Root/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/gpp/mvGpp.c

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61SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62
63*******************************************************************************/
64
65#include "gpp/mvGpp.h"
66#include "ctrlEnv/mvCtrlEnvLib.h"
67/* defines */
68#ifdef MV_DEBUG
69    #define DB(x) x
70#else
71    #define DB(x)
72#endif
73
74static MV_VOID gppRegSet(MV_U32 group, MV_U32 regOffs,MV_U32 mask,MV_U32 value);
75
76/*******************************************************************************
77* mvGppTypeSet - Enable a GPP (OUT) pin
78*
79* DESCRIPTION:
80*
81* INPUT:
82* group - GPP group number
83* mask - 32bit mask value. Each set bit in the mask means that the type
84* of corresponding GPP will be set. Other GPPs are ignored.
85* value - 32bit value that describes GPP type per pin.
86*
87* OUTPUT:
88* None.
89*
90* EXAMPLE:
91* Set GPP8 to input and GPP15 to output.
92* mvGppTypeSet(0, (GPP8 | GPP15),
93* ((MV_GPP_IN & GPP8) | (MV_GPP_OUT & GPP15)) );
94*
95* RETURN:
96* None.
97*
98*******************************************************************************/
99MV_STATUS mvGppTypeSet(MV_U32 group, MV_U32 mask, MV_U32 value)
100{
101    if (group >= MV_GPP_MAX_GROUP)
102    {
103        DB(mvOsPrintf("mvGppTypeSet: ERR. invalid group number \n"));
104        return MV_BAD_PARAM;
105    }
106
107    gppRegSet(group, GPP_DATA_OUT_EN_REG(group), mask, value);
108
109    /* Workaround for Erratum FE-MISC-70*/
110    if(mvCtrlRevGet()==MV_88F6XXX_A0_REV && (group == 1))
111    {
112        mask &= 0x2;
113        gppRegSet(0, GPP_DATA_OUT_EN_REG(0), mask, value);
114    } /*End of WA*/
115
116    return MV_OK;
117
118}
119
120/*******************************************************************************
121* mvGppBlinkEn - Set a GPP (IN) Pin list to blink every ~100ms
122*
123* DESCRIPTION:
124*
125* INPUT:
126* group - GPP group number
127* mask - 32bit mask value. Each set bit in the mask means that the type
128* of corresponding GPP will be set. Other GPPs are ignored.
129* value - 32bit value that describes GPP blink per pin.
130*
131* OUTPUT:
132* None.
133*
134* EXAMPLE:
135* Set GPP8 to be static and GPP15 to be blinking.
136* mvGppBlinkEn(0, (GPP8 | GPP15),
137* ((MV_GPP_OUT_STATIC & GPP8) | (MV_GPP_OUT_BLINK & GPP15)) );
138*
139* RETURN:
140* None.
141*
142*******************************************************************************/
143MV_STATUS mvGppBlinkEn(MV_U32 group, MV_U32 mask, MV_U32 value)
144{
145    if (group >= MV_GPP_MAX_GROUP)
146    {
147        DB(mvOsPrintf("mvGppBlinkEn: ERR. invalid group number \n"));
148        return MV_BAD_PARAM;
149    }
150
151    gppRegSet(group, GPP_BLINK_EN_REG(group), mask, value);
152
153    return MV_OK;
154
155}
156/*******************************************************************************
157* mvGppPolaritySet - Set a GPP (IN) Pin list Polarity mode
158*
159* DESCRIPTION:
160*
161* INPUT:
162* group - GPP group number
163* mask - 32bit mask value. Each set bit in the mask means that the type
164* of corresponding GPP will be set. Other GPPs are ignored.
165* value - 32bit value that describes GPP polarity per pin.
166*
167* OUTPUT:
168* None.
169*
170* EXAMPLE:
171* Set GPP8 to the actual pin value and GPP15 to be inverted.
172* mvGppPolaritySet(0, (GPP8 | GPP15),
173* ((MV_GPP_IN_ORIGIN & GPP8) | (MV_GPP_IN_INVERT & GPP15)) );
174*
175* RETURN:
176* None.
177*
178*******************************************************************************/
179MV_STATUS mvGppPolaritySet(MV_U32 group, MV_U32 mask, MV_U32 value)
180{
181    if (group >= MV_GPP_MAX_GROUP)
182    {
183        DB(mvOsPrintf("mvGppPolaritySet: ERR. invalid group number \n"));
184        return MV_BAD_PARAM;
185    }
186
187    gppRegSet(group, GPP_DATA_IN_POL_REG(group), mask, value);
188
189    return MV_OK;
190
191}
192
193/*******************************************************************************
194* mvGppPolarityGet - Get a value of relevant bits from GPP Polarity register.
195*
196* DESCRIPTION:
197*
198* INPUT:
199* group - GPP group number
200* mask - 32bit mask value. Each set bit in the mask means that the
201* returned value is valid for it.
202*
203* OUTPUT:
204* None.
205*
206* EXAMPLE:
207* Get GPP8 and GPP15 value.
208* mvGppPolarityGet(0, (GPP8 | GPP15));
209*
210* RETURN:
211* 32bit value that describes GPP polatity mode per pin.
212*
213*******************************************************************************/
214MV_U32 mvGppPolarityGet(MV_U32 group, MV_U32 mask)
215{
216    MV_U32 regVal;
217
218      if (group >= MV_GPP_MAX_GROUP)
219    {
220        DB(mvOsPrintf("mvGppActiveSet: Error invalid group number \n"));
221        return MV_ERROR;
222    }
223    regVal = MV_REG_READ(GPP_DATA_IN_POL_REG(group));
224    
225    return (regVal & mask);
226}
227
228/*******************************************************************************
229* mvGppValueGet - Get a GPP Pin list value.
230*
231* DESCRIPTION:
232* This function get GPP value.
233*
234* INPUT:
235* group - GPP group number
236* mask - 32bit mask value. Each set bit in the mask means that the
237* returned value is valid for it.
238*
239* OUTPUT:
240* None.
241*
242* EXAMPLE:
243* Get GPP8 and GPP15 value.
244* mvGppValueGet(0, (GPP8 | GPP15));
245*
246* RETURN:
247* 32bit value that describes GPP activity mode per pin.
248*
249*******************************************************************************/
250MV_U32 mvGppValueGet(MV_U32 group, MV_U32 mask)
251{
252    MV_U32 gppData;
253
254    gppData = MV_REG_READ(GPP_DATA_IN_REG(group));
255
256    gppData &= mask;
257
258    return gppData;
259
260}
261
262/*******************************************************************************
263* mvGppValueSet - Set a GPP Pin list value.
264*
265* DESCRIPTION:
266* This function set value for given GPP pin list.
267*
268* INPUT:
269* group - GPP group number
270* mask - 32bit mask value. Each set bit in the mask means that the
271* value of corresponding GPP will be set accordingly. Other GPP
272* are not affected.
273* value - 32bit value that describes GPP value per pin.
274*
275* OUTPUT:
276* None.
277*
278* EXAMPLE:
279* Set GPP8 value of '0' and GPP15 value of '1'.
280* mvGppActiveSet(0, (GPP8 | GPP15), ((0 & GPP8) | (GPP15)) );
281*
282* RETURN:
283* None.
284*
285*******************************************************************************/
286MV_STATUS mvGppValueSet (MV_U32 group, MV_U32 mask, MV_U32 value)
287{
288    MV_U32 outEnable, tmp;
289    MV_U32 i;
290
291    if (group >= MV_GPP_MAX_GROUP)
292    {
293        DB(mvOsPrintf("mvGppValueSet: Error invalid group number \n"));
294        return MV_BAD_PARAM;
295    }
296
297    /* verify that the gpp pin is configured as output */
298    /* Note that in the register out enabled -> bit = '0'. */
299    outEnable = ~MV_REG_READ(GPP_DATA_OUT_EN_REG(group));
300
301    /* Workaround for Erratum FE-MISC-70*/
302    if(mvCtrlRevGet()==MV_88F6XXX_A0_REV && (group == 1))
303    {
304        tmp = ~MV_REG_READ(GPP_DATA_OUT_EN_REG(0));
305        outEnable &= 0xfffffffd;
306        outEnable |= (tmp & 0x2);
307    } /*End of WA*/
308
309    for (i = 0 ; i < 32 ;i++)
310    {
311        if (((mask & (1 << i)) & (outEnable & (1 << i))) != (mask & (1 << i)))
312        {
313            mvOsPrintf("mvGppValueSet: Err. An attempt to set output "\
314                       "value to GPP %d in input mode.\n", i);
315            return MV_ERROR;
316        }
317    }
318
319    gppRegSet(group, GPP_DATA_OUT_REG(group), mask, value);
320
321    return MV_OK;
322
323}
324/*******************************************************************************
325* gppRegSet - Set a specific GPP pin on a specific GPP register
326*
327* DESCRIPTION:
328* This function set a specific GPP pin on a specific GPP register
329*
330* INPUT:
331* regOffs - GPP Register offset
332* group - GPP group number
333* mask - 32bit mask value. Each set bit in the mask means that the
334* value of corresponding GPP will be set accordingly. Other GPP
335* are not affected.
336* value - 32bit value that describes GPP value per pin.
337*
338* OUTPUT:
339* None.
340*
341* EXAMPLE:
342* Set GPP8 value of '0' and GPP15 value of '1'.
343* mvGppActiveSet(0, (GPP8 | GPP15), ((0 & GPP8) | (1 & GPP15)) );
344*
345* RETURN:
346* None.
347*
348*******************************************************************************/
349static MV_VOID gppRegSet (MV_U32 group, MV_U32 regOffs,MV_U32 mask,MV_U32 value)
350{
351    MV_U32 gppData;
352
353    gppData = MV_REG_READ(regOffs);
354
355    gppData &= ~mask;
356
357    gppData |= (value & mask);
358
359    MV_REG_WRITE(regOffs, gppData);
360}
361
362
363

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