char: use qemu_chr_fe* functions with CharBackend argument

This also switches from qemu_chr_add_handlers() to
qemu_chr_fe_set_handlers(). Note that qemu_chr_fe_set_handlers() now
takes the focus when fe_open (qemu_chr_add_handlers() did take the
focus)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-16-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

3 files changed, 17 insertions, 16 deletions

diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
index 43d9c4b1f0..6f05c98d3e 100644
--- a/hw/arm/omap2.c
+++ b/hw/arm/omap2.c
@@ -771,14 +771,15 @@ static void omap_sti_fifo_write(void *opaque, hwaddr addr,
         /* Flush channel <i>value</i>.  */
         /* XXX this blocks entire thread. Rewrite to use
          * qemu_chr_fe_write and background I/O callbacks */
-        qemu_chr_fe_write_all(s->chr.chr, (const uint8_t *) "\r", 1);
+        qemu_chr_fe_write_all(&s->chr, (const uint8_t *) "\r", 1);
     } else if (ch == STI_TRACE_CONSOLE_CHANNEL || 1) {
         if (value == 0xc0 || value == 0xc3) {
             /* Open channel <i>ch</i>.  */
-        } else if (value == 0x00)
-            qemu_chr_fe_write_all(s->chr.chr, (const uint8_t *) "\n", 1);
-        else
-            qemu_chr_fe_write_all(s->chr.chr, &byte, 1);
+        } else if (value == 0x00) {
+            qemu_chr_fe_write_all(&s->chr, (const uint8_t *) "\n", 1);
+        } else {
+            qemu_chr_fe_write_all(&s->chr, &byte, 1);
+        }
     }
 }
 
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index 27f112c3fb..798c05bf29 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -1906,7 +1906,7 @@ static void pxa2xx_fir_write(void *opaque, hwaddr addr,
         if (s->chr.chr && s->enable && (s->control[0] & (1 << 3))) { /* TXE */
             /* XXX this blocks entire thread. Rewrite to use
              * qemu_chr_fe_write and background I/O callbacks */
-            qemu_chr_fe_write_all(s->chr.chr, &ch, 1);
+            qemu_chr_fe_write_all(&s->chr, &ch, 1);
         }
         break;
     case ICSR0:
@@ -1977,8 +1977,8 @@ static void pxa2xx_fir_realize(DeviceState *dev, Error **errp)
 
     if (s->chr.chr) {
         qemu_chr_fe_claim_no_fail(s->chr.chr);
-        qemu_chr_add_handlers(s->chr.chr, pxa2xx_fir_is_empty,
-                        pxa2xx_fir_rx, pxa2xx_fir_event, s);
+        qemu_chr_fe_set_handlers(&s->chr, pxa2xx_fir_is_empty,
+                                 pxa2xx_fir_rx, pxa2xx_fir_event, s, NULL);
     }
 }
 
diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
index d3e8aff4d7..fd13a39cf9 100644
--- a/hw/arm/strongarm.c
+++ b/hw/arm/strongarm.c
@@ -1021,7 +1021,7 @@ static void strongarm_uart_update_parameters(StrongARMUARTState *s)
     ssp.stop_bits = stop_bits;
     s->char_transmit_time =  (NANOSECONDS_PER_SECOND / speed) * frame_size;
     if (s->chr.chr) {
-        qemu_chr_fe_ioctl(s->chr.chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
+        qemu_chr_fe_ioctl(&s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
     }
 
     DPRINTF(stderr, "%s speed=%d parity=%c data=%d stop=%d\n", s->chr->label,
@@ -1107,10 +1107,10 @@ static void strongarm_uart_tx(void *opaque)
 
     if (s->utcr3 & UTCR3_LBM) /* loopback */ {
         strongarm_uart_receive(s, &s->tx_fifo[s->tx_start], 1);
-    } else if (s->chr.chr) {
+    } else if (qemu_chr_fe_get_driver(&s->chr)) {
         /* XXX this blocks entire thread. Rewrite to use
          * qemu_chr_fe_write and background I/O callbacks */
-        qemu_chr_fe_write_all(s->chr.chr, &s->tx_fifo[s->tx_start], 1);
+        qemu_chr_fe_write_all(&s->chr, &s->tx_fifo[s->tx_start], 1);
     }
 
     s->tx_start = (s->tx_start + 1) % 8;
@@ -1240,11 +1240,11 @@ static void strongarm_uart_init(Object *obj)
     s->tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, strongarm_uart_tx, s);
 
     if (s->chr.chr) {
-        qemu_chr_add_handlers(s->chr.chr,
-                        strongarm_uart_can_receive,
-                        strongarm_uart_receive,
-                        strongarm_uart_event,
-                        s);
+        qemu_chr_fe_set_handlers(&s->chr,
+                                 strongarm_uart_can_receive,
+                                 strongarm_uart_receive,
+                                 strongarm_uart_event,
+                                 s, NULL);
     }
 }