FreeCalypso > hg > fc-magnetite
annotate src/cs/drivers/drv_app/r2d/board/uwire.c @ 640:16eb1b9640dc
target gtm900 renamed to gtm900mgc2
This change reflects the fact that the build target in question supports
MGC2GSMT hardware only, and will NOT work on other hw that confusing bears
the same end user name of GTM900, neither the LoCosto-based GTM900-C
nor the Calypso-based MG01GSMT that has a different and incompatible RFFE.
If we ever get our hands on a piece of MG01GSMT hw and add support for it,
that other target will be named gtm900mg01.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 31 Jan 2020 00:46:07 +0000 |
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1 /************************************************************************************ |
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2 * uwire.c : contains driver for the uwire HD module * |
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3 * * |
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4 * * |
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5 * Author: Davide Carpegna * |
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6 * * |
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7 * version: 1.0 * |
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8 * * |
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9 * Date: 22/09/2000 * |
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10 * (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved * |
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11 ************************************************************************************/ |
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12 |
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13 #include "rv/general.h" |
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14 #include "r2d/uwire.h" |
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15 #include "rvf/rvf_api.h" |
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16 |
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17 /********************************************************************/ |
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18 /* set the DC input to low for command transmission */ |
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19 /* */ |
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20 /********************************************************************/ |
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21 void set_DC_low(void) |
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22 { |
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23 * (volatile UINT16 *) GPIO_OUT &= ~(0x02); //gpio(1) ->0 |
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24 } |
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25 |
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26 /********************************************************************/ |
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27 /* set the DC input to high for data transmission */ |
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28 /* */ |
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29 /********************************************************************/ |
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30 void set_DC_high(void) |
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31 { |
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32 * (volatile UINT16 *) GPIO_OUT |= 0x02; //gpio(1) ->1 |
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33 } |
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34 |
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35 /********************************************************************/ |
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36 /* transmit commands to the lcd */ |
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37 /* */ |
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38 /********************************************************************/ |
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39 void lcd_transmit_cmd(UINT8 cmd) |
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40 { |
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41 set_DC_low(); |
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42 * (volatile UINT16 *) TDR = cmd <<8; |
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43 * (volatile UINT16 *) CSR |= NB_BITS_WR_8 + CS_CMD + START ; // transmit command data |
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44 while (((* (volatile UINT16 *) CSR) & CSRB) != 0 ); // wait for end of WRITE |
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45 * (volatile UINT16 *) CSR &= ~CS_CMD; // clears Chip Select |
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46 } |
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47 |
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48 /********************************************************************/ |
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49 /* transmit data to the lcd */ |
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50 /* */ |
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51 /********************************************************************/ |
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52 void lcd_transmit_data(UINT8 data) |
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53 { |
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54 set_DC_high(); |
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55 * (volatile UINT16 *) TDR = data <<8; |
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56 * (volatile UINT16 *) CSR |= NB_BITS_WR_8 + CS_CMD + START ; // transmit data |
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57 //while (((* (volatile UINT16 *) CSR) & CSRB) != 0 ); // wait for end of WRITE |
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58 //* (volatile UINT16 *) CSR &= ~CS_CMD; // clears Chip Select |
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59 } |
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60 |
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61 extern BOOLEAN lcd_polling(void) |
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62 { |
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63 if (((* (volatile UINT16 *) CSR) & CSRB) == 0 ) |
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64 { |
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65 * (volatile UINT16 *) CSR &= ~CS_CMD; // clears Chip Select |
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66 return(TRUE); |
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67 } |
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68 else |
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69 return(FALSE); |
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70 } |
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71 |
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72 /********************************************************************/ |
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73 /* initialize the uwire parameters for the lcd */ |
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74 /* */ |
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75 /********************************************************************/ |
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76 void uwire_init_lcd() |
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77 { |
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78 * ( UINT16 *) GPIO_INOUT &= ~(0x0002); // configures gpio(1) in output mode |
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79 |
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80 * ( UINT16 *) CNTL_RST &= ~(0x04); // releases reset_out |
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81 * ( UINT16 *) CNTL_RST |= (0x04); // set reset_out to 0 |
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82 rvf_delay(RVF_MS_TO_TICKS(1)); // waits for 5 ms |
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83 * ( UINT16 *) CNTL_RST &= ~(0x04); // releases reset_out |
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84 |
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85 |
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86 * (volatile UINT16 *) SR1 = CS1_FRQ_FINT_4 ; // F_INT/4 -> 13M/4 = 3.25 Mhz |
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87 * (volatile UINT16 *) SR3 = SR3_CLK_EN; // enables the uwire clock |
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88 * (volatile UINT16 *) CSR = INDEX_CS1; // selects CS1 |
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89 } |
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91 |
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92 |