diff options
| author | Daniel Scheller <d.scheller@gmx.net> | 2018-04-09 18:47:41 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-05-04 16:35:39 +0200 |
| commit | e8227689f93984348468c9153e23db06ef95491e (patch) | |
| tree | 07ac9733e62b8261f1c3b7723fb2352adcd76949 /drivers/media/pci/ddbridge | |
| parent | media: ddbridge: add helper for IRQ handler setup (diff) | |
| download | linux-e8227689f93984348468c9153e23db06ef95491e.tar.xz linux-e8227689f93984348468c9153e23db06ef95491e.zip | |
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>
Diffstat (limited to 'drivers/media/pci/ddbridge')
| -rw-r--r-- | drivers/media/pci/ddbridge/ddbridge-core.c | 67 |
1 files changed, 27 insertions, 40 deletions
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c index 707a479e7b18..951abcee768a 100644 --- a/drivers/media/pci/ddbridge/ddbridge-core.c +++ b/drivers/media/pci/ddbridge/ddbridge-core.c @@ -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) |