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ssi: change ssi_slave_init to be a realize ops

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This enables qemu to handle late inits and report errors. All the SSI
slave routine names were changed accordingly. Code was modified to
handle errors when possible (m25p80 and ssi-sd)

Tested with the m25p80 slave object.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467138270-32481-2-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2016-07-04 13:06:37 +01:00 committed by Peter Maydell
parent f4b99537f1
commit 7673bb4cd3
10 changed files with 32 additions and 42 deletions
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12
hw/arm/spitz.c
View file

@ -598,15 +598,13 @@ static uint32_t spitz_lcdtg_transfer(SSISlave *dev, uint32_t value)
return 0;
}
static int spitz_lcdtg_init(SSISlave *dev)
static void spitz_lcdtg_realize(SSISlave *dev, Error **errp)
{
SpitzLCDTG *s = FROM_SSI_SLAVE(SpitzLCDTG, dev);
spitz_lcdtg = s;
s->bl_power = 0;
s->bl_intensity = 0x20;
return 0;
}
/* SSP devices */
@ -666,7 +664,7 @@ static void spitz_adc_temp_on(void *opaque, int line, int level)
max111x_set_input(max1111, MAX1111_BATT_TEMP, 0);
}
static int corgi_ssp_init(SSISlave *d)
static void corgi_ssp_realize(SSISlave *d, Error **errp)
{
DeviceState *dev = DEVICE(d);
CorgiSSPState *s = FROM_SSI_SLAVE(CorgiSSPState, d);
@ -675,8 +673,6 @@ static int corgi_ssp_init(SSISlave *d)
s->bus[0] = ssi_create_bus(dev, "ssi0");
s->bus[1] = ssi_create_bus(dev, "ssi1");
s->bus[2] = ssi_create_bus(dev, "ssi2");
return 0;
}
static void spitz_ssp_attach(PXA2xxState *cpu)
@ -1121,7 +1117,7 @@ static void corgi_ssp_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = corgi_ssp_init;
k->realize = corgi_ssp_realize;
k->transfer = corgi_ssp_transfer;
dc->vmsd = &vmstate_corgi_ssp_regs;
}
@ -1150,7 +1146,7 @@ static void spitz_lcdtg_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = spitz_lcdtg_init;
k->realize = spitz_lcdtg_realize;
k->transfer = spitz_lcdtg_transfer;
dc->vmsd = &vmstate_spitz_lcdtg_regs;
}

5
hw/arm/tosa.c
View file

@ -127,10 +127,9 @@ static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
return 0;
}
static int tosa_ssp_init(SSISlave *dev)
static void tosa_ssp_realize(SSISlave *dev, Error **errp)
{
/* Nothing to do. */
return 0;
}
#define TYPE_TOSA_DAC "tosa_dac"
@ -283,7 +282,7 @@ static void tosa_ssp_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = tosa_ssp_init;
k->realize = tosa_ssp_realize;
k->transfer = tosa_ssp_tansfer;
}

6
hw/arm/z2.c
View file

@ -151,14 +151,12 @@ static void z2_lcd_cs(void *opaque, int line, int level)
z2_lcd->selected = !level;
}
static int zipit_lcd_init(SSISlave *dev)
static void zipit_lcd_realize(SSISlave *dev, Error **errp)
{
ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
z->selected = 0;
z->enabled = 0;
z->pos = 0;
return 0;
}
static VMStateDescription vmstate_zipit_lcd_state = {
@ -181,7 +179,7 @@ static void zipit_lcd_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = zipit_lcd_init;
k->realize = zipit_lcd_realize;
k->transfer = zipit_lcd_transfer;
dc->vmsd = &vmstate_zipit_lcd_state;
}

12
hw/block/m25p80.c
View file

@ -28,6 +28,7 @@
#include "hw/ssi/ssi.h"
#include "qemu/bitops.h"
#include "qemu/log.h"
#include "qapi/error.h"
#ifndef M25P80_ERR_DEBUG
#define M25P80_ERR_DEBUG 0
@ -1132,7 +1133,7 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t tx)
return r;
}
static int m25p80_init(SSISlave *ss)
static void m25p80_realize(SSISlave *ss, Error **errp)
{
DriveInfo *dinfo;
Flash *s = M25P80(ss);
@ -1153,18 +1154,15 @@ static int m25p80_init(SSISlave *ss)
s->storage = blk_blockalign(s->blk, s->size);
/* FIXME: Move to late init */
if (blk_pread(s->blk, 0, s->storage, s->size) != s->size) {
fprintf(stderr, "Failed to initialize SPI flash!\n");
return 1;
error_setg(errp, "failed to read the initial flash content");
return;
}
} else {
DB_PRINT_L(0, "No BDRV - binding to RAM\n");
s->storage = blk_blockalign(NULL, s->size);
memset(s->storage, 0xFF, s->size);
}
return 0;
}
static void m25p80_reset(DeviceState *d)
@ -1224,7 +1222,7 @@ static void m25p80_class_init(ObjectClass *klass, void *data)
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
M25P80Class *mc = M25P80_CLASS(klass);
k->init = m25p80_init;
k->realize = m25p80_realize;
k->transfer = m25p80_transfer8;
k->set_cs = m25p80_cs;
k->cs_polarity = SSI_CS_LOW;

5
hw/display/ads7846.c
View file

@ -133,7 +133,7 @@ static const VMStateDescription vmstate_ads7846 = {
}
};
static int ads7846_init(SSISlave *d)
static void ads7846_realize(SSISlave *d, Error **errp)
{
DeviceState *dev = DEVICE(d);
ADS7846State *s = FROM_SSI_SLAVE(ADS7846State, d);
@ -152,14 +152,13 @@ static int ads7846_init(SSISlave *d)
ads7846_int_update(s);
vmstate_register(NULL, -1, &vmstate_ads7846, s);
return 0;
}
static void ads7846_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = ads7846_init;
k->realize = ads7846_realize;
k->transfer = ads7846_transfer;
}

5
hw/display/ssd0323.c
View file

@ -361,7 +361,7 @@ static const GraphicHwOps ssd0323_ops = {
.gfx_update = ssd0323_update_display,
};
static int ssd0323_init(SSISlave *d)
static void ssd0323_realize(SSISlave *d, Error **errp)
{
DeviceState *dev = DEVICE(d);
ssd0323_state *s = FROM_SSI_SLAVE(ssd0323_state, d);
@ -375,14 +375,13 @@ static int ssd0323_init(SSISlave *d)
register_savevm(dev, "ssd0323_oled", -1, 1,
ssd0323_save, ssd0323_load, s);
return 0;
}
static void ssd0323_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = ssd0323_init;
k->realize = ssd0323_realize;
k->transfer = ssd0323_transfer;
k->cs_polarity = SSI_CS_HIGH;
}

12
hw/misc/max111x.c
View file

@ -147,14 +147,14 @@ static int max111x_init(SSISlave *d, int inputs)
return 0;
}
static int max1110_init(SSISlave *dev)
static void max1110_realize(SSISlave *dev, Error **errp)
{
return max111x_init(dev, 8);
max111x_init(dev, 8);
}
static int max1111_init(SSISlave *dev)
static void max1111_realize(SSISlave *dev, Error **errp)
{
return max111x_init(dev, 4);
max111x_init(dev, 4);
}
void max111x_set_input(DeviceState *dev, int line, uint8_t value)
@ -183,7 +183,7 @@ static void max1110_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = max1110_init;
k->realize = max1110_realize;
}
static const TypeInfo max1110_info = {
@ -196,7 +196,7 @@ static void max1111_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = max1111_init;
k->realize = max1111_realize;
}
static const TypeInfo max1111_info = {

9
hw/sd/ssi-sd.c
View file

@ -15,6 +15,7 @@
#include "sysemu/blockdev.h"
#include "hw/ssi/ssi.h"
#include "hw/sd/sd.h"
#include "qapi/error.h"
//#define DEBUG_SSI_SD 1
@ -249,7 +250,7 @@ static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id)
return 0;
}
static int ssi_sd_init(SSISlave *d)
static void ssi_sd_realize(SSISlave *d, Error **errp)
{
DeviceState *dev = DEVICE(d);
ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, d);
@ -260,17 +261,17 @@ static int ssi_sd_init(SSISlave *d)
dinfo = drive_get_next(IF_SD);
s->sd = sd_init(dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, true);
if (s->sd == NULL) {
return -1;
error_setg(errp, "Device initialization failed.");
return;
}
register_savevm(dev, "ssi_sd", -1, 1, ssi_sd_save, ssi_sd_load, s);
return 0;
}
static void ssi_sd_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = ssi_sd_init;
k->realize = ssi_sd_realize;
k->transfer = ssi_sd_transfer;
k->cs_polarity = SSI_CS_LOW;
}

6
hw/ssi/ssi.c
View file

@ -54,7 +54,7 @@ static uint32_t ssi_transfer_raw_default(SSISlave *dev, uint32_t val)
return 0;
}
static int ssi_slave_init(DeviceState *dev)
static void ssi_slave_realize(DeviceState *dev, Error **errp)
{
SSISlave *s = SSI_SLAVE(dev);
SSISlaveClass *ssc = SSI_SLAVE_GET_CLASS(s);
@ -64,7 +64,7 @@ static int ssi_slave_init(DeviceState *dev)
qdev_init_gpio_in_named(dev, ssi_cs_default, SSI_GPIO_CS, 1);
}
return ssc->init(s);
ssc->realize(s, errp);
}
static void ssi_slave_class_init(ObjectClass *klass, void *data)
@ -72,7 +72,7 @@ static void ssi_slave_class_init(ObjectClass *klass, void *data)
SSISlaveClass *ssc = SSI_SLAVE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
dc->init = ssi_slave_init;
dc->realize = ssi_slave_realize;
dc->bus_type = TYPE_SSI_BUS;
if (!ssc->transfer_raw) {
ssc->transfer_raw = ssi_transfer_raw_default;

2
include/hw/ssi/ssi.h
View file

@ -37,7 +37,7 @@ enum SSICSMode {
struct SSISlaveClass {
DeviceClass parent_class;
int (*init)(SSISlave *dev);
void (*realize)(SSISlave *dev, Error **errp);
/* if you have standard or no CS behaviour, just override transfer.
* This is called when the device cs is active (true by default).