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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Corey Minyard" <cminyard@mvista.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"KONRAD Frederic" <frederic.konrad@adacore.com>,
	qemu-arm@nongnu.org, qemu-ppc@nongnu.org
Subject: [PATCH v4 09/15] hw/misc/auxbus: Replace 'is_write' boolean by its value
Date: Wed, 16 Jun 2021 23:42:48 +0200	[thread overview]
Message-ID: <20210616214254.2647796-10-f4bug@amsat.org> (raw)
In-Reply-To: <20210616214254.2647796-1-f4bug@amsat.org>

Remove the 'is_write' boolean by directly using its value in place.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/misc/auxbus.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/hw/misc/auxbus.c b/hw/misc/auxbus.c
index 9cc9cf3be32..d96219aef88 100644
--- a/hw/misc/auxbus.c
+++ b/hw/misc/auxbus.c
@@ -106,7 +106,6 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
     AUXReply ret = AUX_NACK;
     I2CBus *i2c_bus = aux_get_i2c_bus(bus);
     size_t i;
-    bool is_write = false;
 
     DPRINTF("request at address 0x%" PRIX32 ", command %u, len %u\n", address,
             cmd, len);
@@ -117,11 +116,10 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      */
     case WRITE_AUX:
     case READ_AUX:
-        is_write = cmd == READ_AUX ? false : true;
         for (i = 0; i < len; i++) {
             if (!address_space_rw(&bus->aux_addr_space, address++,
                                   MEMTXATTRS_UNSPECIFIED, data++, 1,
-                                  is_write)) {
+                                  cmd == WRITE_AUX)) {
                 ret = AUX_I2C_ACK;
             } else {
                 ret = AUX_NACK;
@@ -133,19 +131,18 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      * Classic I2C transactions..
      */
     case READ_I2C:
-        is_write = cmd == READ_I2C ? false : true;
         if (i2c_bus_busy(i2c_bus)) {
             i2c_end_transfer(i2c_bus);
         }
 
-        if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+        if (i2c_start_transfer(i2c_bus, address, true)) {
             ret = AUX_I2C_NACK;
             break;
         }
 
         ret = AUX_I2C_ACK;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, false) < 0) {
                 ret = AUX_I2C_NACK;
                 break;
             }
@@ -154,19 +151,18 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         i2c_end_transfer(i2c_bus);
         break;
     case WRITE_I2C:
-        is_write = cmd == READ_I2C ? false : true;
         if (i2c_bus_busy(i2c_bus)) {
             i2c_end_transfer(i2c_bus);
         }
 
-        if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+        if (i2c_start_transfer(i2c_bus, address, false)) {
             ret = AUX_I2C_NACK;
             break;
         }
 
         ret = AUX_I2C_ACK;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, true) < 0) {
                 ret = AUX_I2C_NACK;
                 break;
             }
@@ -183,13 +179,12 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      *  - We changed the address.
      */
     case WRITE_I2C_MOT:
-        is_write = cmd == READ_I2C_MOT ? false : true;
         ret = AUX_I2C_NACK;
         if (!i2c_bus_busy(i2c_bus)) {
             /*
              * No transactions started..
              */
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, false)) {
                 break;
             }
         } else if ((address != bus->last_i2c_address) ||
@@ -198,7 +193,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
              * Transaction started but we need to restart..
              */
             i2c_end_transfer(i2c_bus);
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, false)) {
                 break;
             }
         }
@@ -206,7 +201,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         bus->last_transaction = cmd;
         bus->last_i2c_address = address;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, true) < 0) {
                 i2c_end_transfer(i2c_bus);
                 break;
             }
@@ -217,13 +212,12 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         }
         break;
     case READ_I2C_MOT:
-        is_write = cmd == READ_I2C_MOT ? false : true;
         ret = AUX_I2C_NACK;
         if (!i2c_bus_busy(i2c_bus)) {
             /*
              * No transactions started..
              */
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, true)) {
                 break;
             }
         } else if ((address != bus->last_i2c_address) ||
@@ -232,7 +226,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
              * Transaction started but we need to restart..
              */
             i2c_end_transfer(i2c_bus);
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, true)) {
                 break;
             }
         }
@@ -240,7 +234,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         bus->last_transaction = cmd;
         bus->last_i2c_address = address;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, false) < 0) {
                 i2c_end_transfer(i2c_bus);
                 break;
             }
-- 
2.31.1



  parent reply	other threads:[~2021-06-16 21:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16 21:42 [PATCH v4 00/15] hw/i2c: Remove confusing i2c_send_recv() API Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 01/15] hw/input/lm832x: Move lm832x_key_event() declaration to "lm832x.h" Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 02/15] hw/input/lm832x: Define TYPE_LM8323 in public header Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 03/15] hw/display/sm501: Simplify sm501_i2c_write() logic Philippe Mathieu-Daudé
2021-06-16 23:15   ` BALATON Zoltan
2021-06-16 21:42 ` [PATCH v4 04/15] hw/display/sm501: Replace i2c_send_recv() by i2c_recv() & i2c_send() Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 05/15] hw/i2c/ppc4xx_i2c: Add reference to datasheet Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 06/15] hw/i2c/ppc4xx_i2c: Replace i2c_send_recv() by i2c_recv() & i2c_send() Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 07/15] hw/misc/auxbus: Fix MOT/classic I2C mode Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 08/15] hw/misc/auxbus: Explode READ_I2C / WRITE_I2C_MOT cases Philippe Mathieu-Daudé
2021-06-16 21:42 ` Philippe Mathieu-Daudé [this message]
2021-06-16 21:42 ` [PATCH v4 10/15] hw/misc/auxbus: Replace i2c_send_recv() by i2c_recv() & i2c_send() Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 11/15] hw/i2c: Remove confusing i2c_send_recv() Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 12/15] hw/i2c: Rename i2c_set_slave_address() -> i2c_slave_set_address() Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 13/15] hw/i2c: Make i2c_start_transfer() direction argument a boolean Philippe Mathieu-Daudé
2021-06-16 21:42 ` [PATCH v4 14/15] hw/i2c: Extract i2c_do_start_transfer() from i2c_start_transfer() Philippe Mathieu-Daudé
2021-06-17  0:21   ` Richard Henderson
2021-06-16 21:42 ` [PATCH v4 15/15] hw/i2c: Introduce i2c_start_recv() and i2c_start_send() Philippe Mathieu-Daudé
2021-06-17  0:23   ` Richard Henderson

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