From 63d5930e80b3949f7200f398d592c07cd87f0618 Mon Sep 17 00:00:00 2001 From: Christian König Date: Sun, 16 May 2010 21:26:27 +0200 Subject: Initial commit --- .gdbinit | 4 + COPYING | 674 ++++++++++++++++++++++++++++++++++++++++++++++++++++ cmd/Makefile | 16 ++ cmd/cec.c | 249 +++++++++++++++++++ hw/cec.brd | Bin 0 -> 18819 bytes hw/cec.ods | Bin 0 -> 22372 bytes hw/cec.pro | 25 ++ hw/cec.sch | Bin 0 -> 98934 bytes lib/Makefile | 20 ++ lib/cec.h | 567 +++++++++++++++++++++++++++++++++++++++++++ lib/commands.c | 120 ++++++++++ lib/device.c | 102 ++++++++ lib/dumper.c | 435 +++++++++++++++++++++++++++++++++ lib/msp430.c | 152 ++++++++++++ msp430/.gdbinit | 4 + msp430/Makefile | 36 +++ msp430/buffer.h | 103 ++++++++ msp430/cec.h | 220 +++++++++++++++++ msp430/cec_pin.h | 82 +++++++ msp430/cec_state.h | 41 ++++ msp430/cec_timing.h | 113 +++++++++ msp430/i2c.h | 369 ++++++++++++++++++++++++++++ msp430/main.c | 52 ++++ 23 files changed, 3384 insertions(+) create mode 100644 .gdbinit create mode 100644 COPYING create mode 100644 cmd/Makefile create mode 100644 cmd/cec.c create mode 100644 hw/cec.brd create mode 100644 hw/cec.ods create mode 100644 hw/cec.pro create mode 100644 hw/cec.sch create mode 100644 lib/Makefile create mode 100644 lib/cec.h create mode 100644 lib/commands.c create mode 100644 lib/device.c create mode 100644 lib/dumper.c create mode 100644 lib/msp430.c create mode 100644 msp430/.gdbinit create mode 100644 msp430/Makefile create mode 100644 msp430/buffer.h create mode 100644 msp430/cec.h create mode 100644 msp430/cec_pin.h create mode 100644 msp430/cec_state.h create mode 100644 msp430/cec_timing.h create mode 100644 msp430/i2c.h create mode 100644 msp430/main.c diff --git a/.gdbinit b/.gdbinit new file mode 100644 index 0000000..1a44018 --- /dev/null +++ b/.gdbinit @@ -0,0 +1,4 @@ +target remote localhost:2000 +monitor erase all +load +monitor reset diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/cmd/Makefile b/cmd/Makefile new file mode 100644 index 0000000..de0d4d8 --- /dev/null +++ b/cmd/Makefile @@ -0,0 +1,16 @@ +NAME = cec +OBJECTS = cec.o +HEADERS = ../lib/cec.h + +CFLAGS = -Wall -g -I ../lib -L ../lib +LDFLAGS = -l cec + +.PHONY: all + +all: ${NAME} + +${NAME}: ${OBJECTS} + $(CC) ${CFLAGS} ${OBJECTS} ${LDFLAGS} -o ${NAME} + +clean: + rm -f ${NAME} ${OBJECTS} diff --git a/cmd/cec.c b/cmd/cec.c new file mode 100644 index 0000000..e68a944 --- /dev/null +++ b/cmd/cec.c @@ -0,0 +1,249 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include +#include +#include +#include + +#include + +struct CEC_Device device; + +static const char* hw_device = "/dev/i2c-1"; + +const char* usage = +"Usage: %s [commands]\n" +"-msp430 : use device as i2c device\n" +" -phys : use physical addr ?.?.?.?\n" +" -src : use specified logical source addr\n" +" -addr : run logical addr allocation algo\n" +" -ping : ping addr\n" +" -standby : put device into standby mode\n" +" -abort : send abort command and wait for response\n" +" -audio-status : send 'give audio status' and wait for response\n" +" -audio-mode : set system audio mode\n" +" -scan : scan for active devices\n" +" -dump : dump received cec packets\n" +" -active : send Active Source packet\n" +" -decode ... : decode cec packet\n" +" -button : simulate a button press\n" +"\n\n"; + +static void debug(enum CEC_Debug reason, struct CEC_Device* device, struct CEC_Packet* packet) +{ + switch(reason) { + case CEC_RX_Packet: + fprintf(stderr, "received "); + break; + + case CEC_TX_Sucess: + fprintf(stderr, "succeeded "); + break; + + case CEC_TX_Failure: + fprintf(stderr, "failed "); + break; + } + CEC_Dump_Packet(stderr, packet); + fprintf(stderr, "\n"); +} + +void print_help(const char* progname, const char* message) +{ + if (message != NULL) fprintf(stderr, "%s\n", message); + fprintf(stderr, usage, progname); +} + +uint8_t parse_addr(int* i, int argc, const char* argv[]) +{ + if (++(*i) == argc || !strncmp("-", argv[*i], 1)) { + print_help(argv[0], "can't parse addr"); + exit(1); + } + return strtol(argv[*i], NULL, 0); +} + +uint8_t parse_byte(int* i, int argc, const char* argv[]) +{ + if (++(*i) == argc || !strncmp("-", argv[*i], 1)) { + print_help(argv[0], "can't parse byte"); + exit(1); + } + return strtol(argv[*i], NULL, 0); +} + +int parse_int(int* i, int argc, const char* argv[]) +{ + if (++(*i) == argc || !strncmp("-", argv[*i], 1)) { + print_help(argv[0], "can't parse int"); + exit(1); + } + return strtol(argv[*i], NULL, 0); +} + +enum CEC_Device_Type parse_device_type(int* i, int argc, const char* argv[]) +{ + if (++(*i) != argc) { + if (!strncasecmp("TV", argv[*i], 3)) { + return CEC_TV; + } else if (!strncasecmp("Recorder", argv[*i], 10)) { + return CEC_Recording_Device; + + } else if (!strncasecmp("Tuner", argv[*i], 6)) { + return CEC_Tuner; + + } else if (!strncasecmp("Player", argv[*i], 9)) { + return CEC_Playback_Device; + + } else if (!strncasecmp("Audio", argv[*i], 6)) { + return CEC_Audio_System; + } + } + print_help(argv[0], "can't parse device type"); + exit(1); +} + +struct CEC_Physical_Address parse_physical(int* i, int argc, const char* argv[]) +{ + if (++(*i) == argc || !strncmp("-", argv[*i], 1)) { + print_help(argv[0], "can't parse physical address"); + exit(1); + } + + int a,b,c,d; + if(sscanf(argv[*i], "%i.%i.%i.%i", &a, &b, &c, &d) != 4) { + print_help(argv[0], "can't parse physical address"); + exit(1); + } + + struct CEC_Physical_Address addr = { + .a = a, + .b = b, + .c = c, + .d = d + }; + return addr; +} + +int parse_onoff(int* i, int argc, const char* argv[]) +{ + if (++(*i) != argc) { + if (!strncasecmp("on", argv[*i], 3)) { + return 1; + } else if (!strncasecmp("off", argv[*i], 4)) { + return 0; + } + } + print_help(argv[0], "can't parse on/off"); + exit(1); +} + +void dump() +{ + while(1) { + usleep(10000); + CEC_Receive(&device); + } +} + +void init_device() +{ + CEC_Init_Device(&device); + device.hardware = MSP430_Open_Hardware(hw_device); + device.func_debug = debug; +} + +int main(int argc, const char* argv[]) +{ + int i; + char addr; + + if(argc < 2) { + print_help(argv[0], "Missing argument: please provide a command"); + return 1; + } + + init_device(); + + for(i=1; i +#include + +#pragma pack(push,1) + +enum CEC_Opcode +{ + CEC_Feature_Abort = 0x00, + CEC_Image_View_On = 0x04, + CEC_Tuner_Step_Increment = 0x05, + CEC_Tuner_Step_Decrement = 0x06, + CEC_Tuner_Device_Status = 0x07, + CEC_Give_Tuner_Device_Status = 0x08, + CEC_Record_On = 0x09, + CEC_Record_Status = 0x0A, + CEC_Record_Off = 0x0B, + CEC_Text_View_On = 0x0D, + CEC_Record_TV_Screen = 0x0F, + CEC_Give_Deck_Status = 0x1A, + CEC_Deck_Status = 0x1B, + CEC_Set_Menu_Language = 0x32, + CEC_Clear_Analogue_Timer = 0x33, + CEC_Set_Analogue_Timer = 0x34, + CEC_Timer_Status = 0x35, + CEC_Standby = 0x36, + CEC_Play = 0x41, + CEC_Deck_Control = 0x42, + CEC_Timer_Cleared_Status = 0x43, + CEC_User_Control_Pressed = 0x44, + CEC_User_Control_Released = 0x45, + CEC_Give_OSD_Name = 0x46, + CEC_Set_OSD_Name = 0x47, + CEC_Set_OSD_String = 0x64, + CEC_Set_Timer_Program = 0x67, + CEC_System_Audio_Mode_Request = 0x70, + CEC_Give_Audio_Status = 0x71, + CEC_Set_System_Audio_Mode = 0x72, + CEC_Report_Audio_Status = 0x7A, + CEC_System_Audio_Mode_Status = 0x7E, + CEC_Give_System_Audio_Mode_Status = 0x7D, + CEC_Routing_Change = 0x80, + CEC_Routing_Information = 0x81, + CEC_Active_Source = 0x82, + CEC_Give_Physical_Address = 0x83, + CEC_Report_Physical_Address = 0x84, + CEC_Request_Active_Source = 0x85, + CEC_Set_Stream_Path = 0x86, + CEC_Device_Vendor_ID = 0x87, + CEC_Vendor_Command = 0x89, + CEC_Vendor_Remote_Button_Down = 0x8A, + CEC_Vendor_Remote_Button_Up = 0x8B, + CEC_Give_Device_Vendor_ID = 0x8C, + CEC_Menu_Request = 0x8D, + CEC_Menu_Status = 0x8E, + CEC_Give_Device_Power_Status = 0x8F, + CEC_Report_Power_Status = 0x90, + CEC_Get_Menu_Language = 0x91, + CEC_Select_Analogue_Service = 0x92, + CEC_Select_Digital_Service = 0x93, + CEC_Set_Digital_Timer = 0x97, + CEC_Clear_Digital_Timer = 0x99, + CEC_Set_Audio_Rate = 0x9A, + CEC_Inactive_Source = 0x9D, + CEC_Version = 0x9E, + CEC_Get_Version = 0x9F, + CEC_Vendor_Command_With_ID = 0xA0, + CEC_Clear_External_Timer = 0xA1, + CEC_Set_External_Timer = 0xA2, + CEC_Abort = 0xFF +}; + +enum CEC_Version +{ + CEC_Version_1_1 = 0x00, + CEC_Version_1_2 = 0x01, + CEC_Version_1_2a = 0x02, + CEC_Version_1_3 = 0x03, + CEC_Version_1_3a = 0x04 +}; + +enum CEC_Device_Type +{ + CEC_TV = 0, + CEC_Recording_Device = 1, + CEC_Tuner = 3, + CEC_Playback_Device = 4, + CEC_Audio_System = 5 +}; + +enum CEC_Abort_Reason +{ + CEC_Unrecognized_opcode = 0, + CEC_Not_in_correct_mode_to_respond = 1, + CEC_Cannot_provide_source = 2, + CEC_Invalid_operand = 3, + CEC_Refused = 4 +}; + +enum CEC_Analogue_Broadcast_Type +{ + CEC_Cable = 0x00, + CEC_Satellite = 0x01, + CEC_Terrestrial = 0x02 +}; + +enum CEC_Audio_Rate +{ + CEC_Rate_Control_Off = 0, + CEC_Wide_Standard_Rate = 1, + CEC_Wide_Fast_Rate = 2, + CEC_Wide_Slow_Rate = 3, + CEC_Narrow_Standard_Rate = 4, + CEC_Narrow_Fast_Rate = 5, + CEC_Narrow_Slow_Rate = 6 +}; + +enum CEC_Record_Source_Info +{ + CEC_Recording_currently_selected = 0x01, + CEC_Recording_Digital_Service = 0x02, + CEC_Recording_Analogue_Service = 0x03, + CEC_Recording_External_input = 0x04, + CEC_No_recording_unable_to_record_Digital_Service = 0x05, + CEC_No_recording_unable_to_record_Analogue_Service = 0x06, + CEC_No_recording_unable_to_select_required_service = 0x07, + CEC_No_recording_invalid_External_plug_number = 0x09, + CEC_No_recording_invalid_External_Physical_Address = 0x0A, + CEC_No_recording_CA_system_not_supported = 0x0B, + CEC_No_recording_No_or_Insufficient_CA_Entitlements = 0x0C, + CEC_No_recording_Not_allowed_to_copy_source = 0x0D, + CEC_No_recording_No_further_copies_allowed = 0x0E, + CEC_No_recording_no_media = 0x10, + CEC_No_recording_playing = 0x11, + CEC_No_recording_already_recording = 0x12, + CEC_No_recording_media_protected = 0x13, + CEC_No_recording_no_source_signal = 0x14, + CEC_No_recording_media_problem = 0x15, + CEC_No_recording_not_enough_space_available = 0x16, + CEC_No_recording_Parental_Lock_On = 0x17, + CEC_Recording_terminated_normally = 0x1A, + CEC_Recording_has_already_terminated = 0x1B, + CEC_No_recording_other_reason = 0x1F +}; + +enum CEC_Recording_Sequence +{ + CEC_Sunday = 0x01, + CEC_Monday = 0x02, + CEC_Tuesday = 0x04, + CEC_Wednesday = 0x08, + CEC_Thursday = 0x10, + CEC_Friday = 0x20, + CEC_Saturday = 0x40, + CEC_Once_only = 0x00 +}; + +enum CEC_Broadcast_System +{ + CEC_PAL_BG = 0, + CEC_SECAM_L_ = 1, + CEC_PAL_M = 2, + CEC_NTSC_M = 3, + CEC_PAL_I = 4, + CEC_SECAM_DK = 5, + CEC_SECAM_BG = 6, + CEC_SECAM_L = 7, + CEC_PAL_DK = 8, + CEC_Other_System = 31 +}; + +enum CEC_Deck_Control_Mode +{ + CEC_Cntrl_Wind = 1, + CEC_Cntrl_Rewind = 2, + CEC_Cntrl_Stop = 3, + CEC_Cntrl_Eject = 4 +}; + +enum CEC_Deck_Info +{ + CEC_Info_Play = 0x11, + CEC_Info_Record = 0x12, + CEC_Info_Play_Reverse = 0x13, + CEC_Info_Still = 0x14, + CEC_Info_Slow = 0x15, + CEC_Info_Slow_Reverse = 0x16, + CEC_Info_Fast_Forward = 0x17, + CEC_Info_Fast_Reverse = 0x18, + CEC_Info_No_Media = 0x19, + CEC_Info_Stop = 0x1A, + CEC_Info_Wind = 0x1B, + CEC_Info_Rewind = 0x1C, + CEC_Info_Index_Search_Forward = 0x1D, + CEC_Info_Index_Search_Reverse = 0x1E, + CEC_Info_Other_Status = 0x1F +}; + +enum CEC_Timer_Cleared_Status_Data +{ + CEC_Timer_not_cleared_recording = 0x00, + CEC_Timer_not_cleared_no_matching = 0x01, + CEC_Timer_not_cleared_no_info_available = 0x02, + CEC_Timer_cleared = 0x80 +}; + +enum CEC_Status_Request +{ + CEC_Status_Request_On = 1, + CEC_Status_Request_Off = 2, + CEC_Status_Request_Once = 3 +}; + +enum CEC_Digital_Broadcast_System +{ + CEC_ARIB_generic = 0x00, + CEC_ATSC_generic = 0x01, + CEC_DVB_generic = 0x02, + CEC_ARIB_BS = 0x08, + CEC_ARIB_CS = 0x09, + CEC_ARIB_T = 0x0A, + CEC_ATSC_Cable = 0x10, + CEC_ATSC_Satellite = 0x11, + CEC_ATSC_Terrestrial = 0x12, + CEC_DVB_C = 0x18, + CEC_DVB_S = 0x19, + CEC_DVB_S2 = 0x1A, + CEC_DVB_T = 0x1B +}; + +enum CEC_Display_Control +{ + CEC_Display_for_default_time = 0x00, + CEC_Display_until_cleared = 0x40, + CEC_Clear_previous_message = 0x80 +}; + +enum CEC_UI_Commands +{ + CEC_UI_Select = 0x00, + CEC_UI_Up = 0x01, + CEC_UI_Down = 0x02, + CEC_UI_Left = 0x03, + CEC_UI_Right = 0x04, + CEC_UI_Right_Up = 0x05, + CEC_UI_Right_Down = 0x06, + CEC_UI_Left_Up = 0x07, + CEC_UI_Left_Down = 0x08, + CEC_UI_Root_Menu = 0x09, + CEC_UI_Setup_Menu = 0x0A, + CEC_UI_Contents_Menu = 0x0B, + CEC_UI_Favorite_Menu = 0x0C, + CEC_UI_Exit = 0x0D, + CEC_UI_0 = 0x20, + CEC_UI_1 = 0x21, + CEC_UI_2 = 0x22, + CEC_UI_3 = 0x23, + CEC_UI_4 = 0x24, + CEC_UI_5 = 0x25, + CEC_UI_6 = 0x26, + CEC_UI_7 = 0x27, + CEC_UI_8 = 0x28, + CEC_UI_9 = 0x29, + CEC_UI_Dot = 0x2A, + CEC_UI_Enter = 0x2B, + CEC_UI_Clear = 0x2C, + CEC_UI_Next_Favorite = 0x2F, + CEC_UI_Channel_Up = 0x30, + CEC_UI_Channel_Down = 0x31, + CEC_UI_Previous_Channel = 0x32, + CEC_UI_Sound_Select = 0x33, + CEC_UI_Input_Select = 0x34, + CEC_UI_Display_Information = 0x35, + CEC_UI_Help = 0x36, + CEC_UI_Page_Up = 0x37, + CEC_UI_Page_Down = 0x38, + CEC_UI_Power = 0x40, + CEC_UI_Volume_Up = 0x41, + CEC_UI_Volume_Down = 0x42, + CEC_UI_Mute = 0x43, + CEC_UI_Play = 0x44, + CEC_UI_Stop = 0x45, + CEC_UI_Pause = 0x46, + CEC_UI_Record = 0x47, + CEC_UI_Rewind = 0x48, + CEC_UI_Fast_forward = 0x49, + CEC_UI_Eject = 0x4A, + CEC_UI_Forward = 0x4B, + CEC_UI_Backward = 0x4C, + CEC_UI_Stop_Record = 0x4D, + CEC_UI_Pause_Record = 0x4E, + CEC_UI_Angle = 0x50, + CEC_UI_Sub_picture = 0x51, + CEC_UI_Video_on_Demand = 0x52, + CEC_UI_Electronic_Program_Guide = 0x53, + CEC_UI_Timer_Programming = 0x54, + CEC_UI_Initial_Configuration = 0x55, + CEC_UI_Play_Function = 0x60, + CEC_UI_Pause_Play_Function = 0x61, + CEC_UI_Record_Function = 0x62, + CEC_UI_Pause_Record_Function = 0x63, + CEC_UI_Stop_Function = 0x64, + CEC_UI_Mute_Function = 0x65, + CEC_UI_Restore_Volume_Function = 0x66, + CEC_UI_Tune_Function = 0x67, + CEC_UI_Select_Media_Function = 0x68, + CEC_UI_Select_AV_Input_Function = 0x69, + CEC_UI_Select_Audio_Input = 0x6A, + CEC_UI_Power_Toggle_Function = 0x6B, + CEC_UI_Power_Off_Function = 0x6C, + CEC_UI_Power_On_Function = 0x6D, + CEC_UI_F1 = 0x71, + CEC_UI_F2 = 0x72, + CEC_UI_F3 = 0x73, + CEC_UI_F4 = 0x74, + CEC_UI_F5 = 0x75, + CEC_UI_Data = 0x76, +}; + +enum CEC_Power_Status +{ + CEC_Power_Status_On = 0x00, + CEC_Power_Status_Standby = 0x01, + CEC_Transition_Standby_to_On = 0x02, + CEC_Transition_On_to_Standby = 0x03 +}; + +struct CEC_Audio_Status +{ + uint8_t volume_status:7; + uint8_t mute_status:1; +}; + +struct CEC_Physical_Address +{ + uint8_t b:4; + uint8_t a:4; + uint8_t d:4; + uint8_t c:4; +}; + +struct CEC_Record_Source +{ +}; + +struct CEC_Time +{ + uint8_t hour; + uint8_t minute; +}; + +struct CEC_Digital_SI +{ + uint8_t digital_broadcast_system:7; + uint8_t service_identification_method:1; + union + { + struct + { + uint16_t transport_stream_id; + uint16_t service_id; + uint16_t original_network_id; + } arib; + struct + { + uint16_t transport_stream_id; + uint16_t program_number; + } atsc; + struct + { + uint16_t transport_stream_id; + uint16_t service_id; + uint16_t original_network_id; + } dvb; + uint16_t channel_identifier; + }; +}; + +struct CEC_Analogue_SI +{ + uint8_t analogue_broadcast_type; + uint16_t analogue_frequency; + uint8_t broadcast_system; +}; + +struct CEC_External_SI +{ + uint8_t external_source_specifier; + union + { + uint8_t external_plug; + struct CEC_Physical_Address external_physical_address; + }; +}; + +struct CEC_Tuner_Device_Info +{ + uint8_t tuner_display_info:7; + uint8_t recording_flag:1; + union + { + struct CEC_Analogue_SI analogue_service; + struct CEC_Digital_SI digital_service; + }; +}; + +struct CEC_Timer +{ + uint8_t day_of_month; + uint8_t month_of_year; + struct CEC_Time start_time; + struct CEC_Time duration; + uint8_t recording_sequence; +}; + +struct CEC_Timer_Status_Data +{ + uint8_t info:4; + uint8_t programmed:1; + uint8_t media_info:2; + uint8_t timer_overlap_warning:1; + struct CEC_Time duration; +}; + +struct CEC_Packet +{ + uint8_t length; + uint8_t dst:4; + uint8_t src:4; + uint8_t opcode; + union + { + uint8_t raw_data[14]; + uint8_t record_status; + uint8_t timer_cleared_status_data; + uint8_t version; + uint8_t deck_control_mode; + uint8_t deck_info; + uint8_t status_request; + uint8_t play_mode; + uint8_t menu_request_type; + uint8_t menu_status; + uint8_t ui_command; + uint8_t power_status; + uint8_t system_audio_mode_status; + uint8_t audio_rate; + + char string[14]; + char language[3]; + + struct + { + uint8_t vendor_id[3]; + uint8_t vendor_specific_data[11]; + }; + + struct + { + uint8_t display_control; + char display_string[13]; + }; + + struct + { + struct CEC_Timer timer; + union + { + struct CEC_Digital_SI digital_timer; + struct CEC_Analogue_SI analogue_timer; + struct CEC_External_SI external_timer; + }; + }; + + struct + { + struct CEC_Physical_Address physical_address; + union + { + struct CEC_Physical_Address physical_address_2; + uint8_t device_type; + }; + }; + + struct + { + uint8_t feature_opcode; + uint8_t abort_reason; + }; + + struct + { + uint8_t audio_volume_status:7; + uint8_t audio_mute_status:1; + }; + + struct CEC_Record_Source record_source; + struct CEC_Timer_Status_Data timer_status_data; + struct CEC_Digital_SI digital_service; + struct CEC_Analogue_SI analogue_service; + struct CEC_Tuner_Device_Info tuner_device_info; + }; +}; + +struct CEC_Device; + +struct CEC_Hardware +{ + struct CEC_Packet* (*func_receive)(struct CEC_Device* device); + int (*func_transmit)(struct CEC_Device* device, struct CEC_Packet* packet); +}; + +extern struct CEC_Hardware* MSP430_Open_Hardware(const char* device); +extern void MSP430_Close_Hardware(struct CEC_Hardware* hardware); + +enum CEC_Debug +{ + CEC_RX_Packet, + CEC_TX_Sucess, + CEC_TX_Failure +}; + +struct CEC_Device +{ + uint8_t logical_address:4; + struct CEC_Physical_Address physical_address; + struct CEC_Hardware* hardware; + + void (*func_debug)(enum CEC_Debug debug, struct CEC_Device* device, struct CEC_Packet* packet); + void (*func_handler[0x100])(struct CEC_Device* device, struct CEC_Packet* packet); +}; + +extern void CEC_Init_Device(struct CEC_Device* device); +extern void CEC_Dump_Packet(FILE* stream, struct CEC_Packet* packet); + +extern void CEC_Receive(struct CEC_Device* device); +extern int CEC_Transmit(struct CEC_Device* device, struct CEC_Packet* packet); + +extern int CEC_TX_Ping(struct CEC_Device* device, uint8_t addr); +extern int CEC_TX_Standby(struct CEC_Device* device, uint8_t addr); +extern int CEC_TX_Abort(struct CEC_Device* device, uint8_t addr); +extern int CEC_TX_Give_Audio_Status(struct CEC_Device* device, uint8_t addr); +extern int CEC_TX_User_Control_Pressed(struct CEC_Device* device, uint8_t addr, enum CEC_UI_Commands command); +extern int CEC_TX_User_Control_Released(struct CEC_Device* device, uint8_t addr); +extern int CEC_TX_Report_Physical_Address(struct CEC_Device* device, enum CEC_Device_Type device_type); +extern int CEC_TX_Active_Source(struct CEC_Device* device); +extern int CEC_TX_Set_System_Audio_Mode(struct CEC_Device* device, int mode); + +extern int CEC_Alloc_Addr(struct CEC_Device* device, enum CEC_Device_Type device_type); + +#pragma pack(pop) + +#endif diff --git a/lib/commands.c b/lib/commands.c new file mode 100644 index 0000000..5076f00 --- /dev/null +++ b/lib/commands.c @@ -0,0 +1,120 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include + +#include "cec.h" + +int CEC_TX_Ping(struct CEC_Device* device, uint8_t addr) +{ + struct CEC_Packet packet = { + .length = 1, + .src = device->logical_address, + .dst = addr + }; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Standby(struct CEC_Device* device, uint8_t addr) +{ + struct CEC_Packet packet = { + .length = 2, + .src = device->logical_address, + .dst = addr, + .opcode = CEC_Standby + }; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Abort(struct CEC_Device* device, uint8_t addr) +{ + struct CEC_Packet packet = { + .length = 2, + .src = device->logical_address, + .dst = addr, + .opcode = CEC_Abort + }; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Give_Audio_Status(struct CEC_Device* device, uint8_t addr) +{ + struct CEC_Packet packet = { + .length = 2, + .src = device->logical_address, + .dst = addr, + .opcode = CEC_Give_Audio_Status + }; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_User_Control_Pressed(struct CEC_Device* device, uint8_t addr, enum CEC_UI_Commands command) +{ + struct CEC_Packet packet = { + .length = 3, + .src = device->logical_address, + .dst = addr, + .opcode = CEC_User_Control_Pressed, + }; + packet.ui_command = command; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_User_Control_Released(struct CEC_Device* device, uint8_t addr) +{ + struct CEC_Packet packet = { + .length = 2, + .src = device->logical_address, + .dst = addr, + .opcode = CEC_User_Control_Released + }; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Report_Physical_Address(struct CEC_Device* device, enum CEC_Device_Type device_type) +{ + struct CEC_Packet packet = { + .length = 5, + .src = device->logical_address, + .dst = 0xF, + .opcode = CEC_Report_Physical_Address + }; + packet.physical_address = device->physical_address; + packet.device_type = device_type; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Active_Source(struct CEC_Device* device) +{ + struct CEC_Packet packet = { + .length = 4, + .src = device->logical_address, + .dst = 0xF, + .opcode = CEC_Active_Source + }; + packet.physical_address = device->physical_address; + return CEC_Transmit(device, &packet); +} + +int CEC_TX_Set_System_Audio_Mode(struct CEC_Device* device, int mode) +{ + struct CEC_Packet packet = { + .length = 3, + .src = device->logical_address, + .dst = 0x5, + .opcode = CEC_Set_System_Audio_Mode + }; + packet.system_audio_mode_status = mode; + return CEC_Transmit(device, &packet); + +} diff --git a/lib/device.c b/lib/device.c new file mode 100644 index 0000000..b0cfb5b --- /dev/null +++ b/lib/device.c @@ -0,0 +1,102 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include +#include +#include + +#include "cec.h" + +static uint16_t device_type_addr[] = { + [CEC_TV] = 0xC001, + [CEC_Recording_Device] = 0x8206, + [CEC_Tuner] = 0x84C8, + [CEC_Playback_Device] = 0x8910, + [CEC_Audio_System] = 0x8020 +}; + +static struct CEC_Physical_Address invalid_addr = { + .a = 0xF, + .b = 0xF, + .c = 0xF, + .d = 0xF +}; + +void CEC_Init_Device(struct CEC_Device* device) +{ + if(!device) return; + + device->logical_address = 0xF; + device->physical_address = invalid_addr; + + device->func_debug = NULL; + + int i; + for(i=0;i<0x100;i++) + device->func_handler[i] = NULL; +} + +void CEC_Receive(struct CEC_Device* device) +{ + if(!device || !device->hardware) return; + if(!device->hardware->func_receive) return; + + struct CEC_Packet* packet = device->hardware->func_receive(device); + if(!packet) return; + + if(device->func_debug) device->func_debug(CEC_RX_Packet, device, packet); + + if(packet->length < 2) return; + + void (*handler)(struct CEC_Device* device, struct CEC_Packet* packet); + handler = device->func_handler[packet->opcode]; + if(handler) handler(device, packet); +} + +int CEC_Transmit(struct CEC_Device* device, struct CEC_Packet* packet) +{ + if(!device || !device->hardware) return 0; + if(!device->hardware->func_transmit) return 0; + + int retransmit, result = 0; + for(retransmit=0; retransmit<5; retransmit++) { + if(device->hardware->func_transmit(device, packet)) { + result = 1; + break; + } + } + if(device->func_debug) { + device->func_debug(result ? CEC_TX_Sucess : CEC_TX_Failure, device, packet); + } + return result; +} + +int CEC_Alloc_Addr(struct CEC_Device* device, enum CEC_Device_Type device_type) +{ + uint16_t allowed = device_type_addr[device_type]; + uint8_t addr; + + if(!memcmp(&device->physical_address, &invalid_addr, sizeof(struct CEC_Physical_Address))) { + device->logical_address = 0xF; + return 0; + } + + for(addr=0; addr<0xF; addr++) { + if(!(allowed & (1 << addr))) continue; + device->logical_address = addr; + if(!CEC_TX_Ping(device, addr)) break; + } + + device->logical_address = addr; + return CEC_TX_Report_Physical_Address(device, device_type); +} diff --git a/lib/dumper.c b/lib/dumper.c new file mode 100644 index 0000000..11e7487 --- /dev/null +++ b/lib/dumper.c @@ -0,0 +1,435 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include +#include + +#include "cec.h" + +static char* opcode_names[0x100] = { + [CEC_Feature_Abort] = "Feature Abort", + [CEC_Image_View_On] = "Image View On", + [CEC_Tuner_Step_Increment] = "Tuner Step Increment", + [CEC_Tuner_Step_Decrement] = "Tuner Step Decrement", + [CEC_Tuner_Device_Status] = "Tuner Device Status", + [CEC_Give_Tuner_Device_Status] = "Give Tuner Device Status", + [CEC_Record_On] = "Record On", + [CEC_Record_Status] = "Record Status", + [CEC_Record_Off] = "Record Off", + [CEC_Text_View_On] = "Text View On", + [CEC_Record_TV_Screen] = "Record TV Screen", + [CEC_Give_Deck_Status] = "Give Deck Status", + [CEC_Deck_Status] = "Deck Status", + [CEC_Set_Menu_Language] = "Set Menu Language", + [CEC_Clear_Analogue_Timer] = "Clear Analogue Timer", + [CEC_Set_Analogue_Timer] = "Set Analogue Timer", + [CEC_Timer_Status] = "Timer Status", + [CEC_Standby] = "Standby", + [CEC_Play] = "Play", + [CEC_Deck_Control] = "Deck Control", + [CEC_Timer_Cleared_Status] = "Timer Cleared Status", + [CEC_User_Control_Pressed] = "User Control Pressed", + [CEC_User_Control_Released] = "User Control Released", + [CEC_Give_OSD_Name] = "Give OSD Name", + [CEC_Set_OSD_Name] = "Set OSD Name", + [CEC_Set_OSD_String] = "Set OSD String", + [CEC_Set_Timer_Program] = "Set Timer Program", + [CEC_System_Audio_Mode_Request] = "System Audio Mode Request", + [CEC_Give_Audio_Status] = "Give Audio Status", + [CEC_Set_System_Audio_Mode] = "Set System Audio Mode", + [CEC_Report_Audio_Status] = "Report Audio Status", + [CEC_System_Audio_Mode_Status] = "System Audio Mode Status", + [CEC_Give_System_Audio_Mode_Status] = "Give System Audio Mode Status", + [CEC_Routing_Change] = "Routing Change", + [CEC_Routing_Information] = "Routing Information", + [CEC_Active_Source] = "Active Source", + [CEC_Give_Physical_Address] = "Give Physical Address", + [CEC_Report_Physical_Address] = "Report Physical Address", + [CEC_Request_Active_Source] = "Request Active Source", + [CEC_Set_Stream_Path] = "Set Stream Path", + [CEC_Device_Vendor_ID] = "Device Vendor ID", + [CEC_Vendor_Command] = "Vendor Command", + [CEC_Vendor_Remote_Button_Down] = "Vendor Remote Button Down", + [CEC_Vendor_Remote_Button_Up] = "Vendor Remote Button Up", + [CEC_Give_Device_Vendor_ID] = "Give Device Vendor ID", + [CEC_Menu_Request] = "Menu Request", + [CEC_Menu_Status] = "Menu Status", + [CEC_Give_Device_Power_Status] = "Give Device Power Status", + [CEC_Report_Power_Status] = "Report Power Status", + [CEC_Get_Menu_Language] = "Get Menu Language", + [CEC_Select_Analogue_Service] = "Select Analogue Service", + [CEC_Select_Digital_Service] = "Select Digital Service", + [CEC_Set_Digital_Timer] = "Set Digital Timer", + [CEC_Clear_Digital_Timer] = "Clear Digital Timer", + [CEC_Set_Audio_Rate] = "Set Audio Rate", + [CEC_Inactive_Source] = "Inactive Source", + [CEC_Version] = "Version", + [CEC_Get_Version] = "Get Version", + [CEC_Vendor_Command_With_ID] = "Vendor Command With ID", + [CEC_Clear_External_Timer] = "Clear External Timer", + [CEC_Set_External_Timer] = "Set External Timer", + [CEC_Abort] = "Abort" +}; + +static char* version_description[0x100] = { + [CEC_Version_1_1] = "1.1", + [CEC_Version_1_2] = "1.2", + [CEC_Version_1_2a] = "1.2a", + [CEC_Version_1_3] = "1.3", + [CEC_Version_1_3a] = "1.3a" +}; + +static char* device_type_description[0x100] = { + [CEC_TV] = "TV", + [CEC_Recording_Device] = "Recording Device", + [CEC_Tuner] = "Tuner", + [CEC_Playback_Device] = "Playback Device", + [CEC_Audio_System] = "Audio System" +}; + +static void Opcode(FILE* stream, const char* prefix, uint8_t opcode) +{ + char* opcode_name = opcode_names[opcode]; + fprintf(stream, " %s: 0x%02X", prefix, opcode); + fprintf(stream, " (%s)", opcode_name ? opcode_name : "unknown"); +} + +static void Physical_Address(FILE* stream, const char* prefix, struct CEC_Physical_Address* addr) +{ + fprintf(stream, " %s:%X.%X.%X.%X", prefix, addr->a, addr->b, addr->c, addr->d); +} + +static void Record_Source(FILE* stream, struct CEC_Record_Source* record_source) +{ + // TODO +} + +static void Record_Status_Info(FILE* stream, uint8_t record_status) +{ + // TODO +} + +static void Timer(FILE* stream, struct CEC_Timer* timer) +{ + fprintf(stream, " day:%02d month:%02d", timer->day_of_month, timer->month_of_year); + fprintf(stream, " start:%02d:%02d", timer->start_time.hour, timer->start_time.minute); + fprintf(stream, " duration:%02d:%02d", timer->duration.hour, timer->duration.minute); + // TODO +} + +static void Analogue_SI(FILE* stream, struct CEC_Analogue_SI* service) +{ + // TODO +} + +static void Digital_SI(FILE* stream, struct CEC_Digital_SI* service) +{ + // TODO +} + +static void External_SI(FILE* stream, struct CEC_External_SI* service) +{ + // TODO +} + +static void String(FILE* stream, char* string, int length) +{ + int i; + fprintf(stream, " "); + for(i=0; ilength, packet->src, packet->dst); + if(packet->length == 1) return; + + Opcode(stream, "opcode", packet->opcode); + + switch(packet->opcode) { + case CEC_Active_Source: + case CEC_Inactive_Source: + case CEC_Routing_Information: + case CEC_Set_Stream_Path: + case CEC_System_Audio_Mode_Request: + Physical_Address(stream, "addr", &packet->physical_address); + break; + + case CEC_Routing_Change: + Physical_Address(stream, "original", &packet->physical_address); + Physical_Address(stream, "new", &packet->physical_address_2); + break; + + case CEC_Record_On: + Record_Source(stream, &packet->record_source); + break; + + case CEC_Record_Status: + Record_Status_Info(stream, packet->record_status); + break; + + case CEC_Clear_Analogue_Timer: + case CEC_Set_Analogue_Timer: + Timer(stream, &packet->timer); + Analogue_SI(stream, &packet->analogue_timer); + break; + + case CEC_Set_Digital_Timer: + case CEC_Clear_Digital_Timer: + Timer(stream, &packet->timer); + Digital_SI(stream, &packet->digital_timer); + break; + + case CEC_Clear_External_Timer: + case CEC_Set_External_Timer: + Timer(stream, &packet->timer); + External_SI(stream, &packet->external_timer); + break; + + case CEC_Set_Timer_Program: + String(stream, packet->string, packet->length-2); + break; + + case CEC_Timer_Cleared_Status: + Timer_Cleared_Status(stream, packet->timer_cleared_status_data); + break; + + case CEC_Timer_Status: + Timer_Status(stream, &packet->timer_status_data); + break; + + case CEC_Version: + Version(stream, packet->version); + break; + + case CEC_Report_Physical_Address: + Physical_Address(stream, "addr", &packet->physical_address); + Device_Type(stream, packet->device_type); + break; + + case CEC_Set_Menu_Language: + Language(stream, packet->language); + break; + + case CEC_Deck_Control: + Deck_Control_Mode(stream, packet->deck_control_mode); + break; + + case CEC_Deck_Status: + Deck_Info(stream, packet->deck_info); + break; + + case CEC_Give_Deck_Status: + case CEC_Give_Tuner_Device_Status: + Status_Request(stream, packet->status_request); + break; + + case CEC_Play: + Play_Mode(stream, packet->play_mode); + break; + + case CEC_Select_Analogue_Service: + Analogue_SI(stream, &packet->analogue_service); + break; + + case CEC_Select_Digital_Service: + Digital_SI(stream, &packet->digital_timer); + break; + + case CEC_Tuner_Device_Status: + Tuner_Device_Info(stream, &packet->tuner_device_info); + break; + + case CEC_Device_Vendor_ID: + Vendor_ID(stream, packet->vendor_id); + break; + + case CEC_Vendor_Command_With_ID: + Vendor_ID(stream, packet->vendor_id); + Hex_Dump(stream, packet->vendor_specific_data, packet->length-5); + break; + + case CEC_Vendor_Remote_Button_Down: + Hex_Dump(stream, packet->raw_data, packet->length-2); + break; + + case CEC_Set_OSD_String: + Display_Control(stream, packet->display_control); + String(stream, packet->display_string, packet->length-1); + break; + + case CEC_Set_OSD_Name: + String(stream, packet->string, packet->length-2); + break; + + case CEC_Menu_Request: + Menu_Request_Type(stream, packet->menu_request_type); + break; + + case CEC_Menu_Status: + Menu_Status(stream, packet->menu_status); + break; + + case CEC_User_Control_Pressed: + UI_Command(stream, packet->ui_command); + break; + + case CEC_Report_Power_Status: + Power_Status(stream, packet->power_status); + break; + + case CEC_Feature_Abort: + Opcode(stream, "feature-opcode", packet->feature_opcode); + Abort_Reason(stream, packet->abort_reason); + break; + + case CEC_Report_Audio_Status: + Audio_Status(stream, packet->audio_mute_status, packet->audio_volume_status); + break; + + case CEC_Set_System_Audio_Mode: + case CEC_System_Audio_Mode_Status: + System_Audio_Mode_Status(stream, packet->system_audio_mode_status); + break; + + case CEC_Set_Audio_Rate: + Audio_Rate(stream, packet->audio_rate); + break; + + default: + Hex_Dump(stream, packet->raw_data, packet->length-2); + } +} diff --git a/lib/msp430.c b/lib/msp430.c new file mode 100644 index 0000000..cf70512 --- /dev/null +++ b/lib/msp430.c @@ -0,0 +1,152 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include +#include +#include +#include + +#include + +#include "cec.h" +#include "../msp430/cec_state.h" + +#define BUFFER_SIZE 32 +#define I2C_ADDR 0x60 + +#define RX_DELAY 10000 +#define TX_BASE_DELAY 4500 +#define TX_BIT_DELAY 2400 +#define TX_RETRY 10 + +struct MSP430_Hardware +{ + struct CEC_Hardware cec; + int i2c; + + int index; + uint8_t buffer[BUFFER_SIZE]; +}; + +static ssize_t Fill_Buffer(struct MSP430_Hardware* hw) +{ + hw->index = 0; + memset(hw->buffer, 0, BUFFER_SIZE); + return read(hw->i2c, hw->buffer, BUFFER_SIZE); +} + +static int Buffer_Empty(struct MSP430_Hardware* hw) +{ + return hw->index < BUFFER_SIZE && ( + hw->buffer[hw->index] == 0 || + hw->buffer[hw->index] == 0xff); +} + +static struct CEC_Packet* Receive(struct CEC_Device* device) +{ + struct MSP430_Hardware* hw = (struct MSP430_Hardware*)device->hardware; + + if(Buffer_Empty(hw)) { + usleep(RX_DELAY); + if(Fill_Buffer(hw) < 0) return NULL; + } + + while(!Buffer_Empty(hw) && hw->buffer[hw->index] > CEC_Bytes_Max) + hw->index++; + + if(!Buffer_Empty(hw)) { + hw->buffer[hw->index] >>= 3; + + void* packet = &(hw->buffer[hw->index]); + hw->index += hw->buffer[hw->index]; + if(hw->index > BUFFER_SIZE) return NULL; + return (struct CEC_Packet*)packet; + } + return NULL; +} + +static int Transmit(struct CEC_Device* device, struct CEC_Packet* packet) +{ + struct MSP430_Hardware* hw = (struct MSP430_Hardware*)device->hardware; + + do { + CEC_Receive(device); + CEC_Receive(device); + } while(!Buffer_Empty(hw)); + + if(write(hw->i2c, ((void*)packet)+1, packet->length) != packet->length) + return 0; + + + int retry; + for(retry=0; retrylength * TX_BIT_DELAY * 10); + + int result = Fill_Buffer(hw); + if(result < 0) continue; + + result = -1; + + int i; + for(i=0;ibuffer[i] == CEC_Transmitted) + result = 1; + else if(hw->buffer[i] > CEC_Bytes_Max) + result = 0; + else if(hw->buffer[i] == 0) + break; + + i += hw->buffer[i]; + } + if(result != -1) return result; + usleep(RX_DELAY); + } + + return 0; +} + +struct CEC_Hardware* MSP430_Open_Hardware(const char* device) +{ + struct MSP430_Hardware* result = malloc(sizeof(struct MSP430_Hardware)); + + if(result == NULL) + return NULL; + + result->cec.func_receive = Receive; + result->cec.func_transmit = Transmit; + + result->i2c = open(device, O_RDWR); + + if(result->i2c < 0) + goto error1; + + if(ioctl(result->i2c, I2C_SLAVE, I2C_ADDR) < 0) + goto error2; + + return &(result->cec); + +error2: + close(result->i2c); + +error1: + free(result); + return NULL; +} + +void MSP430_Close_Hardware(struct CEC_Hardware* hardware) +{ + struct MSP430_Hardware* hw = (struct MSP430_Hardware*)hardware; + close(hw->i2c); + free(hw); +} diff --git a/msp430/.gdbinit b/msp430/.gdbinit new file mode 100644 index 0000000..1a44018 --- /dev/null +++ b/msp430/.gdbinit @@ -0,0 +1,4 @@ +target remote localhost:2000 +monitor erase all +load +monitor reset diff --git a/msp430/Makefile b/msp430/Makefile new file mode 100644 index 0000000..49b9d61 --- /dev/null +++ b/msp430/Makefile @@ -0,0 +1,36 @@ +# makfile configuration +NAME = cec +OBJECTS = main.o +HEADERS = buffer.h cec.h cec_pin.h cec_state.h cec_timing.h i2c.h +CPU = msp430x2012 + +CFLAGS = -mmcu=${CPU} -Os -Wall -g + +#switch the compiler (for the internal make rules) +CC = msp430-gcc + +.PHONY: all debug + +#all should be the first target. it's built when make is run without args +all: ${NAME}.elf ${NAME}.a43 ${NAME}.lst + +debug: ${NAME}.elf + msp430-gdb ${NAME}.elf + +#additional rules for files +${NAME}.elf: ${OBJECTS} + ${CC} -mmcu=${CPU} -o $@ ${OBJECTS} + msp430-size $@ + +${NAME}.a43: ${NAME}.elf + msp430-objcopy -O ihex $^ $@ + +${NAME}.lst: ${NAME}.elf + msp430-objdump -dSt $^ >$@ + +clean: + rm -f ${NAME}.elf ${NAME}.a43 ${NAME}.lst ${OBJECTS} + +main.o: main.c ${HEADERS} +i2c.o: i2c.c ${HEADERS} +cec.o: cec.c ${HEADERS} diff --git a/msp430/buffer.h b/msp430/buffer.h new file mode 100644 index 0000000..a5142ed --- /dev/null +++ b/msp430/buffer.h @@ -0,0 +1,103 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _BUFFER_H_ +#define _BUFFER_H_ + +#define BUFFER_SIZE 32 +#define BUFFER_MASK 0x1F + +typedef int bool; +#define true 1 +#define false 0 + +struct buffer { + uint8_t start; + uint8_t end; + uint8_t write; + + uint8_t data[BUFFER_SIZE]; +}; + +extern struct buffer rx_buf; +extern struct buffer tx_buf; + +static bool buf_empty(struct buffer* buf) +{ + return buf->start == buf->end; +} + +static uint8_t* buf_ptr(struct buffer* buf, uint8_t index) +{ + return &(buf->data[(index >> 3) & BUFFER_MASK]); +} + +static bool buf_get_bit(struct buffer* buf) +{ + uint8_t* ptr = buf_ptr(buf, buf->start++); + bool result = *ptr & 0x80; + *ptr <<= 1; + return result; +} + +static uint8_t buf_get_peak(struct buffer* buf) +{ + return *buf_ptr(buf, buf->start); +} + +static uint8_t buf_get_byte(struct buffer* buf) +{ + uint8_t result = buf_get_peak(buf); + buf->start += 8; + return result; +} + +static inline void buf_put_begin(struct buffer* buf) +{ + buf->write = 0; +} + +static void buf_put_bit(struct buffer* buf, bool bit) +{ + uint8_t* ptr = buf_ptr(buf, buf->end + buf->write + 8); + *ptr <<= 1; + if(bit) *ptr |= 1; + buf->write++; +} + +static inline int buf_put_addr(struct buffer* buf) +{ + return buf->write; +} + +static uint8_t buf_put_head(struct buffer* buf) +{ + return *buf_ptr(buf, buf->end + 8); +} + +static void buf_put_byte(struct buffer* buf, uint8_t byte) +{ + *buf_ptr(buf, buf->end) = byte; + + buf->end += 8; +} + +static void buf_put_done(struct buffer* buf) +{ + buf->write &= BUFFER_MASK << 3; + buf_put_byte(buf, buf->write); + + buf->end += buf->write; +} + +#endif diff --git a/msp430/cec.h b/msp430/cec.h new file mode 100644 index 0000000..318b67f --- /dev/null +++ b/msp430/cec.h @@ -0,0 +1,220 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _CEC_H_ +#define _CEC_H_ + +#include "buffer.h" +#include "cec_state.h" +#include "cec_pin.h" +#include "cec_timing.h" + +#define CEC_BroadcastAddr 0xF +uint8_t CEC_UnicastAddr; + +uint8_t CEC_Count; +bool CEC_IsTxBroadcast; + +enum CEC_State CEC_State; + +static inline bool CEC_IsRxAddrValid() +{ + uint8_t addr = buf_put_head(&rx_buf) & 0xF; + return addr == CEC_UnicastAddr || + addr == CEC_BroadcastAddr; +} + +static inline int CEC_IsRxBroadcast() +{ + uint8_t addr = buf_put_head(&rx_buf) & 0xF; + return addr == CEC_BroadcastAddr; +} + +static inline void CEC_Init() +{ + CEC_State = CEC_Idle; + + CEC_SEL &= CEC_MASK; + + InputHight(); + + /* clear pending interrupt and enable it */ + IntFallingEdge(); + IntClearPending(); + + CEC_IE |= CEC_BIT; + + // Reset timerA + TACTL |= TACLR; +} + +static void CEC_SendMessage() +{ + if(CEC_State == CEC_Idle) { + CEC_Count = buf_get_byte(&tx_buf); + uint8_t addr = buf_get_peak(&tx_buf); + CEC_IsTxBroadcast = (addr & 0xF) == CEC_BroadcastAddr; + + addr >>= 4; + if(addr != CEC_BroadcastAddr) { + CEC_UnicastAddr = addr; + } + Timer1(ARBITATION); + TimerStart(); + } +} + +static void CEC_Restart() +{ + // reset state maschine + CEC_State = CEC_Idle; + + // stop timer + TimerStop(); + + if(!buf_empty(&tx_buf)) CEC_SendMessage(); +} + +static void CEC_LowDuration(unsigned int count) +{ + OutputLow(); + IntClearPending(); + Timer0(count); +} + +interrupt(CEC_INT_VECTOR) IntServiceRoutineCEC() +{ + if(IntSelectedEdge()) { + TimerReset(); + TimerStart(); + + int bit = CEC_IsRxBroadcast(); + switch(CEC_State) { + case CEC_RX_ACK: + //TODO + //bit ^= !CEC_count && CurrentByte(rx_end) == rx_start; + + case CEC_RX_Done: + CEC_LowDuration(bit ? DATA_H_AVG : DATA_L_AVG); + + default: + Timer1(TIMEOUT); + } + + } else { + enum DecodeResult result = TimerDecode(); + if(result == BIT_Start) { + CEC_State = CEC_RX_Data; + buf_put_begin(&rx_buf); + + } else if(result == BIT_OOR) { + buf_put_byte(&rx_buf, CEC_OOR); + CEC_Restart(); + + } else switch(CEC_State++) { + case CEC_Idle: + CEC_State = CEC_Idle; + TimerStop(); + break; + + case CEC_RX_Data: + buf_put_bit(&rx_buf, result); + + int addr = buf_put_addr(&rx_buf); + if(addr == 8 && !CEC_IsRxAddrValid()) { + CEC_Restart(); + + } else if((addr & 7) != 0) { + CEC_State = CEC_RX_Data; + } + break; + + case CEC_RX_EOM: + if(result) CEC_State = CEC_RX_Done; + break; + + case CEC_RX_ACK: + CEC_State = CEC_RX_Data; + break; + + case CEC_RX_Done: + buf_put_done(&rx_buf); + CEC_Restart(); + break; + + case CEC_TX_ACK: + if(result != CEC_IsTxBroadcast) { + buf_put_byte(&rx_buf, CEC_NACK); + CEC_Restart(); + + } else if(CEC_Count == 0) { + buf_put_byte(&rx_buf, CEC_Transmitted); + CEC_Restart(); + + } else { + CEC_State = CEC_TX_Data; + } + break; + + default: + buf_put_byte(&rx_buf, CEC_ARL); + CEC_Restart(); + break; + } + } + + IntClearPending(); + IntToggleEdge(); +} + +interrupt(TIMERA0_VECTOR) IntServiceRoutineTimerA0() +{ + InputHight(); +} + +interrupt(TIMERA1_VECTOR) IntServiceRoutineTimerA1() +{ + TimerReset(); + switch(CEC_State) { + case CEC_Idle: + CEC_State = CEC_TX_Data; + CEC_LowDuration(START_AVG); + Timer1(START_LEN); + return; + + case CEC_TX_Data: + CEC_Count--; + CEC_LowDuration(buf_get_bit(&tx_buf) ? DATA_H_AVG : DATA_L_AVG); + if((CEC_Count & 0x7) == 0) CEC_State = CEC_TX_EOM; + break; + + case CEC_TX_EOM: + CEC_LowDuration(CEC_Count == 0 ? DATA_H_AVG : DATA_L_AVG); + CEC_State = CEC_TX_ACK; + break; + + case CEC_TX_ACK: + CEC_LowDuration(DATA_H_AVG); + IntRisingEdge(); + break; + + default: + buf_put_byte(&rx_buf, CEC_Timeout); + CEC_Restart(); + return; + } + + Timer1(DATA_LEN); +} + +#endif diff --git a/msp430/cec_pin.h b/msp430/cec_pin.h new file mode 100644 index 0000000..f0dbae5 --- /dev/null +++ b/msp430/cec_pin.h @@ -0,0 +1,82 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _CEC_PIN_H_ +#define _CEC_PIN_H_ + +#define CEC_PIN 6 +#define CEC_BIT (1 << CEC_PIN) +#define CEC_MASK (~CEC_BIT) + +#define CEC_IN P2IN +#define CEC_OUT P2OUT +#define CEC_DIR P2DIR +#define CEC_REN P2REN +#define CEC_IFG P2IFG +#define CEC_IES P2IES +#define CEC_IE P2IE +#define CEC_SEL P2SEL +#define CEC_REN P2REN + +#define CEC_INT_VECTOR PORT2_VECTOR + +static inline void InputHight() +{ + /* input direction */ + CEC_DIR &= CEC_MASK; + + /* pull up */ + CEC_OUT |= CEC_BIT; + + /* enable resistor */ + CEC_REN |= CEC_BIT; +} + +static inline void OutputLow() +{ + /* output direction */ + CEC_DIR |= CEC_BIT; + + /* pull down */ + CEC_OUT &= CEC_MASK; + + /* disable resistor */ + CEC_REN &= CEC_MASK; +} + +static inline void IntClearPending() +{ + CEC_IFG &= CEC_MASK; +} + +static inline void IntFallingEdge() +{ + CEC_IES |= CEC_BIT; +} + +static inline void IntRisingEdge() +{ + CEC_IES &= CEC_MASK; +} + +static inline void IntToggleEdge() +{ + CEC_IES ^= CEC_BIT; +} + +static inline uint8_t IntSelectedEdge() +{ + return CEC_IES & CEC_BIT; +} + +#endif diff --git a/msp430/cec_state.h b/msp430/cec_state.h new file mode 100644 index 0000000..0a11554 --- /dev/null +++ b/msp430/cec_state.h @@ -0,0 +1,41 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _CEC_STATE_H_ +#define _CEC_STATE_H_ + +enum CEC_State { + CEC_Idle, + + CEC_RX_Data, + CEC_RX_EOM, + CEC_RX_ACK, + CEC_RX_Done, + + CEC_TX_Data, + CEC_TX_EOM, + CEC_TX_ACK + +}; + +enum CEC_Result { + CEC_Transmitted = 0xF0, + CEC_Timeout = 0xE0, + CEC_OOR = 0xD0, + CEC_NACK = 0xC0, + CEC_ARL = 0xB0, + CEC_Bytes_Max = 0x80 + +}; + +#endif diff --git a/msp430/cec_timing.h b/msp430/cec_timing.h new file mode 100644 index 0000000..9e1ecd9 --- /dev/null +++ b/msp430/cec_timing.h @@ -0,0 +1,113 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _CEC_TIMING_H_ +#define _CEC_TIMING_H_ + +//#define DECODE_USE_HARD_VALUES + +//SMCLK=1.5MHz so everything is based on SMCLK/8=187.5kHz +#define MILLISECONDS(x) ((int)((x)*187.5f)) + +/* values extracted from the HDMI standard */ +#define START_MIN MILLISECONDS(3.5f) +#define START_AVG MILLISECONDS(3.7f) +#define START_MAX MILLISECONDS(3.9f) + +#define START_LEN MILLISECONDS(4.5f) + +#define DATA_H_MIN MILLISECONDS(0.4f) +#define DATA_H_AVG MILLISECONDS(0.6f) +#define DATA_H_MAX MILLISECONDS(0.85f) + +#define DATA_L_MIN MILLISECONDS(1.25f) +#define DATA_L_AVG MILLISECONDS(1.5f) +#define DATA_L_MAX MILLISECONDS(1.7f) + +#define DATA_LEN MILLISECONDS(2.4f) + +#define ARBITATION (DATA_LEN * 7) + +/* not standard values, but usefull */ +#define DATA_TRIGGER ((DATA_H_AVG + DATA_L_AVG) / 2) +#define TIMEOUT MILLISECONDS(5.0f) + +static inline void TimerStart() +{ + TA0CTL = TASSEL_2 | ID_3 | MC_CONT; +} + +static inline void TimerReset() +{ + TA0R = 0; +} + +static inline void TimerStop() +{ + TA0CTL = TASSEL_2 | ID_3 | MC_STOP; + TA0CCTL0 = 0; + TA0CCTL1 = 0; +} + +static inline void Timer0(uint16_t count) +{ + TA0CCR0 = count; + TA0CCTL0 = CCIE; +} + +static inline void Timer1(uint16_t count) +{ + TA0CCR1 = count; + TA0CCTL1 = CCIE; +} + +static enum DecodeResult +{ + BIT_L = 0, + BIT_H = 1, + BIT_Start = 2, + BIT_OOR = 3 + +} inline TimerDecode() +{ + uint16_t count = TA0R; +#ifdef DECODE_USE_HARD_VALUES + if(DATA_L_MIN <= count && count <= DATA_L_MAX) { + return BIT_L; + + } else if(DATA_H_MIN <= count && count <= DATA_H_MAX) { + return BIT_H; + + } else if(START_MIN <= count && count <= START_MAX) { + return BIT_Start; + + } else { + return BIT_OOR; + } +#else + if(count < DATA_TRIGGER) { + return BIT_H; + + } else if(count < START_MIN) { + return BIT_L; + + } else if(count <= START_MAX) { + return BIT_Start; + + } else { + return BIT_OOR; + } +#endif +} + +#endif diff --git a/msp430/i2c.h b/msp430/i2c.h new file mode 100644 index 0000000..511c082 --- /dev/null +++ b/msp430/i2c.h @@ -0,0 +1,369 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#ifndef _I2C_H_ +#define _I2C_H_ + +#include +#include + +#include "buffer.h" +#include "cec.h" + +#define I2C_Addr ((uint8_t)0xC0) + +#define I2C_SDA (1 << 6) +#define I2C_SCL (1 << 7) +#define I2C_BOTH (I2C_SDA | I2C_SCL) + +static enum { + I2C_Idle, + I2C_RX_Addr, + + I2C_TX_Ack_RX, + I2C_RX_Data, + + I2C_TX_Ack_TX, + I2C_TX_Data, + I2C_RX_Ack, + +} I2C_State; + +static inline void I2C_InputHight() +{ + /* input direction */ + P1DIR &= ~I2C_SDA; + + /* pull up */ + P1OUT |= I2C_SDA; + + /* enable resistor */ + P1REN |= I2C_SDA; +} + +static inline void I2C_OutputLow() +{ + /* output direction */ + P1DIR |= I2C_SDA; + + /* pull down */ + P1OUT &= ~I2C_SDA; + + /* disable resistor */ + P1REN &= ~I2C_SDA; +} + +static inline void I2C_Init() +{ + P1IES |= I2C_BOTH; + P1IFG &= ~I2C_BOTH; + P1IE |= I2C_BOTH; +} + +static inline bool I2C_Start(uint8_t ies, uint8_t ifg) +{ + return (ies == I2C_BOTH) && (ifg == I2C_SDA); +} + +static inline bool I2C_Write(uint8_t ies, uint8_t ifg) +{ + return (ies & I2C_SCL) && (ifg == I2C_SCL); +} + +static inline bool I2C_Read(uint8_t ies, uint8_t ifg) +{ + return !(ies & I2C_SCL) && (ifg == I2C_SCL); +} + +static inline bool I2C_Stop(uint8_t ies, uint8_t ifg) +{ + return (ies == I2C_SCL) && (ifg == I2C_SDA); +} + +interrupt(PORT1_VECTOR) IntServiceRoutinePort1() +{ + uint8_t ifg = P1IFG & I2C_BOTH; + uint8_t ies = P1IES & I2C_BOTH; + + P1IFG ^= ifg; + P1IES ^= ifg; + + if(I2C_Start(ies, ifg)) { + I2C_State = I2C_RX_Addr; + buf_put_begin(&tx_buf); + + } else if(I2C_Write(ies, ifg)) { + switch(I2C_State) { + case I2C_TX_Data: + if(buf_empty(&rx_buf) || buf_get_bit(&rx_buf)) { + I2C_InputHight(); + break; + } + + case I2C_TX_Ack_RX: + case I2C_TX_Ack_TX: + I2C_OutputLow(); + break; + + default: + I2C_InputHight(); + break; + } + + } else if(I2C_Read(ies, ifg)) { + switch(I2C_State) { + case I2C_Idle: + break; + + case I2C_RX_Addr: + buf_put_bit(&tx_buf, P1IN & I2C_SDA); + + if(buf_put_addr(&tx_buf) == 8) { + uint8_t addr = buf_put_head(&tx_buf); + + // Address match? if yes send [N]Ack depending on buffer state + if(addr == I2C_Addr) { + buf_put_begin(&tx_buf); + I2C_State = I2C_TX_Ack_RX; + + } else if((addr == (I2C_Addr | 1)) && !buf_empty(&rx_buf)) { + I2C_State = I2C_TX_Ack_TX; + + } else { + // No address match -> ignored + I2C_State = I2C_Idle; + } + } + break; + + case I2C_TX_Ack_RX: + I2C_State = I2C_RX_Data; + break; + + case I2C_RX_Ack: + if(P1IN & I2C_SDA) { + I2C_State = I2C_Idle; + } + + case I2C_TX_Ack_TX: + I2C_State = I2C_TX_Data; + break; + + case I2C_TX_Data: + if((rx_buf.start & 7) == 0) { + I2C_State = I2C_RX_Ack; + } + break; + + case I2C_RX_Data: + buf_put_bit(&tx_buf, P1IN & I2C_SDA); + if(!(buf_put_addr(&tx_buf) & 7)) { + I2C_State = I2C_TX_Ack_RX; + } + break; + } + + } else if(I2C_Stop(ies, ifg)) { + if(I2C_State == I2C_RX_Data) { + buf_put_done(&tx_buf); + CEC_SendMessage(); + } + I2C_State = I2C_Idle; + + } +} + +/*#define I2C_Direction 0x01 +#define I2C_Write 0x00 +#define I2C_Read 0x01 + +uint8_t I2C_Offset; + +static uint8_t TxIndex() +{ + return (tx_end + I2C_Offset + 1) & BUFFER_MASK; +} + +enum { + I2C_Idle = 0x00, + I2C_RX_Addr = 0x01, + + I2C_TX_Ack = 0x02, + I2C_TX_Data = 0x03, + + I2C_RX_Ack = 0x04, + I2C_RX_Data = 0x05 + +} I2C_State; + +static inline void I2C_Init() +{ + // Internal Pullups enable + P1OUT |= 0xC0; + P1REN |= 0xC0; + + P1DIR &= 0xC0; + P1IE |= 0x80; + P1IES &= ~0x80; + P1IFG &= ~0x80; + + // Port & USI mode setup + USICTL0 = USIPE6 | USIPE7 | USISWRST; + + // Set to I2C mode + USICTL1 = USII2C; + + // Setup clock pol + USICKCTL = USICKPL; + + // Disable automatic clear control + USICNT |= USIIFGCC; + + // Enable USI + USICTL0 &= ~USISWRST; + + // Clear Flags + USICTL1 &= ~(USISTP | USIIFG | USISTTIFG); + + // Enable I2C + USICTL1 |= USIIE | USISTTIE; + + I2C_State = I2C_Idle; +} + +static inline void Receive(uint8_t count) +{ + // set bit counter + USICNT |= count; + + // SDA = input + USICTL0 &= ~USIOE; +} + +static void TransmitData() +{ + I2C_State = I2C_TX_Data; + + if(rx_start != rx_end) { + USISRL = rx_buffer[rx_start]; + rx_start++; + rx_start &= BUFFER_MASK; + } else { + USISRL = 0x00; + } + + // SDA = output + USICTL0 |= USIOE; + + // Bit counter = 8 + USICNT |= 0x08; +} + +static void TransmitAck(uint8_t value) +{ + if(value) { + I2C_State = I2C_Idle; + USISRL = 0xFF; + + } else { + I2C_State = I2C_TX_Ack; + USISRL = 0x00; + } + + // SDA = output + USICTL0 |= USIOE; + + // Bit counter = 1 + USICNT |= 0x01; +} + +interrupt(USI_VECTOR) IntServiceRoutineI2C() +{ + if (USICTL1 & USISTTIFG) { // Start? + I2C_State = I2C_RX_Addr; + + // Bit counter = 8, RX address + USICNT = (USICNT & 0xE0) | 0x08; + + } else switch(I2C_State++) { + case I2C_Idle: + I2C_State = I2C_Idle; + USICTL0 &= ~USIOE; + break; + + case I2C_RX_Addr: + I2C_Offset = 0; + + // Address match? if yes send [N]Ack depending on buffer state + if (USISRL == (I2C_Addr | I2C_Write)) { + TransmitAck(TxIndex() == tx_start); + + } else if (USISRL == (I2C_Addr | I2C_Read)) { + TransmitAck(rx_start == rx_end); + I2C_State = I2C_RX_Ack; + + } else { + // No address match -> ignored + I2C_State = I2C_Idle; + } + break; + + case I2C_TX_Ack: + I2C_State = I2C_RX_Data; + Receive(8); + break; + + case I2C_TX_Data: + Receive(1); + break; + + case I2C_RX_Ack: + if(USISRL & 1) { + I2C_State = I2C_Idle; + + } else { + TransmitData(); + + } + break; + + case I2C_RX_Data: + tx_buffer[TxIndex()] = USISRL; + I2C_Offset++; + + TransmitAck(TxIndex() == tx_start); + break; + } + + // Clear Flags + USICTL1 &= ~(USIIFG | USISTTIFG); +} + +interrupt(PORT1_VECTOR) IntServiceRoutinePort1() +{ + P1IFG &= ~0x80; + + if(USICTL1 & USISTP) { + USICTL0 &= ~USIOE; + USICTL1 &= ~USISTP; + I2C_State = I2C_Idle; + if(I2C_Offset != 0) { + tx_buffer[tx_end] = I2C_Offset; + tx_end += I2C_Offset + 1; + tx_end &= BUFFER_MASK; + CEC_SendMessage(); + } + } +}*/ + +#endif diff --git a/msp430/main.c b/msp430/main.c new file mode 100644 index 0000000..86f1a4f --- /dev/null +++ b/msp430/main.c @@ -0,0 +1,52 @@ +/* + * Copyright + * + * Copyright (C) 2009-2010 Christian König (deathsimple@vodafone.de) + * + * License + * + * This program is free software; you can redistribute and/or modify + * program under the terms of GNU General Public license either version 3 + * of the License, or (at your option) any later version. + * + */ + +#include +#include + +#define DEBUG + +#include "i2c.h" +#include "cec.h" + +struct buffer rx_buf; +struct buffer tx_buf; + +static inline void OutputSMCLK() +{ +#ifdef DEBUG + P1SEL |= 1 << 4; + P1DIR |= 1 << 4; +#endif +} + +int main() +{ + // disable watchdog timer and RESET pin + WDTCTL = WDTPW | WDTHOLD | WDTNMI; + + // DCO=12MHz and SMCLK=1.5MHz + DCOCTL = CALDCO_12MHZ; + BCSCTL1 = CALBC1_12MHZ; + BCSCTL2 = DIVS_3; + + OutputSMCLK(); + + I2C_Init(); + CEC_Init(); + + while(1) { + WRITE_SR(LPM0_bits|GIE); + } + return 0; +} -- cgit v1.2.3