FreeCalypso > hg > freecalypso-sw
view gsm-fw/bsp/armio.c @ 515:cb38dc8aed39
gsm-fw/configs/{c139,c155}.ramdemo added
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Wed, 02 Jul 2014 04:00:01 +0000 |
parents | 383abdbc5d35 |
children | 4c80a6e6723f |
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/* * ARMIO.C * * * Control diagnostic bits * * Reference : GCS207 * */ #include "../include/config.h" #include "../include/sys_types.h" #include "mem.h" #include "iq.h" #include "armio.h" #if 0 /* FreeCalypso: abb.h hasn't been integrated yet */ #include "abb.h" // for AI_Power function : to be removed, use ABB_Power_Off in abb.c file instead !!! #endif #if (CHIPSET != 12) /* * AI_EnableBit * * Enable ARMIO input/output bit (see CLKM module specification) */ void AI_EnableBit(int bit) { *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) |= (1<<bit); } /* * AI_DisableBit * * Disable ARMIO input/output bit (see CLKM module specification) */ void AI_DisableBit(int bit) { *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) &= ~(1<<bit); } #endif /* CHIPSET != 12 */ /* * AI_SetBit * * Switch-on one bit */ void AI_SetBit(int bit) { *((volatile SYS_UWORD16 *) ARMIO_OUT) |= (1<<bit); } /* * AI_ResetBit * * Switch-off one bit */ void AI_ResetBit(int bit) { *((volatile SYS_UWORD16 *) ARMIO_OUT) &= ~(1<<bit); } /* * AI_ConfigBitAsOutput * * Set this bit as an output */ void AI_ConfigBitAsOutput(int bit) { *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) &= ~(1<<bit); } /* * AI_ConfigBitAsInput * * Set this bit as an input */ void AI_ConfigBitAsInput(int bit) { *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) |= (1<<bit); } /* * AI_ReadBit * * Read value in register */ SYS_BOOL AI_ReadBit(int bit) { if ((*((volatile SYS_UWORD16 *) ARMIO_IN)) & (1<<bit)) return (1); else return (0); } /* * AI_Power * * Switch-on or off the board * * Parameters : SYS_UWORD8 power: 1 to power-on (maintain power) * 0 to power-off * */ // #if (!OP_L1_STANDALONE) #if 0 void AI_Power(SYS_UWORD8 power) { if (power == 0) { ABB_Power_Off(); } } #endif /* * AI_ResetIoConfig * * Reset all default IO configurations * */ void AI_ResetIoConfig(void) { *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) = 0xFFFF; // all bits are inputs #if (CHIPSET != 12) *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) = 0; // default config #endif /* CHIPSET != 12 */ } /* * AI_ClockEnable * * Enable ARMIO clock module * */ void AI_ClockEnable(void) { *((volatile SYS_UWORD16 *) ARMIO_CNTL_REG) |= ARMIO_CLOCKEN; // set to 1 bit 5 } /* * The AI_InitIOConfig() function is target-specific. */ #ifdef CONFIG_TARGET_GTAMODEM /* version for the Openmoko GTA0x GSM modem */ void AI_InitIOConfig(void) { // reset the IOs config AI_ResetIoConfig(); /* * The GTA0x Calypso block is a stripped-down version of the Leonardo, * reduced to the absolute minimum that is needed for a slave modem. * Almost all of the unused interface pins are left unconnected, only * a few are pulled externally to GND or VIO. * * We handle the unused pins the way TI's code does: configure them * as GPIOs, then as outputs driving a fixed value (high for GPIOs 8+, * low for 0-7). */ /* I'll be brave and turn the unused TSPDI input into a GPIO4 output */ AI_EnableBit(0); /* Don't want to do that for the IO5 pin though, as it's wired to SIM_IO * through a resistor like on the Leonardo. */ AI_DisableBit(1); /* * The following 2 lines are straight from the Leonardo source: enable * GPIO6 and GPIO8. GPIO6 takes the place of an ancient VEGA3(?) compat * pin, and GPIO8 takes the place of MCUEN1 which no Leonardo-based * design seems to use. * * Note that GPIO7 is not enabled in this version, so that pin retains * its meaning as nRESET_OUT - but it's an unused output, rather than * a floating input, so we are fine. */ AI_EnableBit(2); AI_EnableBit(4); /* * The GTA0x modem has no Calypso-interfaced Bluetooth, nor any other * use for MCSI, aka the DSP backdoor interface. So we turn these 4 pins * into GPIOs driving high output state like TI's code does in the * sans-BT configuration. */ AI_EnableBit(5); AI_EnableBit(6); AI_EnableBit(7); AI_EnableBit(8); /* ditto for MCUEN2 turned GPIO 13 */ AI_EnableBit(9); // ARMIO_OUT register configuration : // set IOs 8,9,10,11,12 and 13 as high // set IOs 0 to 7 as low // Falcon's note: the BP->AP interrupt line gets set low as desired *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x3F00; // ARMIO_CNTL_REG register configuration : // set IOs 0,1,6,8,9,10,11,12 and 13 as outputs. // Falcon's addition: set 2, 3 and 4 as outputs too, // as they are no-connects on the board. AI_ConfigBitAsOutput(0); AI_ConfigBitAsOutput(1); AI_ConfigBitAsOutput(2); AI_ConfigBitAsOutput(3); AI_ConfigBitAsOutput(4); AI_ConfigBitAsOutput(6); AI_ConfigBitAsOutput(8); AI_ConfigBitAsOutput(9); AI_ConfigBitAsOutput(10); AI_ConfigBitAsOutput(11); AI_ConfigBitAsOutput(12); AI_ConfigBitAsOutput(13); } #endif #ifdef CONFIG_TARGET_PIRELLI /* version for Pirelli DP-L10 */ void AI_InitIOConfig(void) { // reset the IOs config AI_ResetIoConfig(); /* * In the case of the Pirelli, our understanding of the hardware * is severely crippled by the lack of schematics and the difficulty of * reverse engineering from steve-m's PCB layer grind-down scans. * * The folllowing ARMIO configuration has been copied from OsmocomBB. */ AI_EnableBit(0); AI_EnableBit(1); AI_EnableBit(2); AI_EnableBit(3); AI_EnableBit(4); AI_EnableBit(9); /* GPIO out all zeros */ *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x0000; /* setup outputs like OsmocomBB does */ AI_ConfigBitAsOutput(1); AI_ConfigBitAsOutput(4); AI_ConfigBitAsOutput(7); } #endif #ifdef CONFIG_TARGET_COMPAL /* same for all C1xx variants */ void AI_InitIOConfig(void) { // reset the IOs config AI_ResetIoConfig(); /* * I don't feel like scrutinizing every Calypso signal on the C139 * and C155 schematics right now, so for now we'll use a GPIO * configuration based on OsmocomBB. */ /* GPIO out all zeros */ *((volatile SYS_UWORD16 *) ARMIO_OUT) = 0x0000; /* make GPIOs 1 and 3 outputs */ AI_ConfigBitAsOutput(1); AI_ConfigBitAsOutput(3); } #endif /* * AI_SelectIOForIT * * Select which IO will be used to generate an interrupt. * 'Edge' specifies if interrup must be detected on falling or rising edge. * * Warning: parameters are not checked. */ void AI_SelectIOForIT (SYS_UWORD16 Pin, SYS_UWORD16 Edge) { #if (CHIPSET == 12) /* * Update INTERRUPT_LEVEL_REG with Edge configuration on Pin selection */ GPIO_INTERRUPT_LEVEL_REG = (Edge & 0x0001) << Pin; /* * Update INTERRUPT_MASK_REG to enable interrupt generation on Pin selection */ GPIO_INTERRUPT_MASK_REG = 1 << Pin; #else /* * Bit SET_GPIO_EVENT_MODE (bit 0) is set to enable the GPIO event mode. */ *((volatile SYS_UWORD16 *) ARMIO_GPIO_EVENT_MODE) = (Pin << 1) + (Edge << 5) + 1; #endif } #if (CHIPSET != 12) /* * AI_CheckITSource * * Check if the interrupt specified by 'Source' is active or not. * * Output: 0: IT is not active * 1: IT is active * * Warning: parameters are not checked. * * Warning: If the keypad and GPIO interrupts may occur the GPIO interrupt * must be checked first because the GPIO status bit is reset when * the register is read. */ int AI_CheckITSource (SYS_UWORD16 Source) { return (*((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_INT) & Source ? 1 : 0); } /* * AI_UnmaskIT * * Unmask the IT specified by 'Source' (keyboard or GPIO). * * Warning: parameters are not checked. */ void AI_UnmaskIT (SYS_UWORD16 Source) { *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) &= ~Source; } /* * AI_MaskIT * * Mask the IT specified by 'Source' (keyboard or GPIO). * * Warning: parameters are not checked. */ void AI_MaskIT (SYS_UWORD16 Source) { *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) |= Source; } #endif /* CHIPSET != 12 */ #if (CHIPSET == 12) void AI_MaskIT(SYS_UWORD16 d_io_number) { GPIO_INTERRUPT_MASK_REG |= (1 << d_io_number); } /* f_gpio_mask_it() */ void AI_UnmaskIT(SYS_UWORD16 d_io_number) { GPIO_INTERRUPT_MASK_REG &= ~(1 << d_io_number); } /* f_gpio_unmask_it() */ #endif