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console: Cleanup console API

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Use a more generic console_init() instead of potato_uart_init(),
and do the same for interrupt control. There should be no
change in behaviour.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
jtag-port
Benjamin Herrenschmidt 4 years ago
parent 7575b1e0c2
commit e3941109af
16 changed files with 93 additions and 69 deletions
Show Stats Download Patch File Download Diff File

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hello_world/hello_world.bin
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2
hello_world/hello_world.c
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@ -7,7 +7,7 @@

int main(void)
{
potato_uart_init();
console_init();

puts(HELLO_WORLD);


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hello_world/hello_world.elf
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105
hello_world/hello_world.hex
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@ -514,67 +514,68 @@ e8010010ebc1fff0
7c0803a6ebe1fff8
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7fe3fb7860000000
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480001295463063e
f821ffe1f8010010
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386372783c62ffff
600000004800018d
60000000480000f9
480001355463063e
4bffffec60000000
0100000000000000
3c40000100000180
3c40000100000080
3d20c0003842a000
6129200060000000
f922800079290020
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7d295392614a2000
394a0018e9428000
7c0004ac3929ffff
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3929ffff394a0018
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0000000000000000
3842a0003c400001
419e00082fa40000
6000000060630002
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000000004e800020
0000000000000000
3842a0003c400001
e922800060000000
3929002039400000
7d404fea7c0004ac
000000004e800020
0000000000000000
3842a0003c400001
e922800060000000
7c0004ac39290010
712900017d204eea
e86280004082ffe8
7c0004ac38630008
5463063e7c601eea
000000004e800020
0000000000000000
3842a0003c400001
e922800060000000
7c0004ac39290010
712900087d204eea
5469063e4082ffe8
7c0004ace9428000
4e8000207d2057ea
0000000000000000
3c40000100000000
600000003842a000
394000ffe9228000
7c0004ac39290020
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0000000000000000
3c40000100000000
600000003842a000
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0000000000000000
3c40000100000000
600000003842a000
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38630008e8628000
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0000000000000000
3c40000100000000
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7c0004ace9228000
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0000000000000000
3c40000100000000
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0100000000000000
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@ -582,5 +583,11 @@ f821ffd1f8010010
392900014e800020
000000004bffffe8
0000000000000000
3842a0003c400001
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0000000000000000
3842a0003c400001
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0000000000000000
6f57206f6c6c6548
0000000a0d646c72
000000000a646c72

5
include/console.h
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@ -1,8 +1,7 @@
#include <stddef.h>

void potato_uart_init(void);
void potato_uart_irq_en(void);
void potato_uart_irq_dis(void);
void console_init(void);
void console_set_irq_en(bool rx_irq, bool tx_irq);
int getchar(void);
int putchar(int c);
int puts(const char *str);

2
include/microwatt_soc.h
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@ -69,6 +69,8 @@
#define POTATO_CONSOLE_STATUS_TX_FULL 0x08
#define POTATO_CONSOLE_CLOCK_DIV 0x18
#define POTATO_CONSOLE_IRQ_EN 0x20
#define POTATO_CONSOLE_IRQ_RX 0x01
#define POTATO_CONSOLE_IRQ_TX 0x02

/*
* Register definitionss for our standard (16550 style) UART

20
lib/console.c
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@ -80,9 +80,15 @@ void potato_uart_init(void)
potato_uart_reg_write(POTATO_CONSOLE_CLOCK_DIV, potato_uart_divisor(proc_freq, UART_FREQ));
}

void potato_uart_irq_en(void)
void potato_uart_set_irq_en(bool rx_irq, bool tx_irq)
{
potato_uart_reg_write(POTATO_CONSOLE_IRQ_EN, 0xff);
uint64_t en = 0;

if (rx_irq)
en |= POTATO_CONSOLE_IRQ_RX;
if (tx_irq)
en |= POTATO_CONSOLE_IRQ_TX;
potato_uart_reg_write(POTATO_CONSOLE_IRQ_EN, en);
}

void potato_uart_irq_dis(void)
@ -131,3 +137,13 @@ size_t strlen(const char *s)
return len;
}
#endif

void console_init(void)
{
potato_uart_init();
}

void console_set_irq_en(bool rx_irq, bool tx_irq)
{
potato_uart_set_irq_en(rx_irq, tx_irq);
}

2
litedram/gen-src/sdram_init/main.c
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@ -241,7 +241,7 @@ uint64_t main(void)
bool try_flash = false;

/* Init the UART */
potato_uart_init();
console_init();

printf("\n\nWelcome to Microwatt !\n\n");


2
rust_lib_demo/hello_world.c
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@ -25,7 +25,7 @@ void init_bss()
int main(void)
{
init_bss();
potato_uart_init();
console_init();

puts(HELLO_WORLD);


2
tests/decrementer/decrementer.c
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@ -25,7 +25,7 @@ int main(void)
{
int fail = 0;

potato_uart_init();
console_init();

print_test_number(1);
if (dec_test_1() != 0) {

2
tests/illegal/illegal.c
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@ -23,7 +23,7 @@ int main(void)
{
int fail = 0;

potato_uart_init();
console_init();

print_test_number(1);
if (ill_test_1() != 0) {

2
tests/misc/misc.c
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@ -24,7 +24,7 @@ int main(void)
{
int fail = 0;

potato_uart_init();
console_init();

print_test_number(1);
if (test_addpcis_1() != 0) {

2
tests/mmu/mmu.c
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@ -661,7 +661,7 @@ void do_test(int num, int (*test)(void))

int main(void)
{
potato_uart_init();
console_init();
init_mmu();

do_test(1, mmu_test_1);

2
tests/privileged/privileged.c
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@ -228,7 +228,7 @@ void do_test(int num, int (*fn)(unsigned long))

int main(void)
{
potato_uart_init();
console_init();
init_mmu();
map(0x2000, 0x2000, REF | CHG | PERM_RD | PERM_EX); /* map code page */
map(0x7000, 0x7000, REF | CHG | PERM_RD | PERM_WR); /* map stack page */

2
tests/sc/sc.c
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@ -23,7 +23,7 @@ int main(void)
{
int fail = 0;

potato_uart_init();
console_init();

print_test_number(1);
if (sc_test_1() != 0) {

12
tests/xics/xics.c
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@ -83,7 +83,7 @@ void ipi_isr(void) {
void uart_isr(void) {
debug_puts(UART);

potato_uart_irq_dis(); // disable interrupt to ack it
console_set_irq_en(false, false);

isrs_run |= ISR_UART;
}
@ -202,7 +202,7 @@ int xics_test_1(void)
icp_write8(XICS_XIRR, 0x00); // mask all interrupts

// trigger two interrupts
potato_uart_irq_en(); // cause serial interrupt
console_set_irq_en(true,true);// cause serial interrupt
ics_write_xive(0x6, 0); // set source to prio 6
icp_write8(XICS_MFRR, 0x04); // cause ipi interrupt at prio 5

@ -222,7 +222,7 @@ int xics_test_1(void)

// cleanup
icp_write8(XICS_XIRR, 0x00); // mask all interrupts
potato_uart_irq_dis();
console_set_irq_en(false, false);
ics_write_xive(0, 0xff);
isrs_run = 0;

@ -242,7 +242,7 @@ int xics_test_2(void)
assert(isrs_run == 0);

// trigger both
potato_uart_irq_en(); // cause 0x500 interrupt
console_set_irq_en(true, true);
icp_write8(XICS_MFRR, 0x05); // cause 0x500 interrupt

delay();
@ -250,7 +250,7 @@ int xics_test_2(void)

// cleanup
icp_write8(XICS_XIRR, 0x00); // mask all interrupts
potato_uart_irq_dis();
console_set_irq_en(false, false);
isrs_run = 0;

return 0;
@ -307,7 +307,7 @@ int main(void)
int i = 0;
int (*t)(void);

potato_uart_init();
console_init();
ipi_running = false;

/* run the tests */

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