From 55a7a31ce3a742feea2ff47f6ec35356ebb0ba06 Mon Sep 17 00:00:00 2001 From: Bertrik Sikken Date: Sat, 23 Apr 2011 08:23:07 +0000 Subject: Split off target-specific parts from firmware/drivers/serial.c git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29768 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/serial.c | 219 +--------------------------------------------- 1 file changed, 1 insertion(+), 218 deletions(-) (limited to 'firmware/drivers/serial.c') diff --git a/firmware/drivers/serial.c b/firmware/drivers/serial.c index 26637f140c..fb8851daf2 100644 --- a/firmware/drivers/serial.c +++ b/firmware/drivers/serial.c @@ -30,223 +30,7 @@ #include "serial.h" #include "iap.h" -#if CONFIG_CPU == IMX31L -#include "serial-imx31.h" -#endif - -#if CONFIG_CPU == SH7034 - -/* FIX: this doesn't work on iRiver or iPod yet */ -/* iFP7xx has no remote */ - -/* Received byte identifiers */ -#define PLAY 0xC1 -#define STOP 0xC2 -#define PREV 0xC4 -#define NEXT 0xC8 -#define VOLUP 0xD0 -#define VOLDN 0xE0 - -void serial_setup (void) -{ - /* Set PB10 function to serial Rx */ - PBCR1 = (PBCR1 & 0xffcf) | 0x0020; - - SMR1 = 0x00; - SCR1 = 0; - BRR1 = (FREQ/(32*9600))-1; - and_b(0, &SSR1); /* The status bits must be read before they are cleared, - so we do an AND operation */ - - /* Let the hardware settle. The serial port needs to wait "at least - the interval required to transmit or receive one bit" before it - can be used. */ - sleep(1); - - SCR1 = 0x10; /* Enable the receiver, no interrupt */ -} - -int tx_rdy(void) -{ - /* a dummy */ - return 1; -} - -int rx_rdy(void) -{ - if(SSR1 & SCI_RDRF) - return 1; - else - return 0; -} - -void tx_writec(unsigned char c) -{ - /* a dummy */ - (void)c; -} - -unsigned char rx_readc(void) -{ - char tmp; - /* Read byte and clear the Rx Full bit */ - tmp = RDR1; - and_b(~SCI_RDRF, &SSR1); - return tmp; -} - - -/* This function returns the received remote control code only if it is - received without errors before or after the reception. - It therefore returns the received code on the second call after the - code has been received. */ -int remote_control_rx(void) -{ - static int last_valid_button = BUTTON_NONE; - static int last_was_error = false; - int btn; - int ret = BUTTON_NONE; - - /* Errors? Just clear'em. The receiver stops if we don't */ - if(SSR1 & (SCI_ORER | SCI_FER | SCI_PER)) { - and_b(~(SCI_ORER | SCI_FER | SCI_PER), &SSR1); - last_valid_button = BUTTON_NONE; - last_was_error = true; - return BUTTON_NONE; - } - - if(rx_rdy()) { - btn = rx_readc(); - - if(last_was_error) - { - last_valid_button = BUTTON_NONE; - ret = BUTTON_NONE; - } - else - { - switch (btn) - { - case STOP: - last_valid_button = BUTTON_RC_STOP; - break; - - case PLAY: - last_valid_button = BUTTON_RC_PLAY; - break; - - case VOLUP: - last_valid_button = BUTTON_RC_VOL_UP; - break; - - case VOLDN: - last_valid_button = BUTTON_RC_VOL_DOWN; - break; - - case PREV: - last_valid_button = BUTTON_RC_LEFT; - break; - - case NEXT: - last_valid_button = BUTTON_RC_RIGHT; - break; - - default: - last_valid_button = BUTTON_NONE; - break; - } - } - } - else - { - /* This means that a valid remote control character was received - the last time we were called, with no receiver errors either before - or after. Then we can assume that there really is a remote control - attached, and return the button code. */ - ret = last_valid_button; - last_valid_button = BUTTON_NONE; - } - - last_was_error = false; - - return ret; -} - -#elif defined(CPU_COLDFIRE) - -void serial_setup (void) -{ - UCR0 = 0x30; /* Reset transmitter */ - UCSR0 = 0xdd; /* Timer mode */ - - UCR0 = 0x10; /* Reset pointer */ - UMR0 = 0x13; /* No parity, 8 bits */ - UMR0 = 0x07; /* 1 stop bit */ - - UCR0 = 0x04; /* Tx enable */ -} - -int tx_rdy(void) -{ - if(USR0 & 0x04) - return 1; - else - return 0; -} - -int rx_rdy(void) -{ - /* a dummy */ - return 0; -} - -void tx_writec(unsigned char c) -{ - UTB0 = c; -} - -#elif (CONFIG_CPU == IMX31L) - -void serial_setup(void) -{ -#ifdef UART_INT /*enable UART Interrupts */ - UCR1_1 |= (EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN); - UCR4_1 |= (EUARTUCR4_TCEN); -#else /*disable UART Interrupts*/ - UCR1_1 &= ~(EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN); - UCR4_1 &= ~(EUARTUCR4_TCEN); -#endif - UCR1_1 |= EUARTUCR1_UARTEN; - UCR2_1 |= (EUARTUCR2_TXEN | EUARTUCR2_RXEN | EUARTUCR2_IRTS); - - /* Tx,Rx Interrupt Trigger levels, Disable for now*/ - /*UFCR1 |= (UFCR1_TXTL_32 | UFCR1_RXTL_32);*/ -} - -int tx_rdy(void) -{ - if((UTS1 & EUARTUTS_TXEMPTY)) - return 1; - else - return 0; -} - -/*Not ready...After first Rx, UTS1 & UTS1_RXEMPTY - keeps returning true*/ -int rx_rdy(void) -{ - if(!(UTS1 & EUARTUTS_RXEMPTY)) - return 1; - else - return 0; -} - -void tx_writec(unsigned char c) -{ - UTXD1=(int) c; -} - -#elif defined(IPOD_ACCESSORY_PROTOCOL) +#if defined(IPOD_ACCESSORY_PROTOCOL) static int autobaud = 0; void serial_setup (void) { @@ -419,7 +203,6 @@ void SERIAL0(void) newpkt = pkt; } } - #endif void dprintf(const char * str, ... ) -- cgit v1.2.3