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media: ddbridge: add macros to handle IRQs in nibble and byte blocks 

Currently, each IRQ requires one IRQ_HANDLE() line to call each IRQ
handler that was set up. Add a IRQ_HANDLE_NIBBLE() and IRQ_HANDLE_BYTE()
macro to call all handlers in blocks of four (_NIBBLE) or eight (_BYTE)
handlers at a time, to make this construct more compact.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Daniel Scheller 2018-04-09 12:47:41 -04:00 committed by Mauro Carvalho Chehab
parent 1dda87ac15
commit e8227689f9
1 changed files with 27 additions and 40 deletions
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67
drivers/media/pci/ddbridge/ddbridge-core.c
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@ -2388,54 +2388,41 @@ void ddb_ports_release(struct ddb *dev)
dev->link[0].irq[_nr].handler(dev->link[0].irq[_nr].data); } \
while (0)
#define IRQ_HANDLE_NIBBLE(_shift) { \
if (s & (0x0000000f << ((_shift) & 0x1f))) { \
IRQ_HANDLE(0 + (_shift)); \
IRQ_HANDLE(1 + (_shift)); \
IRQ_HANDLE(2 + (_shift)); \
IRQ_HANDLE(3 + (_shift)); \
} \
}
#define IRQ_HANDLE_BYTE(_shift) { \
if (s & (0x000000ff << ((_shift) & 0x1f))) { \
IRQ_HANDLE(0 + (_shift)); \
IRQ_HANDLE(1 + (_shift)); \
IRQ_HANDLE(2 + (_shift)); \
IRQ_HANDLE(3 + (_shift)); \
IRQ_HANDLE(4 + (_shift)); \
IRQ_HANDLE(5 + (_shift)); \
IRQ_HANDLE(6 + (_shift)); \
IRQ_HANDLE(7 + (_shift)); \
} \
}
static void irq_handle_msg(struct ddb *dev, u32 s)
{
dev->i2c_irq++;
IRQ_HANDLE(0);
IRQ_HANDLE(1);
IRQ_HANDLE(2);
IRQ_HANDLE(3);
IRQ_HANDLE_NIBBLE(0);
}
static void irq_handle_io(struct ddb *dev, u32 s)
{
dev->ts_irq++;
if ((s & 0x000000f0)) {
IRQ_HANDLE(4);
IRQ_HANDLE(5);
IRQ_HANDLE(6);
IRQ_HANDLE(7);
}
if ((s & 0x0000ff00)) {
IRQ_HANDLE(8);
IRQ_HANDLE(9);
IRQ_HANDLE(10);
IRQ_HANDLE(11);
IRQ_HANDLE(12);
IRQ_HANDLE(13);
IRQ_HANDLE(14);
IRQ_HANDLE(15);
}
if ((s & 0x00ff0000)) {
IRQ_HANDLE(16);
IRQ_HANDLE(17);
IRQ_HANDLE(18);
IRQ_HANDLE(19);
IRQ_HANDLE(20);
IRQ_HANDLE(21);
IRQ_HANDLE(22);
IRQ_HANDLE(23);
}
if ((s & 0xff000000)) {
IRQ_HANDLE(24);
IRQ_HANDLE(25);
IRQ_HANDLE(26);
IRQ_HANDLE(27);
IRQ_HANDLE(28);
IRQ_HANDLE(29);
IRQ_HANDLE(30);
IRQ_HANDLE(31);
}
IRQ_HANDLE_NIBBLE(4);
IRQ_HANDLE_BYTE(8);
IRQ_HANDLE_BYTE(16);
IRQ_HANDLE_BYTE(24);
}
irqreturn_t ddb_irq_handler0(int irq, void *dev_id)