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bsp/tqm8xx: Convert console to new Termios API

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Update #3513.
This commit is contained in:
Sebastian Huber
2018-09-12 11:47:19 +02:00
parent 68920e7f92
commit d22147e072
2 changed files with 99 additions and 258 deletions
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356
bsps/powerpc/tqm8xx/console/console.c
View File

@@ -46,14 +46,10 @@
* http://www.OARcorp.com/rtems/license.html.
*/
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <rtems.h>
#include <rtems/console.h>
#include <rtems/libio.h>
#include <rtems/termiostypes.h>
#include <rtems/bspIo.h>
#include <rtems/error.h>
@@ -115,7 +111,7 @@ typedef volatile char sccRxBuf_t[SCC_RXBD_CNT][RXBUFSIZE];
* Interrupt-driven callback
*/
typedef struct m8xx_console_chan_desc_s {
void *tty;
rtems_termios_device_context base;
volatile m8xxBufferDescriptor_t *sccFrstRxBd;
volatile m8xxBufferDescriptor_t *sccCurrRxBd;
volatile m8xxBufferDescriptor_t *sccFrstTxBd;
@@ -290,7 +286,7 @@ static uint32_t clkin_frq[2][4] = {
* FIXME: set pin to be clock input
*/
static int sccBRGalloc(m8xx_console_chan_desc_t *cd,int baud)
static bool sccBRGalloc(m8xx_console_chan_desc_t *cd,int baud)
{
rtems_interrupt_level level;
uint32_t reg_val;
@@ -382,44 +378,35 @@ static int sccBRGalloc(m8xx_console_chan_desc_t *cd,int baud)
m8xx.simode = ((m8xx.simode & ~(M8xx_SIMODE_SMCCS_MSK(cd->chan - CONS_CHN_SMC1)))|
M8xx_SIMODE_SMCCS(cd->chan - CONS_CHN_SMC1,new_brg));
}
return true;
} else {
return false;
}
return (new_brg < 0);
}
/*
* Hardware-dependent portion of tcsetattr().
*/
static int
sccSetAttributes (int minor, const struct termios *t)
static bool
sccSetAttributes (rtems_termios_device_context *base, const struct termios *t)
{
m8xx_console_chan_desc_t *cd = &m8xx_console_chan_desc[minor];
int baud;
m8xx_console_chan_desc_t *cd = (m8xx_console_chan_desc_t *)base;
speed_t speed;
rtems_termios_baud_t baud;
switch (t->c_ospeed) {
default: baud = -1; break;
case B50: baud = 50; break;
case B75: baud = 75; break;
case B110: baud = 110; break;
case B134: baud = 134; break;
case B150: baud = 150; break;
case B200: baud = 200; break;
case B300: baud = 300; break;
case B600: baud = 600; break;
case B1200: baud = 1200; break;
case B1800: baud = 1800; break;
case B2400: baud = 2400; break;
case B4800: baud = 4800; break;
case B9600: baud = 9600; break;
case B19200: baud = 19200; break;
case B38400: baud = 38400; break;
case B57600: baud = 57600; break;
case B115200: baud = 115200; break;
case B230400: baud = 230400; break;
case B460800: baud = 460800; break;
speed = cfgetispeed(t);
if (speed == B0) {
speed = cfgetospeed(t);
}
baud = rtems_termios_baud_to_number(speed);
if (baud == 0) {
return false;
}
return sccBRGalloc(cd,baud);
return 0;
}
/*
@@ -428,7 +415,8 @@ sccSetAttributes (int minor, const struct termios *t)
static rtems_isr
sccInterruptHandler (void *arg)
{
m8xx_console_chan_desc_t *cd = arg;
rtems_termios_tty *tty = arg;
m8xx_console_chan_desc_t *cd = rtems_termios_get_device_context(tty);
/*
* Buffer received?
@@ -442,13 +430,11 @@ sccInterruptHandler (void *arg)
* process event
*/
while ((cd->sccCurrRxBd->status & M8xx_BD_EMPTY) == 0) {
if (cd->tty != NULL) {
rtems_cache_invalidate_multiple_data_lines((void *)cd->sccCurrRxBd->buffer,
cd->sccCurrRxBd->length);
rtems_termios_enqueue_raw_characters (cd->tty,
(char *)cd->sccCurrRxBd->buffer,
cd->sccCurrRxBd->length);
}
rtems_cache_invalidate_multiple_data_lines((void *)cd->sccCurrRxBd->buffer,
cd->sccCurrRxBd->length);
rtems_termios_enqueue_raw_characters (tty,
(char *)cd->sccCurrRxBd->buffer,
cd->sccCurrRxBd->length);
/*
* clear status
*/
@@ -483,10 +469,7 @@ sccInterruptHandler (void *arg)
*/
while((cd->sccDequTxBd != cd->sccPrepTxBd) &&
((cd->sccDequTxBd->status & M8xx_BD_READY) == 0)) {
if (cd->tty != NULL) {
rtems_termios_dequeue_characters (cd->tty,
cd->sccDequTxBd->length);
}
rtems_termios_dequeue_characters (tty, cd->sccDequTxBd->length);
/*
* advance to next BD
*/
@@ -688,31 +671,15 @@ sccInitialize (m8xx_console_chan_desc_t *cd)
else {
cd->regs.smcr->smcmr |= 0x0003;
}
if (cd->mode != TERMIOS_POLLED) {
rtems_status_code sc;
sc = rtems_interrupt_handler_install(
cd->ivec_src,
"SCC",
RTEMS_INTERRUPT_UNIQUE,
sccInterruptHandler,
cd
);
if (sc != RTEMS_SUCCESSFUL) {
rtems_panic("console: cannot install IRQ handler");
}
mpc8xx_console_irq_on(cd);
}
}
/*
* polled scc read function
*/
static int
sccPollRead (int minor)
sccPollRead (rtems_termios_device_context *base)
{
m8xx_console_chan_desc_t *cd = &m8xx_console_chan_desc[minor];
m8xx_console_chan_desc_t *cd = (m8xx_console_chan_desc_t *)base;
int c = -1;
while(1) {
@@ -760,11 +727,11 @@ sccPollRead (int minor)
* Polling devices:
* Transmit all characters.
*/
static ssize_t
sccInterruptWrite (int minor, const char *buf, size_t len)
static void
sccInterruptWrite (rtems_termios_device_context *base, const char *buf, size_t len)
{
if (len > 0) {
m8xx_console_chan_desc_t *cd = &m8xx_console_chan_desc[minor];
m8xx_console_chan_desc_t *cd = (m8xx_console_chan_desc_t *)base;
if ((cd->sccPrepTxBd->status & M8xx_BD_READY) == 0) {
cd->sccPrepTxBd->buffer = (char *)buf;
cd->sccPrepTxBd->length = len;
@@ -784,18 +751,15 @@ sccInterruptWrite (int minor, const char *buf, size_t len)
}
}
}
return 0;
}
static ssize_t
sccPollWrite (int minor, const char *buf, size_t len)
static void
sccPollWrite (rtems_termios_device_context *base, const char *buf, size_t len)
{
m8xx_console_chan_desc_t *cd = &m8xx_console_chan_desc[minor];
m8xx_console_chan_desc_t *cd = (m8xx_console_chan_desc_t *)base;
static char txBuf[CONS_CHN_CNT][SCC_TXBD_CNT];
int chan = cd->chan;
int bd_used;
size_t retval = len;
while (len--) {
while (cd->sccPrepTxBd->status & M8xx_BD_READY)
@@ -817,7 +781,6 @@ sccPollWrite (int minor, const char *buf, size_t len)
cd->sccPrepTxBd++;
}
}
return retval;
}
/*
@@ -832,7 +795,7 @@ static void console_debug_putc_onlcr(const char c)
if (BSP_output_chan != CONS_CHN_NONE) {
rtems_interrupt_disable(irq_level);
sccPollWrite (BSP_output_chan,&c,1);
sccPollWrite (&m8xx_console_chan_desc[BSP_output_chan].base,&c,1);
rtems_interrupt_enable(irq_level);
}
}
@@ -859,6 +822,49 @@ struct {
{CONS_CHN_SCC4,CONS_SCC4_MODE}
};
static bool m8xx_console_first_open(
rtems_termios_tty *tty,
rtems_termios_device_context *base,
struct termios *term,
rtems_libio_open_close_args_t *args
)
{
m8xx_console_chan_desc_t *cd = (m8xx_console_chan_desc_t *)base;
if (cd->mode == TERMIOS_IRQ_DRIVEN) {
rtems_status_code sc;
sc = rtems_interrupt_handler_install(
cd->ivec_src,
"SCC",
RTEMS_INTERRUPT_UNIQUE,
sccInterruptHandler,
tty
);
if (sc != RTEMS_SUCCESSFUL) {
return false;
}
mpc8xx_console_irq_on(cd);
}
return true;
}
static const rtems_termios_device_handler m8xx_console_handler_polled = {
.first_open = m8xx_console_first_open,
.set_attributes = sccSetAttributes,
.write = sccPollWrite,
.poll_read = sccPollRead,
.mode = TERMIOS_POLLED
};
static const rtems_termios_device_handler m8xx_console_handler_irq_driven = {
.first_open = m8xx_console_first_open,
.set_attributes = sccSetAttributes,
.write = sccInterruptWrite,
.mode = TERMIOS_IRQ_DRIVEN
};
/*
* Initialize and register the device
@@ -887,7 +893,7 @@ rtems_device_driver console_initialize(rtems_device_major_number major,
entry++) {
if (channel_list[entry].driver_mode != CONS_MODE_UNUSED) {
m8xx_console_chan_desc_t *cd =
&m8xx_console_chan_desc[channel_list[entry].driver_mode];
&m8xx_console_chan_desc[channel_list[entry].minor];
/*
* Do device-specific initialization
*/
@@ -902,23 +908,28 @@ rtems_device_driver console_initialize(rtems_device_major_number major,
/*
* Register the device
*/
status = rtems_io_register_name (tty_name,
major,
channel_list[entry].minor);
status = rtems_termios_device_install(
tty_name,
cd->mode == TERMIOS_IRQ_DRIVEN ?
&m8xx_console_handler_irq_driven : &m8xx_console_handler_polled,
NULL,
&cd->base
);
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred (status);
}
if (cd->chan == CONSOLE_CHN) {
int rv;
rv = link(tty_name, CONSOLE_DEVICE_NAME);
if (rv != 0) {
rtems_fatal_error_occurred (RTEMS_IO_ERROR);
}
}
}
}
/*
* register /dev/console
*/
status = rtems_io_register_name ("/dev/console",
major,
CONSOLE_CHN);
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred (status);
}
/*
* enable printk support
*/
@@ -926,174 +937,3 @@ rtems_device_driver console_initialize(rtems_device_major_number major,
return RTEMS_SUCCESSFUL;
}
/*
* Open the device
*/
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
m8xx_console_chan_desc_t *cd = &m8xx_console_chan_desc[minor];
rtems_status_code status;
int chan = minor;
rtems_libio_open_close_args_t *args = (rtems_libio_open_close_args_t *)arg;
static const rtems_termios_callbacks interruptCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
NULL, /* pollRead */
sccInterruptWrite, /* write */
sccSetAttributes, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
TERMIOS_IRQ_DRIVEN /* outputUsesInterrupts */
};
static const rtems_termios_callbacks pollCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
sccPollRead, /* pollRead */
sccPollWrite, /* write */
sccSetAttributes, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
if (cd->mode == TERMIOS_IRQ_DRIVEN) {
status = rtems_termios_open (major, minor, arg, &interruptCallbacks);
m8xx_console_chan_desc[chan].tty = args->iop->data1;
}
else {
status = rtems_termios_open (major, minor, arg, &pollCallbacks);
m8xx_console_chan_desc[chan].tty = args->iop->data1;
}
return status;
}
/*
* Close the device
*/
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code rc;
rc = rtems_termios_close (arg);
m8xx_console_chan_desc[minor].tty = NULL;
return rc;
}
/*
* Read from the device
*/
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
/*
* Write to the device
*/
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
#if 0
static int scc_io_set_trm_char(rtems_device_minor_number minor,
rtems_libio_ioctl_args_t *ioa)
{
rtems_status_code rc = RTEMS_SUCCESSFUL;
con360_io_trm_char_t *trm_char_info = ioa->buffer;
/*
* check, that parameter is non-NULL
*/
if ((rc == RTEMS_SUCCESSFUL) &&
(trm_char_info == NULL)) {
rc = RTEMS_INVALID_ADDRESS;
}
/*
* transfer max_idl
*/
if (rc == RTEMS_SUCCESSFUL) {
if (trm_char_info->max_idl >= 0x10000) {
rc = RTEMS_INVALID_NUMBER;
}
else if (trm_char_info->max_idl > 0) {
CHN_PARAM_SET(minor,un.uart.max_idl ,trm_char_info->max_idl);
}
else if (trm_char_info->max_idl == 0) {
CHN_PARAM_SET(minor,un.uart.max_idl ,MAX_IDL_DEFAULT);
}
}
/*
* transfer characters
*/
if (rc == RTEMS_SUCCESSFUL) {
if (trm_char_info->char_cnt > CON8XX_TRM_CHAR_CNT) {
rc = RTEMS_TOO_MANY;
}
else if (trm_char_info->char_cnt >= 0) {
/*
* check, whether device is a SCC
*/
if ((rc == RTEMS_SUCCESSFUL) &&
!m8xx_console_chan_desc[minor].is_scc) {
rc = RTEMS_UNSATISFIED;
}
else {
int idx = 0;
for(idx = 0;idx < trm_char_info->char_cnt;idx++) {
m8xx_console_chan_desc[minor].parms.sccp->un.uart.character[idx] =
trm_char_info->character[idx] & 0x00ff;
}
if (trm_char_info->char_cnt < CON8XX_TRM_CHAR_CNT) {
m8xx_console_chan_desc[minor].parms.sccp
->un.uart.character[trm_char_info->char_cnt] = 0x8000;
}
}
}
}
return rc;
}
#endif
/*
* Handle ioctl request.
*/
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_libio_ioctl_args_t *ioa=arg;
switch (ioa->command) {
#if 0
case CON8XX_IO_SET_TRM_CHAR:
return scc_io_set_trm_char(minor, ioa);
#endif
default:
return rtems_termios_ioctl (arg);
break;
}
}

1
c/src/lib/libbsp/powerpc/tqm8xx/Makefile.am
View File

@@ -32,6 +32,7 @@ librtemsbsp_a_SOURCES +=../../../../../../bsps/powerpc/shared/clock/clock.c
librtemsbsp_a_SOURCES +=../../../../../../bsps/powerpc/tqm8xx/clock/p_clock.c
# console
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-termios.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/tqm8xx/console/console.c
# spi
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/tqm8xx/spi/spi.c