FreeCalypso > hg > fc-magnetite
view src/g23m-gprs/grlc/grlc_f.h @ 629:3231dd9b38c1
armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets
Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively,
and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code
for C-Sample and earlier turns them into GPIOs configured as outputs also
driving 1 - so far, so good - but TI's code for BOARD 41 (which covers
D-Sample, Leonardo and all real world Calypso devices derived from the
latter) switches them from MCUEN to GPIOs, but then leaves them as inputs.
Given that the hardware powerup state of these two pins is outputs driving 1,
every Calypso board design MUST be compatible with such driving; typically
these GPIO signals will be either unused and unconnected or connected as
outputs driving some peripheral. Turning these pins into GPIO inputs will
result in floating inputs on every reasonably-wired board, thus I am
convinced that this configuration is nothing but a bug on the part of
whoever wrote this code at TI.
This floating input bug had already been fixed earlier for GTA modem and
FCDEV3B targets; the present change makes the fix unconditional for all
"classic" targets. The newly affected targets are D-Sample, Leonardo,
Tango and GTM900.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 02 Jan 2020 05:38:26 +0000 |
| parents | 219afcfc6250 |
| children |
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/* +----------------------------------------------------------------------------- | Project : GPRS (8441) | Modul : GRLC +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose: Definitions for grlc_f.c . +----------------------------------------------------------------------------- */ #ifndef GRLC_F_H #define GRLC_F_H #define END_OF_LIST 0xff /* grlc_delete_prim */ #define DELETE_MESSAGE 0xff /* grlc_ccd_error_handling grlc_decode_grlc */ #define COMPUTE_DATA 0x00 /* grlc_prbs testmode */ #define INITIALIZE 0x01 /* grlc_prbs testmode */ /*****************************************************************************************************************************/ EXTERN ULONG grlc_buffer2ulong ( BUF_cr_tlli *tlli ); /* BOTH_ENT */ EXTERN void grlc_init ( void ); EXTERN void grlc_delete_prim ( void ); EXTERN UBYTE grlc_decode_grlc ( T_MSGBUF * msg_ptr_i ); EXTERN void grlc_encode_ctrl ( UBYTE * ptr_in_i, T_MSGBUF * ptr_out_i, UBYTE r_bit_i ); EXTERN void grlc_prim_put ( UBYTE * liststart_i, UBYTE object_i, UBYTE pos_i ); EXTERN UBYTE grlc_prim_get_first ( UBYTE * liststart_i ); EXTERN ULONG grlc_calc_new_poll_pos ( ULONG fn_i, UBYTE rrbp_i ); /* BOTH_ENT */ EXTERN UBYTE * grlc_set_packet_ctrl_ack ( void ); /* BOTH_ENT? */ EXTERN void grlc_send_access_burst ( UBYTE tn_i ); EXTERN void grlc_send_normal_burst ( UBYTE * struct_data, UBYTE * encoded_data, UBYTE tn_i ); EXTERN void grlc_del_sent_poll ( void ); EXTERN void grlc_save_poll_pos ( ULONG fn_i, USHORT tn_i, UBYTE rrbp_i, UBYTE poll_type_i, UBYTE pctrl_ack_i ); EXTERN ULONG grlc_decode_tbf_start_rel ( ULONG start_fn, USHORT rel_pos ); EXTERN void grlc_get_sdu_len_and_used_ts ( T_RLC_VALUES * values ); EXTERN BOOL grlc_check_dist ( ULONG high_i, ULONG low_i, ULONG dist_i ); EXTERN void grlc_handle_poll_pos ( ULONG current_fn ); EXTERN void grlc_send_rem_poll_pos ( ULONG current_fn ); EXTERN UBYTE grlc_test_mode_active ( void ); EXTERN void grlc_prbs ( UBYTE action_i, UBYTE lenght_i, UBYTE * ptr_i ); /* Testmode */ EXTERN void grlc_trace_tbf_par ( UBYTE tbf_index ); EXTERN void grlc_set_buf_tlli ( BUF_tlli_value *buf_tlli_o, ULONG tlli_i ); /* BOTH_ENT */ EXTERN void grlc_set_tlli ( USHORT * l_tlli, USHORT * o_tlli, UBYTE * b_tlli, ULONG tlli ); /* BOTH_ENT */ EXTERN void grlc_encode_ul_ctrl_block ( UBYTE *ul_ctrl_block, UBYTE *ul_ctrl_data ); /* BOTH_ENT */ EXTERN BOOL grlc_check_if_tbf_start_is_elapsed ( ULONG start_fn, ULONG current_fn ); EXTERN void grlc_activate_tfi ( ULONG fn_i ); EXTERN T_TIME grlc_t_status ( USHORT t_index ); EXTERN void grlc_enter_standby_state ( void ); EXTERN void grlc_enter_ready_state ( void ); #endif /* !GRLC_F_H */