diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch b/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch new file mode 100644 index 00000000..a7415ff0 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch @@ -0,0 +1,83 @@ +From fa589f1ad83e8795ba0509e7899dd1a6926c5fbd Mon Sep 17 00:00:00 2001 +From: Philip Balister <philip@opensdr.com> +Date: Thu, 22 Apr 2010 19:41:58 -0700 +Subject: [PATCH 2/3] Add functions to dma.c to set address and length for src and dest. + +--- + arch/arm/plat-omap/dma.c | 30 ++++++++++++++++++++++++++++++ + arch/arm/plat-omap/include/plat/dma.h | 4 ++++ + 2 files changed, 34 insertions(+), 0 deletions(-) + +diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c +index c4b2b47..f28f756 100644 +--- a/arch/arm/plat-omap/dma.c ++++ b/arch/arm/plat-omap/dma.c +@@ -471,6 +471,21 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) + } + EXPORT_SYMBOL(omap_set_dma_src_burst_mode); + ++void omap_set_dma_src_addr_size(int lch, unsigned int addr, int elem_count) ++{ ++ ++ if (cpu_class_is_omap1()) { ++ p->dma_write(addr >> 16, CSSA, lch); ++ //p->dma_write((u16)addr, CSSA_L, lch); ++ } ++ ++ if (cpu_class_is_omap2()) ++ p->dma_write(addr, CSSA, lch); ++ ++ p->dma_write(elem_count, CEN, lch); ++} ++EXPORT_SYMBOL_GPL(omap_set_dma_src_addr_size); ++ + /* Note that dest_port is only for OMAP1 */ + void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, + unsigned long dest_start, +@@ -561,6 +576,21 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) + } + EXPORT_SYMBOL(omap_set_dma_dest_burst_mode); + ++void omap_set_dma_dest_addr_size(int lch, unsigned int addr, int elem_count) ++{ ++ ++ if (cpu_class_is_omap1()) { ++ p->dma_write(addr >> 16, CDSA, lch); ++ //p->dma_write((u16)addr, CDSA_L, lch); ++ } ++ ++ if (cpu_class_is_omap2()) ++ p->dma_write(addr, CDSA, lch); ++ ++ p->dma_write(elem_count, CEN, lch); ++} ++EXPORT_SYMBOL_GPL(omap_set_dma_dest_addr_size); ++ + static inline void omap_enable_channel_irq(int lch) + { + u32 status; +diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h +index d1c916f..1e7243e 100644 +--- a/arch/arm/plat-omap/include/plat/dma.h ++++ b/arch/arm/plat-omap/include/plat/dma.h +@@ -462,6 +462,8 @@ extern void omap_set_dma_src_index(int lch, int eidx, int fidx); + extern void omap_set_dma_src_data_pack(int lch, int enable); + extern void omap_set_dma_src_burst_mode(int lch, + enum omap_dma_burst_mode burst_mode); ++extern void omap_set_dma_src_addr_size(int lch, unsigned int addr, ++ int elem_count); + + extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, + unsigned long dest_start, +@@ -470,6 +472,8 @@ extern void omap_set_dma_dest_index(int lch, int eidx, int fidx); + extern void omap_set_dma_dest_data_pack(int lch, int enable); + extern void omap_set_dma_dest_burst_mode(int lch, + enum omap_dma_burst_mode burst_mode); ++extern void omap_set_dma_dest_addr_size(int lch, unsigned int addr, ++ int elem_count); + + extern void omap_set_dma_params(int lch, + struct omap_dma_channel_params *params); +-- +1.6.6.1 + |