Root/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/cntmr/mvCntmr.c

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41    * Redistributions of source code must retain the above copyright notice,
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53ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
54WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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61SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62
63*******************************************************************************/
64
65#include "mvCntmr.h"
66#include "cpu/mvCpu.h"
67
68/* defines */
69#ifdef MV_DEBUG
70    #define DB(x) x
71#else
72    #define DB(x)
73#endif
74
75extern unsigned int whoAmI(void);
76
77/*******************************************************************************
78* mvCntmrLoad -
79*
80* DESCRIPTION:
81* Load an init Value to a given counter/timer
82*
83* INPUT:
84* countNum - counter number
85* value - value to be loaded
86*
87* OUTPUT:
88* None.
89*
90* RETURN:
91* MV_BAD_PARAM on bad parameters , MV_ERROR on error ,MV_OK on sucess
92*******************************************************************************/
93MV_STATUS mvCntmrLoad(MV_U32 countNum, MV_U32 value)
94{
95    if (countNum >= MV_CNTMR_MAX_COUNTER )
96    {
97
98        mvOsPrintf(("mvCntmrLoad: Err. Illigal counter number \n"));
99        return MV_BAD_PARAM;;
100
101    }
102
103    MV_REG_WRITE(CNTMR_RELOAD_REG(countNum),value);
104    MV_REG_WRITE(CNTMR_VAL_REG(countNum),value);
105
106    return MV_OK;
107}
108
109/*******************************************************************************
110* mvCntmrRead -
111*
112* DESCRIPTION:
113* Returns the value of the given Counter/Timer
114*
115* INPUT:
116* countNum - counter number
117*
118* OUTPUT:
119* None.
120*
121* RETURN:
122* MV_U32 counter value
123*******************************************************************************/
124MV_U32 mvCntmrRead(MV_U32 countNum)
125{
126    return MV_REG_READ(CNTMR_VAL_REG(countNum));
127}
128
129/*******************************************************************************
130* mvCntmrWrite -
131*
132* DESCRIPTION:
133* Returns the value of the given Counter/Timer
134*
135* INPUT:
136* countNum - counter number
137* countVal - value to write
138*
139* OUTPUT:
140* None.
141*
142* RETURN:
143* None
144*******************************************************************************/
145void mvCntmrWrite(MV_U32 countNum,MV_U32 countVal)
146{
147    MV_REG_WRITE(CNTMR_VAL_REG(countNum),countVal);
148}
149
150/*******************************************************************************
151* mvCntmrCtrlSet -
152*
153* DESCRIPTION:
154* Set the Control to a given counter/timer
155*
156* INPUT:
157* countNum - counter number
158* pCtrl - pointer to MV_CNTMR_CTRL structure
159*
160* OUTPUT:
161* None.
162*
163* RETURN:
164* MV_BAD_PARAM on bad parameters , MV_ERROR on error ,MV_OK on sucess
165*******************************************************************************/
166MV_STATUS mvCntmrCtrlSet(MV_U32 countNum, MV_CNTMR_CTRL *pCtrl)
167{
168    MV_U32 cntmrCtrl;
169
170    if (countNum >= MV_CNTMR_MAX_COUNTER )
171    {
172
173        DB(mvOsPrintf(("mvCntmrCtrlSet: Err. Illigal counter number \n")));
174        return MV_BAD_PARAM;;
175
176    }
177
178    /* read control register */
179    cntmrCtrl = MV_REG_READ(CNTMR_CTRL_REG);
180
181    
182    if (pCtrl->enable) /* enable counter\timer */
183    {
184        cntmrCtrl |= CTCR_ARM_TIMER_EN(countNum);
185    }
186    else /* disable counter\timer */
187    {
188        cntmrCtrl &= ~CTCR_ARM_TIMER_EN(countNum);
189    }
190
191    if ( pCtrl->autoEnable ) /* Auto mode */
192    {
193        cntmrCtrl |= CTCR_ARM_TIMER_AUTO_EN(countNum);
194
195    }
196    else /* no auto mode */
197    {
198        cntmrCtrl &= ~CTCR_ARM_TIMER_AUTO_EN(countNum);
199    }
200
201    MV_REG_WRITE(CNTMR_CTRL_REG,cntmrCtrl);
202
203    return MV_OK;
204
205}
206
207/*******************************************************************************
208* mvCntmrCtrlGet -
209*
210* DESCRIPTION:
211* Get the Control value of a given counter/timer
212*
213* INPUT:
214* countNum - counter number
215* pCtrl - pointer to MV_CNTMR_CTRL structure
216*
217* OUTPUT:
218* Counter\Timer control value
219*
220* RETURN:
221* MV_BAD_PARAM on bad parameters , MV_ERROR on error ,MV_OK on sucess
222*******************************************************************************/
223MV_STATUS mvCntmrCtrlGet(MV_U32 countNum, MV_CNTMR_CTRL *pCtrl)
224{
225    MV_U32 cntmrCtrl;
226
227    if (countNum >= MV_CNTMR_MAX_COUNTER )
228    {
229        DB(mvOsPrintf(("mvCntmrCtrlGet: Err. Illigal counter number \n")));
230        return MV_BAD_PARAM;;
231    }
232
233    /* read control register */
234    cntmrCtrl = MV_REG_READ(CNTMR_CTRL_REG);
235
236    /* enable counter\timer */
237    if (cntmrCtrl & CTCR_ARM_TIMER_EN(countNum))
238    {
239        pCtrl->enable = MV_TRUE;
240    }
241    else
242    {
243        pCtrl->enable = MV_FALSE;
244    }
245
246    /* counter mode */
247    if (cntmrCtrl & CTCR_ARM_TIMER_AUTO_EN(countNum))
248    {
249        pCtrl->autoEnable = MV_TRUE;
250    }
251    else
252    {
253        pCtrl->autoEnable = MV_FALSE;
254    }
255
256    return MV_OK;
257}
258
259/*******************************************************************************
260* mvCntmrEnable -
261*
262* DESCRIPTION:
263* Set the Enable-Bit to logic '1' ==> starting the counter
264*
265* INPUT:
266* countNum - counter number
267*
268* OUTPUT:
269* None.
270*
271* RETURN:
272* MV_BAD_PARAM on bad parameters , MV_ERROR on error ,MV_OK on sucess
273*******************************************************************************/
274MV_STATUS mvCntmrEnable(MV_U32 countNum)
275{
276    MV_U32 cntmrCtrl;
277
278    if (countNum >= MV_CNTMR_MAX_COUNTER )
279    {
280
281        DB(mvOsPrintf(("mvCntmrEnable: Err. Illigal counter number \n")));
282        return MV_BAD_PARAM;;
283
284    }
285
286    /* read control register */
287    cntmrCtrl = MV_REG_READ(CNTMR_CTRL_REG);
288
289    /* enable counter\timer */
290    cntmrCtrl |= CTCR_ARM_TIMER_EN(countNum);
291
292
293    MV_REG_WRITE(CNTMR_CTRL_REG,cntmrCtrl);
294
295    return MV_OK;
296}
297
298/*******************************************************************************
299* mvCntmrDisable -
300*
301* DESCRIPTION:
302* Stop the counter/timer running, and returns its Value
303*
304* INPUT:
305* countNum - counter number
306*
307* OUTPUT:
308* None.
309*
310* RETURN:
311* MV_U32 counter\timer value
312*******************************************************************************/
313MV_STATUS mvCntmrDisable(MV_U32 countNum)
314{
315    MV_U32 cntmrCtrl;
316
317    if (countNum >= MV_CNTMR_MAX_COUNTER )
318    {
319
320        DB(mvOsPrintf(("mvCntmrDisable: Err. Illigal counter number \n")));
321        return MV_BAD_PARAM;;
322
323    }
324
325    /* read control register */
326    cntmrCtrl = MV_REG_READ(CNTMR_CTRL_REG);
327
328    /* disable counter\timer */
329    cntmrCtrl &= ~CTCR_ARM_TIMER_EN(countNum);
330
331    MV_REG_WRITE(CNTMR_CTRL_REG,cntmrCtrl);
332
333    return MV_OK;
334}
335
336/*******************************************************************************
337* mvCntmrStart -
338*
339* DESCRIPTION:
340* Combined all the sub-operations above to one function: Load,setMode,Enable
341*
342* INPUT:
343* countNum - counter number
344* value - value of the counter\timer to be set
345* pCtrl - pointer to MV_CNTMR_CTRL structure
346*
347* OUTPUT:
348* None.
349*
350* RETURN:
351* MV_BAD_PARAM on bad parameters , MV_ERROR on error ,MV_OK on sucess
352*******************************************************************************/
353MV_STATUS mvCntmrStart(MV_U32 countNum, MV_U32 value,
354                       MV_CNTMR_CTRL *pCtrl)
355{
356
357    if (countNum >= MV_CNTMR_MAX_COUNTER )
358    {
359
360        mvOsPrintf(("mvCntmrDisable: Err. Illigal counter number \n"));
361        return MV_BAD_PARAM;;
362
363    }
364
365    /* load value onto counter\timer */
366    mvCntmrLoad(countNum,value);
367
368    /* set the counter to load in the first time */
369    mvCntmrWrite(countNum,value);
370
371    /* set control for timer \ cunter and enable */
372    mvCntmrCtrlSet(countNum,pCtrl);
373
374    return MV_OK;
375}
376
377

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