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annotate gsm-fw/lldbg/ns16550.h @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents f5affe83ba2d
children
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1 #ifndef __NS16550_H
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2 #define __NS16550_H
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3
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4 /* NS16550 registers */
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5 #define NS16550_RBR 0
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6 #define NS16550_THR 0
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7 #define NS16550_IER 1
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8 #define NS16550_IIR 2
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9 #define NS16550_FCR 2
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10 #define NS16550_LCR 3
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11 #define NS16550_MCR 4
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12 #define NS16550_LSR 5
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13 #define NS16550_MSR 6
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14 #define NS16550_SCR 7
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15 #define NS16550_DLL 0
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16 #define NS16550_DLM 1
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17
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18 #ifndef __ASSEMBLER__
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19 #include "types.h"
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20
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21 struct ns16550_regs {
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22 u8 datareg;
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23 u8 ier;
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24 u8 iir_fcr;
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25 u8 lcr;
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26 u8 mcr;
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27 u8 lsr;
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28 u8 msr;
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29 u8 scr;
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30 };
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31 #endif
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32
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33 /* IER bits */
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34 #define NS16550_IER_EDSSI 0x08
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35 #define NS16550_IER_ELSI 0x04
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36 #define NS16550_IER_ETBEI 0x02
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37 #define NS16550_IER_ERBFI 0x01
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38
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39 /* IIR bits */
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40 #define NS16550_IIR_FIFOEN 0xC0
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41 #define NS16550_IIR_INTID 0x0E
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42 #define NS16550_IIR_INT_RLS 0x06
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43 #define NS16550_IIR_INT_RDA 0x04
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44 #define NS16550_IIR_INT_CTO 0x0C
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45 #define NS16550_IIR_INT_THRE 0x02
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46 #define NS16550_IIR_INT_MODEM 0x00
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47 #define NS16550_IIR_INTPEND 0x01
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48
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49 /* FCR bits */
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50
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51 #define NS16550_FCR_RXTR 0xC0
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52 #define NS16550_FCR_RXTR_1 0x00
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53 #define NS16550_FCR_RXTR_4 0x40
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54 #define NS16550_FCR_RXTR_8 0x80
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55 #define NS16550_FCR_RXTR_14 0xC0
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56 #define NS16550_FCR_DMAMODE 0x08
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57 #define NS16550_FCR_TXRST 0x04
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58 #define NS16550_FCR_RXRST 0x02
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59 #define NS16550_FCR_FIFOEN 0x01
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60
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61 /* LCR bits */
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62 #define NS16550_LCR_DLAB 0x80
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63 #define NS16550_LCR_BREAK 0x40
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64 #define NS16550_LCR_STICK 0x20
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65 #define NS16550_LCR_EPS 0x10
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66 #define NS16550_LCR_PEN 0x08
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67 #define NS16550_LCR_STB 0x04
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68 #define NS16550_LCR_WLS 0x03
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69 #define NS16550_LCR_WLS_5 0x00
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70 #define NS16550_LCR_WLS_6 0x01
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71 #define NS16550_LCR_WLS_7 0x02
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72 #define NS16550_LCR_WLS_8 0x03
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73
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74 /* MCR bits */
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75 #define NS16550_MCR_LOOP 0x10
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76 #define NS16550_MCR_OUT2 0x08
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77 #define NS16550_MCR_OUT1 0x04
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78 #define NS16550_MCR_RTS 0x02
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79 #define NS16550_MCR_DTR 0x01
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80
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81 /* LSR bits */
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82 #define NS16550_LSR_ERR 0x80
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83 #define NS16550_LSR_TEMP 0x40
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84 #define NS16550_LSR_THRE 0x20
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85 #define NS16550_LSR_BI 0x10
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86 #define NS16550_LSR_FE 0x08
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87 #define NS16550_LSR_PE 0x04
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88 #define NS16550_LSR_OE 0x02
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89 #define NS16550_LSR_DR 0x01
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90
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91 /* MSR bits */
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92 #define NS16550_MSR_DCD 0x80
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93 #define NS16550_MSR_RI 0x40
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94 #define NS16550_MSR_DSR 0x20
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95 #define NS16550_MSR_CTS 0x10
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96 #define NS16550_MSR_DDCD 0x08
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97 #define NS16550_MSR_TERI 0x04
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98 #define NS16550_MSR_DDSR 0x02
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99 #define NS16550_MSR_DCTS 0x01
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100
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101 #endif /* __NS16550_H */