FreeCalypso > hg > fc-magnetite
annotate src/cs/layer1/gtt_include/ctm/conv_encoder.h @ 629:3231dd9b38c1
armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets
Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively,
and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code
for C-Sample and earlier turns them into GPIOs configured as outputs also
driving 1 - so far, so good - but TI's code for BOARD 41 (which covers
D-Sample, Leonardo and all real world Calypso devices derived from the
latter) switches them from MCUEN to GPIOs, but then leaves them as inputs.
Given that the hardware powerup state of these two pins is outputs driving 1,
every Calypso board design MUST be compatible with such driving; typically
these GPIO signals will be either unused and unconnected or connected as
outputs driving some peripheral. Turning these pins into GPIO inputs will
result in floating inputs on every reasonably-wired board, thus I am
convinced that this configuration is nothing but a bug on the part of
whoever wrote this code at TI.
This floating input bug had already been fixed earlier for GTA modem and
FCDEV3B targets; the present change makes the fix unconditional for all
"classic" targets. The newly affected targets are D-Sample, Leonardo,
Tango and GTM900.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 02 Jan 2020 05:38:26 +0000 |
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1 /* |
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2 ******************************************************************************* |
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3 * |
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH |
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5 * |
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6 * The program(s) may be used and/or copied only with the |
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7 * written permission from Ericsson or in accordance |
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8 * with the terms and conditions stipulated in the agreement or |
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9 * contract under which the program(s) have been supplied. |
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10 * |
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11 ******************************************************************************* |
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12 * |
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13 * File : conv_encoder.h |
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14 * Purpose : Header file for conv_encoder.c |
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15 * Author : Francisco Javier Gil Gomez |
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16 * |
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17 ******************************************************************************* |
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18 * |
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19 * Changes since October 13, 2000: |
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20 * - added reset function conv_encoder_reset() |
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21 * |
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22 ******************************************************************************* |
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23 * $Id: $ |
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24 * |
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25 */ |
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26 |
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27 |
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28 #ifndef conv_encoder_h |
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29 #define conv_encoder_h "$Id: $" |
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30 |
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31 #include "conv_poly.h" /* definition of encoder_t */ |
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32 |
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33 /***********************************************************************/ |
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34 /* conv_encoder_init() */ |
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35 /* ******************* */ |
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36 /* Initialization of the convolutional encoder. */ |
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37 /* */ |
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38 /* output variables: */ |
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39 /* *ptr_state Initialized state variable of the encoder */ |
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40 /***********************************************************************/ |
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41 |
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42 void conv_encoder_init(conv_encoder_t* ptr_state); |
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43 |
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44 void conv_encoder_reset(conv_encoder_t* ptr_state); |
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45 |
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46 /***********************************************************************/ |
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47 /* conv_encoder_exec() */ |
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48 /* ******************* */ |
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49 /* Execution of the convolutional encoder */ |
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50 /* */ |
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51 /* input variables: */ |
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52 /* in Vector with net bits */ |
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53 /* inbits Number of valid net bits in vector in. */ |
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54 /* */ |
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55 /* output variables: */ |
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56 /* out Vector with the encoded gross bits. The gross */ |
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57 /* bits are either 0 or 1. The vector out must */ |
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58 /* have at least CHC_RATE*inbits elements. */ |
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59 /* */ |
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60 /* input/output variables: */ |
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61 /* *ptr_state State variable of the encoder */ |
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62 /* */ |
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63 /***********************************************************************/ |
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64 |
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65 void conv_encoder_exec(conv_encoder_t* ptr_state, |
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66 WORD16* in, |
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67 WORD16 inbits, |
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68 WORD16* out); |
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69 |
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70 #endif |