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author | David S. Miller <davem@davemloft.net> | 2008-10-11 15:39:35 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-10-11 15:39:35 -0400 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /drivers/serial/serial_ks8695.c | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'drivers/serial/serial_ks8695.c')
-rw-r--r-- | drivers/serial/serial_ks8695.c | 61 |
1 files changed, 52 insertions, 9 deletions
diff --git a/drivers/serial/serial_ks8695.c b/drivers/serial/serial_ks8695.c index b9cbfc87f616..998e89dc5aaf 100644 --- a/drivers/serial/serial_ks8695.c +++ b/drivers/serial/serial_ks8695.c | |||
@@ -63,8 +63,44 @@ | |||
63 | #define UART_DUMMY_LSR_RX 0x100 | 63 | #define UART_DUMMY_LSR_RX 0x100 |
64 | #define UART_PORT_SIZE (KS8695_USR - KS8695_URRB + 4) | 64 | #define UART_PORT_SIZE (KS8695_USR - KS8695_URRB + 4) |
65 | 65 | ||
66 | #define tx_enabled(port) ((port)->unused[0]) | 66 | static inline int tx_enabled(struct uart_port *port) |
67 | #define rx_enabled(port) ((port)->unused[1]) | 67 | { |
68 | return port->unused[0] & 1; | ||
69 | } | ||
70 | |||
71 | static inline int rx_enabled(struct uart_port *port) | ||
72 | { | ||
73 | return port->unused[0] & 2; | ||
74 | } | ||
75 | |||
76 | static inline int ms_enabled(struct uart_port *port) | ||
77 | { | ||
78 | return port->unused[0] & 4; | ||
79 | } | ||
80 | |||
81 | static inline void ms_enable(struct uart_port *port, int enabled) | ||
82 | { | ||
83 | if(enabled) | ||
84 | port->unused[0] |= 4; | ||
85 | else | ||
86 | port->unused[0] &= ~4; | ||
87 | } | ||
88 | |||
89 | static inline void rx_enable(struct uart_port *port, int enabled) | ||
90 | { | ||
91 | if(enabled) | ||
92 | port->unused[0] |= 2; | ||
93 | else | ||
94 | port->unused[0] &= ~2; | ||
95 | } | ||
96 | |||
97 | static inline void tx_enable(struct uart_port *port, int enabled) | ||
98 | { | ||
99 | if(enabled) | ||
100 | port->unused[0] |= 1; | ||
101 | else | ||
102 | port->unused[0] &= ~1; | ||
103 | } | ||
68 | 104 | ||
69 | 105 | ||
70 | #ifdef SUPPORT_SYSRQ | 106 | #ifdef SUPPORT_SYSRQ |
@@ -75,7 +111,7 @@ static void ks8695uart_stop_tx(struct uart_port *port) | |||
75 | { | 111 | { |
76 | if (tx_enabled(port)) { | 112 | if (tx_enabled(port)) { |
77 | disable_irq(KS8695_IRQ_UART_TX); | 113 | disable_irq(KS8695_IRQ_UART_TX); |
78 | tx_enabled(port) = 0; | 114 | tx_enable(port, 0); |
79 | } | 115 | } |
80 | } | 116 | } |
81 | 117 | ||
@@ -83,7 +119,7 @@ static void ks8695uart_start_tx(struct uart_port *port) | |||
83 | { | 119 | { |
84 | if (!tx_enabled(port)) { | 120 | if (!tx_enabled(port)) { |
85 | enable_irq(KS8695_IRQ_UART_TX); | 121 | enable_irq(KS8695_IRQ_UART_TX); |
86 | tx_enabled(port) = 1; | 122 | tx_enable(port, 1); |
87 | } | 123 | } |
88 | } | 124 | } |
89 | 125 | ||
@@ -91,18 +127,24 @@ static void ks8695uart_stop_rx(struct uart_port *port) | |||
91 | { | 127 | { |
92 | if (rx_enabled(port)) { | 128 | if (rx_enabled(port)) { |
93 | disable_irq(KS8695_IRQ_UART_RX); | 129 | disable_irq(KS8695_IRQ_UART_RX); |
94 | rx_enabled(port) = 0; | 130 | rx_enable(port, 0); |
95 | } | 131 | } |
96 | } | 132 | } |
97 | 133 | ||
98 | static void ks8695uart_enable_ms(struct uart_port *port) | 134 | static void ks8695uart_enable_ms(struct uart_port *port) |
99 | { | 135 | { |
100 | enable_irq(KS8695_IRQ_UART_MODEM_STATUS); | 136 | if (!ms_enabled(port)) { |
137 | enable_irq(KS8695_IRQ_UART_MODEM_STATUS); | ||
138 | ms_enable(port,1); | ||
139 | } | ||
101 | } | 140 | } |
102 | 141 | ||
103 | static void ks8695uart_disable_ms(struct uart_port *port) | 142 | static void ks8695uart_disable_ms(struct uart_port *port) |
104 | { | 143 | { |
105 | disable_irq(KS8695_IRQ_UART_MODEM_STATUS); | 144 | if (ms_enabled(port)) { |
145 | disable_irq(KS8695_IRQ_UART_MODEM_STATUS); | ||
146 | ms_enable(port,0); | ||
147 | } | ||
106 | } | 148 | } |
107 | 149 | ||
108 | static irqreturn_t ks8695uart_rx_chars(int irq, void *dev_id) | 150 | static irqreturn_t ks8695uart_rx_chars(int irq, void *dev_id) |
@@ -285,8 +327,9 @@ static int ks8695uart_startup(struct uart_port *port) | |||
285 | int retval; | 327 | int retval; |
286 | 328 | ||
287 | set_irq_flags(KS8695_IRQ_UART_TX, IRQF_VALID | IRQF_NOAUTOEN); | 329 | set_irq_flags(KS8695_IRQ_UART_TX, IRQF_VALID | IRQF_NOAUTOEN); |
288 | tx_enabled(port) = 0; | 330 | tx_enable(port, 0); |
289 | rx_enabled(port) = 1; | 331 | rx_enable(port, 1); |
332 | ms_enable(port, 1); | ||
290 | 333 | ||
291 | /* | 334 | /* |
292 | * Allocate the IRQ | 335 | * Allocate the IRQ |