Signed-off-by: Peter Delevoryas <pdel@fb.com>
---
hw/misc/fby35_cpld.c | 137 +++++++++++++++++++++++++++++++++++++++++++
hw/misc/meson.build | 3 +-
2 files changed, 139 insertions(+), 1 deletion(-)
create mode 100644 hw/misc/fby35_cpld.c
diff --git a/hw/misc/fby35_cpld.c b/hw/misc/fby35_cpld.c
new file mode 100644
index 0000000000..a783a0a2c8
--- /dev/null
+++ b/hw/misc/fby35_cpld.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/i2c/i2c.h"
+#include "hw/registerfields.h"
+
+#define BOARD_ID_CLASS1 0b0000
+#define BOARD_ID_CLASS2 0b0001
+
+#define TYPE_FBY35_CPLD "fby35-cpld"
+OBJECT_DECLARE_SIMPLE_TYPE(Fby35CpldState, FBY35_CPLD);
+
+REG8(CLASS_TYPE, 0x5);
+ FIELD(CLASS_TYPE, RESERVED, 0, 2);
+ FIELD(CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 2, 1);
+ FIELD(CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 3, 1);
+ FIELD(CLASS_TYPE, BOARD_ID, 4, 4);
+REG8(BOARD_REVISION, 0x8);
+ FIELD(BOARD_REVISION, VALUE, 0, 4);
+ FIELD(BOARD_REVISION, RESERVED, 4, 4);
+
+struct Fby35CpldState {
+ I2CSlave parent_obj;
+
+ uint8_t target_reg;
+ uint32_t regs[10];
+};
+
+static void fby35_cpld_realize(DeviceState *dev, Error **errp)
+{
+ Fby35CpldState *s = FBY35_CPLD(dev);
+
+ memset(s->regs, 0, sizeof(s->regs));
+ s->target_reg = 0;
+
+ ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, BOARD_ID, 0b0000);
+ ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 1);
+ ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 1);
+ ARRAY_FIELD_DP32(s->regs, BOARD_REVISION, VALUE, 0x1);
+}
+
+static int fby35_cpld_i2c_event(I2CSlave *i2c, enum i2c_event event)
+{
+ Fby35CpldState *s = FBY35_CPLD(i2c);
+
+ switch (event) {
+ case I2C_START_RECV:
+ break;
+ case I2C_START_SEND:
+ s->target_reg = 0;
+ break;
+ case I2C_START_SEND_ASYNC:
+ case I2C_FINISH:
+ case I2C_NACK:
+ break;
+ }
+
+ return 0;
+}
+
+static uint8_t fby35_cpld_i2c_recv(I2CSlave *i2c)
+{
+ Fby35CpldState *s = FBY35_CPLD(i2c);
+
+ switch (s->target_reg) {
+ case R_CLASS_TYPE:
+ case R_BOARD_REVISION:
+ return s->regs[s->target_reg];
+ default:
+ printf("%s: unexpected register read 0x%02x\n", __func__, s->target_reg);
+ return 0xff;
+ }
+}
+
+static int fby35_cpld_i2c_send(I2CSlave *i2c, uint8_t data)
+{
+ Fby35CpldState *s = FBY35_CPLD(i2c);
+
+ if (s->target_reg == 0) {
+ s->target_reg = data;
+ return 0;
+ }
+
+ switch (s->target_reg) {
+ case R_CLASS_TYPE:
+ case R_BOARD_REVISION:
+ s->regs[s->target_reg] = data;
+ break;
+ default:
+ printf("%s: unexpected register write 0x%02x 0x%02x\n", __func__, s->target_reg, data);
+ break;
+ }
+
+ return 0;
+}
+
+static void fby35_cpld_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ I2CSlaveClass *i2c = I2C_SLAVE_CLASS(oc);
+
+ dc->realize = fby35_cpld_realize;
+ i2c->event = fby35_cpld_i2c_event;
+ i2c->recv = fby35_cpld_i2c_recv;
+ i2c->send = fby35_cpld_i2c_send;
+}
+
+static const TypeInfo types[] = {
+ {
+ .name = TYPE_FBY35_CPLD,
+ .parent = TYPE_I2C_SLAVE,
+ .instance_size = sizeof(Fby35CpldState),
+ .class_init = fby35_cpld_class_init,
+ },
+};
+
+DEFINE_TYPES(types);
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 95268eddc0..1edad44b6b 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -117,7 +117,8 @@ softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
'aspeed_sbc.c',
'aspeed_sdmc.c',
'aspeed_xdma.c',
- 'aspeed_peci.c'))
+ 'aspeed_peci.c',
+ 'fby35_cpld.c'))
softmmu_ss.add(when: 'CONFIG_MSF2', if_true: files('msf2-sysreg.c'))
softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_rng.c'))
--
2.30.2On 6/27/22 21:55, Peter Delevoryas wrote:
> Signed-off-by: Peter Delevoryas <pdel@fb.com>
some intro ?
> ---
> hw/misc/fby35_cpld.c | 137 +++++++++++++++++++++++++++++++++++++++++++
> hw/misc/meson.build | 3 +-
> 2 files changed, 139 insertions(+), 1 deletion(-)
> create mode 100644 hw/misc/fby35_cpld.c
>
> diff --git a/hw/misc/fby35_cpld.c b/hw/misc/fby35_cpld.c
> new file mode 100644
> index 0000000000..a783a0a2c8
> --- /dev/null
> +++ b/hw/misc/fby35_cpld.c
> @@ -0,0 +1,137 @@
> +/*
> + * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com)
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a copy
> + * of this software and associated documentation files (the "Software"), to deal
> + * in the Software without restriction, including without limitation the rights
> + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> + * copies of the Software, and to permit persons to whom the Software is
> + * furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
> + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> + * THE SOFTWARE.
> + */
I prefer the short version of the license.
> +#include "qemu/osdep.h"
> +#include "hw/i2c/i2c.h"
> +#include "hw/registerfields.h"
> +
> +#define BOARD_ID_CLASS1 0b0000
> +#define BOARD_ID_CLASS2 0b0001
> +
> +#define TYPE_FBY35_CPLD "fby35-cpld"
> +OBJECT_DECLARE_SIMPLE_TYPE(Fby35CpldState, FBY35_CPLD);
> +
> +REG8(CLASS_TYPE, 0x5);
> + FIELD(CLASS_TYPE, RESERVED, 0, 2);
> + FIELD(CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 2, 1);
> + FIELD(CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 3, 1);
> + FIELD(CLASS_TYPE, BOARD_ID, 4, 4);
> +REG8(BOARD_REVISION, 0x8);
> + FIELD(BOARD_REVISION, VALUE, 0, 4);
> + FIELD(BOARD_REVISION, RESERVED, 4, 4);
> +
> +struct Fby35CpldState {
> + I2CSlave parent_obj;
> +
> + uint8_t target_reg;
> + uint32_t regs[10];
> +};
> +
> +static void fby35_cpld_realize(DeviceState *dev, Error **errp)
> +{
> + Fby35CpldState *s = FBY35_CPLD(dev);
> +
> + memset(s->regs, 0, sizeof(s->regs));
> + s->target_reg = 0;
> +
> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, BOARD_ID, 0b0000);
> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 1);
> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 1);
> + ARRAY_FIELD_DP32(s->regs, BOARD_REVISION, VALUE, 0x1);
> +}
> +
> +static int fby35_cpld_i2c_event(I2CSlave *i2c, enum i2c_event event)
> +{
> + Fby35CpldState *s = FBY35_CPLD(i2c);
> +
> + switch (event) {
> + case I2C_START_RECV:
> + break;
> + case I2C_START_SEND:
> + s->target_reg = 0;
> + break;
> + case I2C_START_SEND_ASYNC:
> + case I2C_FINISH:
> + case I2C_NACK:
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static uint8_t fby35_cpld_i2c_recv(I2CSlave *i2c)
> +{
> + Fby35CpldState *s = FBY35_CPLD(i2c);
> +
> + switch (s->target_reg) {
> + case R_CLASS_TYPE:
> + case R_BOARD_REVISION:
> + return s->regs[s->target_reg];
> + default:
> + printf("%s: unexpected register read 0x%02x\n", __func__, s->target_reg);
please use the qemu logging system
> + return 0xff;
> + }
> +}
> +
> +static int fby35_cpld_i2c_send(I2CSlave *i2c, uint8_t data)
> +{
> + Fby35CpldState *s = FBY35_CPLD(i2c);
> +
> + if (s->target_reg == 0) {
> + s->target_reg = data;
> + return 0;
> + }
> +
> + switch (s->target_reg) {
> + case R_CLASS_TYPE:
> + case R_BOARD_REVISION:
> + s->regs[s->target_reg] = data;
> + break;
> + default:
> + printf("%s: unexpected register write 0x%02x 0x%02x\n", __func__, s->target_reg, data);
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static void fby35_cpld_class_init(ObjectClass *oc, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(oc);
> + I2CSlaveClass *i2c = I2C_SLAVE_CLASS(oc);
> +
> + dc->realize = fby35_cpld_realize;
> + i2c->event = fby35_cpld_i2c_event;
> + i2c->recv = fby35_cpld_i2c_recv;
> + i2c->send = fby35_cpld_i2c_send;
> +}
> +
> +static const TypeInfo types[] = {
> + {
> + .name = TYPE_FBY35_CPLD,
> + .parent = TYPE_I2C_SLAVE,
> + .instance_size = sizeof(Fby35CpldState),
> + .class_init = fby35_cpld_class_init,
> + },
> +};
> +
> +DEFINE_TYPES(types);
> diff --git a/hw/misc/meson.build b/hw/misc/meson.build
> index 95268eddc0..1edad44b6b 100644
> --- a/hw/misc/meson.build
> +++ b/hw/misc/meson.build
> @@ -117,7 +117,8 @@ softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
> 'aspeed_sbc.c',
> 'aspeed_sdmc.c',
> 'aspeed_xdma.c',
> - 'aspeed_peci.c'))
> + 'aspeed_peci.c',
> + 'fby35_cpld.c'))
>
> softmmu_ss.add(when: 'CONFIG_MSF2', if_true: files('msf2-sysreg.c'))
> softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_rng.c'))
> On Jun 27, 2022, at 11:50 PM, Cédric Le Goater <clg@kaod.org> wrote:
>
> On 6/27/22 21:55, Peter Delevoryas wrote:
>> Signed-off-by: Peter Delevoryas <pdel@fb.com>
>
>
> some intro ?
Will do.
>
>> ---
>> hw/misc/fby35_cpld.c | 137 +++++++++++++++++++++++++++++++++++++++++++
>> hw/misc/meson.build | 3 +-
>> 2 files changed, 139 insertions(+), 1 deletion(-)
>> create mode 100644 hw/misc/fby35_cpld.c
>> diff --git a/hw/misc/fby35_cpld.c b/hw/misc/fby35_cpld.c
>> new file mode 100644
>> index 0000000000..a783a0a2c8
>> --- /dev/null
>> +++ b/hw/misc/fby35_cpld.c
>> @@ -0,0 +1,137 @@
>> +/*
>> + * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com)
>> + *
>> + * Permission is hereby granted, free of charge, to any person obtaining a copy
>> + * of this software and associated documentation files (the "Software"), to deal
>> + * in the Software without restriction, including without limitation the rights
>> + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
>> + * copies of the Software, and to permit persons to whom the Software is
>> + * furnished to do so, subject to the following conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
>> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
>> + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
>> + * THE SOFTWARE.
>> + */
>
> I prefer the short version of the license.
Oh, yes, I can see if I can reduce this. To be honest I was copying this
from our legal wiki, and I’m not that familiar with licensing or what
shortening it implies, but I can look into that.
>
>> +#include "qemu/osdep.h"
>> +#include "hw/i2c/i2c.h"
>> +#include "hw/registerfields.h"
>> +
>> +#define BOARD_ID_CLASS1 0b0000
>> +#define BOARD_ID_CLASS2 0b0001
>> +
>> +#define TYPE_FBY35_CPLD "fby35-cpld"
>> +OBJECT_DECLARE_SIMPLE_TYPE(Fby35CpldState, FBY35_CPLD);
>> +
>> +REG8(CLASS_TYPE, 0x5);
>> + FIELD(CLASS_TYPE, RESERVED, 0, 2);
>> + FIELD(CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 2, 1);
>> + FIELD(CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 3, 1);
>> + FIELD(CLASS_TYPE, BOARD_ID, 4, 4);
>> +REG8(BOARD_REVISION, 0x8);
>> + FIELD(BOARD_REVISION, VALUE, 0, 4);
>> + FIELD(BOARD_REVISION, RESERVED, 4, 4);
>> +
>> +struct Fby35CpldState {
>> + I2CSlave parent_obj;
>> +
>> + uint8_t target_reg;
>> + uint32_t regs[10];
>> +};
>> +
>> +static void fby35_cpld_realize(DeviceState *dev, Error **errp)
>> +{
>> + Fby35CpldState *s = FBY35_CPLD(dev);
>> +
>> + memset(s->regs, 0, sizeof(s->regs));
>> + s->target_reg = 0;
>> +
>> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, BOARD_ID, 0b0000);
>> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 1OU_EXPANSION_NOT_PRESENT, 1);
>> + ARRAY_FIELD_DP32(s->regs, CLASS_TYPE, 2OU_EXPANSION_NOT_PRESENT, 1);
>> + ARRAY_FIELD_DP32(s->regs, BOARD_REVISION, VALUE, 0x1);
>> +}
>> +
>> +static int fby35_cpld_i2c_event(I2CSlave *i2c, enum i2c_event event)
>> +{
>> + Fby35CpldState *s = FBY35_CPLD(i2c);
>> +
>> + switch (event) {
>> + case I2C_START_RECV:
>> + break;
>> + case I2C_START_SEND:
>> + s->target_reg = 0;
>> + break;
>> + case I2C_START_SEND_ASYNC:
>> + case I2C_FINISH:
>> + case I2C_NACK:
>> + break;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static uint8_t fby35_cpld_i2c_recv(I2CSlave *i2c)
>> +{
>> + Fby35CpldState *s = FBY35_CPLD(i2c);
>> +
>> + switch (s->target_reg) {
>> + case R_CLASS_TYPE:
>> + case R_BOARD_REVISION:
>> + return s->regs[s->target_reg];
>> + default:
>> + printf("%s: unexpected register read 0x%02x\n", __func__, s->target_reg);
>
> please use the qemu logging system
Yes, sorry about that, I’ll fix this. In the future I’ll probably
try to just use qemu_log from the start, to avoid these.
>
>> + return 0xff;
>> + }
>> +}
>> +
>> +static int fby35_cpld_i2c_send(I2CSlave *i2c, uint8_t data)
>> +{
>> + Fby35CpldState *s = FBY35_CPLD(i2c);
>> +
>> + if (s->target_reg == 0) {
>> + s->target_reg = data;
>> + return 0;
>> + }
>> +
>> + switch (s->target_reg) {
>> + case R_CLASS_TYPE:
>> + case R_BOARD_REVISION:
>> + s->regs[s->target_reg] = data;
>> + break;
>> + default:
>> + printf("%s: unexpected register write 0x%02x 0x%02x\n", __func__, s->target_reg, data);
>> + break;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static void fby35_cpld_class_init(ObjectClass *oc, void *data)
>> +{
>> + DeviceClass *dc = DEVICE_CLASS(oc);
>> + I2CSlaveClass *i2c = I2C_SLAVE_CLASS(oc);
>> +
>> + dc->realize = fby35_cpld_realize;
>> + i2c->event = fby35_cpld_i2c_event;
>> + i2c->recv = fby35_cpld_i2c_recv;
>> + i2c->send = fby35_cpld_i2c_send;
>> +}
>> +
>> +static const TypeInfo types[] = {
>> + {
>> + .name = TYPE_FBY35_CPLD,
>> + .parent = TYPE_I2C_SLAVE,
>> + .instance_size = sizeof(Fby35CpldState),
>> + .class_init = fby35_cpld_class_init,
>> + },
>> +};
>> +
>> +DEFINE_TYPES(types);
>> diff --git a/hw/misc/meson.build b/hw/misc/meson.build
>> index 95268eddc0..1edad44b6b 100644
>> --- a/hw/misc/meson.build
>> +++ b/hw/misc/meson.build
>> @@ -117,7 +117,8 @@ softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
>> 'aspeed_sbc.c',
>> 'aspeed_sdmc.c',
>> 'aspeed_xdma.c',
>> - 'aspeed_peci.c'))
>> + 'aspeed_peci.c',
>> + 'fby35_cpld.c'))
>> softmmu_ss.add(when: 'CONFIG_MSF2', if_true: files('msf2-sysreg.c'))
>> softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_rng.c'))
>
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