FreeCalypso > hg > freecalypso-citrine

annotate bsp/armio.c @ 49:908742e46a7f default tip

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README: FC Selenite updates
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 Apr 2020 21:55:22 +0000
parents 75a11d740a02
children
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * ARMIO.C
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3 *
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4 *
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5 * Control diagnostic bits
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6 *
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7 * Reference : GCS207
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8 *
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9 */
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10
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11
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12 #include "../include/config.h"
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13 #include "../include/sys_types.h"
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15 #include "mem.h"
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16 #include "iq.h"
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17 #include "armio.h"
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18
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19 #if 0
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20 /* FreeCalypso: abb.h hasn't been integrated yet */
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21 #include "abb.h" // for AI_Power function : to be removed, use ABB_Power_Off in abb.c file instead !!!
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22 #endif
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23
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24 #if (CHIPSET != 12)
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25 /*
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26 * AI_EnableBit
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27 *
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28 * Enable ARMIO input/output bit (see CLKM module specification)
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29 */
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30 void AI_EnableBit(int bit)
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31 {
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32 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) |= (1<<bit);
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33 }
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34
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35 /*
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36 * AI_DisableBit
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37 *
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38 * Disable ARMIO input/output bit (see CLKM module specification)
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39 */
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40 void AI_DisableBit(int bit)
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41 {
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42 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) &= ~(1<<bit);
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43 }
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44
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45 #endif /* CHIPSET != 12 */
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46
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47 /*
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48 * AI_SetBit
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49 *
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50 * Switch-on one bit
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51 */
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52 void AI_SetBit(int bit)
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53 {
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54 *((volatile SYS_UWORD16 *) ARMIO_OUT) |= (1<<bit);
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55 }
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56
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57 /*
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58 * AI_ResetBit
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59 *
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60 * Switch-off one bit
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61 */
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62 void AI_ResetBit(int bit)
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63 {
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64 *((volatile SYS_UWORD16 *) ARMIO_OUT) &= ~(1<<bit);
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65 }
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66
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67 /*
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68 * AI_ConfigBitAsOutput
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69 *
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70 * Set this bit as an output
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71 */
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72 void AI_ConfigBitAsOutput(int bit)
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73 {
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74 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) &= ~(1<<bit);
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75 }
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76
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77 /*
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78 * AI_ConfigBitAsInput
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79 *
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80 * Set this bit as an input
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81 */
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82 void AI_ConfigBitAsInput(int bit)
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83 {
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84 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) |= (1<<bit);
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85 }
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86
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87
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88 /*
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89 * AI_ReadBit
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90 *
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91 * Read value in register
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92 */
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93 SYS_BOOL AI_ReadBit(int bit)
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94 {
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95 if ((*((volatile SYS_UWORD16 *) ARMIO_IN)) & (1<<bit))
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96 return (1);
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97 else
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98 return (0);
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99 }
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100
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101 /*
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102 * AI_Power
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103 *
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104 * Switch-on or off the board
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105 *
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106 * Parameters : SYS_UWORD8 power: 1 to power-on (maintain power)
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107 * 0 to power-off
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108 *
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109 */
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110 // #if (!OP_L1_STANDALONE)
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111 #if 0
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112 void AI_Power(SYS_UWORD8 power)
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113 {
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114 if (power == 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 ABB_Power_Off();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 * AI_ResetIoConfig
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 * Reset all default IO configurations
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 void AI_ResetIoConfig(void)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) = 0xFFFF; // all bits are inputs
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 #if (CHIPSET != 12)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) = 0; // default config
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 #endif /* CHIPSET != 12 */
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parents:
diff changeset
133 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 * AI_ClockEnable
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 * Enable ARMIO clock module
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 void AI_ClockEnable(void)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 *((volatile SYS_UWORD16 *) ARMIO_CNTL_REG) |= ARMIO_CLOCKEN; // set to 1 bit 5
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 * The AI_InitIOConfig() function is target-specific.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 #ifdef CONFIG_TARGET_GTAMODEM
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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152 /* version for the Openmoko GTA0x GSM modem */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 void AI_InitIOConfig(void)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 // reset the IOs config
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 AI_ResetIoConfig();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 * The GTA0x Calypso block is a stripped-down version of the Leonardo,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 * reduced to the absolute minimum that is needed for a slave modem.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 * Almost all of the unused interface pins are left unconnected, only
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 * a few are pulled externally to GND or VIO.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 * We handle the unused pins the way TI's code does: configure them
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 * as GPIOs, then as outputs driving a fixed value (high for GPIOs 8+,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 * low for 0-7).
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 /* I'll be brave and turn the unused TSPDI input into a GPIO4 output */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 AI_EnableBit(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 /* Don't want to do that for the IO5 pin though, as it's wired to SIM_IO
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 * through a resistor like on the Leonardo. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 AI_DisableBit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 * The following 2 lines are straight from the Leonardo source: enable
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 * GPIO6 and GPIO8. GPIO6 takes the place of an ancient VEGA3(?) compat
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * pin, and GPIO8 takes the place of MCUEN1 which no Leonardo-based
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 * design seems to use.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 * Note that GPIO7 is not enabled in this version, so that pin retains
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 * its meaning as nRESET_OUT - but it's an unused output, rather than
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 * a floating input, so we are fine.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 AI_EnableBit(2);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 AI_EnableBit(4);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 * The GTA0x modem has no Calypso-interfaced Bluetooth, nor any other
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 * use for MCSI, aka the DSP backdoor interface. So we turn these 4 pins
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 * into GPIOs driving high output state like TI's code does in the
75a11d740a02 initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 * sans-BT configuration.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 AI_EnableBit(5);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 AI_EnableBit(6);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 AI_EnableBit(7);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 AI_EnableBit(8);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 /* ditto for MCUEN2 turned GPIO 13 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 AI_EnableBit(9);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 // ARMIO_OUT register configuration :
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 // set IOs 8,9,10,11,12 and 13 as high
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 // set IOs 0 to 7 as low
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 // Falcon's note: the BP->AP interrupt line gets set low as desired
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F00;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 // ARMIO_CNTL_REG register configuration :
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 // set IOs 0,1,6,8,9,10,11,12 and 13 as outputs.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 // Falcon's addition: set 2, 3 and 4 as outputs too,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 // as they are no-connects on the board.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 AI_ConfigBitAsOutput(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 AI_ConfigBitAsOutput(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 AI_ConfigBitAsOutput(2);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 AI_ConfigBitAsOutput(3);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 AI_ConfigBitAsOutput(4);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 AI_ConfigBitAsOutput(6);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 AI_ConfigBitAsOutput(8);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 AI_ConfigBitAsOutput(9);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 AI_ConfigBitAsOutput(10);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 AI_ConfigBitAsOutput(11);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 AI_ConfigBitAsOutput(12);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 AI_ConfigBitAsOutput(13);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226
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parents:
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227 #ifdef CONFIG_TARGET_FCDEV3B
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parents:
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228 /* version for the to-be-built FCDEV3B board */
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parents:
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229 void AI_InitIOConfig(void)
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parents:
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230 {
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231 // reset the IOs config
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parents:
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232 AI_ResetIoConfig();
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parents:
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233
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234 AI_EnableBit(0);
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235 AI_DisableBit(1);
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236 AI_EnableBit(2);
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237 AI_EnableBit(4);
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parents:
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238
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parents:
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239 /*
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parents:
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240 * The MCSI pins are brought out to a header with the intent of
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parents:
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241 * facilitating experimentation with this interface, so let's put them
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parents:
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242 * into the MCSI configuration.
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parents:
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243 */
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Mychaela Falconia <falcon@freecalypso.org>
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244 AI_DisableBit(5);
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Mychaela Falconia <falcon@freecalypso.org>
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245 AI_DisableBit(6);
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246 AI_DisableBit(7);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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247 AI_DisableBit(8);
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parents:
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248
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249 AI_EnableBit(9);
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parents:
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250
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parents:
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251 // ARMIO_OUT register configuration: same as TI's code sets
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parents:
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252 // the loudspeaker PA is disabled on boot for the time being
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parents:
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253 *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F00;
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254
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255 // ARMIO_CNTL_REG register configuration:
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parents:
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256 // most of the pins are no-connects, make them outputs
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parents:
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257
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parents:
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258 AI_ConfigBitAsOutput(0);
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parents:
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259 AI_ConfigBitAsOutput(1);
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parents:
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260 AI_ConfigBitAsOutput(2);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 AI_ConfigBitAsOutput(4);
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parents:
diff changeset
262 AI_ConfigBitAsOutput(6);
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parents:
diff changeset
263 AI_ConfigBitAsOutput(8);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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264 AI_ConfigBitAsOutput(9);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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265 AI_ConfigBitAsOutput(13);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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266 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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267 #endif
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parents:
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268
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 #ifdef CONFIG_TARGET_PIRELLI
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parents:
diff changeset
270 /* version for Pirelli DP-L10 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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271 void AI_InitIOConfig(void)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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272 {
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parents:
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273 // reset the IOs config
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 AI_ResetIoConfig();
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275
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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276 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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277 * In the case of the Pirelli, our understanding of the hardware
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parents:
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278 * is severely crippled by the lack of schematics and the difficulty of
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 * reverse engineering from steve-m's PCB layer grind-down scans.
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parents:
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280 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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281 * The folllowing ARMIO configuration has been copied from OsmocomBB.
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parents:
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282 */
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parents:
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283 AI_EnableBit(0);
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parents:
diff changeset
284 AI_EnableBit(1);
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parents:
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285 AI_EnableBit(2);
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parents:
diff changeset
286 AI_EnableBit(3);
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parents:
diff changeset
287 AI_EnableBit(4);
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parents:
diff changeset
288 AI_EnableBit(9);
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parents:
diff changeset
289 /* GPIO out all zeros */
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parents:
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290 *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x0000;
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parents:
diff changeset
291 /* setup outputs like OsmocomBB does */
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parents:
diff changeset
292 AI_ConfigBitAsOutput(1);
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parents:
diff changeset
293 AI_ConfigBitAsOutput(4);
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parents:
diff changeset
294 AI_ConfigBitAsOutput(7);
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parents:
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295 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 #endif
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parents:
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297
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 #ifdef CONFIG_TARGET_COMPAL
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parents:
diff changeset
299 /* same for all C1xx variants */
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parents:
diff changeset
300 void AI_InitIOConfig(void)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 // reset the IOs config
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 AI_ResetIoConfig();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 * I don't feel like scrutinizing every Calypso signal on the C139
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 * and C155 schematics right now, so for now we'll use a GPIO
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 * configuration based on OsmocomBB.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 /* GPIO out all zeros */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x0000;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312 /* make GPIOs 1 and 3 outputs */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 AI_ConfigBitAsOutput(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 AI_ConfigBitAsOutput(3);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 * AI_SelectIOForIT
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 * Select which IO will be used to generate an interrupt.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 * 'Edge' specifies if interrup must be detected on falling or rising edge.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 * Warning: parameters are not checked.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 void AI_SelectIOForIT (SYS_UWORD16 Pin, SYS_UWORD16 Edge)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 #if (CHIPSET == 12)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 * Update INTERRUPT_LEVEL_REG with Edge configuration on Pin selection
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 GPIO_INTERRUPT_LEVEL_REG = (Edge & 0x0001) << Pin;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 * Update INTERRUPT_MASK_REG to enable interrupt generation on Pin selection
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 GPIO_INTERRUPT_MASK_REG = 1 << Pin;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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339 #else
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340 /*
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341 * Bit SET_GPIO_EVENT_MODE (bit 0) is set to enable the GPIO event mode.
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342 */
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343
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344 *((volatile SYS_UWORD16 *) ARMIO_GPIO_EVENT_MODE) = (Pin << 1) + (Edge << 5) + 1;
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345 #endif
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346 }
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347
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348 #if (CHIPSET != 12)
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349 /*
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350 * AI_CheckITSource
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351 *
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352 * Check if the interrupt specified by 'Source' is active or not.
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353 *
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354 * Output: 0: IT is not active
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355 * 1: IT is active
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356 *
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357 * Warning: parameters are not checked.
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358 *
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359 * Warning: If the keypad and GPIO interrupts may occur the GPIO interrupt
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360 * must be checked first because the GPIO status bit is reset when
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361 * the register is read.
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362 */
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363
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364 int AI_CheckITSource (SYS_UWORD16 Source)
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365 {
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366 return (*((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_INT) & Source ? 1 : 0);
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367 }
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368
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369 /*
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370 * AI_UnmaskIT
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371 *
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372 * Unmask the IT specified by 'Source' (keyboard or GPIO).
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373 *
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374 * Warning: parameters are not checked.
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375 */
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376
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377 void AI_UnmaskIT (SYS_UWORD16 Source)
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parents:
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378 {
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379 *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) &= ~Source;
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380 }
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381
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382 /*
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parents:
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383 * AI_MaskIT
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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384 *
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parents:
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385 * Mask the IT specified by 'Source' (keyboard or GPIO).
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parents:
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386 *
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parents:
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387 * Warning: parameters are not checked.
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parents:
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388 */
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parents:
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389
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390 void AI_MaskIT (SYS_UWORD16 Source)
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parents:
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391 {
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parents:
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392 *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) |= Source;
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parents:
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393 }
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parents:
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394 #endif /* CHIPSET != 12 */
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parents:
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395
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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396 #if (CHIPSET == 12)
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parents:
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397
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parents:
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398 void AI_MaskIT(SYS_UWORD16 d_io_number) {
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parents:
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399 GPIO_INTERRUPT_MASK_REG |= (1 << d_io_number);
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parents:
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400 } /* f_gpio_mask_it() */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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402 void AI_UnmaskIT(SYS_UWORD16 d_io_number) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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403 GPIO_INTERRUPT_MASK_REG &= ~(1 << d_io_number);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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404 } /* f_gpio_unmask_it() */
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parents:
diff changeset
405
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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406 #endif