mirror of
https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012 Stephen Warren
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*/
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#include <common.h>
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#include <memalign.h>
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#include <phys2bus.h>
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#include <asm/arch/mbox.h>
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struct msg_set_power_state {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_set_power_state set_power_state;
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u32 end_tag;
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};
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struct msg_get_clock_rate {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
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u32 end_tag;
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};
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struct msg_query {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_physical_w_h physical_w_h;
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u32 end_tag;
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};
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struct msg_setup {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_physical_w_h physical_w_h;
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struct bcm2835_mbox_tag_virtual_w_h virtual_w_h;
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struct bcm2835_mbox_tag_depth depth;
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struct bcm2835_mbox_tag_pixel_order pixel_order;
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struct bcm2835_mbox_tag_alpha_mode alpha_mode;
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struct bcm2835_mbox_tag_virtual_offset virtual_offset;
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struct bcm2835_mbox_tag_overscan overscan;
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struct bcm2835_mbox_tag_allocate_buffer allocate_buffer;
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struct bcm2835_mbox_tag_pitch pitch;
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u32 end_tag;
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};
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int bcm2835_power_on_module(u32 module)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1);
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int ret;
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BCM2835_MBOX_INIT_HDR(msg_pwr);
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BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
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SET_POWER_STATE);
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msg_pwr->set_power_state.body.req.device_id = module;
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msg_pwr->set_power_state.body.req.state =
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BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
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BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
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&msg_pwr->hdr);
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if (ret) {
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printf("bcm2835: Could not set module %u power state\n",
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module);
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return -EIO;
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}
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return 0;
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}
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int bcm2835_get_mmc_clock(u32 clock_id)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
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int ret;
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ret = bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
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if (ret)
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return ret;
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BCM2835_MBOX_INIT_HDR(msg_clk);
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BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
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msg_clk->get_clock_rate.body.req.clock_id = clock_id;
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
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if (ret) {
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printf("bcm2835: Could not query eMMC clock rate\n");
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return -EIO;
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}
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return msg_clk->get_clock_rate.body.resp.rate_hz;
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}
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int bcm2835_get_video_size(int *widthp, int *heightp)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_query, msg_query, 1);
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int ret;
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BCM2835_MBOX_INIT_HDR(msg_query);
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BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_query->physical_w_h,
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GET_PHYSICAL_W_H);
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_query->hdr);
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if (ret) {
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printf("bcm2835: Could not query display resolution\n");
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return ret;
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}
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*widthp = msg_query->physical_w_h.body.resp.width;
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*heightp = msg_query->physical_w_h.body.resp.height;
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return 0;
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}
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int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp,
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int pixel_order, int alpha_mode, ulong *fb_basep,
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ulong *fb_sizep, int *pitchp)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_setup, msg_setup, 1);
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int ret;
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BCM2835_MBOX_INIT_HDR(msg_setup);
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BCM2835_MBOX_INIT_TAG(&msg_setup->physical_w_h, SET_PHYSICAL_W_H);
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msg_setup->physical_w_h.body.req.width = *widthp;
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msg_setup->physical_w_h.body.req.height = *heightp;
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BCM2835_MBOX_INIT_TAG(&msg_setup->virtual_w_h, SET_VIRTUAL_W_H);
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msg_setup->virtual_w_h.body.req.width = *widthp;
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msg_setup->virtual_w_h.body.req.height = *heightp;
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BCM2835_MBOX_INIT_TAG(&msg_setup->depth, SET_DEPTH);
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msg_setup->depth.body.req.bpp = 32;
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BCM2835_MBOX_INIT_TAG(&msg_setup->pixel_order, SET_PIXEL_ORDER);
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msg_setup->pixel_order.body.req.order = pixel_order;
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BCM2835_MBOX_INIT_TAG(&msg_setup->alpha_mode, SET_ALPHA_MODE);
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msg_setup->alpha_mode.body.req.alpha = alpha_mode;
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BCM2835_MBOX_INIT_TAG(&msg_setup->virtual_offset, SET_VIRTUAL_OFFSET);
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msg_setup->virtual_offset.body.req.x = 0;
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msg_setup->virtual_offset.body.req.y = 0;
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BCM2835_MBOX_INIT_TAG(&msg_setup->overscan, SET_OVERSCAN);
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msg_setup->overscan.body.req.top = 0;
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msg_setup->overscan.body.req.bottom = 0;
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msg_setup->overscan.body.req.left = 0;
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msg_setup->overscan.body.req.right = 0;
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BCM2835_MBOX_INIT_TAG(&msg_setup->allocate_buffer, ALLOCATE_BUFFER);
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msg_setup->allocate_buffer.body.req.alignment = 0x100;
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BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_setup->pitch, GET_PITCH);
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_setup->hdr);
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if (ret) {
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printf("bcm2835: Could not configure display\n");
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return ret;
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}
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*widthp = msg_setup->physical_w_h.body.resp.width;
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*heightp = msg_setup->physical_w_h.body.resp.height;
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*pitchp = msg_setup->pitch.body.resp.pitch;
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*fb_basep = bus_to_phys(
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msg_setup->allocate_buffer.body.resp.fb_address);
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*fb_sizep = msg_setup->allocate_buffer.body.resp.fb_size;
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return 0;
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}
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