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[PATCH v4 4/9] hw/sd: Introduce receive_ready() callback
From: |
Bin Meng |
Subject: |
[PATCH v4 4/9] hw/sd: Introduce receive_ready() callback |
Date: |
Thu, 28 Jan 2021 14:30:30 +0800 |
From: Bin Meng <bin.meng@windriver.com>
At present there is a data_ready() callback for the SD data read
path. Let's add a receive_ready() for the SD data write path.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
(no changes since v1)
include/hw/sd/sd.h | 2 ++
hw/sd/core.c | 13 +++++++++++++
hw/sd/sd.c | 6 ++++++
3 files changed, 21 insertions(+)
diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h
index 05ef9b73e5..47360ba4ee 100644
--- a/include/hw/sd/sd.h
+++ b/include/hw/sd/sd.h
@@ -116,6 +116,7 @@ struct SDCardClass {
* Return: byte value read
*/
uint8_t (*read_byte)(SDState *sd);
+ bool (*receive_ready)(SDState *sd);
bool (*data_ready)(SDState *sd);
void (*set_voltage)(SDState *sd, uint16_t millivolts);
uint8_t (*get_dat_lines)(SDState *sd);
@@ -187,6 +188,7 @@ void sdbus_write_data(SDBus *sdbus, const void *buf, size_t
length);
* Read multiple bytes of data on the data lines of a SD bus.
*/
void sdbus_read_data(SDBus *sdbus, void *buf, size_t length);
+bool sdbus_receive_ready(SDBus *sd);
bool sdbus_data_ready(SDBus *sd);
bool sdbus_get_inserted(SDBus *sd);
bool sdbus_get_readonly(SDBus *sd);
diff --git a/hw/sd/core.c b/hw/sd/core.c
index 08c93b5903..30ee62c510 100644
--- a/hw/sd/core.c
+++ b/hw/sd/core.c
@@ -160,6 +160,19 @@ void sdbus_read_data(SDBus *sdbus, void *buf, size_t
length)
}
}
+bool sdbus_receive_ready(SDBus *sdbus)
+{
+ SDState *card = get_card(sdbus);
+
+ if (card) {
+ SDCardClass *sc = SD_CARD_GET_CLASS(card);
+
+ return sc->receive_ready(card);
+ }
+
+ return false;
+}
+
bool sdbus_data_ready(SDBus *sdbus)
{
SDState *card = get_card(sdbus);
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 946036d87c..c99c0e93bb 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -2037,6 +2037,11 @@ uint8_t sd_read_byte(SDState *sd)
return ret;
}
+static bool sd_receive_ready(SDState *sd)
+{
+ return sd->state == sd_receivingdata_state;
+}
+
static bool sd_data_ready(SDState *sd)
{
return sd->state == sd_sendingdata_state;
@@ -2147,6 +2152,7 @@ static void sd_class_init(ObjectClass *klass, void *data)
sc->do_command = sd_do_command;
sc->write_byte = sd_write_byte;
sc->read_byte = sd_read_byte;
+ sc->receive_ready = sd_receive_ready;
sc->data_ready = sd_data_ready;
sc->enable = sd_enable;
sc->get_inserted = sd_get_inserted;
--
2.25.1
- [PATCH v4 0/9] hw/sd: Support block read/write in SPI mode, Bin Meng, 2021/01/28
- [PATCH v4 1/9] hw/sd: ssi-sd: Support multiple block read, Bin Meng, 2021/01/28
- [PATCH v4 2/9] hw/sd: sd: Remove duplicated codes in single/multiple block read/write, Bin Meng, 2021/01/28
- [PATCH v4 3/9] hw/sd: sd: Allow single/multiple block write for SPI mode, Bin Meng, 2021/01/28
- [PATCH v4 4/9] hw/sd: Introduce receive_ready() callback,
Bin Meng <=
- [PATCH v4 5/9] hw/sd: ssi-sd: Support single block write, Bin Meng, 2021/01/28
- [PATCH v4 6/9] hw/sd: ssi-sd: Support multiple block write, Bin Meng, 2021/01/28
- [PATCH v4 7/9] hw/sd: ssi-sd: Fix SEND_IF_COND (CMD8) response, Bin Meng, 2021/01/28
- [PATCH v4 8/9] hw/sd: ssi-sd: Fix STOP_TRANSMISSION (CMD12) response, Bin Meng, 2021/01/28
- [PATCH v4 9/9] hw/sd: ssi-sd: Handle the rest commands with R1b response type, Bin Meng, 2021/01/28