 

    

  1. /*
    2. 

  2. *
    3. 

  3. * drivers/media/isdbtmm/tuner_drv_wrap.c
    4. 

  4. *
    5. 

  5. * MM Tuner Driver
    6. 

  6. *
    7. 

  7. * Copyright (C) (2013, Samsung Electronics)
    8. 

  8. *
    9. 

  9. * This program is free software; you can redistribute it and/or modify
    10. 

  10. * it under the terms of the GNU General Public License as published by
    11. 

  11. * the Free Software Foundation version 2.
    12. 

  12. *
    13. 

  13. * This program is distributed "as is" WITHOUT ANY WARRANTY of any
    14. 

  14. * kind, whether express or implied; without even the implied warranty
    15. 

  15. * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16. 

  16. * GNU General Public License for more details.
    17. 

  17. *
    18. 

  18. */
    19. 

  19. 

  20. /******************************************************************************
    21. 

  21.  * include
    22. 

  22.  ******************************************************************************/
    23. 

  23. #include <linux/module.h>
    24. 

  24. #include <linux/kernel.h>
    25. 

  25. #include <linux/init.h>
    26. 

  26. #include <linux/types.h>
    27. 

  27. #include <linux/fs.h>
    28. 

  28. #include <linux/cdev.h>
    29. 

  29. #include <linux/sched.h>
    30. 

  30. #include <linux/platform_device.h>
    31. 

  31. #include <linux/device.h>
    32. 

  32. #include <linux/err.h>
    33. 

  33. #include <linux/slab.h>
    34. 

  34. #include <linux/i2c.h>
    35. 

  35. #include <linux/i2c-dev.h>
    36. 

  36. #include <linux/mm.h>
    37. 

  37. #include <asm/uaccess.h>
    38. 

  38. #include "tuner_drv.h"
    39. 

  39. #include <asm/system_info.h>
    40. 

  40. 

  41. #ifdef TUNER_CONFIG_IRQ_PC_LINUX
    42. 

  42. #include "../../../i2c-parport-x/i2c-parport.h"
    43. 

  43. #endif  /* TUNER_CONFIG_IRQ_PC_LINUX */
    44. 

  44. 

  45. /******************************************************************************/
    46. 

  46. /* function                                                                   */
    47. 

  47. /******************************************************************************/
    48. 

  48. int tuner_drv_ctl_power( int data );
    49. 

  49. int tuner_drv_set_interrupt( void );
    50. 

  50. void tuner_drv_release_interrupt( void );
    51. 

  51. void tuner_drv_gpio_config_poweron( void );
    52. 

  52. void tuner_drv_gpio_config_poweroff( void );
    53. 

  53. 

  54. /******************************************************************************
    55. 

  55.  * code area
    56. 

  56.  ******************************************************************************/
    57. 

  57. /******************************************************************************
    58. 

  58.  *    function:   tuner_drv_ctl_power
    59. 

  59.  *    brief   :   power control of a driver
    60. 

  60.  *    date    :   2011.08.26
    61. 

  61.  *    author  :   M.Takahashi(*)
    62. 

  62.  *
    63. 

  63.  *    return  :    0                   normal exit
    64. 

  64.  *            :   -1                   error exit
    65. 

  65.  *    input   :   data                 setting data
    66. 

  66.  *    output  :   none
    67. 

  67.  ******************************************************************************/
    68. 

  68. int tuner_drv_ctl_power( int data )
    69. 

  69. {	
    70. 

  70. 	/* power on */
    71. 

  71. 	if( data == TUNER_DRV_CTL_POWON )
    72. 

  72. 	{
    73. 

  73. 		DEBUG_PRINT("tuner_drv_ctl_power poweron\n");
    74. 

  74. 		
    75. 

  75. 		/* poweron gpio config setting */
    76. 

  76. 		tuner_drv_gpio_config_poweron();
    77. 

  77. 		
    78. 

  78. 		/* TMM_PWR_EN high */
    79. 

  79. 		gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_HIGH);
    80. 

  80. 		
    81. 

  81. 		/* 15ms sleep */
    82. 

  82. 		usleep_range(15000, 15000);
    83. 

  83. 		
    84. 

  84. 		/* TMM_RST high */
    85. 

  85. 		gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_HIGH);
    86. 

  86. 		
    87. 

  87. 		/* 2ms sleep */
    88. 

  88. 		usleep_range(2000, 2000);
    89. 

  89. 	}
    90. 

  90. 	/* power off */
    91. 

  91. 	else
    92. 

  92. 	{
    93. 

  93. 		DEBUG_PRINT("tuner_drv_ctl_power poweroff\n");
    94. 

  94. 		
    95. 

  95. 		/* poweroff gpio config setting */
    96. 

  96. 		tuner_drv_gpio_config_poweroff();
    97. 

  97. 		
    98. 

  98. 		/* 1ms sleep */
    99. 

  99. 		usleep_range(1000, 1000);
    100. 

  100. 		
    101. 

  101. 		/* TMM_RST low */
    102. 

  102. 		gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_LOW);
    103. 

  103. 		
    104. 

  104. 		/* 2ms sleep */
    105. 

  105. 		usleep_range(2000, 2000);
    106. 

  106. 		
    107. 

  107. 		/* TMM_PWR_EN low */
    108. 

  108. 		gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_LOW);
    109. 

  109. 	}
    110. 

  110. 

  111. 	return 0;
    112. 

  112. }
    113. 

  113. 

  114. /******************************************************************************
    115. 

  115.  *    function:   tuner_drv_set_interrupt
    116. 

  116.  *    brief   :   interruption registration control of a driver
    117. 

  117.  *    date    :   2011.08.26
    118. 

  118.  *    author  :   M.Takahashi(*)
    119. 

  119.  *
    120. 

  120.  *    return  :    0                   normal exit
    121. 

  121.  *            :   -1                   error exit
    122. 

  122.  *    input   :   pdev
    123. 

  123.  *    output  :   none
    124. 

  124.  ******************************************************************************/
    125. 

  125. int tuner_drv_set_interrupt( void )
    126. 

  126. {
    127. 

  127. #ifndef TUNER_CONFIG_IRQ_PC_LINUX
    128. 

  128.     int ret;
    129. 

  129. 	
    130. 

  130. 	if(system_rev == 0x01)
    131. 

  131. 	{
    132. 

  132. 		/* HW-REV-0.3(0x01) */
    133. 

  133. 		ret = request_irq( GPIO_TMM_INT_REV03,
    134. 

  134.                        tuner_interrupt,
    135. 

  135.                        IRQF_DISABLED | IRQF_TRIGGER_RISING,
    136. 

  136.                        "mm_tuner",
    137. 

  137.                        NULL );
    138. 

  138. 	}
    139. 

  139. 	else
    140. 

  140. 	{
    141. 

  141. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    142. 

  142. 		ret = request_irq( GPIO_TMM_INT_REV00,
    143. 

  143. 						   tuner_interrupt,
    144. 

  144. 						   IRQF_DISABLED | IRQF_TRIGGER_RISING,
    145. 

  145. 						   "mm_tuner",
    146. 

  146. 						   NULL );
    147. 

  147. 	}
    148. 

  148. 

  149.     if( ret != 0 )
    150. 

  150.     {
    151. 

  151.         return -1;
    152. 

  152.     }
    153. 

  153. #else  /* TUNER_CONFIG_IRQ_PC_LINUX */
    154. 

  154.     i2c_set_interrupt( tuner_interrupt );
    155. 

  155. #endif /* TUNER_CONFIG_IRQ_PC_LINUX */
    156. 

  156.     return 0;
    157. 

  157. }
    158. 

  158. 

  159. /******************************************************************************
    160. 

  160.  *    function:   tuner_drv_release_interrupt
    161. 

  161.  *    brief   :   interruption registration release control of a driver
    162. 

  162.  *    date    :   2011.08.26
    163. 

  163.  *    author  :   M.Takahashi(*)
    164. 

  164.  *
    165. 

  165.  *    return  :   none
    166. 

  166.  *    input   :   none
    167. 

  167.  *    output  :   none
    168. 

  168.  ******************************************************************************/
    169. 

  169. void tuner_drv_release_interrupt( void )
    170. 

  170. {
    171. 

  171. #ifndef TUNER_CONFIG_IRQ_PC_LINUX
    172. 

  172. 	if(system_rev == 0x01)
    173. 

  173. 	{
    174. 

  174. 		/* HW-REV-0.3(0x01) */
    175. 

  175. 		free_irq( GPIO_TMM_INT_REV03, NULL );
    176. 

  176. 	}
    177. 

  177. 	else
    178. 

  178. 	{
    179. 

  179. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    180. 

  180. 		free_irq( GPIO_TMM_INT_REV00, NULL );
    181. 

  181. 	}
    182. 

  182. #else  /* TUNER_CONFIG_IRQ_PC_LINUX */
    183. 

  183.     i2c_release_interrupt( NULL );
    184. 

  184. #endif /* TUNER_CONFIG_IRQ_PC_LINUX */
    185. 

  185. }
    186. 

  186. 

  187. #ifdef TUNER_CONFIG_IRQ_LEVELTRIGGER
    188. 

  188. /******************************************************************************
    189. 

  189.  *    function:   tuner_drv_enable_interrupt
    190. 

  190.  *    brief   :   interruption registration enable control of a driver
    191. 

  191.  *    date    :   2011.09.18
    192. 

  192.  *    author  :   M.Takahashi(*)(*)
    193. 

  193.  *
    194. 

  194.  *    return  :   none
    195. 

  195.  *    input   :   none
    196. 

  196.  *    output  :   none
    197. 

  197.  ******************************************************************************/
    198. 

  198. void tuner_drv_enable_interrupt( void )
    199. 

  199. {
    200. 

  200. #ifndef TUNER_CONFIG_IRQ_PC_LINUX
    201. 

  201. 	if(system_rev == 0x01)
    202. 

  202. 	{
    203. 

  203. 		/* HW-REV-0.3(0x01) */
    204. 

  204. 		enable_irq( GPIO_TMM_INT_REV03)
    205. 

  205. 	}
    206. 

  206. 	else
    207. 

  207. 	{
    208. 

  208. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    209. 

  209. 		enable_irq( GPIO_TMM_INT_REV00)
    210. 

  210. 	}
    211. 

  211. #else  /* TUNER_CONFIG_IRQ_PC_LINUX */
    212. 

  212.     i2c_set_interrupt( tuner_interrupt );
    213. 

  213. #endif /* TUNER_CONFIG_IRQ_PC_LINUX */
    214. 

  214. }
    215. 

  215. 

  216. /******************************************************************************
    217. 

  217.  *    function:   tuner_drv_disable_interrupt
    218. 

  218.  *    brief   :   interruption registration disable control of a driver
    219. 

  219.  *    date    :   2011.09.18
    220. 

  220.  *    author  :   M.Takahashi(*)(*)
    221. 

  221.  *
    222. 

  222.  *    return  :   none
    223. 

  223.  *    input   :   none
    224. 

  224.  *    output  :   none
    225. 

  225.  ******************************************************************************/
    226. 

  226. void tuner_drv_disable_interrupt( void )
    227. 

  227. {
    228. 

  228. #ifndef TUNER_CONFIG_IRQ_PC_LINUX
    229. 

  229. 	if(system_rev == 0x01)
    230. 

  230. 	{
    231. 

  231. 		/* HW-REV-0.3(0x01) */
    232. 

  232. 		disable_irq( GPIO_TMM_INT_REV03);
    233. 

  233. 	}
    234. 

  234. 	else
    235. 

  235. 	{
    236. 

  236. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    237. 

  237. 		disable_irq( GPIO_TMM_INT_REV00);
    238. 

  238. 	}
    239. 

  239. #else  /* TUNER_CONFIG_IRQ_PC_LINUX */
    240. 

  240.     i2c_release_interrupt( NULL );
    241. 

  241. #endif /* TUNER_CONFIG_IRQ_PC_LINUX */
    242. 

  242. }
    243. 

  243. #endif /* TUNER_CONFIG_IRQ_LEVELTRIGGER */
    244. 

  244. 

  245. /******************************************************************************
    246. 

  246.  *    function:   tuner_drv_gpio_config_poweron
    247. 

  247.  *    brief   :   interruption registration disable control of a driver
    248. 

  248.  *    date    :   2012.12.18
    249. 

  249.  *    author  :   K.Matsumaru(*)(*)
    250. 

  250.  *
    251. 

  251.  *    return  :   none
    252. 

  252.  *    input   :   none
    253. 

  253.  *    output  :   none
    254. 

  254.  ******************************************************************************/
    255. 

  255. void tuner_drv_gpio_config_poweron( void )
    256. 

  256. {
    257. 

  257. 	if(system_rev == 0x01)
    258. 

  258. 	{
    259. 

  259. 		/* HW-REV-0.3(0x01) */
    260. 

  260. 		s3c_gpio_cfgpin(GPIO_TMM_INT_REV03, S3C_GPIO_INPUT);
    261. 

  261. 		s3c_gpio_setpull(GPIO_TMM_INT_REV03, S3C_GPIO_PULL_NONE);
    262. 

  262. 	}
    263. 

  263. 	else
    264. 

  264. 	{
    265. 

  265. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    266. 

  266. 		s3c_gpio_cfgpin(GPIO_TMM_INT_REV00, S3C_GPIO_INPUT);
    267. 

  267. 		s3c_gpio_setpull(GPIO_TMM_INT_REV00, S3C_GPIO_PULL_NONE);
    268. 

  268. 	}
    269. 

  269. 	s3c_gpio_cfgpin(GPIO_TMM_RST, S3C_GPIO_OUTPUT);
    270. 

  270. 	s3c_gpio_setpull(GPIO_TMM_RST, S3C_GPIO_PULL_NONE);
    271. 

  271. 	gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_LOW);
    272. 

  272. 

  273. 	s3c_gpio_cfgpin(GPIO_TMM_PWR_EN, S3C_GPIO_OUTPUT);
    274. 

  274. 	s3c_gpio_setpull(GPIO_TMM_PWR_EN, S3C_GPIO_PULL_NONE);
    275. 

  275. 	gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_LOW);
    276. 

  276. 	
    277. 

  277. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_CLK, GPIO_SPI_SFN);
    278. 

  278. 	s3c_gpio_setpull(GPIO_LTE_SPI_CLK, S3C_GPIO_PULL_NONE);
    279. 

  279. 

  280. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_MISO, GPIO_SPI_SFN);
    281. 

  281. 	s3c_gpio_setpull(GPIO_LTE_SPI_MISO, S3C_GPIO_PULL_NONE);
    282. 

  282. 	
    283. 

  283. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_CSN, GPIO_SPI_SFN);
    284. 

  284. 	s3c_gpio_setpull(GPIO_LTE_SPI_CSN, S3C_GPIO_PULL_NONE);
    285. 

  285. 

  286. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_MOSI, GPIO_SPI_SFN);
    287. 

  287. 	s3c_gpio_setpull(GPIO_LTE_SPI_MOSI, S3C_GPIO_PULL_NONE);
    288. 

  288. }
    289. 

  289. 

  290. /******************************************************************************
    291. 

  291.  *    function:   tuner_drv_gpio_config_poweroff
    292. 

  292.  *    brief   :   interruption registration disable control of a driver
    293. 

  293.  *    date    :   2012.12.18
    294. 

  294.  *    author  :   K.Matsumaru(*)(*)
    295. 

  295.  *
    296. 

  296.  *    return  :   none
    297. 

  297.  *    input   :   none
    298. 

  298.  *    output  :   none
    299. 

  299.  ******************************************************************************/
    300. 

  300. void tuner_drv_gpio_config_poweroff( void )
    301. 

  301. {
    302. 

  302. 	if(system_rev == 0x01)
    303. 

  303. 	{
    304. 

  304. 		/* HW-REV-0.3(0x01) */
    305. 

  305. 		s3c_gpio_cfgpin(GPIO_TMM_INT_REV03, S3C_GPIO_INPUT);
    306. 

  306. 		s3c_gpio_setpull(GPIO_TMM_INT_REV03, S3C_GPIO_PULL_NONE);
    307. 

  307. 	}
    308. 

  308. 	else
    309. 

  309. 	{
    310. 

  310. 		/* HW-REV-0.0(0x0b), HW-REV-0.1(0x09) */
    311. 

  311. 		s3c_gpio_cfgpin(GPIO_TMM_INT_REV00, S3C_GPIO_INPUT);
    312. 

  312. 		s3c_gpio_setpull(GPIO_TMM_INT_REV00, S3C_GPIO_PULL_NONE);
    313. 

  313. 	}
    314. 

  314. 	s3c_gpio_cfgpin(GPIO_TMM_RST, S3C_GPIO_OUTPUT);
    315. 

  315. 	s3c_gpio_setpull(GPIO_TMM_RST, S3C_GPIO_PULL_NONE);
    316. 

  316. 	gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_LOW);
    317. 

  317. 

  318. 	s3c_gpio_cfgpin(GPIO_TMM_PWR_EN, S3C_GPIO_OUTPUT);
    319. 

  319. 	s3c_gpio_setpull(GPIO_TMM_PWR_EN, S3C_GPIO_PULL_NONE);
    320. 

  320. 	gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_LOW);
    321. 

  321. 	
    322. 

  322. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_CLK, GPIO_SPI_SFN);
    323. 

  323. 	s3c_gpio_setpull(GPIO_LTE_SPI_CLK, S3C_GPIO_PULL_DOWN);
    324. 

  324. 

  325. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_MISO, GPIO_SPI_SFN);
    326. 

  326. 	s3c_gpio_setpull(GPIO_LTE_SPI_MISO, S3C_GPIO_PULL_DOWN);
    327. 

  327. 	
    328. 

  328. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_CSN, GPIO_SPI_SFN);
    329. 

  329. 	s3c_gpio_setpull(GPIO_LTE_SPI_CSN, S3C_GPIO_PULL_DOWN);
    330. 

  330. 

  331. 	s3c_gpio_cfgpin(GPIO_LTE_SPI_MOSI, GPIO_SPI_SFN);
    332. 

  332. 	s3c_gpio_setpull(GPIO_LTE_SPI_MOSI, S3C_GPIO_PULL_DOWN);
    333. 

  333. }
    334.