xref: /utopia/UTPA2-700.0.x/modules/hdmi/hal/messi/cec/mhal_cec.c (revision 53ee8cc121a030b8d368113ac3e966b4705770ef)
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93 // File Name: mhal_CEC.c
94 // Description: For CEC functions.
95 ////////////////////////////////////////////////////////////////////////////////
96 
97 
98 #define _MHAL_CEC_C_
99 
100 #include <string.h>
101 #include "MsCommon.h"
102 #include "cec_hwreg_utility2.h"
103 #include "cec_Analog_Reg.h"
104 #include "MsOS.h"
105 #include "apiCEC.h"
106 #include "MsIRQ.h"
107 #include "mhal_CEC.h"
108 #include "asmCPU.h"
109 
110 extern MS_VIRT CEC_RIU_BASE;
111 extern InterruptNum gCECIRQ;
112 extern MS_U8 g_u8CecVendorID[3];
113 extern MS_U8 g_u8RetryCnt;
114 
115 #define PM_REG_WRITE    MDrv_WriteByte
116 #define PM_REG_READ     MDrv_ReadByte
117 
118 
119 #define MST_XTAL_CLOCK_HZ   (12000000UL)    /* Temp define */
120 
121 #define _NOP_                       MAsm_CPU_Nop();
122 
123 #if(defined(CONFIG_MLOG))
124 #include "ULog.h"
125 
126 #define MHAL_CEC_MSG_INFO(format, args...)       //ULOGI("CEC", format, ##args)
127 #define MHAL_CEC_MSG_WARNING(format, args...)    ULOGW("CEC", format, ##args)
128 #define MHAL_CEC_MSG_DEBUG(format, args...)      ULOGD("CEC", format, ##args)
129 #define MHAL_CEC_MSG_ERROR(format, args...)      ULOGE("CEC", format, ##args)
130 #define MHAL_CEC_MSG_FATAL(format, args...)      ULOGF("CEC", format, ##args)
131 
132 #else
133 #define MHAL_CEC_MSG_INFO(format, args...)       //printf(format, ##args)
134 #define MHAL_CEC_MSG_WARNING(format, args...)    printf(format, ##args)
135 #define MHAL_CEC_MSG_DEBUG(format, args...)      printf(format, ##args)
136 #define MHAL_CEC_MSG_ERROR(format, args...)      printf(format, ##args)
137 #define MHAL_CEC_MSG_FATAL(format, args...)      printf(format, ##args)
138 
139 #endif
140 
mhal_CEC_PortSelect(MsCEC_INPUT_PORT InputPort)141 void mhal_CEC_PortSelect(MsCEC_INPUT_PORT InputPort)
142 {
143 
144 }
145 
mhal_CEC_init_riu_base(MS_VIRT u32riu_base,MS_VIRT u32PMriu_base)146 void mhal_CEC_init_riu_base(MS_VIRT u32riu_base, MS_VIRT u32PMriu_base)
147 {
148     CEC_RIU_BASE = u32PMriu_base;
149 }
150 
151 
mhal_CEC_HeaderSwap(MS_U8 value)152 MS_U8 mhal_CEC_HeaderSwap(MS_U8 value)
153 {
154     return(((value&0x0f)<<4)+((value&0xf0)>>4));
155 }
156 
mhal_CEC_SendFrame(MS_U8 header,MS_U8 opcode,MS_U8 * operand,MS_U8 len)157 MS_U8 mhal_CEC_SendFrame(MS_U8 header, MS_U8 opcode, MS_U8* operand, MS_U8 len)
158 {
159     MS_U8 i, cnt, *ptr, res;
160     MS_U8 u8waitcnt;
161 
162      // clear CEC TX INT status
163     PM_REG_WRITE(H_BK_CEC(0x12), 0x0E);
164     PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
165     PM_REG_WRITE( L_BK_CEC(0x18), header );
166     PM_REG_WRITE( H_BK_CEC(0x18), opcode );
167 
168     MHAL_CEC_MSG_INFO("\r\n/********  CEC Tx **********/\r\n");
169     MHAL_CEC_MSG_INFO("CEC Tx FIFO= 0x%x", (MS_U8)header);
170     MHAL_CEC_MSG_INFO(" 0x%x", (MS_U8)opcode);
171 
172     if(len > 0)
173     {
174         ptr=operand;
175         for(i=0;i<len;i++)
176         {
177             PM_REG_WRITE( L_BK_CEC(0x19)+i , *(ptr+i) );
178             MHAL_CEC_MSG_INFO(" 0x%x", *(operand+i));
179         }
180         MHAL_CEC_MSG_INFO("\r\n/**************************/\r\n");
181     }
182 
183     if((PM_REG_READ(L_BK_CEC(0x05))== 1) && (PM_REG_READ(H_BK_CEC(0x05))== 0)) // CEC idle
184     {
185         MHAL_CEC_MSG_INFO("*** CEC idle!!! ***\n");
186 
187         // CEC transmit length
188         //if((opcode==0x00)&&(operand==NULL)&&(len==0))
189         if((opcode==0x00)&&(len==0))
190         {
191             PM_REG_WRITE(L_BK_CEC(0x00), 0);                   //polling message
192             u8waitcnt = 5;
193         }
194         else
195         {
196             PM_REG_WRITE(L_BK_CEC(0x00), (len+1));
197             u8waitcnt = 4 * (len+2);
198         }
199 
200     //The total time,
201     //(1). successful, 4.5 ms + 10 * 2.4 ms * N = 4.5 ms + 24 * N
202     //              = 28.5 ms (1), or 52.5 ms (2), ....
203     //(2). NAK,        (4.5 ms + 10 * 2.4 ms) * 1 + (4.5 ms + 10 * 2.4 ms +7.2 ms(3 bit time)) * retry (3)
204     //              = 28.5 + 35.2 * 3 = 133.6 ms
205 
206         cnt=0;
207         MsOS_DelayTask(20);
208 
209         do
210         {
211             MsOS_DelayTask(10);
212             if(cnt++>=u8waitcnt)
213                 break;
214         } while((PM_REG_READ(H_BK_CEC(0x11))&0x0E)==0);
215         res = (PM_REG_READ(H_BK_CEC(0x11))&0x0E);
216 
217         if(cnt>=u8waitcnt)
218             res |= E_CEC_SYSTEM_BUSY;
219 
220          // clear CEC TX INT status
221         PM_REG_WRITE(H_BK_CEC(0x12), 0x0E);
222         PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
223     }
224     else
225     {
226         MHAL_CEC_MSG_INFO("*** system busy!!! ***\n");
227 
228         res = E_CEC_SYSTEM_BUSY;
229     }
230 
231     return res;
232 }
233 
mhal_CEC_SendFramex(MS_U8 header,MS_U8 opcode,MS_U8 * operand,MS_U8 len)234 MS_U8 mhal_CEC_SendFramex(MS_U8 header, MS_U8 opcode, MS_U8* operand, MS_U8 len)
235 {
236     MS_U8 i, cnt, *ptr, res;
237     MS_U8 u8waitcnt;
238     volatile MS_U16 k, m;
239      // clear CEC TX INT status
240     PM_REG_WRITE(H_BK_CEC(0x12), 0x0E);
241     PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
242     PM_REG_WRITE( L_BK_CEC(0x18), header );
243     PM_REG_WRITE( H_BK_CEC(0x18), opcode );
244 
245     MHAL_CEC_MSG_INFO("\r\n/********  CEC Tx **********/\r\n");
246     MHAL_CEC_MSG_INFO("CEC Tx FIFO= 0x%x", (MS_U8)header);
247     MHAL_CEC_MSG_INFO(" 0x%x", (MS_U8)opcode);
248 
249     if(len > 0)
250     {
251         ptr=operand;
252         for(i=0;i<len;i++)
253         {
254             PM_REG_WRITE( L_BK_CEC(0x19)+i , *(ptr+i) );
255             MHAL_CEC_MSG_INFO(" 0x%x", *(operand+i));
256         }
257         MHAL_CEC_MSG_INFO("\r\n/**************************/\r\n");
258     }
259 
260     if((PM_REG_READ(L_BK_CEC(0x05))== 1) && (PM_REG_READ(H_BK_CEC(0x05))== 0)) // CEC idle
261     {
262         MHAL_CEC_MSG_INFO("*** CEC idle!!! ***\n");
263 
264         // CEC transmit length
265         //if((opcode==0x00)&&(operand==NULL)&&(len==0))
266         if((opcode==0x00)&&(len==0))
267         {
268             PM_REG_WRITE(L_BK_CEC(0x00), 0);                   //polling message
269             u8waitcnt = 5;
270         }
271         else
272         {
273             PM_REG_WRITE(L_BK_CEC(0x00), (len+1));
274             u8waitcnt = 30;
275         }
276 
277     //The total time,
278     //(1). successful, 4.5 ms + 10 * 2.4 ms * N = 4.5 ms + 24 * N
279     //              = 28.5 ms (1), or 52.5 ms (2), ....
280     //(2). NAK,        (4.5 ms + 10 * 2.4 ms) * 1 + (4.5 ms + 10 * 2.4 ms +7.2 ms(3 bit time)) * retry (3)
281     //              = 28.5 + 35.2 * 3 = 133.6 ms
282 
283 
284         cnt=0;
285         //MsOS_DelayTask(20);
286         for(k = 0; k< 20000; k++)
287         {
288             _NOP_
289             _NOP_
290             _NOP_
291         }
292 
293 
294         do
295         {
296             //MsOS_DelayTask(10);
297             for(k = 0; k< 20000; k++)
298             {
299                 for(m=0;m<50;m++)
300                 {
301                     _NOP_
302                     _NOP_
303                     _NOP_
304                     _NOP_
305                     _NOP_
306                 }
307             }
308             if(cnt++>=u8waitcnt)
309                 break;
310         } while((PM_REG_READ(H_BK_CEC(0x11))&0x0E)==0);
311 
312         res = (PM_REG_READ(H_BK_CEC(0x11))&0x0E);
313 
314         if(cnt>=u8waitcnt)
315             res |= E_CEC_SYSTEM_BUSY;
316 
317          // clear CEC TX INT status
318         PM_REG_WRITE(H_BK_CEC(0x12), 0x0E);
319         PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
320     }
321     else
322     {
323         MHAL_CEC_MSG_INFO("*** system busy!!! ***\n");
324 
325         res = E_CEC_SYSTEM_BUSY;
326     }
327 
328     return res;
329 }
330 
331 
mhal_CEC_SetMyAddress(MS_U8 mylogicaladdress)332 void mhal_CEC_SetMyAddress(MS_U8 mylogicaladdress)
333 {
334     PM_REG_WRITE(L_BK_CEC(0x02), (PM_REG_READ(L_BK_CEC(0x02)) & 0x0F) |(mylogicaladdress<<4));
335 }
336 
mhal_CEC_INTEn(MS_BOOL bflag)337 void mhal_CEC_INTEn(MS_BOOL bflag)
338 {
339     if(bflag) // unmask
340         PM_REG_WRITE(L_BK_CEC(0x13), 0x1E);  //REG_HDMI_INT_MASK
341 
342     else // Mask CEC interrupt
343 #if ENABLE_CEC_MULTIPLE
344         PM_REG_WRITE(L_BK_CEC(0x13), 0x7F);  //REG_HDMI_INT_MASK
345 #else
346         PM_REG_WRITE(L_BK_CEC(0x13), 0x1F);  //REG_HDMI_INT_MASK
347 #endif
348 
349 }
350 
351 
mhal_CEC_Init(MS_U32 u32XTAL_CLK_Hz)352 void mhal_CEC_Init(MS_U32 u32XTAL_CLK_Hz)
353 {
354     MS_U16 reg_val0, reg_val1;
355 
356 #if ENABLE_CEC_INT
357 
358     // CEC irq clear
359     PM_REG_WRITE(H_BK_CEC(0x12), 0x1F);
360     PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
361     // CEC irq mask control -only enable CEC rx irq
362     PM_REG_WRITE(L_BK_CEC(0x13), 0x1E);
363     // CEC interrupt mask for PM/normal function
364     PM_REG_WRITE(L_BK_CEC(0x30), 0x08); // 11_30[3] = 1 Interrupt clear type select (Level), clear by itself
365 
366     gCECIRQ = E_INT_IRQ_CEC; // IRQ52
367 #endif
368 
369     PM_REG_WRITE(L_BK_CEC(0x14),0x01); // [1]: clock source from Xtal;[0]: Power down CEC controller select
370     PM_REG_WRITE(H_BK_CEC(0x03),PM_REG_READ(H_BK_CEC(0x03))&(~ BIT(4))); // [4]: Standby mode;
371     PM_REG_WRITE(H_BK_CEC(0x00),0x10|RETRY_CNT); // retry times
372     PM_REG_WRITE(L_BK_CEC(0x01),0x80); // [5]:CEC clock no gate; [7]: Enable CEC controller
373     PM_REG_WRITE(H_BK_CEC(0x01),(BusFreeTime<<4)|(ReTxInterval)); // CNT1=ReTxInterval; CNT2=BusFreeTime;
374     PM_REG_WRITE(L_BK_CEC(0x02),(E_LA_TV<<4)|(FrameInterval)); // CNT3=FrameInterval; [7:4]=logical address: TV
375 #if ENABLE_CEC_MULTIPLE
376     PM_REG_WRITE(L_BK_CEC(0x30),PM_REG_READ(L_BK_CEC(0x30))|BIT(0)); // enable CEC multiple function
377 #endif
378     reg_val0=(MST_XTAL_CLOCK_HZ%100000l)*0.00016+0.5;
379     PM_REG_WRITE(H_BK_CEC(0x02),(MST_XTAL_CLOCK_HZ/100000l)); // CEC time unit by Xtal(integer)
380     reg_val1 = PM_REG_READ(L_BK_CEC(0x03));
381     PM_REG_WRITE(L_BK_CEC(0x03), ((reg_val1 & 0xF0) | reg_val0)); // CEC time unit by Xtal(fractional)
382 
383     PM_REG_WRITE(L_BK_CEC(0x11), 0xFF); // clear CEC status
384 
385 
386 }
387 
mhal_CEC_IsMessageReceived(void)388 MS_BOOL mhal_CEC_IsMessageReceived(void)
389 {
390     return (PM_REG_READ(H_BK_CEC(0x11))& 0x01 ? TRUE : FALSE);
391 }
392 
mhal_CEC_ReceivedMessageLen(void)393 MS_U8 mhal_CEC_ReceivedMessageLen(void)
394 {
395     return ((PM_REG_READ(L_BK_CEC(0x04)) & 0x1F) + 1);
396 }
397 
mhal_CEC_GetMessageByte(MS_U8 idx)398 MS_U8 mhal_CEC_GetMessageByte(MS_U8 idx)
399 {
400     return (PM_REG_READ(L_BK_CEC(0x20) + idx));
401 }
402 
mhal_CEC_ClearRxStatus(void)403 void mhal_CEC_ClearRxStatus(void)
404 {
405     // clear RX INT status
406     PM_REG_WRITE(H_BK_CEC(0x12), 0x11);
407     PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
408     // clear RX NACK status
409     PM_REG_WRITE(L_BK_CEC(0x11), 0xFF);
410 }
411 
412 /***************************************************************************************/
413 /// config cec wake up
414 /***************************************************************************************/
415 
mhal_CEC_ConfigWakeUp(void)416 void mhal_CEC_ConfigWakeUp(void)
417 {
418     MS_U16 reg_val0, reg_val1;
419     MHAL_CEC_MSG_INFO("\r\n Here do the PM config cec wakeup \r\n");
420 
421     //XBYTE[0x250C] &= ~BIT0;
422     MDrv_WriteByte( REG_COMBO_PHY0_P0_0C_H, MDrv_ReadByte(REG_COMBO_PHY0_P0_0C_H) &(~ BIT(4)));
423 
424 
425     //(1) enable chiptop clk_mcu & clk_pram
426   #if 0
427     XBYTE[0x0E00] = 0x03;
428     //enable PM_Sleep's clk_mcu and _pram
429     Drv_WriteByte(L_BK_PMSLP(0x00), 0x03);
430     XBYTE[0x0E01] = 0x0F;
431     //0x0C; Ken 20080916 for calibration to 1Mz
432     MDrv_WriteByte(H_BK_PMSLP(0x00), 0x0F);
433   #endif
434 
435 
436     //(2) HDMI CEC settings
437     PM_REG_WRITE(H_BK_CEC(0x00),0x10|g_u8RetryCnt); // retry times
438     PM_REG_WRITE(L_BK_CEC(0x01),0x80); // [5]:CEC clock no gate; [7]: Enable CEC controller
439     PM_REG_WRITE(H_BK_CEC(0x01),0x63); // CNT1=3; CNT2 = 6;
440     PM_REG_WRITE(L_BK_CEC(0x02),0x07); // CNT3=7; logical address: TV
441 
442     reg_val0=(MST_XTAL_CLOCK_HZ%100000l)*0.00016+0.5;
443     PM_REG_WRITE(H_BK_CEC(0x02),(MST_XTAL_CLOCK_HZ/100000l)); // CEC time unit by Xtal(integer)
444 
445     reg_val1 = PM_REG_READ(L_BK_CEC(0x03));
446     PM_REG_WRITE(L_BK_CEC(0x03), ((reg_val1 & 0xF0) | reg_val0)); // CEC time unit by Xtal(fractional)
447 
448 
449     //(3) PM Sleep: wakeup enable sources
450     //PM_REG_WRITE(L_BK_PMMCU(0x00),0x01); // reg_cec_enw
451 
452 
453     //(4) PM CEC power down controller settings
454     // Mask CEC interrupt in standby mode
455     PM_REG_WRITE(L_BK_CEC(0x13),0xFF);
456     // select power down SW CEC controller
457     PM_REG_WRITE(L_BK_CEC(0x14),0x01); // [1]: clock source from Xtal;[0]: Power down CEC controller select
458     PM_REG_WRITE(L_BK_CEC(0x01),0x00); // [5]:CEC clock no gate; [7]: Disable CEC controller
459     PM_REG_WRITE(L_BK_CEC(0x01),0x80); // [5]:CEC clock no gate; [7]: Enable CEC controller
460 #if 0//ENABLE_SW_CEC_WAKEUP
461     PM_REG_WRITE(H_BK_CEC(0x03),PM_REG_READ(H_BK_CEC(0x03))&(~ BIT(4))); // [4]: Standby mode;
462 #else
463     PM_REG_WRITE(H_BK_CEC(0x03),PM_REG_READ(H_BK_CEC(0x03))|(BIT(4))); // [4]: sleep mode;
464 #endif
465 
466 
467     //(5) PM CEC wakeup opcode settings
468     // OPCODE0: 0x04(Image view on)
469     // OPCODE1: 0x0D(Text view on)
470     // OPCODE2: 0x44 0x40(Power)
471     //          0x44 0x6D(Power ON Function)
472     // OPCODE3: N/A
473     // OPCODE4: 0x82(Active source) length = 2
474     PM_REG_WRITE(L_BK_CEC(0x07), 0x37); // Enable OP0~2 and OP4
475     PM_REG_WRITE(H_BK_CEC(0x07), 0x24); // Eanble OPCODE2's operand
476 
477     PM_REG_WRITE(L_BK_CEC(0x08), E_MSG_OTP_IMAGE_VIEW_ON);  // OPCODE0: Image View On
478     PM_REG_WRITE(H_BK_CEC(0x08), E_MSG_OTP_TEXT_VIEW_ON);   // OPCODE1: Text View ON
479 
480     PM_REG_WRITE(L_BK_CEC(0x09), E_MSG_UI_PRESS);           // OPCODE2: E_MSG_UI_PRESS
481     PM_REG_WRITE(H_BK_CEC(0x0B), E_MSG_UI_POWER);           // OPCODE2 operand: Power
482     PM_REG_WRITE(L_BK_CEC(0x0C), E_MSG_UI_POWER_ON_FUN);    // OPCODE2 operand: Power ON
483 
484     PM_REG_WRITE(L_BK_CEC(0x0A), E_MSG_ACTIVE_SOURCE);      // OPCODE4: Active source
485 
486     // [2:0]: CEC version 1.4; [7]: OP4 is broadcast message
487     PM_REG_WRITE(H_BK_CEC(0x0D), 0x80 | HDMI_CEC_VERSION);
488 
489 
490     //(6) Device(TV) Vendor ID for customer (Big Endian)
491     // It depends end-customer's vendor ID
492     MHAL_CEC_MSG_INFO("!!!!!!!!!!!!!!!!!!!Change this Vendor ID according to customer!!!!!!!!!!!!!!!!\n");
493     PM_REG_WRITE(L_BK_CEC(0x0F), g_u8CecVendorID[0]); // Device Vendor ID
494     PM_REG_WRITE(H_BK_CEC(0x0F), g_u8CecVendorID[1]); // Device Vendor ID
495     PM_REG_WRITE(L_BK_CEC(0x10), g_u8CecVendorID[2]); // Device Vendor ID
496 
497     // [2:0]: Feature abort reason - "Not in correct mode to respond"
498     PM_REG_WRITE(H_BK_CEC(0x10), E_MSG_AR_CANNOTRESPOND );
499 
500 
501     //(7) Device Physical address: default is 0x00 0x00 0x00
502     PM_REG_WRITE(L_BK_CEC(0x0E), 0x00); // Physical address 0.0
503     PM_REG_WRITE(H_BK_CEC(0x0E), 0x00); // Physical address 0.0
504     PM_REG_WRITE(H_BK_CEC(0x14), 0x00); // Device type: TV
505 
506 
507     //(8) Clear CEC status
508     PM_REG_WRITE(L_BK_CEC(0x11), 0x7F); // Clear CEC wakeup status
509     PM_REG_WRITE(H_BK_CEC(0x12), 0x1F); // Clear RX/TX/RF/LA/NACK status status
510     PM_REG_WRITE(H_BK_CEC(0x12), 0x00);
511 }
512 
mhal_CEC_Enabled(MS_BOOL bEnableFlag)513 void mhal_CEC_Enabled(MS_BOOL bEnableFlag)
514 {
515     if(bEnableFlag)
516         PM_REG_WRITE(L_BK_CEC(0x01),0x80); //Enable PM CEC controller
517     else
518         PM_REG_WRITE(L_BK_CEC(0x01),0x00); //Disable PM CEC controller
519 }
520 
mhal_CEC_TxStatus(void)521 MS_U8 mhal_CEC_TxStatus(void)
522 {
523     return (PM_REG_READ(H_BK_CEC(0x11))&0x0E);
524 }
525 
mhal_CEC_Device_Is_Tx(void)526 MS_BOOL mhal_CEC_Device_Is_Tx(void)
527 {
528     return CEC_DEVICE_IS_SOURCE;
529 }
530