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[media] mantis: add remote control support

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The embedded UART is apparently used to receive decoded IR (RC5?) codes.
Forward these scan codes to the RC framework and (where known) add
corresponding mapping tables to translate them into regular keys.

This patch has been tested on a TechniSat CableStar HD2. The mappings of other
rc-maps were taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/) and the s2-liplianin repository. The
major difference to Christoph's patch is a reworked interrupt handling of the
UART because the RX interrupt is apparently level triggered and requires
masking until the FIFO is read by the UART worker.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Jan Klötzke
2015-06-06 16:58:13 -03:00
committed by Mauro Carvalho Chehab
parent 1c35cf9cca
commit a96762da0c
9 changed files with 167 additions and 151 deletions
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5
drivers/media/pci/mantis/mantis_dma.c
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@@ -190,7 +190,7 @@ void mantis_dma_start(struct mantis_pci *mantis)
mmwrite(0, MANTIS_DMA_CTL);
mantis->last_block = mantis->busy_block = 0;
mmwrite(mmread(MANTIS_INT_MASK) | MANTIS_INT_RISCI, MANTIS_INT_MASK);
mantis_unmask_ints(mantis, MANTIS_INT_RISCI);
mmwrite(MANTIS_FIFO_EN | MANTIS_DCAP_EN
| MANTIS_RISC_EN, MANTIS_DMA_CTL);
@@ -209,8 +209,7 @@ void mantis_dma_stop(struct mantis_pci *mantis)
mmwrite(mmread(MANTIS_INT_STAT), MANTIS_INT_STAT);
mmwrite(mmread(MANTIS_INT_MASK) & ~(MANTIS_INT_RISCI |
MANTIS_INT_RISCEN), MANTIS_INT_MASK);
mantis_mask_ints(mantis, MANTIS_INT_RISCI | MANTIS_INT_RISCEN);
}