X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Fser_dsp56k.c;h=a5a96fb7fb404bd106d1f5fdfbde32e34e9cec77;hb=be670d92a85770cfa7edcbaca9a94032ddf1b114;hp=d2f1362041180fbed8d63d242a369dad190ca174;hpb=0375780817109b6ab5cd4f36ccf80650b2fe77d5;p=bertos.git diff --git a/drv/ser_dsp56k.c b/drv/ser_dsp56k.c index d2f13620..a5a96fb7 100755 --- a/drv/ser_dsp56k.c +++ b/drv/ser_dsp56k.c @@ -1,20 +1,40 @@ -/** +/*! * \file - * Copyright (C) 2003 Develer S.r.l. (http://www.develer.com/) - * All Rights Reserved. + * * * \version $Id$ * * \author Stefano Fedrigo + * \author Giovanni Bajo * * \brief DSP5680x CPU specific serial I/O driver */ -#include -#include -#include +/*#* + *#* $Log$ + *#* Revision 1.5 2004/08/25 14:12:08 rasky + *#* Aggiornato il comment block dei log RCS + *#* + *#* Revision 1.4 2004/07/30 14:27:49 rasky + *#* Aggiornati alcuni file DSP56k per la nuova libreria di IRQ management + *#* + *#* Revision 1.3 2004/06/03 11:27:09 bernie + *#* Add dual-license information. + *#* + *#* Revision 1.2 2004/05/23 18:21:53 bernie + *#* Trim CVS logs and cleanup header info. + *#* + *#*/ + #include "ser.h" #include "ser_p.h" +#include +#include +#include +#include // GPIO E is shared with SPI (in DSP56807). Pins 0&1 are TXD0 and RXD0. To use // the serial, we need to disable the GPIO functions on them. @@ -34,11 +54,10 @@ struct SCI struct SerialHardware hw; struct Serial* serial; volatile struct REG_SCI_STRUCT* regs; - uint16_t irq_tx; - uint16_t irq_rx; + IRQ_VECTOR irq_tx; + IRQ_VECTOR irq_rx; }; - static inline void enable_tx_irq_bare(volatile struct REG_SCI_STRUCT* regs) { regs->CR |= REG_SCI_CR_TEIE | REG_SCI_CR_TIIE; @@ -83,8 +102,9 @@ static inline void enable_rx_irq(struct SerialHardware* _hw) enable_rx_irq_bare(regs); } -INLINE void tx_isr(struct SCI *hw) +static void tx_isr(const struct SCI *hw) { +#pragma interrupt warn volatile struct REG_SCI_STRUCT* regs = hw->regs; if (fifo_isempty(&hw->serial->txfifo)) @@ -97,20 +117,21 @@ INLINE void tx_isr(struct SCI *hw) } } -INLINE void rx_isr(struct SCI *hw) +static void rx_isr(const struct SCI *hw) { +#pragma interrupt warn volatile struct REG_SCI_STRUCT* regs = hw->regs; - hw->serial->status |= regs->SR & (SERRF_PARITYERROR | - SERRF_RXSROVERRUN | - SERRF_FRAMEERROR | + hw->serial->status |= regs->SR & (SERRF_PARITYERROR | + SERRF_RXSROVERRUN | + SERRF_FRAMEERROR | SERRF_NOISEERROR); - + if (fifo_isfull(&hw->serial->rxfifo)) hw->serial->status |= SERRF_RXFIFOOVERRUN; else fifo_push(&hw->serial->rxfifo, regs->DR); - + // Writing anything to the status register clear the // error bits. regs->SR = 0; @@ -124,18 +145,20 @@ static void init(struct SerialHardware* _hw, struct Serial* ser) // Clear status register (IRQ/status flags) (void)regs->SR; regs->SR = 0; - + // Clear data register (void)regs->DR; - - // Set priorities for both IRQs + + // Install the handlers and set priorities for both IRQs + irq_install(hw->irq_tx, (isr_t)tx_isr, hw); + irq_install(hw->irq_rx, (isr_t)rx_isr, hw); irq_setpriority(hw->irq_tx, IRQ_PRIORITY_SCI_TX); irq_setpriority(hw->irq_rx, IRQ_PRIORITY_SCI_RX); // Activate the RX error interrupts, and RX/TX transmissions regs->CR = REG_SCI_CR_TE | REG_SCI_CR_RE; enable_rx_irq_bare(regs); - + // Disable GPIO pins for TX and RX lines REG_GPIO_SERIAL->PER |= REG_GPIO_SERIAL_MASK; @@ -176,51 +199,22 @@ static const struct SerialHardwareVT SCI_VT = static struct SCI SCIDescs[2] = { - { - .hw = { .table = &SCI_VT }, - .regs = ®_SCI[0], - .irq_rx = IRQ_SCI0_RECEIVER_FULL, - .irq_tx = IRQ_SCI0_TRANSMITTER_READY, - }, - - { - .hw = { .table = &SCI_VT }, + { + .hw = { .table = &SCI_VT }, + .regs = ®_SCI[0], + .irq_rx = IRQ_SCI0_RECEIVER_FULL, + .irq_tx = IRQ_SCI0_TRANSMITTER_READY, + }, + + { + .hw = { .table = &SCI_VT }, .regs = ®_SCI[1], - .irq_rx = IRQ_SCI1_RECEIVER_FULL, - .irq_tx = IRQ_SCI1_TRANSMITTER_READY, - }, + .irq_rx = IRQ_SCI1_RECEIVER_FULL, + .irq_tx = IRQ_SCI1_TRANSMITTER_READY, + }, }; - -void ser_hw_tx_isr_0(void); -void ser_hw_tx_isr_0(void) -{ -#pragma interrupt warn - tx_isr(&SCIDescs[0]); -} - -void ser_hw_rx_isr_0(void); -void ser_hw_rx_isr_0(void) -{ -#pragma interrupt warn - rx_isr(&SCIDescs[0]); -} - -void ser_hw_tx_isr_1(void); -void ser_hw_tx_isr_1(void) -{ -#pragma interrupt warn - tx_isr(&SCIDescs[1]); -} - -void ser_hw_rx_isr_1(void); -void ser_hw_rx_isr_1(void) -{ -#pragma interrupt warn - rx_isr(&SCIDescs[1]); -} - struct SerialHardware* ser_hw_getdesc(int unit) { ASSERT(unit < 2);