FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/r2d/lcds/ColorBoard/r2d_task_i.c @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 4e78acac3d88 |
children |
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#define MASTER_CMD(data) *(volatile unsigned char*)0x2000005 = (data) #define MASTER_DATA(data) *(volatile unsigned char*)0x2000004 = (data) #define SLAVE_CMD(data) *(volatile unsigned char*)0x2000003 = (data) #define SLAVE_DATA(data) *(volatile unsigned char*)0x2000002 = (data) void r2d_lcd_power_on(void) { } void r2d_lcd_power_off(void) { } void r2d_refresh(void) { INT16 x,y; UINT32 v; UINT32 *mp,*sp; UINT32 mtmp,stmp; #ifndef _WINDOWS MASTER_CMD(0xF0); // RE register set MASTER_CMD(0xA3); // Auto incremnent MASTER_CMD(0x00); // X Address set (lower) MASTER_CMD(0x10); // X Address set (upper) MASTER_CMD(0x20); // Y Address set (lower) MASTER_CMD(0x30); // Y Address set (upper) MASTER_CMD(0x97); // Display control //position slave SLAVE_CMD(0xF0); // RE register set SLAVE_CMD(0xA3); // Auto incremnent SLAVE_CMD(0x00); // X Address set (lower) SLAVE_CMD(0x10); // X Address set (upper) SLAVE_CMD(0x20); // Y Address set (lower) SLAVE_CMD(0x30); // Y Address set (upper) SLAVE_CMD(0x96); // Display control #endif // rvf_send_trace("R2D REFRESH",strlen("R2D REFRESH"), NULL_PARAM, // RV_TRACE_LEVEL_DEBUG_HIGH, TRACE_XXX ); mp=r2d_g_framebuffer->p_memory_words; // One word added by computation of R2D_MWWIDTH // so 49 used instead of 48 sp=mp+(64*49); for (y=0;y<64;y++) { for (x=0; x<48;x++) { mtmp=~(*mp++); stmp=~(*sp++); MASTER_DATA(mtmp&0xFF); SLAVE_DATA(stmp&0xFF); #ifndef _WINDOWS mtmp>>=16; stmp>>=16; MASTER_DATA(mtmp&0xFF); SLAVE_DATA(stmp&0xFF); #endif } // R2D_MWWIDTH is one word larger than the real LCD size // so when refreshing that must be taken into account *mp++; *sp++; } // Finish sending datas to LCD r2d_reinit_update_region(); #ifdef _WINDOWS lcd_refresh(); #endif }