diff options
Diffstat (limited to 'hw')
-rw-r--r-- | hw/ads7846.c | 7 | ||||
-rw-r--r-- | hw/max111x.c | 7 | ||||
-rw-r--r-- | hw/spitz.c | 8 | ||||
-rw-r--r-- | hw/ssd0323.c | 6 | ||||
-rw-r--r-- | hw/ssi-sd.c | 6 | ||||
-rw-r--r-- | hw/ssi.c | 49 | ||||
-rw-r--r-- | hw/ssi.h | 37 | ||||
-rw-r--r-- | hw/stellaris.c | 7 | ||||
-rw-r--r-- | hw/z2.c | 7 |
9 files changed, 118 insertions, 16 deletions
diff --git a/hw/ads7846.c b/hw/ads7846.c index 41c7f101c4..2ea9e55bb5 100644 --- a/hw/ads7846.c +++ b/hw/ads7846.c @@ -119,11 +119,12 @@ static int ads7856_post_load(void *opaque, int version_id) static const VMStateDescription vmstate_ads7846 = { .name = "ads7846", - .version_id = 0, - .minimum_version_id = 0, - .minimum_version_id_old = 0, + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, .post_load = ads7856_post_load, .fields = (VMStateField[]) { + VMSTATE_SSI_SLAVE(ssidev, ADS7846State), VMSTATE_INT32_ARRAY(input, ADS7846State, 8), VMSTATE_INT32(noise, ADS7846State), VMSTATE_INT32(cycle, ADS7846State), diff --git a/hw/max111x.c b/hw/max111x.c index 706d89f4fd..67640f109a 100644 --- a/hw/max111x.c +++ b/hw/max111x.c @@ -99,10 +99,11 @@ static uint32_t max111x_transfer(SSISlave *dev, uint32_t value) static const VMStateDescription vmstate_max111x = { .name = "max111x", - .version_id = 0, - .minimum_version_id = 0, - .minimum_version_id_old = 0, + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, .fields = (VMStateField[]) { + VMSTATE_SSI_SLAVE(ssidev, MAX111xState), VMSTATE_UINT8(tb1, MAX111xState), VMSTATE_UINT8(rb2, MAX111xState), VMSTATE_UINT8(rb3, MAX111xState), diff --git a/hw/spitz.c b/hw/spitz.c index 20e7835191..24346dcd5a 100644 --- a/hw/spitz.c +++ b/hw/spitz.c @@ -1083,10 +1083,11 @@ static TypeInfo spitz_keyboard_info = { static const VMStateDescription vmstate_corgi_ssp_regs = { .name = "corgi-ssp", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, + .version_id = 2, + .minimum_version_id = 2, + .minimum_version_id_old = 2, .fields = (VMStateField []) { + VMSTATE_SSI_SLAVE(ssidev, CorgiSSPState), VMSTATE_UINT32_ARRAY(enable, CorgiSSPState, 3), VMSTATE_END_OF_LIST(), } @@ -1115,6 +1116,7 @@ static const VMStateDescription vmstate_spitz_lcdtg_regs = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField []) { + VMSTATE_SSI_SLAVE(ssidev, SpitzLCDTG), VMSTATE_UINT32(bl_intensity, SpitzLCDTG), VMSTATE_UINT32(bl_power, SpitzLCDTG), VMSTATE_END_OF_LIST(), diff --git a/hw/ssd0323.c b/hw/ssd0323.c index b101c5112c..5d05a35bc2 100644 --- a/hw/ssd0323.c +++ b/hw/ssd0323.c @@ -279,6 +279,7 @@ static void ssd0323_cd(void *opaque, int n, int level) static void ssd0323_save(QEMUFile *f, void *opaque) { + SSISlave *ss = SSI_SLAVE(opaque); ssd0323_state *s = (ssd0323_state *)opaque; int i; @@ -296,10 +297,13 @@ static void ssd0323_save(QEMUFile *f, void *opaque) qemu_put_be32(f, s->remap); qemu_put_be32(f, s->mode); qemu_put_buffer(f, s->framebuffer, sizeof(s->framebuffer)); + + qemu_put_be32(f, ss->cs); } static int ssd0323_load(QEMUFile *f, void *opaque, int version_id) { + SSISlave *ss = SSI_SLAVE(opaque); ssd0323_state *s = (ssd0323_state *)opaque; int i; @@ -321,6 +325,8 @@ static int ssd0323_load(QEMUFile *f, void *opaque, int version_id) s->mode = qemu_get_be32(f); qemu_get_buffer(f, s->framebuffer, sizeof(s->framebuffer)); + ss->cs = qemu_get_be32(f); + return 0; } diff --git a/hw/ssi-sd.c b/hw/ssi-sd.c index b519bdb29a..cbbc645213 100644 --- a/hw/ssi-sd.c +++ b/hw/ssi-sd.c @@ -197,6 +197,7 @@ static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val) static void ssi_sd_save(QEMUFile *f, void *opaque) { + SSISlave *ss = SSI_SLAVE(opaque); ssi_sd_state *s = (ssi_sd_state *)opaque; int i; @@ -209,10 +210,13 @@ static void ssi_sd_save(QEMUFile *f, void *opaque) qemu_put_be32(f, s->arglen); qemu_put_be32(f, s->response_pos); qemu_put_be32(f, s->stopping); + + qemu_put_be32(f, ss->cs); } static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id) { + SSISlave *ss = SSI_SLAVE(opaque); ssi_sd_state *s = (ssi_sd_state *)opaque; int i; @@ -229,6 +233,8 @@ static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id) s->response_pos = qemu_get_be32(f); s->stopping = qemu_get_be32(f); + ss->cs = qemu_get_be32(f); + return 0; } @@ -27,19 +27,55 @@ static const TypeInfo ssi_bus_info = { .instance_size = sizeof(SSIBus), }; +static void ssi_cs_default(void *opaque, int n, int level) +{ + SSISlave *s = SSI_SLAVE(opaque); + bool cs = !!level; + assert(n == 0); + if (s->cs != cs) { + SSISlaveClass *ssc = SSI_SLAVE_GET_CLASS(s); + if (ssc->set_cs) { + ssc->set_cs(s, cs); + } + } + s->cs = cs; +} + +static uint32_t ssi_transfer_raw_default(SSISlave *dev, uint32_t val) +{ + SSISlaveClass *ssc = SSI_SLAVE_GET_CLASS(dev); + + if ((dev->cs && ssc->cs_polarity == SSI_CS_HIGH) || + (!dev->cs && ssc->cs_polarity == SSI_CS_LOW) || + ssc->cs_polarity == SSI_CS_NONE) { + return ssc->transfer(dev, val); + } + return 0; +} + static int ssi_slave_init(DeviceState *dev) { SSISlave *s = SSI_SLAVE(dev); SSISlaveClass *ssc = SSI_SLAVE_GET_CLASS(s); + if (ssc->transfer_raw == ssi_transfer_raw_default && + ssc->cs_polarity != SSI_CS_NONE) { + qdev_init_gpio_in(&s->qdev, ssi_cs_default, 1); + } + return ssc->init(s); } 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->bus_type = TYPE_SSI_BUS; + if (!ssc->transfer_raw) { + ssc->transfer_raw = ssi_transfer_raw_default; + } } static TypeInfo ssi_slave_info = { @@ -74,12 +110,23 @@ uint32_t ssi_transfer(SSIBus *bus, uint32_t val) QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) { SSISlave *slave = SSI_SLAVE(kid->child); ssc = SSI_SLAVE_GET_CLASS(slave); - r |= ssc->transfer(slave, val); + r |= ssc->transfer_raw(slave, val); } return r; } +const VMStateDescription vmstate_ssi_slave = { + .name = "SSISlave", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_BOOL(cs, SSISlave), + VMSTATE_END_OF_LIST() + } +}; + static void ssi_slave_register_types(void) { type_register_static(&ssi_bus_info); @@ -23,21 +23,58 @@ typedef struct SSISlave SSISlave; #define SSI_SLAVE_GET_CLASS(obj) \ OBJECT_GET_CLASS(SSISlaveClass, (obj), TYPE_SSI_SLAVE) +typedef enum { + SSI_CS_NONE = 0, + SSI_CS_LOW, + SSI_CS_HIGH, +} SSICSMode; + /* Slave devices. */ typedef struct SSISlaveClass { DeviceClass parent_class; int (*init)(SSISlave *dev); + + /* if you have standard or no CS behaviour, just override transfer. + * This is called when the device cs is active (true by default). + */ uint32_t (*transfer)(SSISlave *dev, uint32_t val); + /* called when the CS line changes. Optional, devices only need to implement + * this if they have side effects associated with the cs line (beyond + * tristating the txrx lines). + */ + int (*set_cs)(SSISlave *dev, bool select); + /* define whether or not CS exists and is active low/high */ + SSICSMode cs_polarity; + + /* if you have non-standard CS behaviour override this to take control + * of the CS behaviour at the device level. transfer, set_cs, and + * cs_polarity are unused if this is overwritten. Transfer_raw will + * always be called for the device for every txrx access to the parent bus + */ + uint32_t (*transfer_raw)(SSISlave *dev, uint32_t val); } SSISlaveClass; struct SSISlave { DeviceState qdev; + + /* Chip select state */ + bool cs; }; #define SSI_SLAVE_FROM_QDEV(dev) DO_UPCAST(SSISlave, qdev, dev) #define FROM_SSI_SLAVE(type, dev) DO_UPCAST(type, ssidev, dev) +extern const VMStateDescription vmstate_ssi_slave; + +#define VMSTATE_SSI_SLAVE(_field, _state) { \ + .name = (stringify(_field)), \ + .size = sizeof(SSISlave), \ + .vmsd = &vmstate_ssi_slave, \ + .flags = VMS_STRUCT, \ + .offset = vmstate_offset_value(_state, _field, SSISlave), \ +} + DeviceState *ssi_create_slave(SSIBus *bus, const char *name); /* Master interface. */ diff --git a/hw/stellaris.c b/hw/stellaris.c index 562fbbf494..01050d15ff 100644 --- a/hw/stellaris.c +++ b/hw/stellaris.c @@ -1184,10 +1184,11 @@ static uint32_t stellaris_ssi_bus_transfer(SSISlave *dev, uint32_t val) static const VMStateDescription vmstate_stellaris_ssi_bus = { .name = "stellaris_ssi_bus", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, + .version_id = 2, + .minimum_version_id = 2, + .minimum_version_id_old = 2, .fields = (VMStateField[]) { + VMSTATE_SSI_SLAVE(ssidev, stellaris_ssi_bus_state), VMSTATE_INT32(current_dev, stellaris_ssi_bus_state), VMSTATE_END_OF_LIST() } @@ -161,10 +161,11 @@ static int zipit_lcd_init(SSISlave *dev) static VMStateDescription vmstate_zipit_lcd_state = { .name = "zipit-lcd", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, + .version_id = 2, + .minimum_version_id = 2, + .minimum_version_id_old = 2, .fields = (VMStateField[]) { + VMSTATE_SSI_SLAVE(ssidev, ZipitLCD), VMSTATE_INT32(selected, ZipitLCD), VMSTATE_INT32(enabled, ZipitLCD), VMSTATE_BUFFER(buf, ZipitLCD), |