core_spi.c 27 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. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  166. return;
  167. }
  168. if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
  169. {
  170. i = 0;
  171. TxLen = (HSPIM_FIFO_TX_NUM - (SPI->FSR & 0x0000003f));
  172. if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
  173. {
  174. TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
  175. }
  176. while((i < TxLen))
  177. {
  178. SPI->WDR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
  179. i++;
  180. }
  181. prvSPI[SpiID].TxBuf.Pos += TxLen;
  182. if (prvSPI[SpiID].TxBuf.Pos >= prvSPI[SpiID].TxBuf.MaxLen)
  183. {
  184. SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
  185. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  186. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  187. }
  188. }
  189. else
  190. {
  191. SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
  192. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  193. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  194. }
  195. }
  196. static int32_t SPI_DMADoneCB(void *pData, void *pParam)
  197. {
  198. uint32_t SpiID = (uint32_t)pData;
  199. uint32_t RxLevel;
  200. if (prvSPI[SpiID].RxBuf.MaxLen > prvSPI[SpiID].RxBuf.Pos)
  201. {
  202. RxLevel = ((prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos) > 4080)?4000:(prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos);
  203. DMA_ClearStreamFlag(prvSPI[SpiID].DMATxStream);
  204. DMA_ClearStreamFlag(prvSPI[SpiID].DMARxStream);
  205. if (prvSPI[SpiID].IsOnlyTx)
  206. {
  207. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  208. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, NULL, NULL, 0);
  209. }
  210. else
  211. {
  212. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, NULL, NULL, 0);
  213. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  214. }
  215. prvSPI[SpiID].RxBuf.Pos += RxLevel;
  216. prvSPI[SpiID].TxBuf.Pos += RxLevel;
  217. }
  218. else
  219. {
  220. prvSPI[SpiID].IsBusy = 0;
  221. if ((prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos) || (prvSPI[SpiID].RxBuf.Pos != prvSPI[SpiID].RxBuf.MaxLen))
  222. {
  223. DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
  224. }
  225. #ifdef __BUILD_OS__
  226. if (prvSPI[SpiID].IsBlockMode)
  227. {
  228. OS_MutexRelease(prvSPI[SpiID].Sem);
  229. }
  230. #endif
  231. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  232. }
  233. }
  234. static void SPI_IrqHandle(int32_t IrqLine, void *pData)
  235. {
  236. uint32_t SpiID = (uint32_t)pData;
  237. volatile uint32_t DummyData;
  238. uint32_t RxLevel, SR, i, TxLen;
  239. SPI_TypeDef *SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  240. if (!prvSPI[SpiID].IsBusy)
  241. {
  242. SR = SPI->ICR;
  243. SPI->IMR = 0;
  244. SPI->SER = 0;
  245. ISR_Clear(prvSPI[SpiID].IrqLine);
  246. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  247. return;
  248. }
  249. TxLen = SPIM_FIFO_TX_NUM - SPI->TXFLR;
  250. SR = SPI->ICR;
  251. if (prvSPI[SpiID].RxBuf.Data)
  252. {
  253. while(SPI->RXFLR)
  254. {
  255. prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos] = SPI->DR;
  256. prvSPI[SpiID].RxBuf.Pos++;
  257. }
  258. }
  259. else
  260. {
  261. while(SPI->RXFLR)
  262. {
  263. DummyData = SPI->DR;
  264. prvSPI[SpiID].RxBuf.Pos++;
  265. }
  266. }
  267. if (prvSPI[SpiID].RxBuf.Pos >= prvSPI[SpiID].RxBuf.MaxLen)
  268. {
  269. SR = SPI->ICR;
  270. SPI->IMR = 0;
  271. SPI->SER = 0;
  272. prvSPI[SpiID].IsBusy = 0;
  273. ISR_Clear(prvSPI[SpiID].IrqLine);
  274. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  275. if (prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos)
  276. {
  277. DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
  278. }
  279. #ifdef __BUILD_OS__
  280. if (prvSPI[SpiID].IsBlockMode)
  281. {
  282. OS_MutexRelease(prvSPI[SpiID].Sem);
  283. }
  284. #endif
  285. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  286. return;
  287. }
  288. if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
  289. {
  290. i = 0;
  291. if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
  292. {
  293. TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
  294. }
  295. while((i < TxLen))
  296. {
  297. SPI->DR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
  298. i++;
  299. }
  300. prvSPI[SpiID].TxBuf.Pos += i;
  301. }
  302. else
  303. {
  304. if ((prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos) >= SPIM_FIFO_RX_NUM)
  305. {
  306. SPI->RXFTLR = (SPIM_FIFO_RX_NUM - 1);
  307. }
  308. else
  309. {
  310. SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos - 1;
  311. }
  312. SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
  313. }
  314. }
  315. static int32_t SPI_DummyCB(void *pData, void *pParam)
  316. {
  317. DBG("!");
  318. return 0;
  319. }
  320. static void HSPI_MasterInit(uint8_t SpiID, uint8_t Mode, uint32_t Speed)
  321. {
  322. HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  323. uint32_t div = (SystemCoreClock / Speed) >> 1;
  324. uint32_t ctrl = (1 << 24) | (1 << 10) | (1 << 2) | (1 << 1);
  325. switch(Mode)
  326. {
  327. case SPI_MODE_0:
  328. break;
  329. case SPI_MODE_1:
  330. ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
  331. break;
  332. case SPI_MODE_2:
  333. ctrl |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
  334. break;
  335. case SPI_MODE_3:
  336. ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
  337. break;
  338. }
  339. SPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS) + 1;
  340. SPI->CR0 = ctrl;
  341. SPI->DCR = 30|(1 << 7);
  342. prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
  343. ISR_SetHandler(prvSPI[SpiID].IrqLine, HSPI_IrqHandle, (uint32_t)SpiID);
  344. #ifdef __BUILD_OS__
  345. ISR_SetPriority(prvSPI[SpiID].IrqLine, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY + 1);
  346. #else
  347. ISR_SetPriority(prvSPI[SpiID].IrqLine, 3);
  348. #endif
  349. ISR_Clear(prvSPI[SpiID].IrqLine);
  350. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  351. }
  352. void SPI_MasterInit(uint8_t SpiID, uint8_t DataBit, uint8_t Mode, uint32_t Speed, CBFuncEx_t CB, void *pUserData)
  353. {
  354. SPI_TypeDef *SPI;
  355. uint32_t ctrl;
  356. uint32_t div;
  357. switch(SpiID)
  358. {
  359. case HSPI_ID0:
  360. HSPI_MasterInit(SpiID, Mode, Speed);
  361. break;
  362. case SPI_ID0:
  363. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  364. case SPI_ID1:
  365. case SPI_ID2:
  366. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  367. SPI->SSIENR = 0;
  368. SPI->SER = 0;
  369. SPI->IMR = 0;
  370. SPI->DMACR = 0;
  371. ctrl = DataBit - 1;
  372. switch(Mode)
  373. {
  374. case SPI_MODE_0:
  375. break;
  376. case SPI_MODE_1:
  377. ctrl |= SPI_CTRLR0_SCPOL;
  378. break;
  379. case SPI_MODE_2:
  380. ctrl |= SPI_CTRLR0_SCPH;
  381. break;
  382. case SPI_MODE_3:
  383. ctrl |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
  384. break;
  385. }
  386. div = (SystemCoreClock >> 2) / Speed;
  387. if (div % 2) div++;
  388. prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
  389. SPI->CTRLR0 = ctrl;
  390. SPI->BAUDR = div;
  391. SPI->TXFTLR = 0;
  392. SPI->RXFTLR = 0;
  393. SPI->DMATDLR = 7;
  394. SPI->DMARDLR = 0;
  395. ISR_SetHandler(prvSPI[SpiID].IrqLine, SPI_IrqHandle, (uint32_t)SpiID);
  396. #ifdef __BUILD_OS__
  397. ISR_SetPriority(prvSPI[SpiID].IrqLine, configLIBRARY_LOWEST_INTERRUPT_PRIORITY - 2);
  398. #else
  399. ISR_SetPriority(prvSPI[SpiID].IrqLine, 5);
  400. #endif
  401. ISR_Clear(prvSPI[SpiID].IrqLine);
  402. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  403. SPI->SSIENR = 1;
  404. break;
  405. // case SPI_ID3:
  406. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  407. // break;
  408. default:
  409. return;
  410. }
  411. prvSPI[SpiID].DMATxStream = 0xff;
  412. prvSPI[SpiID].DMARxStream = 0xff;
  413. if (CB)
  414. {
  415. prvSPI[SpiID].Callback = CB;
  416. }
  417. else
  418. {
  419. prvSPI[SpiID].Callback = SPI_DummyCB;
  420. }
  421. prvSPI[SpiID].pParam = pUserData;
  422. #ifdef __BUILD_OS__
  423. if (!prvSPI[SpiID].Sem)
  424. {
  425. prvSPI[SpiID].Sem = OS_MutexCreate();
  426. }
  427. #endif
  428. }
  429. void SPI_SetTxOnlyFlag(uint8_t SpiID, uint8_t OnOff)
  430. {
  431. prvSPI[SpiID].IsOnlyTx = OnOff;
  432. }
  433. void SPI_SetCallbackFun(uint8_t SpiID, CBFuncEx_t CB, void *pUserData)
  434. {
  435. if (CB)
  436. {
  437. prvSPI[SpiID].Callback = CB;
  438. }
  439. else
  440. {
  441. prvSPI[SpiID].Callback = SPI_DummyCB;
  442. }
  443. prvSPI[SpiID].pParam = pUserData;
  444. }
  445. static void SPI_DMATransfer(uint8_t SpiID, uint8_t UseDMA)
  446. {
  447. uint32_t RxLevel;
  448. RxLevel = (prvSPI[SpiID].RxBuf.MaxLen > 4080)?4000:prvSPI[SpiID].RxBuf.MaxLen;
  449. prvSPI[SpiID].RxBuf.Pos += RxLevel;
  450. prvSPI[SpiID].TxBuf.Pos += RxLevel;
  451. DMA_StopStream(prvSPI[SpiID].DMATxStream);
  452. DMA_StopStream(prvSPI[SpiID].DMARxStream);
  453. if (prvSPI[SpiID].IsOnlyTx)
  454. {
  455. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  456. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, NULL, NULL, 0);
  457. }
  458. else
  459. {
  460. DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, NULL, NULL, 0);
  461. DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
  462. }
  463. }
  464. static int32_t HSPI_Transfer(uint8_t SpiID, uint8_t UseDMA)
  465. {
  466. HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  467. uint32_t TxLen, i;
  468. if (UseDMA)
  469. {
  470. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  471. SPI->CR0 |= (1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS);
  472. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  473. SPI->FCR &= ~(3 << 6);
  474. SPI_DMATransfer(SpiID, UseDMA);
  475. }
  476. else
  477. {
  478. SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  479. // SPI->CR0 &= ~(1 << 10);
  480. SPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS));
  481. if (prvSPI[SpiID].TxBuf.MaxLen <= HSPIM_FIFO_TX_NUM)
  482. {
  483. TxLen = prvSPI[SpiID].TxBuf.MaxLen;
  484. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|((TxLen - 1) << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  485. SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  486. }
  487. else
  488. {
  489. TxLen = HSPIM_FIFO_TX_NUM;
  490. SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(63 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  491. SPI->CR0 |= (3 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  492. }
  493. SPI->FCR &= ~(3 << 6);
  494. for(i = 0; i < TxLen; i++)
  495. {
  496. SPI->WDR = prvSPI[SpiID].TxBuf.Data[i];
  497. }
  498. prvSPI[SpiID].TxBuf.Pos += TxLen;
  499. // SPI->CR0 |= (1 << 10);
  500. ISR_Clear(prvSPI[SpiID].IrqLine);
  501. ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
  502. return ERROR_NONE;
  503. }
  504. return ERROR_NONE;
  505. }
  506. int32_t SPI_Transfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len, uint8_t UseDMA)
  507. {
  508. uint32_t SR;
  509. SPI_TypeDef *SPI;
  510. if (prvSPI[SpiID].IsBusy)
  511. {
  512. return -ERROR_DEVICE_BUSY;
  513. }
  514. prvSPI[SpiID].IsBusy = 1;
  515. //
  516. uint32_t RxLevel, i, TxLen;
  517. Buffer_StaticInit(&prvSPI[SpiID].TxBuf, TxData, Len);
  518. Buffer_StaticInit(&prvSPI[SpiID].RxBuf, RxData, Len);
  519. switch(SpiID)
  520. {
  521. case HSPI_ID0:
  522. ISR_Clear(prvSPI[SpiID].IrqLine);
  523. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  524. return HSPI_Transfer(SpiID, UseDMA);
  525. case SPI_ID0:
  526. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  527. case SPI_ID1:
  528. case SPI_ID2:
  529. break;
  530. // case SPI_ID3:
  531. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  532. // break;
  533. default:
  534. return -ERROR_ID_INVALID;
  535. }
  536. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  537. SPI->SER = 0;
  538. if (UseDMA)
  539. {
  540. SR = SPI->ICR;
  541. SPI->IMR = 0;
  542. SPI->DMACR = SPI_DMACR_RDMAE|SPI_DMACR_TDMAE;
  543. ISR_Clear(prvSPI[SpiID].IrqLine);
  544. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  545. SPI->SER = 1;
  546. SPI_DMATransfer(SpiID, 1);
  547. }
  548. else
  549. {
  550. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  551. if (prvSPI[SpiID].RxBuf.MaxLen <= SPIM_FIFO_RX_NUM)
  552. {
  553. SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - 1;
  554. TxLen = prvSPI[SpiID].RxBuf.MaxLen;
  555. SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
  556. }
  557. else
  558. {
  559. SPI->IMR = SPI_IMR_TXEIM;
  560. SPI->RXFTLR = SPIM_FIFO_RX_LEVEL;
  561. SPI->TXFTLR = SPIM_FIFO_TX_LEVEL;
  562. TxLen = SPIM_FIFO_TX_NUM;
  563. }
  564. for(i = 0; i < TxLen; i++)
  565. {
  566. SPI->DR = prvSPI[SpiID].TxBuf.Data[i];
  567. }
  568. prvSPI[SpiID].TxBuf.Pos += TxLen;
  569. ISR_Clear(prvSPI[SpiID].IrqLine);
  570. ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
  571. }
  572. SPI->SER = 1;
  573. return ERROR_NONE;
  574. }
  575. static int32_t prvSPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
  576. {
  577. volatile uint32_t DummyData;
  578. uint32_t TxLen, RxLen, i, To;
  579. HSPIM_TypeDef *HSPI;
  580. SPI_TypeDef *SPI;
  581. prvSPI[SpiID].IsBusy = 1;
  582. switch(SpiID)
  583. {
  584. case HSPI_ID0:
  585. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  586. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  587. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  588. HSPI->FCR &= ~(3 << 6);
  589. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  590. if (Len <= HSPIM_FIFO_TX_NUM)
  591. {
  592. TxLen = Len;
  593. }
  594. else
  595. {
  596. TxLen = HSPIM_FIFO_TX_NUM;
  597. }
  598. for(i = 0; i < TxLen; i++)
  599. {
  600. HSPI->WDR = TxData[i];
  601. }
  602. if (RxData)
  603. {
  604. for(RxLen = 0; RxLen < Len; RxLen++)
  605. {
  606. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  607. {
  608. ;
  609. }
  610. RxData[RxLen] = HSPI->RDR;
  611. if (TxLen < Len)
  612. {
  613. HSPI->WDR = TxData[TxLen];
  614. TxLen++;
  615. }
  616. }
  617. }
  618. else
  619. {
  620. while(TxLen < Len)
  621. {
  622. while ((HSPI->FSR & 0x7f) > 16)
  623. {
  624. ;
  625. }
  626. HSPI->WDR = TxData[TxLen];
  627. TxLen++;
  628. }
  629. while ((HSPI->FSR & 0x7f))
  630. {
  631. ;
  632. }
  633. // for(RxLen = 0; RxLen < Len; RxLen++)
  634. // {
  635. // while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  636. // {
  637. // ;
  638. // }
  639. // DummyData = HSPI->RDR;
  640. // if (TxLen < Len)
  641. // {
  642. // HSPI->WDR = TxData[TxLen];
  643. // TxLen++;
  644. // }
  645. // }
  646. }
  647. break;
  648. case SPI_ID0:
  649. case SPI_ID1:
  650. case SPI_ID2:
  651. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  652. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  653. SPI->SER = 0;
  654. if (Len <= SPIM_FIFO_TX_NUM)
  655. {
  656. TxLen = Len;
  657. }
  658. else
  659. {
  660. TxLen = SPIM_FIFO_TX_NUM;
  661. }
  662. for(i = 0; i < TxLen; i++)
  663. {
  664. SPI->DR = TxData[i];
  665. }
  666. SPI->SER = 1;
  667. if (RxData)
  668. {
  669. for(RxLen = 0; RxLen < Len; RxLen++)
  670. {
  671. while (!SPI->RXFLR)
  672. {
  673. ;
  674. }
  675. RxData[RxLen] = SPI->DR;
  676. if (TxLen < Len)
  677. {
  678. SPI->DR = TxData[TxLen];
  679. TxLen++;
  680. }
  681. }
  682. }
  683. else
  684. {
  685. for(RxLen = 0; RxLen < Len; RxLen++)
  686. {
  687. while (!SPI->RXFLR)
  688. {
  689. ;
  690. }
  691. DummyData = SPI->DR;
  692. if (TxLen < Len)
  693. {
  694. SPI->DR = TxData[TxLen];
  695. TxLen++;
  696. }
  697. }
  698. }
  699. SPI->SER = 0;
  700. break;
  701. }
  702. prvSPI[SpiID].IsBusy = 0;
  703. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  704. return 0;
  705. }
  706. int32_t SPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
  707. {
  708. #ifdef __BUILD_OS__
  709. if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) || OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= (Len * 100000)))
  710. {
  711. prvSPI[SpiID].IsBlockMode = 0;
  712. #endif
  713. return prvSPI_BlockTransfer(SpiID, TxData, RxData, Len);
  714. #ifdef __BUILD_OS__
  715. }
  716. int32_t Result;
  717. uint32_t Time = (Len * 1000) / (prvSPI[SpiID].Speed >> 3);
  718. prvSPI[SpiID].IsBlockMode = 1;
  719. if (TxData)
  720. {
  721. Result = SPI_Transfer(SpiID, TxData, RxData, Len, 1);
  722. }
  723. else
  724. {
  725. Result = SPI_Transfer(SpiID, RxData, RxData, Len, 1);
  726. }
  727. if (Result)
  728. {
  729. prvSPI[SpiID].IsBlockMode = 0;
  730. DBG("!");
  731. return Result;
  732. }
  733. if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 10))
  734. {
  735. DBG("!!!");
  736. DMA_StopStream(prvSPI[SpiID].DMATxStream);
  737. DMA_StopStream(prvSPI[SpiID].DMARxStream);
  738. SPI_TransferStop(SpiID);
  739. prvSPI[SpiID].IsBlockMode = 0;
  740. return -1;
  741. }
  742. prvSPI[SpiID].IsBlockMode = 0;
  743. return 0;
  744. #endif
  745. }
  746. static int32_t prvSPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
  747. {
  748. volatile uint32_t DummyData;
  749. uint32_t TxLen, RxLen, i;
  750. HSPIM_TypeDef *HSPI;
  751. SPI_TypeDef *SPI;
  752. prvSPI[SpiID].IsBusy = 1;
  753. switch(SpiID)
  754. {
  755. case HSPI_ID0:
  756. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  757. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  758. HSPI->FCR &= ~(3 << 6);
  759. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  760. if (WLen <= HSPIM_FIFO_TX_NUM)
  761. {
  762. TxLen = WLen;
  763. }
  764. else
  765. {
  766. TxLen = HSPIM_FIFO_TX_NUM;
  767. }
  768. for(i = 0; i < TxLen; i++)
  769. {
  770. HSPI->WDR = TxData[i];
  771. }
  772. for(RxLen = 0; RxLen < WLen; RxLen++)
  773. {
  774. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  775. {
  776. ;
  777. }
  778. DummyData = HSPI->RDR;
  779. if (TxLen < WLen)
  780. {
  781. HSPI->WDR = TxData[TxLen];
  782. TxLen++;
  783. }
  784. }
  785. if (RLen <= HSPIM_FIFO_TX_NUM)
  786. {
  787. TxLen = RLen;
  788. }
  789. else
  790. {
  791. TxLen = HSPIM_FIFO_TX_NUM;
  792. }
  793. for(i = 0; i < TxLen; i++)
  794. {
  795. HSPI->WDR = TxData[i];
  796. }
  797. for(RxLen = 0; RxLen < RLen; RxLen++)
  798. {
  799. while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
  800. {
  801. ;
  802. }
  803. RxData[RxLen] = HSPI->RDR;
  804. if (TxLen < RLen)
  805. {
  806. HSPI->WDR = 0xff;
  807. TxLen++;
  808. }
  809. }
  810. break;
  811. case SPI_ID0:
  812. case SPI_ID1:
  813. case SPI_ID2:
  814. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  815. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  816. SPI->SER = 0;
  817. if (WLen <= SPIM_FIFO_TX_NUM)
  818. {
  819. TxLen = WLen;
  820. }
  821. else
  822. {
  823. TxLen = SPIM_FIFO_TX_NUM;
  824. }
  825. for(i = 0; i < TxLen; i++)
  826. {
  827. SPI->DR = TxData[i];
  828. }
  829. SPI->SER = 1;
  830. for(RxLen = 0; RxLen < WLen; RxLen++)
  831. {
  832. while (!SPI->RXFLR)
  833. {
  834. ;
  835. }
  836. DummyData = SPI->DR;
  837. if (TxLen < WLen)
  838. {
  839. SPI->DR = TxData[TxLen];
  840. TxLen++;
  841. }
  842. }
  843. if (RLen <= SPIM_FIFO_TX_NUM)
  844. {
  845. TxLen = RLen;
  846. }
  847. else
  848. {
  849. TxLen = SPIM_FIFO_TX_NUM;
  850. }
  851. for(i = 0; i < TxLen; i++)
  852. {
  853. SPI->DR = TxData[i];
  854. }
  855. for(RxLen = 0; RxLen < RLen; RxLen++)
  856. {
  857. while (!SPI->RXFLR)
  858. {
  859. ;
  860. }
  861. RxData[RxLen] = SPI->DR;
  862. if (TxLen < RLen)
  863. {
  864. SPI->DR = 0xff;
  865. TxLen++;
  866. }
  867. }
  868. SPI->SER = 0;
  869. break;
  870. }
  871. prvSPI[SpiID].IsBusy = 0;
  872. prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
  873. return 0;
  874. }
  875. int32_t SPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
  876. {
  877. #ifdef __BUILD_OS__
  878. if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) || OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= ((WLen + RLen) * 100000)))
  879. {
  880. prvSPI[SpiID].IsBlockMode = 0;
  881. #endif
  882. return prvSPI_FlashBlockTransfer(SpiID, TxData, WLen, RxData, RLen);
  883. #ifdef __BUILD_OS__
  884. }
  885. int32_t Result;
  886. uint32_t Time = ((WLen + RLen) * 1000) / (prvSPI[SpiID].Speed >> 3);
  887. uint8_t *Temp = malloc(WLen + RLen);
  888. memcpy(Temp, TxData, WLen);
  889. prvSPI[SpiID].IsBlockMode = 1;
  890. if (TxData)
  891. {
  892. Result = SPI_Transfer(SpiID, Temp, Temp, WLen + RLen, 1);
  893. }
  894. else
  895. {
  896. Result = SPI_Transfer(SpiID, Temp, Temp, WLen + RLen, 1);
  897. }
  898. if (Result)
  899. {
  900. prvSPI[SpiID].IsBlockMode = 0;
  901. free(Temp);
  902. return Result;
  903. }
  904. if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 10))
  905. {
  906. free(Temp);
  907. DBG("!!!");
  908. DMA_StopStream(prvSPI[SpiID].DMATxStream);
  909. DMA_StopStream(prvSPI[SpiID].DMARxStream);
  910. SPI_TransferStop(SpiID);
  911. prvSPI[SpiID].IsBlockMode = 0;
  912. return -1;
  913. }
  914. memcpy(RxData, Temp + WLen, RLen);
  915. prvSPI[SpiID].IsBlockMode = 0;
  916. free(Temp);
  917. return 0;
  918. #endif
  919. }
  920. void SPI_DMATxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
  921. {
  922. SPI_TypeDef *SPI;
  923. HSPIM_TypeDef *HSPI;
  924. DMA_InitTypeDef DMA_InitStruct;
  925. DMA_BaseConfig(&DMA_InitStruct);
  926. DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMATxChannel;
  927. DMA_InitStruct.DMA_Priority = DMA_Priority_3;
  928. prvSPI[SpiID].DMATxStream = Stream;
  929. switch(SpiID)
  930. {
  931. case HSPI_ID0:
  932. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  933. if (prvSPI[SpiID].IsOnlyTx)
  934. {
  935. DMA_InitStruct.DMA_Priority = DMA_Priority_0;
  936. }
  937. DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_32;
  938. DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_32;
  939. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->WDR;
  940. break;
  941. case SPI_ID0:
  942. case SPI_ID1:
  943. case SPI_ID2:
  944. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  945. DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_8;
  946. DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_8;
  947. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
  948. break;
  949. // case SPI_ID3:
  950. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  951. // break;
  952. default:
  953. return;
  954. }
  955. DMA_ConfigStream(Stream, &DMA_InitStruct);
  956. }
  957. void SPI_DMARxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
  958. {
  959. SPI_TypeDef *SPI;
  960. HSPIM_TypeDef *HSPI;
  961. DMA_InitTypeDef DMA_InitStruct;
  962. DMA_BaseConfig(&DMA_InitStruct);
  963. DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMARxChannel;
  964. DMA_InitStruct.DMA_Priority = DMA_Priority_2;
  965. prvSPI[SpiID].DMARxStream = Stream;
  966. switch(SpiID)
  967. {
  968. case HSPI_ID0:
  969. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  970. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->RDR;
  971. break;
  972. case SPI_ID0:
  973. case SPI_ID1:
  974. case SPI_ID2:
  975. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  976. DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
  977. break;
  978. // case SPI_ID3:
  979. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  980. // break;
  981. default:
  982. return;
  983. }
  984. DMA_ConfigStream(Stream, &DMA_InitStruct);
  985. }
  986. void SPI_TransferStop(uint8_t SpiID)
  987. {
  988. uint16_t Data;
  989. ISR_Clear(prvSPI[SpiID].IrqLine);
  990. ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
  991. SPI_TypeDef *SPI;
  992. HSPIM_TypeDef *HSPI;
  993. uint32_t TxLen, i;
  994. switch(SpiID)
  995. {
  996. case HSPI_ID0:
  997. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  998. HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
  999. HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
  1000. HSPI->FCR &= ~(3 << 6);
  1001. break;
  1002. case SPI_ID0:
  1003. SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  1004. case SPI_ID1:
  1005. case SPI_ID2:
  1006. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  1007. while(SPI->TXFLR){;}
  1008. while(SPI->RXFLR){Data = SPI->DR;}
  1009. SPI->SER = 0;
  1010. break;
  1011. // case SPI_ID3:
  1012. // SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
  1013. // break;
  1014. default:
  1015. return ;
  1016. }
  1017. prvSPI[SpiID].IsBusy = 0;
  1018. }
  1019. uint8_t SPI_IsTransferBusy(uint8_t SpiID)
  1020. {
  1021. return prvSPI[SpiID].IsBusy;
  1022. }
  1023. void SPI_SetNewConfig(uint8_t SpiID, uint32_t Speed, uint8_t NewMode)
  1024. {
  1025. HSPIM_TypeDef *HSPI;
  1026. SPI_TypeDef *SPI;
  1027. uint32_t div;
  1028. if (prvSPI[SpiID].IsBusy) return;
  1029. switch(SpiID)
  1030. {
  1031. case HSPI_ID0:
  1032. HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
  1033. div = (SystemCoreClock / Speed) >> 1;
  1034. HSPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS) + 1;
  1035. prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
  1036. HSPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS));
  1037. switch(NewMode)
  1038. {
  1039. case SPI_MODE_0:
  1040. break;
  1041. case SPI_MODE_1:
  1042. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
  1043. break;
  1044. case SPI_MODE_2:
  1045. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
  1046. break;
  1047. case SPI_MODE_3:
  1048. HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
  1049. break;
  1050. }
  1051. break;
  1052. case SPI_ID0:
  1053. case SPI_ID1:
  1054. case SPI_ID2:
  1055. SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
  1056. SPI->SSIENR = 0;
  1057. div = (SystemCoreClock >> 2) / Speed;
  1058. if (div % 2) div++;
  1059. prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
  1060. SPI->BAUDR = div;
  1061. SPI->CTRLR0 &= ~(SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH);
  1062. switch(NewMode)
  1063. {
  1064. case SPI_MODE_0:
  1065. break;
  1066. case SPI_MODE_1:
  1067. SPI->CTRLR0 |= SPI_CTRLR0_SCPOL;
  1068. break;
  1069. case SPI_MODE_2:
  1070. SPI->CTRLR0 |= SPI_CTRLR0_SCPH;
  1071. break;
  1072. case SPI_MODE_3:
  1073. SPI->CTRLR0 |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
  1074. break;
  1075. }
  1076. SPI->SSIENR = 1;
  1077. break;
  1078. }
  1079. }