aboutsummaryrefslogtreecommitdiff
path: root/arch/m68k/atari/debug.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/atari/debug.c')
-rw-r--r--arch/m68k/atari/debug.c79
1 files changed, 29 insertions, 50 deletions
diff --git a/arch/m68k/atari/debug.c b/arch/m68k/atari/debug.c
index 043ddbc61c7..03cb5e08d7c 100644
--- a/arch/m68k/atari/debug.c
+++ b/arch/m68k/atari/debug.c
@@ -20,14 +20,6 @@
#include <asm/atarihw.h>
#include <asm/atariints.h>
-/* Flag that Modem1 port is already initialized and used */
-int atari_MFP_init_done;
-EXPORT_SYMBOL(atari_MFP_init_done);
-
-/* Flag that Modem1 port is already initialized and used */
-int atari_SCC_init_done;
-EXPORT_SYMBOL(atari_SCC_init_done);
-
/* Can be set somewhere, if a SCC master reset has already be done and should
* not be repeated; used by kgdb */
int atari_SCC_reset_done;
@@ -42,13 +34,13 @@ static struct console atari_console_driver = {
static inline void ata_mfp_out(char c)
{
- while (!(mfp.trn_stat & 0x80)) /* wait for tx buf empty */
+ while (!(st_mfp.trn_stat & 0x80)) /* wait for tx buf empty */
barrier();
- mfp.usart_dta = c;
+ st_mfp.usart_dta = c;
}
-void atari_mfp_console_write(struct console *co, const char *str,
- unsigned int count)
+static void atari_mfp_console_write(struct console *co, const char *str,
+ unsigned int count)
{
while (count--) {
if (*str == '\n')
@@ -61,13 +53,13 @@ static inline void ata_scc_out(char c)
{
do {
MFPDELAY();
- } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
+ } while (!(atari_scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
MFPDELAY();
- scc.cha_b_data = c;
+ atari_scc.cha_b_data = c;
}
-void atari_scc_console_write(struct console *co, const char *str,
- unsigned int count)
+static void atari_scc_console_write(struct console *co, const char *str,
+ unsigned int count)
{
while (count--) {
if (*str == '\n')
@@ -83,8 +75,8 @@ static inline void ata_midi_out(char c)
acia.mid_data = c;
}
-void atari_midi_console_write(struct console *co, const char *str,
- unsigned int count)
+static void atari_midi_console_write(struct console *co, const char *str,
+ unsigned int count)
{
while (count--) {
if (*str == '\n')
@@ -99,7 +91,7 @@ static int ata_par_out(char c)
/* This a some-seconds timeout in case no printer is connected */
unsigned long i = loops_per_jiffy > 1 ? loops_per_jiffy : 10000000/HZ;
- while ((mfp.par_dt_reg & 1) && --i) /* wait for BUSY == L */
+ while ((st_mfp.par_dt_reg & 1) && --i) /* wait for BUSY == L */
;
if (!i)
return 0;
@@ -136,21 +128,21 @@ static void atari_par_console_write(struct console *co, const char *str,
}
}
-#ifdef CONFIG_SERIAL_CONSOLE
+#if 0
int atari_mfp_console_wait_key(struct console *co)
{
- while (!(mfp.rcv_stat & 0x80)) /* wait for rx buf filled */
+ while (!(st_mfp.rcv_stat & 0x80)) /* wait for rx buf filled */
barrier();
- return mfp.usart_dta;
+ return st_mfp.usart_dta;
}
int atari_scc_console_wait_key(struct console *co)
{
do {
MFPDELAY();
- } while (!(scc.cha_b_ctrl & 0x01)); /* wait for rx buf filled */
+ } while (!(atari_scc.cha_b_ctrl & 0x01)); /* wait for rx buf filled */
MFPDELAY();
- return scc.cha_b_data;
+ return atari_scc.cha_b_data;
}
int atari_midi_console_wait_key(struct console *co)
@@ -166,11 +158,7 @@ int atari_midi_console_wait_key(struct console *co)
* SCC serial ports. They're used by the debugging interface, kgdb, and the
* serial console code.
*/
-#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_mfp_port(int cflag)
-#else
-void atari_init_mfp_port(int cflag)
-#endif
{
/*
* timer values for 1200...115200 bps; > 38400 select 110, 134, or 150
@@ -187,21 +175,19 @@ void atari_init_mfp_port(int cflag)
baud = B9600; /* use default 9600bps for non-implemented rates */
baud -= B1200; /* baud_table[] starts at 1200bps */
- mfp.trn_stat &= ~0x01; /* disable TX */
- mfp.usart_ctr = parity | csize | 0x88; /* 1:16 clk mode, 1 stop bit */
- mfp.tim_ct_cd &= 0x70; /* stop timer D */
- mfp.tim_dt_d = baud_table[baud];
- mfp.tim_ct_cd |= 0x01; /* start timer D, 1:4 */
- mfp.trn_stat |= 0x01; /* enable TX */
-
- atari_MFP_init_done = 1;
+ st_mfp.trn_stat &= ~0x01; /* disable TX */
+ st_mfp.usart_ctr = parity | csize | 0x88; /* 1:16 clk mode, 1 stop bit */
+ st_mfp.tim_ct_cd &= 0x70; /* stop timer D */
+ st_mfp.tim_dt_d = baud_table[baud];
+ st_mfp.tim_ct_cd |= 0x01; /* start timer D, 1:4 */
+ st_mfp.trn_stat |= 0x01; /* enable TX */
}
#define SCC_WRITE(reg, val) \
do { \
- scc.cha_b_ctrl = (reg); \
+ atari_scc.cha_b_ctrl = (reg); \
MFPDELAY(); \
- scc.cha_b_ctrl = (val); \
+ atari_scc.cha_b_ctrl = (val); \
MFPDELAY(); \
} while (0)
@@ -214,13 +200,8 @@ void atari_init_mfp_port(int cflag)
MFPDELAY(); \
} while (0)
-#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_scc_port(int cflag)
-#else
-void atari_init_scc_port(int cflag)
-#endif
{
- extern int atari_SCC_reset_done;
static int clksrc_table[9] =
/* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */
{ 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 };
@@ -258,7 +239,7 @@ void atari_init_scc_port(int cflag)
reg3 = (cflag & CSIZE) == CS8 ? 0xc0 : 0x40;
reg5 = (cflag & CSIZE) == CS8 ? 0x60 : 0x20 | 0x82 /* assert DTR/RTS */;
- (void)scc.cha_b_ctrl; /* reset reg pointer */
+ (void)atari_scc.cha_b_ctrl; /* reset reg pointer */
SCC_WRITE(9, 0xc0); /* reset */
LONG_DELAY(); /* extra delay after WR9 access */
SCC_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03)
@@ -277,14 +258,9 @@ void atari_init_scc_port(int cflag)
SCC_WRITE(5, reg5 | 8);
atari_SCC_reset_done = 1;
- atari_SCC_init_done = 1;
}
-#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_midi_port(int cflag)
-#else
-void atari_init_midi_port(int cflag)
-#endif
{
int baud = cflag & CBAUD;
int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00;
@@ -311,6 +287,8 @@ void atari_init_midi_port(int cflag)
static int __init atari_debug_setup(char *arg)
{
+ bool registered;
+
if (!MACH_IS_ATARI)
return 0;
@@ -318,6 +296,7 @@ static int __init atari_debug_setup(char *arg)
/* defaults to ser2 for a Falcon and ser1 otherwise */
arg = MACH_IS_FALCON ? "ser2" : "ser1";
+ registered = !!atari_console_driver.write;
if (!strcmp(arg, "ser1")) {
/* ST-MFP Modem1 serial port */
atari_init_mfp_port(B9600|CS8);
@@ -341,7 +320,7 @@ static int __init atari_debug_setup(char *arg)
sound_ym.wd_data = sound_ym.rd_data_reg_sel | 0x20; /* strobe H */
atari_console_driver.write = atari_par_console_write;
}
- if (atari_console_driver.write)
+ if (atari_console_driver.write && !registered)
register_console(&atari_console_driver);
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 05:07:46 +0000