SC60 SDM450 Android9.0 HP5806驱动

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需求：
      实现在SC60 Android9.0的平台上，驱动HP5806，是现在APP端获取到温度和气压高度值！

解决方案：
     JNI部分代码如下（hp5806_driver.tar.gz  为在Android9.0下的驱动移植包；）：

1. typedef struct
   
2. {
   
3.     int16_t        C0;
   
4.     int16_t        C1;
   
5.     int32_t        C00;
   
6.     int32_t        C10;
   
7.     int16_t        C01;
   
8.     int16_t        C11;
   
9.     int16_t        C20;
   
10.     int16_t        C21;
    
11.     int16_t        C30;
    
12.     uint32_t tmp_osr_scale_coeff;
    
13.     uint32_t prs_osr_scale_coeff;
    
14. }hp5806_calib_data;
    
15. 
    
16. typedef struct{
    
17.     uint8_t  pressure[3];
    
18.     uint8_t  temperature[3];
    
19.     hp5806_calib_data calib_coeffs;
    
20. }hp5806_report_s;
    
21. 
    
22. static int hp5806_fd = -1;
    
23. 
    
24. #define KT        524288
    
25. #define KP        253952
    
26. void hp5806_convert(hp5806_report_s * rp,float * pressure,float *temp)
    
27. {
    
28.     long         press_raw;
    
29.     long         temp_raw;
    
30. 
    
31.     long int temputer_valu = 0;
    
32.     long int pressure_valu = 0;
    
33. 
    
34.     long    Traw;
    
35.     long    Praw;
    
36.     double  Traw_sc;
    
37.     double  Praw_sc;
    
38. 
    
39.     double         temp_scaled;
    
40.     float         temp_final;
    
41.     double         press_scaled;
    
42.     float         press_final;
    
43. 
    
44.     LOGE("pressure[0]=0x%x,pressure[1]=0x%x,pressure[2]=0x%x,temperature[0]=0x%x,temperature[1]=0x%x,temperature[2]=0x%x\r\n",rp->pressure[0],rp->pressure[1],rp->pressure[2],rp->temperature[0],rp->temperature[1],rp->temperature[2]);
    
45.     LOGE("calib.C0 =%d,C1 =%d,C00 =%d,C10 =%d,C01 =%d,C11 =%d,C20 =%d,C21 =%d,C30 =%d\r\n",rp->calib_coeffs.C0,rp->calib_coeffs.C1,rp->calib_coeffs.C00,rp->calib_coeffs.C10,rp->calib_coeffs.C01,rp->calib_coeffs.C11,rp->calib_coeffs.C20,rp->calib_coeffs.C21,rp->calib_coeffs.C30);
    
46. 
    
47.     press_raw = (rp->pressure[2]) + (rp->pressure[1]<<8) + (rp->pressure[0] <<16);
    
48.     temp_raw  = (rp->temperature[2]) + (rp->temperature[1]<<8) + (rp->temperature[0] <<16);
    
49. 
    
50.     LOGE("press_raw %ld temp_raw %ld\r\n",press_raw,temp_raw);
    
51.     if(press_raw>8388607)
    
52.     {
    
53.         press_raw=press_raw-16777216;
    
54.     }
    
55. 
    
56.     Traw_sc=(double)temp_raw/KT;
    
57.     Praw_sc=(double)press_raw/KP;
    
58. 
    
59.     LOGE("Praw_sc %lf Traw_sc %lf\r\n",Praw_sc,Traw_sc);
    
60. 
    
61.     temp_final=(float)rp->calib_coeffs.C0*0.5f + (float)rp->calib_coeffs.C1*Traw_sc;
    
62.     LOGE("temp_final %f\r\n",temp_final);
    
63. 
    
64. 
    
65.     press_final=rp->calib_coeffs.C00 + Praw_sc *(rp->calib_coeffs.C10 + Praw_sc *(rp->calib_coeffs.C20+ Praw_sc *rp->calib_coeffs.C30)) + Traw_sc*rp->calib_coeffs.C01 + Traw_sc *Praw_sc *(rp->calib_coeffs.C11+Praw_sc *rp->calib_coeffs.C21);
    
66.     LOGE("press_final %f\r\n",press_final);
    
67. 
    
68.     temputer_valu = (long int)(temp_final*1000);
    
69.     pressure_valu = (long int)(press_final*1000);
    
70.     LOGE("temputer_valu %ld pressure_valu %ld \r\n",temputer_valu,pressure_valu);
    
71. }
    
72. 
    
73. 
    
74. 
    
75. 
    
76. bool hp5806_open()
    
77. {
    
78.     hp5806_fd = open("/dev/HP5806", O_RDONLY);
    
79.     usleep(10000);
    
80.     if(hp5806_fd < 0){
    
81.         LOGE("Can not open dev %s!\n", "/dev/hp5806");
    
82.         return false;
    
83.     }
    
84.     LOGE("open dev %s! success!\n", "/dev/hp5806");
    
85.     return true;
    
86. }
    
87. 
    
88. bool hp5806_close()
    
89. {
    
90.     int ret = 0;
    
91.     ret = close(hp5806_fd);
    
92. 
    
93.     return ret;
    
94. }
    
95. 
    
96. long nmh21_get_temp(void)
    
97. {
    
98.     int ret;
    
99.     long    temputer_valu = 0,temp_raw;
    
100.     double  Traw_sc;
     
101.     float         temp_final;
     
102. 
     
103.     hp5806_report_s report_hp5806;
     
104. 
     
105.     hp5806_open();
     
106.     ret = read(hp5806_fd,&report_hp5806,sizeof(report_hp5806));
     
107.     if(ret < 0)
     
108.         LOGE("read hp5806_fd fail!\n");
     
109.     else{
     
110.          //LOGE("report_hp5806.pressure 0x%x 0x%x 0x%x!\n",report_hp5806.pressure[0],report_hp5806.pressure[1],report_hp5806.pressure[2]);
     
111.          LOGE("report_hp5806.temperature 0x%x 0x%x 0x%x!\n",report_hp5806.temperature[0],report_hp5806.temperature[1],report_hp5806.temperature[2]);
     
112. 
     
113.         temp_raw  = (report_hp5806.temperature[2]) + (report_hp5806.temperature[1]<<8) + (report_hp5806.temperature[0] <<16);
     
114.         if(temp_raw>8388607)
     
115.         {
     
116.             temp_raw=temp_raw-16777216;
     
117.         }
     
118.         Traw_sc=(double)temp_raw/KT;
     
119. 
     
120.         temp_final=(float)report_hp5806.calib_coeffs.C0*0.5f + report_hp5806.calib_coeffs.C1*Traw_sc;
     
121. 
     
122.         temputer_valu = (long)(temp_final * 1000);
     
123. 
     
124.         LOGE("temp_raw=%ld , Traw_sc=%lf, temp_final=%f temputer_valu=%ld\r\n",temp_raw,Traw_sc,temp_final,temputer_valu);
     
125.     }
     
126. 
     
127.     hp5806_close();
     
128. 
     
129.     return temputer_valu;
     
130. 
     
131. }
     
132. 
     
133. long nmh21_get_pressure(void)
     
134. {
     
135.     int ret;
     
136.     long    pressure_valu = 0,press_raw,temp_raw;
     
137.     double  Praw_sc,Traw_sc;
     
138.     float        press_final;
     
139. 
     
140.     hp5806_report_s report_hp5806;
     
141. 
     
142.     hp5806_open();
     
143.     ret = read(hp5806_fd,&report_hp5806,sizeof(report_hp5806));
     
144.     if(ret < 0)
     
145.         LOGE("read hp5806_fd fail!\n");
     
146.     else{
     
147.         press_raw = (report_hp5806.pressure[2]) + (report_hp5806.pressure[1]<<8) + (report_hp5806.pressure[0] <<16);
     
148.         LOGE("report_hp5806.pressure 0x%x 0x%x 0x%x!\n",report_hp5806.pressure[0],report_hp5806.pressure[1],report_hp5806.pressure[2]);
     
149. 
     
150.         temp_raw  = (report_hp5806.temperature[2]) + (report_hp5806.temperature[1]<<8) + (report_hp5806.temperature[0] <<16);
     
151.         LOGE("report_hp5806.temperature 0x%x 0x%x 0x%x!\n",report_hp5806.temperature[0],report_hp5806.temperature[1],report_hp5806.temperature[2]);
     
152. 
     
153.         if(temp_raw>8388607)
     
154.         {
     
155.             temp_raw=temp_raw-16777216;
     
156.         }
     
157.         Traw_sc=(double)temp_raw/KT;
     
158. 
     
159.         if(press_raw>8388607)
     
160.         {
     
161.             press_raw=press_raw-16777216;
     
162.         }
     
163.         Praw_sc=(double)press_raw/KP;
     
164. 
     
165.         press_final=report_hp5806.calib_coeffs.C00 + Praw_sc *(report_hp5806.calib_coeffs.C10 + Praw_sc *(report_hp5806.calib_coeffs.C20+ Praw_sc *report_hp5806.calib_coeffs.C30)) + Traw_sc*report_hp5806.calib_coeffs.C01 + Traw_sc *Praw_sc *(report_hp5806.calib_coeffs.C11+Praw_sc *report_hp5806.calib_coeffs.C21);
     
166. 
     
167.         pressure_valu = (long)(press_final * 1000);
     
168. 
     
169.         LOGE("temp_raw=%ld , Traw_sc=%lf, press_final=%f pressure_valu=%ld\r\n",temp_raw,Traw_sc,press_final,pressure_valu);
     
170.     }
     
171. 
     
172.     hp5806_close();
     
173. 
     
174.     return pressure_valu;
     
175. 
     
176. 
     
177. }
     
178. float hp5806_altitude_convert(float Press, float Ref_P)
     
179. {
     
180.     return 44330 * (1 - powf(((float)Press / (float)Ref_P),(1/5.255)));
     
181. }

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