target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/mv_hal/gpp/mvGpp.c

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  53 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  54 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  55 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  56 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  57 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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  60 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  61 SOFTWARE, 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
  74 static 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 *******************************************************************************/
  99 MV_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 *******************************************************************************/
 143 MV_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 *******************************************************************************/
 179 MV_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 *******************************************************************************/
 214 MV_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 *******************************************************************************/
 250 MV_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 *******************************************************************************/
 286 MV_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 *******************************************************************************/
 349 static 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