diff options
author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-06-15 21:23:59 +0200 |
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committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-10-26 13:44:58 +0100 |
commit | 435db7ebf54cbae68e45ad0bbf4ff6e9019557aa (patch) | |
tree | 061ea5cabaeea06de8259e4ec2081ea96e188cb6 /hw/misc/mps2-scc.c | |
parent | 65ad1da23e9096418223f7a856992bd491dc7ec3 (diff) |
hw/misc/mps2-scc: Use the LED device
Per the 'ARM MPS2 and MPS2+ FPGA Prototyping Boards Technical
Reference Manual' (100112_0200_07_en):
2.1 Overview of the MPS2 and MPS2+ hardware
The MPS2 and MPS2+ FPGA Prototyping Boards contain the
following components and interfaces:
* User switches and user LEDs:
- Two green LEDs and two push buttons that connect to
the FPGA.
- Eight green LEDs and one 8-way dip switch that connect
to the MCC.
Add the 8 LEDs connected to the MCC.
This replaces the 'mps2_scc_leds' trace events by the generic
'led_set_intensity' event.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-Id: <20200912134041.946260-7-f4bug@amsat.org>
Diffstat (limited to 'hw/misc/mps2-scc.c')
-rw-r--r-- | hw/misc/mps2-scc.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/hw/misc/mps2-scc.c b/hw/misc/mps2-scc.c index 9d0909e7b3..ce1dfe9356 100644 --- a/hw/misc/mps2-scc.c +++ b/hw/misc/mps2-scc.c @@ -20,11 +20,13 @@ #include "qemu/osdep.h" #include "qemu/log.h" #include "qemu/module.h" +#include "qemu/bitops.h" #include "trace.h" #include "hw/sysbus.h" #include "migration/vmstate.h" #include "hw/registerfields.h" #include "hw/misc/mps2-scc.h" +#include "hw/misc/led.h" #include "hw/qdev-properties.h" REG32(CFG0, 0) @@ -152,18 +154,10 @@ static void mps2_scc_write(void *opaque, hwaddr offset, uint64_t value, s->cfg0 = value; break; case A_CFG1: - /* CFG1 bits [7:0] control the board LEDs. We don't currently have - * a mechanism for displaying this graphically, so use a trace event. - */ - trace_mps2_scc_leds(value & 0x80 ? '*' : '.', - value & 0x40 ? '*' : '.', - value & 0x20 ? '*' : '.', - value & 0x10 ? '*' : '.', - value & 0x08 ? '*' : '.', - value & 0x04 ? '*' : '.', - value & 0x02 ? '*' : '.', - value & 0x01 ? '*' : '.'); s->cfg1 = value; + for (size_t i = 0; i < ARRAY_SIZE(s->led); i++) { + led_set_state(s->led[i], extract32(value, i, 1)); + } break; case A_CFGDATA_OUT: s->cfgdata_out = value; @@ -236,6 +230,9 @@ static void mps2_scc_reset(DeviceState *dev) for (i = 0; i < NUM_OSCCLK; i++) { s->oscclk[i] = s->oscclk_reset[i]; } + for (i = 0; i < ARRAY_SIZE(s->led); i++) { + device_cold_reset(DEVICE(s->led[i])); + } } static void mps2_scc_init(Object *obj) @@ -249,6 +246,14 @@ static void mps2_scc_init(Object *obj) static void mps2_scc_realize(DeviceState *dev, Error **errp) { + MPS2SCC *s = MPS2_SCC(dev); + + for (size_t i = 0; i < ARRAY_SIZE(s->led); i++) { + char *name = g_strdup_printf("SCC LED%zu", i); + s->led[i] = led_create_simple(OBJECT(dev), GPIO_POLARITY_ACTIVE_HIGH, + LED_COLOR_GREEN, name); + g_free(name); + } } static const VMStateDescription mps2_scc_vmstate = { |