core_spi.c 28 KB

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  1. /*
  2. * Copyright (c) 2022 OpenLuat & AirM2M
  3. *
  4. * Permission is hereby granted, free of charge, to any person obtaining a copy of
  5. * this software and associated documentation files (the "Software"), to deal in
  6. * the Software without restriction, including without limitation the rights to
  7. * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  8. * the Software, and to permit persons to whom the Software is furnished to do so,
  9. * subject to the following conditions:
  10. *
  11. * The above copyright notice and this permission notice shall be included in all
  12. * copies or substantial portions of the Software.
  13. *
  14. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  16. * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  17. * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  18. * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20. */
  21. #include "user.h"
  22. #define HSPIM_CR0_CLEAR_MASK ((uint32_t)~0xFFEEFFFF)
  23. #define HSPIM_CR0_MODE_SELECT_CLEAR_MASK ((uint32_t)~0x1C00)
  24. #define HSPIM_CR1_CLEAR_MASK ((uint32_t)~0xFFFFF)
  25. #define HSPIM_FCR_CLEAR_MASK ((uint32_t)~0x3F3F3F00)
  26. #define HSPIM_DCR_RECEIVE_LEVEL_CLEAR_MASK ((uint32_t)~0x3F80)
  27. #define HSPIM_DCR_TRANSMIT_LEVEL_CLEAR_MASK ((uint32_t)~0x7F)
  28. #define HSPIM_CR0_PARAM_ENABLE_POS (0x18)
  29. #define HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS (0x14)
  30. #define HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS (0x10)
  31. #define HSPIM_CR0_PARAM_INTERRPUT_RX_POS (0x0F)
  32. #define HSPIM_CR0_PARAM_INTERRPUT_TX_POS (0x0E)
  33. #define HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS (0x0D)
  34. #define HSPIM_CR0_PARAM_MODEL_SELECT_POS (0x0A)
  35. #define HSPIM_CR0_PARAM_FIRST_BIT_POS (0x09)
  36. #define HSPIM_CR0_PARAM_CPOL_POS (0x08)
  37. #define HSPIM_CR0_PARAM_CPHA_POS (0x07)
  38. #define HSPIM_CR0_PARAM_DIVIDE_ENABLE_POS (0x02)
  39. #define HSPIM_CR0_PARAM_TRANSMIT_ENABLE_POS (0x01)
  40. #define HSPIM_CR0_PARAM_BUSY_POS (0x00)
  41. #define HSPIM_CR1_PARAM_BAUDRATE_POS (0x0A)
  42. #define HSPIM_CR1_PARAM_RECEIVE_DATA_LENGTH_POS (0x00)
  43. #define HSPIM_DCR_PARAM_DMA_RECEIVE_LEVEL_POS (0x07)
  44. #define HSPIM_DCR_PARAM_DMA_TRANSMIT_LEVEL_POS (0x00)
  45. #define HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS (0x08)
  46. #define HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS (0x10)
  47. #define HSPIM_SR_PUSH_FULL_TX (1 << 4)
  48. #define HSPIM_SR_POP_EMPTY_RX (1 << 10)
  49. #define HSPIM_FIFO_TX_NUM (64)
  50. #define HSPIM_FIFO_RX_NUM (64)
  51. #define HSPIM_FIFO_LEVEL (48)
  52. #define SPIM_FIFO_TX_NUM (16)
  53. #define SPIM_FIFO_RX_NUM (16)
  54. #define SPIM_FIFO_RX_LEVEL (7)
  55. #define SPIM_FIFO_TX_LEVEL (8)
  56. typedef struct
  57. {
  58. const volatile void *RegBase;
  59. const int32_t IrqLine;
  60. const uint16_t DMATxChannel;
  61. const uint16_t DMARxChannel;
  62. CBFuncEx_t Callback;
  63. void *pParam;
  64. HANDLE Sem;
  65. Buffer_Struct TxBuf;
  66. Buffer_Struct RxBuf;
  67. uint32_t Speed;
  68. uint8_t DMATxStream;
  69. uint8_t DMARxStream;
  70. uint8_t Is16Bit;
  71. uint8_t IsOnlyTx;
  72. uint8_t IsBusy;
  73. uint8_t IsBlockMode;
  74. }SPI_ResourceStruct;
  75. static SPI_ResourceStruct prvSPI[SPI_MAX] = {
  76. {
  77. HSPIM,
  78. SPI5_IRQn,
  79. SYSCTRL_PHER_CTRL_DMA_CHx_IF_HSPI_TX,
  80. SYSCTRL_PHER_CTRL_DMA_CHx_IF_HSPI_RX,
  81. },
  82. {
  83. SPIM0,
  84. SPI0_IRQn,
  85. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_TX,
  86. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_RX,
  87. },
  88. {
  89. SPIM1,
  90. SPI1_IRQn,
  91. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI1_TX,
  92. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI1_RX,
  93. },
  94. {
  95. SPIM2,
  96. SPI2_IRQn,
  97. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI2_TX,
  98. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI2_RX,
  99. },
  100. {
  101. SPIS0,
  102. SPI0_IRQn,
  103. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_TX,
  104. SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_RX,
  105. },
  106. };
  107. static void HSPI_IrqHandle(int32_t IrqLine, void *pData)
  108. {
  109. uint32_t SpiID = HSPI_ID0;
  110. uint32_t RxLevel, i, TxLen;
  111. HSPIM_TypeDef *SPI = HSPIM;
  112. volatile uint32_t DummyData;
  113. if (!prvSPI[SpiID].IsBusy)
  114. {
  115. ISR_Clear(prvSPI[SpiID].IrqLine);
  116. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  117. return;
  118. }
  119. if (prvSPI[SpiID].RxBuf.Data)
  120. {
  121. while (prvSPI[SpiID].RxBuf.Pos < prvSPI[SpiID].RxBuf.MaxLen)
  122. {
  123. if (SPI->SR & HSPIM_SR_POP_EMPTY_RX)
  124. {
  125. break;
  126. }
  127. else
  128. {
  129. prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos] = SPI->RDR;
  130. prvSPI[SpiID].RxBuf.Pos++;
  131. }
  132. }
  133. }
  134. else
  135. {
  136. while (prvSPI[SpiID].RxBuf.Pos < prvSPI[SpiID].RxBuf.MaxLen)
  137. {
  138. if (SPI->SR & HSPIM_SR_POP_EMPTY_RX)
  139. {
  140. break;
  141. }
  142. else
  143. {
  144. DummyData = SPI->RDR;
  145. prvSPI[SpiID].RxBuf.Pos++;
  146. }
  147. }
  148. }
  149. if (prvSPI[SpiID].RxBuf.Pos >= prvSPI[SpiID].RxBuf.MaxLen)
  150. {
  151. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  152. prvSPI[SpiID].IsBusy = 0;
  153. ISR_Clear(prvSPI[SpiID].IrqLine);
  154. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  155. if ((prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos) || (prvSPI[SpiID].RxBuf.Pos != prvSPI[SpiID].RxBuf.MaxLen))
  156. {
  157. DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
  158. }
  159. #ifdef __BUILD_OS__
  160. if (prvSPI[SpiID].IsBlockMode)
  161. {
  162. OS_MutexRelease(prvSPI[SpiID].Sem);
  163. }
  164. #endif
  165. PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
  166. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  167. return;
  168. }
  169. if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
  170. {
  171. i = 0;
  172. TxLen = (HSPIM_FIFO_TX_NUM - (SPI->FSR & 0x0000003f));
  173. if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
  174. {
  175. TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
  176. }
  177. while((i < TxLen))
  178. {
  179. SPI->WDR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
  180. i++;
  181. }
  182. prvSPI[SpiID].TxBuf.Pos += TxLen;
  183. if (prvSPI[SpiID].TxBuf.Pos >= prvSPI[SpiID].TxBuf.MaxLen)
  184. {
  185. SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
  186. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  187. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  188. }
  189. }
  190. else
  191. {
  192. SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
  193. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  194. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  195. }
  196. }
  197. static int32_t SPI_DMADoneCB(void *pData, void *pParam)
  198. {
  199. uint32_t SpiID = (uint32_t)pData;
  200. uint32_t RxLevel;
  201. if (prvSPI[SpiID].RxBuf.MaxLen > prvSPI[SpiID].RxBuf.Pos)
  202. {
  203. RxLevel = ((prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos) > 4080)?4000:(prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos);
  204. DMA_ClearStreamFlag(prvSPI[SpiID].DMATxStream);
  205. DMA_ClearStreamFlag(prvSPI[SpiID].DMARxStream);
  206. if (prvSPI[SpiID].IsOnlyTx)
  207. {
  208. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  209. // DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, NULL, NULL, 0);
  210. }
  211. else
  212. {
  213. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, NULL, NULL, 0);
  214. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  215. }
  216. prvSPI[SpiID].RxBuf.Pos += RxLevel;
  217. prvSPI[SpiID].TxBuf.Pos += RxLevel;
  218. }
  219. else
  220. {
  221. prvSPI[SpiID].IsBusy = 0;
  222. if ((prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos) || (prvSPI[SpiID].RxBuf.Pos != prvSPI[SpiID].RxBuf.MaxLen))
  223. {
  224. DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
  225. }
  226. #ifdef __BUILD_OS__
  227. if (prvSPI[SpiID].IsBlockMode)
  228. {
  229. OS_MutexRelease(prvSPI[SpiID].Sem);
  230. }
  231. #endif
  232. if (SpiID)
  233. {
  234. PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
  235. }
  236. else
  237. {
  238. PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
  239. }
  240. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  241. }
  242. }
  243. static void SPI_IrqHandle(int32_t IrqLine, void *pData)
  244. {
  245. uint32_t SpiID = (uint32_t)pData;
  246. volatile uint32_t DummyData;
  247. uint32_t RxLevel, SR, i, TxLen;
  248. SPI_TypeDef *SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  249. if (!prvSPI[SpiID].IsBusy)
  250. {
  251. SR = SPI->ICR;
  252. SPI->IMR = 0;
  253. SPI->SER = 0;
  254. ISR_Clear(prvSPI[SpiID].IrqLine);
  255. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  256. return;
  257. }
  258. TxLen = SPIM_FIFO_TX_NUM - SPI->TXFLR;
  259. SR = SPI->ICR;
  260. if (prvSPI[SpiID].RxBuf.Data)
  261. {
  262. while(SPI->RXFLR)
  263. {
  264. prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos] = SPI->DR;
  265. prvSPI[SpiID].RxBuf.Pos++;
  266. }
  267. }
  268. else
  269. {
  270. while(SPI->RXFLR)
  271. {
  272. DummyData = SPI->DR;
  273. prvSPI[SpiID].RxBuf.Pos++;
  274. }
  275. }
  276. if (prvSPI[SpiID].RxBuf.Pos >= prvSPI[SpiID].RxBuf.MaxLen)
  277. {
  278. SR = SPI->ICR;
  279. SPI->IMR = 0;
  280. SPI->SER = 0;
  281. prvSPI[SpiID].IsBusy = 0;
  282. ISR_Clear(prvSPI[SpiID].IrqLine);
  283. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  284. if (prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos)
  285. {
  286. DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
  287. }
  288. #ifdef __BUILD_OS__
  289. if (prvSPI[SpiID].IsBlockMode)
  290. {
  291. OS_MutexRelease(prvSPI[SpiID].Sem);
  292. }
  293. #endif
  294. PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
  295. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  296. return;
  297. }
  298. if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
  299. {
  300. i = 0;
  301. if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
  302. {
  303. TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
  304. }
  305. while((i < TxLen))
  306. {
  307. SPI->DR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
  308. i++;
  309. }
  310. prvSPI[SpiID].TxBuf.Pos += i;
  311. }
  312. else
  313. {
  314. if ((prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos) >= SPIM_FIFO_RX_NUM)
  315. {
  316. SPI->RXFTLR = (SPIM_FIFO_RX_NUM - 1);
  317. }
  318. else
  319. {
  320. SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos - 1;
  321. }
  322. SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
  323. }
  324. }
  325. static int32_t SPI_DummyCB(void *pData, void *pParam)
  326. {
  327. return 0;
  328. }
  329. static void HSPI_MasterInit(uint8_t SpiID, uint8_t Mode, uint32_t Speed)
  330. {
  331. HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  332. uint32_t div = (SystemCoreClock / Speed) >> 1;
  333. uint32_t ctrl = (1 << 24) | (1 << 10) | (1 << 2) | (1 << 1);
  334. switch(Mode)
  335. {
  336. case SPI_MODE_0:
  337. break;
  338. case SPI_MODE_1:
  339. ctrl |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
  340. break;
  341. case SPI_MODE_2:
  342. ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
  343. break;
  344. case SPI_MODE_3:
  345. ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
  346. break;
  347. }
  348. SPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS) + 1;
  349. SPI->CR0 = ctrl;
  350. SPI->DCR = 30|(1 << 7);
  351. prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
  352. ISR_SetHandler(prvSPI[SpiID].IrqLine, HSPI_IrqHandle, (uint32_t)SpiID);
  353. #ifdef __BUILD_OS__
  354. ISR_SetPriority(prvSPI[SpiID].IrqLine, IRQ_MAX_PRIORITY + 1);
  355. #else
  356. ISR_SetPriority(prvSPI[SpiID].IrqLine, 3);
  357. #endif
  358. ISR_Clear(prvSPI[SpiID].IrqLine);
  359. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  360. }
  361. void SPI_MasterInit(uint8_t SpiID, uint8_t DataBit, uint8_t Mode, uint32_t Speed, CBFuncEx_t CB, void *pUserData)
  362. {
  363. SPI_TypeDef *SPI;
  364. uint32_t ctrl;
  365. uint32_t div;
  366. switch(SpiID)
  367. {
  368. case HSPI_ID0:
  369. HSPI_MasterInit(SpiID, Mode, Speed);
  370. break;
  371. case SPI_ID0:
  372. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  373. case SPI_ID1:
  374. case SPI_ID2:
  375. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  376. SPI->SSIENR = 0;
  377. SPI->SER = 0;
  378. SPI->IMR = 0;
  379. SPI->DMACR = 0;
  380. ctrl = DataBit - 1;
  381. switch(Mode)
  382. {
  383. case SPI_MODE_0:
  384. break;
  385. case SPI_MODE_1:
  386. ctrl |= SPI_CTRLR0_SCPH;
  387. break;
  388. case SPI_MODE_2:
  389. ctrl |= SPI_CTRLR0_SCPOL;
  390. break;
  391. case SPI_MODE_3:
  392. ctrl |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
  393. break;
  394. }
  395. div = (SystemCoreClock >> 2) / Speed;
  396. if (div % 2) div++;
  397. prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
  398. SPI->CTRLR0 = ctrl;
  399. SPI->BAUDR = div;
  400. SPI->TXFTLR = 0;
  401. SPI->RXFTLR = 0;
  402. SPI->DMATDLR = 7;
  403. SPI->DMARDLR = 0;
  404. ISR_SetHandler(prvSPI[SpiID].IrqLine, SPI_IrqHandle, (uint32_t)SpiID);
  405. #ifdef __BUILD_OS__
  406. ISR_SetPriority(prvSPI[SpiID].IrqLine, IRQ_LOWEST_PRIORITY - 2);
  407. #else
  408. ISR_SetPriority(prvSPI[SpiID].IrqLine, 5);
  409. #endif
  410. ISR_Clear(prvSPI[SpiID].IrqLine);
  411. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  412. SPI->SSIENR = 1;
  413. break;
  414. // case SPI_ID3:
  415. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  416. // break;
  417. default:
  418. return;
  419. }
  420. prvSPI[SpiID].DMATxStream = 0xff;
  421. prvSPI[SpiID].DMARxStream = 0xff;
  422. if (CB)
  423. {
  424. prvSPI[SpiID].Callback = CB;
  425. }
  426. else
  427. {
  428. prvSPI[SpiID].Callback = SPI_DummyCB;
  429. }
  430. prvSPI[SpiID].pParam = pUserData;
  431. #ifdef __BUILD_OS__
  432. if (!prvSPI[SpiID].Sem)
  433. {
  434. prvSPI[SpiID].Sem = OS_MutexCreate();
  435. }
  436. #endif
  437. }
  438. void SPI_SetTxOnlyFlag(uint8_t SpiID, uint8_t OnOff)
  439. {
  440. prvSPI[SpiID].IsOnlyTx = OnOff;
  441. }
  442. void SPI_SetCallbackFun(uint8_t SpiID, CBFuncEx_t CB, void *pUserData)
  443. {
  444. if (CB)
  445. {
  446. prvSPI[SpiID].Callback = CB;
  447. }
  448. else
  449. {
  450. prvSPI[SpiID].Callback = SPI_DummyCB;
  451. }
  452. prvSPI[SpiID].pParam = pUserData;
  453. }
  454. static void SPI_DMATransfer(uint8_t SpiID, uint8_t UseDMA)
  455. {
  456. uint32_t RxLevel;
  457. RxLevel = (prvSPI[SpiID].RxBuf.MaxLen > 4080)?4000:prvSPI[SpiID].RxBuf.MaxLen;
  458. prvSPI[SpiID].RxBuf.Pos += RxLevel;
  459. prvSPI[SpiID].TxBuf.Pos += RxLevel;
  460. DMA_StopStream(prvSPI[SpiID].DMATxStream);
  461. DMA_StopStream(prvSPI[SpiID].DMARxStream);
  462. if (prvSPI[SpiID].IsOnlyTx)
  463. {
  464. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  465. // DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, NULL, NULL, 0);
  466. }
  467. else
  468. {
  469. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, NULL, NULL, 0);
  470. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  471. }
  472. }
  473. static int32_t HSPI_Transfer(uint8_t SpiID, uint8_t UseDMA)
  474. {
  475. HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  476. uint32_t TxLen, i;
  477. PM_SetHardwareRunFlag(PM_HW_HSPI, 1);
  478. if (UseDMA)
  479. {
  480. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  481. SPI->CR0 |= (1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS);
  482. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  483. SPI->FCR &= ~(3 << 6);
  484. SPI_DMATransfer(SpiID, UseDMA);
  485. }
  486. else
  487. {
  488. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  489. // SPI->CR0 &= ~(1 << 10);
  490. SPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS));
  491. if (prvSPI[SpiID].TxBuf.MaxLen <= HSPIM_FIFO_TX_NUM)
  492. {
  493. TxLen = prvSPI[SpiID].TxBuf.MaxLen;
  494. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|((TxLen - 1) << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  495. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  496. }
  497. else
  498. {
  499. TxLen = HSPIM_FIFO_TX_NUM;
  500. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(63 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  501. SPI->CR0 |= (3 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  502. }
  503. SPI->FCR &= ~(3 << 6);
  504. for(i = 0; i < TxLen; i++)
  505. {
  506. SPI->WDR = prvSPI[SpiID].TxBuf.Data[i];
  507. }
  508. prvSPI[SpiID].TxBuf.Pos += TxLen;
  509. // SPI->CR0 |= (1 << 10);
  510. ISR_Clear(prvSPI[SpiID].IrqLine);
  511. ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
  512. return ERROR_NONE;
  513. }
  514. return ERROR_NONE;
  515. }
  516. int32_t SPI_Transfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len, uint8_t UseDMA)
  517. {
  518. uint32_t SR;
  519. SPI_TypeDef *SPI;
  520. if (prvSPI[SpiID].IsBusy)
  521. {
  522. return -ERROR_DEVICE_BUSY;
  523. }
  524. prvSPI[SpiID].IsBusy = 1;
  525. uint32_t RxLevel, i, TxLen;
  526. Buffer_StaticInit(&prvSPI[SpiID].TxBuf, TxData, Len);
  527. Buffer_StaticInit(&prvSPI[SpiID].RxBuf, RxData, Len);
  528. switch(SpiID)
  529. {
  530. case HSPI_ID0:
  531. ISR_Clear(prvSPI[SpiID].IrqLine);
  532. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  533. return HSPI_Transfer(SpiID, UseDMA);
  534. case SPI_ID0:
  535. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  536. case SPI_ID1:
  537. case SPI_ID2:
  538. break;
  539. // case SPI_ID3:
  540. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  541. // break;
  542. default:
  543. return -ERROR_ID_INVALID;
  544. }
  545. PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 1);
  546. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  547. SPI->SER = 0;
  548. if (UseDMA)
  549. {
  550. SR = SPI->ICR;
  551. SPI->IMR = 0;
  552. SPI->DMACR = SPI_DMACR_RDMAE|SPI_DMACR_TDMAE;
  553. ISR_Clear(prvSPI[SpiID].IrqLine);
  554. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  555. SPI->SER = 1;
  556. SPI_DMATransfer(SpiID, 1);
  557. }
  558. else
  559. {
  560. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  561. if (prvSPI[SpiID].RxBuf.MaxLen <= SPIM_FIFO_RX_NUM)
  562. {
  563. SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - 1;
  564. TxLen = prvSPI[SpiID].RxBuf.MaxLen;
  565. SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
  566. }
  567. else
  568. {
  569. SPI->IMR = SPI_IMR_TXEIM;
  570. SPI->RXFTLR = SPIM_FIFO_RX_LEVEL;
  571. SPI->TXFTLR = SPIM_FIFO_TX_LEVEL;
  572. TxLen = SPIM_FIFO_TX_NUM;
  573. }
  574. for(i = 0; i < TxLen; i++)
  575. {
  576. SPI->DR = prvSPI[SpiID].TxBuf.Data[i];
  577. }
  578. prvSPI[SpiID].TxBuf.Pos += TxLen;
  579. ISR_Clear(prvSPI[SpiID].IrqLine);
  580. ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
  581. }
  582. SPI->SER = 1;
  583. return ERROR_NONE;
  584. }
  585. static int32_t prvSPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
  586. {
  587. volatile uint32_t DummyData;
  588. uint32_t TxLen, RxLen, i, To;
  589. HSPIM_TypeDef *HSPI;
  590. SPI_TypeDef *SPI;
  591. prvSPI[SpiID].IsBusy = 1;
  592. switch(SpiID)
  593. {
  594. case HSPI_ID0:
  595. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  596. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  597. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  598. HSPI->FCR &= ~(3 << 6);
  599. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  600. if (Len <= HSPIM_FIFO_TX_NUM)
  601. {
  602. TxLen = Len;
  603. }
  604. else
  605. {
  606. TxLen = HSPIM_FIFO_TX_NUM;
  607. }
  608. for(i = 0; i < TxLen; i++)
  609. {
  610. HSPI->WDR = TxData[i];
  611. }
  612. if (RxData)
  613. {
  614. for(RxLen = 0; RxLen < Len; RxLen++)
  615. {
  616. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  617. {
  618. ;
  619. }
  620. RxData[RxLen] = HSPI->RDR;
  621. if (TxLen < Len)
  622. {
  623. HSPI->WDR = TxData[TxLen];
  624. TxLen++;
  625. }
  626. }
  627. }
  628. else
  629. {
  630. while(TxLen < Len)
  631. {
  632. while ((HSPI->FSR & 0x7f) > 16)
  633. {
  634. ;
  635. }
  636. HSPI->WDR = TxData[TxLen];
  637. TxLen++;
  638. }
  639. while ((HSPI->FSR & 0x7f))
  640. {
  641. ;
  642. }
  643. // for(RxLen = 0; RxLen < Len; RxLen++)
  644. // {
  645. // while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  646. // {
  647. // ;
  648. // }
  649. // DummyData = HSPI->RDR;
  650. // if (TxLen < Len)
  651. // {
  652. // HSPI->WDR = TxData[TxLen];
  653. // TxLen++;
  654. // }
  655. // }
  656. }
  657. break;
  658. case SPI_ID0:
  659. case SPI_ID1:
  660. case SPI_ID2:
  661. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  662. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  663. SPI->SER = 0;
  664. if (Len <= SPIM_FIFO_TX_NUM)
  665. {
  666. TxLen = Len;
  667. }
  668. else
  669. {
  670. TxLen = SPIM_FIFO_TX_NUM;
  671. }
  672. for(i = 0; i < TxLen; i++)
  673. {
  674. SPI->DR = TxData[i];
  675. }
  676. SPI->SER = 1;
  677. if (RxData)
  678. {
  679. for(RxLen = 0; RxLen < Len; RxLen++)
  680. {
  681. while (!SPI->RXFLR)
  682. {
  683. ;
  684. }
  685. RxData[RxLen] = SPI->DR;
  686. if (TxLen < Len)
  687. {
  688. SPI->DR = TxData[TxLen];
  689. TxLen++;
  690. }
  691. }
  692. }
  693. else
  694. {
  695. for(RxLen = 0; RxLen < Len; RxLen++)
  696. {
  697. while (!SPI->RXFLR)
  698. {
  699. ;
  700. }
  701. DummyData = SPI->DR;
  702. if (TxLen < Len)
  703. {
  704. SPI->DR = TxData[TxLen];
  705. TxLen++;
  706. }
  707. }
  708. }
  709. SPI->SER = 0;
  710. break;
  711. }
  712. prvSPI[SpiID].IsBusy = 0;
  713. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  714. return 0;
  715. }
  716. int32_t SPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
  717. {
  718. #ifdef __BUILD_OS__
  719. if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) || OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= (Len * 100000)))
  720. {
  721. prvSPI[SpiID].IsBlockMode = 0;
  722. #endif
  723. return prvSPI_BlockTransfer(SpiID, TxData, RxData, Len);
  724. #ifdef __BUILD_OS__
  725. }
  726. int32_t Result;
  727. uint32_t Time = (Len * 1000) / (prvSPI[SpiID].Speed >> 3);
  728. prvSPI[SpiID].IsBlockMode = 1;
  729. if (TxData)
  730. {
  731. Result = SPI_Transfer(SpiID, TxData, RxData, Len, 1);
  732. }
  733. else
  734. {
  735. Result = SPI_Transfer(SpiID, RxData, RxData, Len, 1);
  736. }
  737. if (Result)
  738. {
  739. prvSPI[SpiID].IsBlockMode = 0;
  740. DBG("!");
  741. return Result;
  742. }
  743. if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 10))
  744. {
  745. DBG("!!!");
  746. SPI_TransferStop(SpiID);
  747. prvSPI[SpiID].IsBlockMode = 0;
  748. return -1;
  749. }
  750. prvSPI[SpiID].IsBlockMode = 0;
  751. return 0;
  752. #endif
  753. }
  754. static int32_t prvSPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
  755. {
  756. volatile uint32_t DummyData;
  757. uint32_t TxLen, RxLen, i;
  758. HSPIM_TypeDef *HSPI;
  759. SPI_TypeDef *SPI;
  760. prvSPI[SpiID].IsBusy = 1;
  761. switch(SpiID)
  762. {
  763. case HSPI_ID0:
  764. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  765. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  766. HSPI->FCR &= ~(3 << 6);
  767. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  768. if (WLen <= HSPIM_FIFO_TX_NUM)
  769. {
  770. TxLen = WLen;
  771. }
  772. else
  773. {
  774. TxLen = HSPIM_FIFO_TX_NUM;
  775. }
  776. for(i = 0; i < TxLen; i++)
  777. {
  778. HSPI->WDR = TxData[i];
  779. }
  780. for(RxLen = 0; RxLen < WLen; RxLen++)
  781. {
  782. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  783. {
  784. ;
  785. }
  786. DummyData = HSPI->RDR;
  787. if (TxLen < WLen)
  788. {
  789. HSPI->WDR = TxData[TxLen];
  790. TxLen++;
  791. }
  792. }
  793. if (RLen <= HSPIM_FIFO_TX_NUM)
  794. {
  795. TxLen = RLen;
  796. }
  797. else
  798. {
  799. TxLen = HSPIM_FIFO_TX_NUM;
  800. }
  801. for(i = 0; i < TxLen; i++)
  802. {
  803. HSPI->WDR = TxData[i];
  804. }
  805. for(RxLen = 0; RxLen < RLen; RxLen++)
  806. {
  807. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  808. {
  809. ;
  810. }
  811. RxData[RxLen] = HSPI->RDR;
  812. if (TxLen < RLen)
  813. {
  814. HSPI->WDR = 0xff;
  815. TxLen++;
  816. }
  817. }
  818. break;
  819. case SPI_ID0:
  820. case SPI_ID1:
  821. case SPI_ID2:
  822. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  823. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  824. SPI->SER = 0;
  825. if (WLen <= SPIM_FIFO_TX_NUM)
  826. {
  827. TxLen = WLen;
  828. }
  829. else
  830. {
  831. TxLen = SPIM_FIFO_TX_NUM;
  832. }
  833. for(i = 0; i < TxLen; i++)
  834. {
  835. SPI->DR = TxData[i];
  836. }
  837. SPI->SER = 1;
  838. for(RxLen = 0; RxLen < WLen; RxLen++)
  839. {
  840. while (!SPI->RXFLR)
  841. {
  842. ;
  843. }
  844. DummyData = SPI->DR;
  845. if (TxLen < WLen)
  846. {
  847. SPI->DR = TxData[TxLen];
  848. TxLen++;
  849. }
  850. }
  851. if (RLen <= SPIM_FIFO_TX_NUM)
  852. {
  853. TxLen = RLen;
  854. }
  855. else
  856. {
  857. TxLen = SPIM_FIFO_TX_NUM;
  858. }
  859. for(i = 0; i < TxLen; i++)
  860. {
  861. SPI->DR = TxData[i];
  862. }
  863. for(RxLen = 0; RxLen < RLen; RxLen++)
  864. {
  865. while (!SPI->RXFLR)
  866. {
  867. ;
  868. }
  869. RxData[RxLen] = SPI->DR;
  870. if (TxLen < RLen)
  871. {
  872. SPI->DR = 0xff;
  873. TxLen++;
  874. }
  875. }
  876. SPI->SER = 0;
  877. break;
  878. }
  879. prvSPI[SpiID].IsBusy = 0;
  880. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  881. return 0;
  882. }
  883. int32_t SPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
  884. {
  885. #ifdef __BUILD_OS__
  886. if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) || OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= ((WLen + RLen) * 100000)))
  887. {
  888. prvSPI[SpiID].IsBlockMode = 0;
  889. #endif
  890. return prvSPI_FlashBlockTransfer(SpiID, TxData, WLen, RxData, RLen);
  891. #ifdef __BUILD_OS__
  892. }
  893. int32_t Result;
  894. uint32_t Time = ((WLen + RLen) * 1000) / (prvSPI[SpiID].Speed >> 3);
  895. uint8_t *Temp = malloc(WLen + RLen);
  896. memcpy(Temp, TxData, WLen);
  897. prvSPI[SpiID].IsBlockMode = 1;
  898. if (TxData)
  899. {
  900. Result = SPI_Transfer(SpiID, Temp, Temp, WLen + RLen, 1);
  901. }
  902. else
  903. {
  904. Result = SPI_Transfer(SpiID, Temp, Temp, WLen + RLen, 1);
  905. }
  906. if (Result)
  907. {
  908. prvSPI[SpiID].IsBlockMode = 0;
  909. free(Temp);
  910. return Result;
  911. }
  912. if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 10))
  913. {
  914. free(Temp);
  915. DBG("!!!");
  916. SPI_TransferStop(SpiID);
  917. prvSPI[SpiID].IsBlockMode = 0;
  918. return -1;
  919. }
  920. memcpy(RxData, Temp + WLen, RLen);
  921. prvSPI[SpiID].IsBlockMode = 0;
  922. free(Temp);
  923. return 0;
  924. #endif
  925. }
  926. void SPI_DMATxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
  927. {
  928. SPI_TypeDef *SPI;
  929. HSPIM_TypeDef *HSPI;
  930. DMA_InitTypeDef DMA_InitStruct;
  931. DMA_BaseConfig(&DMA_InitStruct);
  932. DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMATxChannel;
  933. DMA_InitStruct.DMA_Priority = DMA_Priority_3;
  934. prvSPI[SpiID].DMATxStream = Stream;
  935. switch(SpiID)
  936. {
  937. case HSPI_ID0:
  938. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  939. if (prvSPI[SpiID].IsOnlyTx)
  940. {
  941. DMA_InitStruct.DMA_Priority = DMA_Priority_0;
  942. }
  943. DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_32;
  944. DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_32;
  945. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->WDR;
  946. break;
  947. case SPI_ID0:
  948. case SPI_ID1:
  949. case SPI_ID2:
  950. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  951. DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_8;
  952. DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_8;
  953. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
  954. break;
  955. // case SPI_ID3:
  956. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  957. // break;
  958. default:
  959. return;
  960. }
  961. DMA_ConfigStream(Stream, &DMA_InitStruct);
  962. }
  963. void SPI_DMARxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
  964. {
  965. SPI_TypeDef *SPI;
  966. HSPIM_TypeDef *HSPI;
  967. DMA_InitTypeDef DMA_InitStruct;
  968. DMA_BaseConfig(&DMA_InitStruct);
  969. DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMARxChannel;
  970. DMA_InitStruct.DMA_Priority = DMA_Priority_2;
  971. prvSPI[SpiID].DMARxStream = Stream;
  972. switch(SpiID)
  973. {
  974. case HSPI_ID0:
  975. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  976. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->RDR;
  977. break;
  978. case SPI_ID0:
  979. case SPI_ID1:
  980. case SPI_ID2:
  981. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  982. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
  983. break;
  984. // case SPI_ID3:
  985. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  986. // break;
  987. default:
  988. return;
  989. }
  990. DMA_ConfigStream(Stream, &DMA_InitStruct);
  991. }
  992. void SPI_TransferStop(uint8_t SpiID)
  993. {
  994. uint16_t Data;
  995. ISR_Clear(prvSPI[SpiID].IrqLine);
  996. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  997. SPI_TypeDef *SPI;
  998. HSPIM_TypeDef *HSPI;
  999. uint32_t TxLen, i;
  1000. DMA_StopStream(prvSPI[SpiID].DMATxStream);
  1001. DMA_StopStream(prvSPI[SpiID].DMARxStream);
  1002. switch(SpiID)
  1003. {
  1004. case HSPI_ID0:
  1005. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  1006. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  1007. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  1008. HSPI->FCR &= ~(3 << 6);
  1009. PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
  1010. break;
  1011. case SPI_ID0:
  1012. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  1013. case SPI_ID1:
  1014. case SPI_ID2:
  1015. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  1016. while(SPI->TXFLR){;}
  1017. while(SPI->RXFLR){Data = SPI->DR;}
  1018. SPI->SER = 0;
  1019. break;
  1020. // case SPI_ID3:
  1021. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  1022. // break;
  1023. default:
  1024. return ;
  1025. }
  1026. PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
  1027. prvSPI[SpiID].IsBusy = 0;
  1028. }
  1029. uint8_t SPI_IsTransferBusy(uint8_t SpiID)
  1030. {
  1031. return prvSPI[SpiID].IsBusy;
  1032. }
  1033. void SPI_SetNewConfig(uint8_t SpiID, uint32_t Speed, uint8_t NewMode)
  1034. {
  1035. HSPIM_TypeDef *HSPI;
  1036. SPI_TypeDef *SPI;
  1037. uint32_t div;
  1038. if (prvSPI[SpiID].IsBusy) return;
  1039. switch(SpiID)
  1040. {
  1041. case HSPI_ID0:
  1042. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  1043. div = (SystemCoreClock / Speed) >> 1;
  1044. HSPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS) + 1;
  1045. prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
  1046. HSPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS));
  1047. switch(NewMode)
  1048. {
  1049. case SPI_MODE_0:
  1050. break;
  1051. case SPI_MODE_1:
  1052. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
  1053. break;
  1054. case SPI_MODE_2:
  1055. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
  1056. break;
  1057. case SPI_MODE_3:
  1058. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
  1059. break;
  1060. }
  1061. break;
  1062. case SPI_ID0:
  1063. case SPI_ID1:
  1064. case SPI_ID2:
  1065. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  1066. SPI->SSIENR = 0;
  1067. div = (SystemCoreClock >> 2) / Speed;
  1068. if (div % 2) div++;
  1069. prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
  1070. SPI->BAUDR = div;
  1071. SPI->CTRLR0 &= ~(SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH);
  1072. switch(NewMode)
  1073. {
  1074. case SPI_MODE_0:
  1075. break;
  1076. case SPI_MODE_1:
  1077. SPI->CTRLR0 |= SPI_CTRLR0_SCPH;
  1078. break;
  1079. case SPI_MODE_2:
  1080. SPI->CTRLR0 |= SPI_CTRLR0_SCPOL;
  1081. break;
  1082. case SPI_MODE_3:
  1083. SPI->CTRLR0 |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
  1084. break;
  1085. }
  1086. SPI->SSIENR = 1;
  1087. break;
  1088. }
  1089. }